The present disclosure generally provides 7xxx series aluminum alloy products in a stable T4 temper. The disclosure also provides methods of making such products, for example, using processes that include a combination of casting, rolling, solutionizing, quenching, reheating, and slow cooling. The disclosure also provides various end uses of such products, such as in automotive, transportation, electronics, and industrial applications.
C22F 1/047 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages d'alliages avec le magnésium comme second constituant majeur
B21B 3/00 - Laminage des matériaux faits d'alliages particuliers dans la mesure où la nature de l'alliage exige ou permet l'emploi de méthodes ou de séquences particulières
B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
C22C 21/08 - Alliages à base d'aluminium avec le magnésium comme second constituant majeur avec du silicium
C22F 1/053 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages d'alliages avec le zinc comme second constituant majeur
2.
HIGH-STRENGTH CORROSION-RESISTANT ALUMINUM ALLOY AND METHOD OF MAKING THE SAME
Disclosed are high-strength aluminum alloys and methods of making and processing such alloys. The aluminum alloys described herein exhibit improved mechanical strength, deformability, and corrosion resistance properties. In addition, the aluminum alloys can be prepared from recycled materials. The aluminum alloy products prepared from the alloys described herein include precipitates to enhance strength, such as MgZn2 / Mg(Zn,Cu)2, Mg2Si, and Al4Mg8Si7Cu2.
C22C 21/08 - Alliages à base d'aluminium avec le magnésium comme second constituant majeur avec du silicium
C22F 1/05 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages d'alliages de type Al-Si-Mg, c.-à-d. contenant du silicium et du magnésium en proportions sensiblement égales
3.
IN-SITU HOMOGENIZATION OF DC CAST METALS WITH ADDITIONAL QUENCH
The invention relates to a method and apparatus for direct chill casting ingots with in-situ homogenization. Large particles of eutectic materia! may form in the solid ingot and the metal may exhibit macrosegregation of alloying components, especially when large ingots are cast in this way. This can be alleviated by applying a first liquid coolant to the ingot emerging from the mold, removing the first liquid coolant at a certain distance along the ingot by means of a wiper, and then applying a second liquid coolant to perform a quench at a greater distance along the ingot. The quench raises the level of the molten sump in the ingot, which helps to overcome the indicated problems, without affecting the desired temperature rebound of the ingot shell (usually at least 425°C (797°F)) for a time effective to cause in-situ homogenization.
Embodiments of the invention relate to a method and apparatus for continuously casting a metal slab. The method involves continuously introducing molten metal into an inlet of a casting cavity defined between advancing casting surfaces, cooling the metal in the cavity to form a metal slab, and discharging the slab from the cavity through an outlet. The casting surfaces have an ability to remove heat from the metal but this ability is reduced, thus reducing heat flux, for at least one of the casting surfaces in a region of the cavity spaced from both the inlet and the outlet and extending transversely to the casting direction. This reduced ability to remove heat is relative to such ability of the casting surface in immediately adjacent upstream and downstream regions of the cavity. The apparatus may be a twin belt caster or other form of continuous caster modified to perform the method.
The invention relates to a method and apparatus for direct chill casting ingots with in-situ homogenization. Large particles of eutectic materia! may form in the solid ingot and the metal may exhibit macrosegregation of alloying components, especially when large ingots are cast in this way. This can be alleviated by applying a first liquid coolant to the ingot emerging from the mold, removing the first liquid coolant at a certain distance along the ingot by means of a wiper, and then applying a second liquid coolant to perform a quench at a greater distance along the ingot. The quench raises the level of the molten sump in the ingot, which helps to overcome the indicated problems, without affecting the desired temperature rebound of the ingot shell (usually at least 425°C (797°F)) for a time effective to cause in-situ homogenization.
The present invention relates to an aluminium alloy product for use as a finstock material within brazed heat exchangers and, more particularly, to a finstock material having high strength and conductivity after brazing. The invention is an aluminium alloy finstock comprising the following composition in weight %: Fe 0.8-1.25; Si 0.8-1.25; Mn 0.70-1.50; Cu 0.05-0.50; Zn up to 2.5; other elements less than or equal to 0.05 each and less than or equal to 0.15 in total; and balance aluminium. The invention also relates to a method of making the finstock material.
C22C 1/02 - Fabrication des alliages non ferreux par fusion
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
The present invention relates to an aluminium alloy product for use as a finstock material within brazed heat exchangers and, more particularly, to a finstock material having high strength and conductivity after brazing. The invention is an aluminium alloy finstock comprising the following composition in weight %: Fe 0.8-1.25; Si 0.8-1.25; Mn 0.70-1.50; Cu 0.05-0.50; Zn up to 2.5; other elements less than or equal to 0.05 each and less than or equal to 0.15 in total; and balance aluminium. The invention also relates to a method of making the finstock material.
C22C 1/02 - Fabrication des alliages non ferreux par fusion
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
In a first aspect, the invention provides aluminium alloy comprising the following composition, all values in weight %: Si 0.25 - 1.5 Cu 0.3 - 1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium. In a second aspect, the invention provides a composite aluminium sheet product comprising a core layer and at least one clad layer wherein the at least one clad layer is an aluminium alloy comprising the following composition, all values in weight%: Si 0.25 - 1.5 Cu 0.3 - 1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium. In a third aspect, the invention provides a method of making a joined structure of a steel component and an aluminium component made from the alloy and/or the sheet product of the invention.
B23K 26/323 - Assemblage tenant compte des propriétés du matériau concerné faisant intervenir des parties faites de matériaux métalliques dissemblables
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22C 21/14 - Alliages à base d'aluminium avec le cuivre comme second constituant majeur avec du silicium
In a first aspect, the invention provides aluminium alloy comprising the following composition, all values in weight %: Si 0.25 - 1.5 Cu 0.3 - 1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium. In a second aspect, the invention provides a composite aluminium sheet product comprising a core layer and at least one clad layer wherein the at least one clad layer is an aluminium alloy comprising the following composition, all values in weight%: Si 0.25 - 1.5 Cu 0.3 - 1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium. In a third aspect, the invention provides a method of making a joined structure of a steel component and an aluminium component made from the alloy and/or the sheet product of the invention.
ADITYA BIRLA SCIENCE AND TECHNOLOGY CO. LTD., (Inde)
NOVELIS INC. (Canada)
Inventeur(s)
Srivastava, Vivek
Hotz, Walter
Borole, Yogesh
Tilak, Anurag
Giri, Anirban
Abrégé
A process for producing metallic carbide particulate reinforced aluminum alloy matrix composite comprises the following steps: a) providing a molten aluminum matrix maintained at a temperature in the range of 750°C to 1200 °C; b) pneumatically injecting a metal containing compound into said molten matrix to form an alloy melt; c) injecting a hydrocarbon compound into said melt, to generate in-situ carbon for reacting with said melt, to obtain molten alloy containing metallic carbide particulate; and d) casting and solidifying said molten alloy.
C22C 1/10 - Alliages contenant des composants non métalliques
C22C 32/00 - Alliages non ferreux contenant entre 5 et 50% en poids d'oxydes, de carbures, de borures, de nitrures, de siliciures ou d'autres composés métalliques, p. ex. oxynitrures, sulfures, qu'ils soient soient ajoutés comme tels ou formés in situ
The invention provides a method of reducing butt curl during DC casting of a metal ingot. The ingot is cast in at least two stages, including an initial casting stage and then a steady-state casting stage carried out at higher casting speed. The emerging ingot is cooled by directing a liquid coolant onto its outer surface. During the first casting stage, the liquid coolant is directed in the form of at least two streams, including a constant first stream in the form of a series of first jets, and an intermittent second stream in the form of a series of second jets. The first and second jets impact the outer surface at locations spaced from each other peripherally and/or longitudinally of the ingot. Both the first and second streams experience film boiling when they contact the ingot. The invention includes apparatus for the method.
B22D 11/049 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond pour la coulée à refroidissement direct, p. ex. coulée dans un champ électromagnétique
B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
12.
METHOD AND APPARATUS FOR REMOVING COOLANT LIQUID FROM MOVING METAL STRIP
Exemplary embodiments of the invention include a method and apparatus for cooling a metal strip that is being advanced in a generally horizontal fashion. The method involves delivering a coolant liquid onto a lower surface of the strip from below across the entire width of the strip, preventing the coolant liquid from contacting the upper surface of the strip, and optionally subsequently removing the coolant liquid from the lower surface. The coolant liquid is prevented from contacting the upper surface by forming a gas-directing channel immediately above the upper surface of the strip adjacent to one or preferably both lateral edges of the strip and forcing a gas through the channel in a direction generally away from a center of the strip towards the one or both lateral edges to deflect coolant liquid away from the upper surface of the strip. The apparatus provides means for carrying out these steps.
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
13.
REDUCTION OF BUTT CURL BY PULSED WATER FLOW IN DC CASTING
The invention provides a method of reducing butt curl during DC casting of a metal ingot. The ingot is cast in at least two stages, including an initial casting stage and then a steady-state casting stage carried out at higher casting speed. The emerging ingot is cooled by directing a liquid coolant onto its outer surface. During the first casting stage, the liquid coolant is directed in the form of at least two streams, including a constant first stream in the form of a series of first jets, and an intermittent second stream in the form of a series of second jets. The first and second jets impact the outer surface at locations spaced from each other peripherally and/or longitudinally of the ingot. Both the first and second streams experience film boiling when they contact the ingot. The invention includes apparatus for the method.
B22D 15/00 - Coulée utilisant un moule ou un noyau dont une partie importante, pour le procédé, est de conductibilité thermique élevée, p. ex. coulée contre refroidisseursMoules ou accessoires spécialement adaptés à cette technique
An exemplary embodiment provides a regenerative burner apparatus. The apparatus includes a burner housing having a gas channel extending there-through, and a single-stage heat regenerator equipped with a housing enclosing a fluid-porous heat regenerative media bed having an upper surface and a lower surface. The housing has an opening communicating with the exterior of the apparatus. A first gas passageway in said housing directly interconnects the gas channel of the burner housing and the lower surface of the heat regenerative media bed. A second gas passageway in the housing interconnects the opening in the housing communicating with the exterior and the upper surface of the heat regenerative media bed. The first and second gas passageways are in communication with each other only through the heat regenerative media bed. This arrangement allows hot waste combustion gases to pass upwardly through the media bed so that any condensable contaminant in the gases condenses to a liquid in the media bed and flows out of the bed under gravity before becoming solid. The liquid contaminant may then be removed from the regenerator from a position below the media bed.
An exemplary embodiment provides a method of fully or partially eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting a metal ingot by introducing molten metal into a direct chill casting mold from a spout to form an upright ingot having an upper surface at a predetermined height. Upon completion of the casting, the lower tip of the spout is preferably maintained below the upper surface in molten metal at or near a center of the upper surface of the ingot. The metal flow through the spout is terminated while maintaining sufficient heat in metal within and supplying the spout to keep the metal molten for subsequent delivery through the spout. A partial shrinkage cavity is allowed to form in the upper surface of the ingot as metal of the ingot shrinks and contracts. Preferably before the partial cavity exposes the lower tip of the spout, the partial shrinkage cavity is preferably over-filled with molten metal, while all or significant spillage of molten metal from the partial cavity is avoided, and then the flow of metal through the spout is terminated. The steps of allowing a partial shrinkage cavity to form in the upper surface and then preferably over-filling the partial shrinkage cavity with molten metal from the spout before the cavity exposes the lower tip is repeated, preferably until no further contraction of the metal of the ingot causes any part of the upper surface to contract below the predetermined height. The spout is then removed from contact with molten metal of the ingot and all parts of the ingot are allowed to cool to a temperature at which the metal is fully solid.
An exemplary embodiment provides a method of eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting an upright ingot having an upper surface at an intended height. Upon completion of the casting, the lower tip of the spout is maintained below the molten metal near the center of the upper surface. The metal flow through the spout is terminated and a partial shrinkage cavity is allowed to form as metal of the ingot shrinks and contracts. Before the partial cavity exposes the lower tip of the spout, the cavity is preferably over-filled with molten metal, while avoiding spillage of molten metal, and then the flow of metal through the spout is terminated. These steps are repeated until no further contraction of the metal causes any part of the upper surface to contract below the intended ingot height.
B22D 11/049 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond pour la coulée à refroidissement direct, p. ex. coulée dans un champ électromagnétique
An exemplary embodiment provides a method of fully or partially eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting a metal ingot by introducing molten metal into a direct chill casting mold from a spout to form an upright ingot having an upper surface at a predetermined height. Upon completion of the casting, the lower tip of the spout is preferably maintained below the upper surface in molten metal at or near a center of the upper surface of the ingot. The metal flow through the spout is terminated while maintaining sufficient heat in metal within and supplying the spout to keep the metal molten for subsequent delivery through the spout. A partial shrinkage cavity is allowed to form in the upper surface of the ingot as metal of the ingot shrinks and contracts. Preferably before the partial cavity exposes the lower tip of the spout, the partial shrinkage cavity is preferably over‐filled with molten metal, while all or significant spillage of molten metal from the partial cavity is avoided, and then the flow of metal through the spout is terminated. The steps of allowing a partial shrinkage cavity to form in the upper surface and then preferably over‐filling the partial shrinkage cavity with molten metal from the spout before the cavity exposes the lower tip is repeated, preferably until no further contraction of the metal of the ingot causes any part of the upper surface to contract below the predetermined height. The spout is then removed from contact with molten metal of the ingot and all parts of the ingot are allowed to cool to a temperature at which the metal is fully solid.
An exemplary embodiment provides a regenerative burner apparatus. The apparatus includes a burner housing having a gas channel extending there-through, and a single-stage heat regenerator equipped with a housing enclosing a fluid-porous heat regenerative media bed having an upper surface and a lower surface. The housing has an opening communicating with the exterior of the apparatus. A first gas passageway in said housing directly interconnects the gas channel of the burner housing and the lower surface of the heat regenerative media bed. A second gas passageway in the housing interconnects the opening in the housing communicating with the exterior and the upper surface of the heat regenerative media bed. The first and second gas passageways are in communication with each other only through the heat regenerative media bed. This arrangement allows hot waste combustion gases to pass upwardly through the media bed so that any condensable contaminant in the gases condenses to a liquid in the media bed and flows out of the bed under gravity before becoming solid. The liquid contaminant may then be removed from the regenerator from a position below the media bed.
The invention relates to a lithographic sheet product having the following composition: Zn 0.5 - 2.5%, Fe up to 0.6%, Si up to 0.25%, Mg up to 1.5%, Mn up to 1.5%, other elements up to 0.05% each and up to 0.15% in total balance aluminium. The invention also relates to a method of producing a lithographic sheet product.
The invention relates to a pallet made up of plural hollow sections of generally rectangular transverse profile formed from metal tubes, the sections having upper walls facing in the same direction and being secured together in side-by-side and/or end-to-end array to constitute a load-bearing platform. The lower wall of each section may have a longitudinal central rib projecting toward the upper wall for additional strength. The tubes can be hollow transversely corrugated cylinders of metal such as aluminum, used as cores for winding strip material. A method of making the pallet includes the steps of deforming plural metal tubes with generally radially directed pressure to produce the pallet sections, and' securing the sections together.
B65D 19/24 - Palettes rigides sans parois latérales avec corps moulés ou faits d'une seule pièce
B21D 9/05 - Cintrage des tubes par utilisation de mandrins ou d'organes analogues coopérant avec des organes de formage
B65D 19/28 - Palettes rigides sans parois latérales avec corps formés par jonction ou union de plusieurs éléments faits entièrement ou essentiellement en métal
The invention relates to a multilayer tube product comprising inner and outer plastic, or polymer, layers and an intermediate metallic layer characterized in that the intermediate metallic layer comprises an aluminium sheet having the composition (values in weight %): Si 1.5 to 4% Mg 0.3 to 3.0% Mn up to 1.5% Fe up to 1.0% Cu up to 0.5% Zn up to 0.3% other elements up to 0.05% each and up to 0.2% in total remainder aluminium The invention also relates to a multilayer tube wherein the intermediate metallic layer comprises a clad aluminium sheet having a core layer of this composition and the at least one clad layer is selected from the alloy compositions of the 1XXX, 3XXX or 7XXX series alloys.
B32B 15/08 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
B32B 15/20 - Produits stratifiés composés essentiellement de métal comportant de l'aluminium ou du cuivre
F16L 9/147 - Tubes en matériaux composites, c.-à-d. faits de matériaux non complètement couverts dans un seul des groupes précédents comportant uniquement des couches en métal et en matière plastique avec ou sans renforcement
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
Exemplary embodiments of the invention relate to a vessel used for containing molten metal, e.g. a trough section for conveying molten metal from one location to another. The vessel has a refractory liner made of at least two refractory liner units positioned end to end, with a joint between the units, the units each having an exterior surface and a metal-contacting interior surface. A housing at least partially surrounds the exterior surfaces of the refractory liner units with a gap present between the exterior surfaces and the housing. Molten metal confinement elements, impenetrable by molten metal, are positioned on opposite sides of the joint within the gap, at least below a horizontal level corresponding to a predetermined maximum working height of molten metal held within the vessel in use, to partition the gap into a molten metal confinement region between the elements and at least one other region that may be used to hold equipment such as electrical heaters that may be damaged by contact with molten metal. Another embodiment employs refractory liner units of different thermal conductivity to maximize heat penetration into the molten metal from heaters in the gap, but to minimize heat loss at the inlet and outlet of the vessel where the end units contact the housing.
Exemplary embodiments of the invention relate to a vessel used for containing molten metal, e.g. a trough section for conveying molten metal from one location to another. The vessel has a refractory liner made of at least two refractory liner units positioned end to end, with a joint between the units, the units each having an exterior surface and a metal-contacting interior surface. A housing at least partially surrounds the exterior surfaces of the refractory liner units with a gap present between the exterior surfaces and the housing. Molten metal confinement elements, impenetrable by molten metal, are positioned on opposite sides of the joint within the gap, at least below a horizontal level corresponding to a predetermined maximum working height of molten metal held within the vessel in use, to partition the gap into a molten metal confinement region between the elements and at least one other region that may be used to hold equipment such as electrical heaters that may be damaged by contact with molten metal. Another embodiment employs refractory liner units of different thermal conductivity to maximize heat penetration into the molten metal from heaters in the gap, but to minimize heat loss at the inlet and outlet of the vessel where the end units contact the housing.
Exemplary embodiments of the invention relate to a vessel used for containing molten metal, e.g. a trough section for conveying molten metal from one location to another. The vessel has a refractory liner made of at least two refractory liner units positioned end to end, with a joint between the units, the units each having an exterior surface and a metal-contacting interior surface. A housing at least partially surrounds the exterior surfaces of the refractory liner units with a gap present between the exterior surfaces and the housing. Molten metal confinement elements, impenetrable by molten metal, are positioned on opposite sides of the joint within the gap, at least below a horizontal level corresponding to a predetermined maximum working height of molten metal held within the vessel in use, to partition the gap into a molten metal confinement region between the elements and at least one other region that may be used to hold equipment such as electrical heaters that may be damaged by contact with molten metal. Another embodiment employs refractory liner units of different thermal conductivity to maximize heat penetration into the molten metal from heaters in the gap, but to minimize heat loss at the inlet and outlet of the vessel where the end units contact the housing.
An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.
B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
B22D 15/00 - Coulée utilisant un moule ou un noyau dont une partie importante, pour le procédé, est de conductibilité thermique élevée, p. ex. coulée contre refroidisseursMoules ou accessoires spécialement adaptés à cette technique
26.
Casting composite ingot with metal temperature compensation
An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.
An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.
B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
B22D 15/00 - Coulée utilisant un moule ou un noyau dont une partie importante, pour le procédé, est de conductibilité thermique élevée, p. ex. coulée contre refroidisseursMoules ou accessoires spécialement adaptés à cette technique
28.
METHODS AND APPARATUS FOR ROLL-COATING SHEET ARTICLES USING METERING ROLL OF VARIABLE PROFILE
Methods and apparatus for coating a major surface of a strip article advancing past and in contact with an applicator roll by supplying coating material to the applicator roll for transfer to the strip surface while urging a metering roll against the applicator roll to impart a coating profile to the coating material on the applicator roll before the coating material having that profile is transferred to the strip surface, wherein the metering roll is subjected to a force for bending the axis of the metering roll convexly toward the applicator roll, thereby to compensate for deflection of the metering roll that would otherwise tend to cause nonuniformity of applied coating weight across the width of the strip.
B05D 1/28 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par transfert de liquides ou d'autres matériaux fluides, à partir de la surface d'éléments porteurs, p. ex. de pinceaux, tampons, rouleaux
B05C 1/08 - Appareillages dans lesquels un liquide ou autre matériau fluide est appliqué à la surface de l'ouvrage par contact avec un élément portant le liquide ou autre matériau fluide, p. ex. un élément poreux imprégné du liquide à appliquer sous forme de revêtement pour appliquer un liquide ou autre matériau fluide à un ouvrage de longueur indéfinie en utilisant un rouleau
29.
METHODS OF PRESSURE FORMING METAL CONTAINERS AND THE LIKE FROM PREFORMS HAVING WALL THICKNESS GRADIENT
A method of forming a bottle-shaped or other contoured metal container by providing a hollow metal preform having a closed end and a wall thickness that decreases progressively in a direction away from the closed end, and subjecting the preform to internal fluid pressure to cause the preform to expand against the wall of a die cavity defining the desired container shape. The method may be employed in pressure-ram-forming procedures wherein a punch is advanced by means of a backing ram into the die cavity to displace and deform the closed end of the preform.
B21D 26/02 - Mise en forme sans coupage, autrement qu'en utilisant des dispositifs ou outils rigides, des masses souples ou élastiques, p. ex. mise en forme en appliquant une pression de fluide ou des forces magnétiques en appliquant une pression de fluide
B21D 51/26 - Fabrication d'objets creux caractérisés par l'usage de l'objet de boîtes de conserve ou bidonsFermeture des boîtes de conserve ou des bidons de façon définitive
30.
MOLTEN METAL CONTAINMENT STRUCTURE HAVING MOVABLE COVER
An exemplary embodiment of the invention provides a molten metal containment structure, including a vessel having an internal volume for containing molten metal and an open upper end. The structure further includes a cover for the vessel having an underside facing the internal volume, the cover being movable between a closed position, covering the open upper end of the vessel with the underside of the cover, and an open position in which the cover is remote from the open upper end of the vessel to allow access to the internal volume from one side of the structure. The cover is attached to at least one lifting arm (preferably two or more) and at least on rotation control arm (preferably two or more). The lifting arm(s) operates to guide the cover from the open position to the closed position, and vice versa. The rotation control arm(s) operates to control pivoting of the cover during movement from the closed position to the open position, and vice versa, to prevent exposure of the underside of the cover, which in operation is very hot, to a person positioned adjacent to the structure at the aforesaid one side thereof. The lifting arm(s) and/or rotation control arm(s) provide a force that at least partially counterbalances a weight of the cover.
A method of forming a bottle-shaped or other contoured metal container by providing a hollow metal preform having a closed end and a wall thickness that decreases progressively in a direction away from the closed end, and subjecting the preform to internal fluid pressure to cause the preform to expand against the wall of a die cavity defining the desired container shape. The method may be employed in pressure-ram-forming procedures wherein a punch is advanced by means of a backing ram into the die cavity to displace and deform the closed end of the preform.
B21D 26/02 - Mise en forme sans coupage, autrement qu'en utilisant des dispositifs ou outils rigides, des masses souples ou élastiques, p. ex. mise en forme en appliquant une pression de fluide ou des forces magnétiques en appliquant une pression de fluide
B21D 51/26 - Fabrication d'objets creux caractérisés par l'usage de l'objet de boîtes de conserve ou bidonsFermeture des boîtes de conserve ou des bidons de façon définitive
32.
COMPRESSIVE ROD ASSEMBLY FOR MOLTEN METAL CONTAINMENT STRUCTURE
Exemplary embodiments of the invention relate to a compressive rod assembly for applying force to a refractory vessel positioned within an outer metal casing. The assembly includes a rigid elongated rod having first and second opposed ends, a threaded bolt adjacent to the first opposed end of the elongated rod, and a compressive structure positioned operationally between the elongated rod and the bolt. Compressive force applied by the bolt to the elongated rod passes through the compressive structure which allows limited longitudinal movements of the elongated rod to be accommodated by the compressive structure without requiring corresponding longitudinal movements of the bolt. Exemplary embodiments also relate to rod structure forming a component of the assembly, and to a metal containment structure having a vessel supported and compressed by at least one such assembly.
An exemplary embodiment of the invention provides a method of preparing a reinforced refractory joint between refractory sections of a vessel used for containing or conveying molten metal, e.g. a metal-contacting trough. The method involves introducing a mesh body made of metal wires into a gap between metal-contacting surfaces of adjacent refractory sections of a vessel so that the mesh body is positioned beneath the metal conveying surfaces, and covering the mesh body with a layer of moldable refractory material to seal the gap between the metal-contacting surfaces. Other embodiments relate to a vessel formed by the method and a vessel section with a pre-positioned mesh body suitable for preparing a sealed joint with other such sections.
Exemplary embodiments of the invention provide a vessel for containing or conveying molten metal therein. At least part of the outer surface of the vessel incorporates a web of metal wires embedded in the surface, the wires being mutually overlaid with openings formed therebetween. The refractory material penetrates into the openings. The web may comprise woven metal wires or non-woven wires or both. The web imparts resistance to cracking (or containment of cracks, once formed) and/or resistance to molten metal leakage if cracks develop. The invention also provides metal containment structures containing such vessels, and methods of producing the same.
Exemplary embodiments of the invention provide a molten metal containment structure including a refractory molten metal containment vessel having an external surface, and a metal casing for the vessel having an internal surface at least partially surrounding the external surface of the vessel at a distance therefrom forming a spacing between the vessel and the casing. The spacing includes an unobstructed upwardly extending gap that is vented to the exterior of the structure by upper and lower openings in the casing. A layer of insulating material is preferably positioned in the spacing between the internal surface of the casing and the external surface of the vessel, with the layer of insulating material being narrower than the spacing at least at upwardly extending sides of the casing, thereby forming the unobstructed gap. The vessel may be a metal conveying trough, a housing for a metal filter, a container for a metal degasser unit, a crucible, or the like.
Exemplary embodiments of the invention relate to a compressive rod assembly for applying force to a refractory vessel positioned within an outer metal casing. The assembly includes a rigid elongated rod having first and second opposed ends, a threaded bolt adjacent to the first opposed end of the elongated rod, and a compressive structure positioned operationally between the elongated rod and the bolt. Compressive force applied by the bolt to the elongated rod passes through the compressive structure which allows limited longitudinal movements of the elongated rod to be accommodated by the compressive structure without requiring corresponding longitudinal movements of the bolt. Exemplary embodiments also relate to rod structure forming a component of the assembly, and to a metal containment structure having a vessel supported and compressed by at least one such assembly.
Exemplary embodiments of the invention provide a vessel for containing or conveying molten metal therein. At least part of the outer surface of the vessel incorporates a web of metal wires embedded in the surface, the wires being mutually overlaid with openings formed therebetween. The refractory material penetrates into the openings. The web may comprise woven metal wires or non-woven wires or both. The web imparts resistance to cracking (or containment of cracks, once formed) and/or resistance to molten metal leakage if cracks develop. The invention also provides metal containment structures containing such vessels, and methods of producing the same.
Exemplary embodiments of the invention provide a molten metal containment structure including a refractory molten metal containment vessel having an external surface, and a metal casing for the vessel having an internal surface at least partially surrounding the external surface of the vessel at a distance therefrom forming a spacing between the vessel and the casing. The spacing includes an unobstructed upwardly extending gap that is vented to the exterior of the structure by upper and lower openings in the casing. A layer of insulating material is preferably positioned in the spacing between the internal surface of the casing and the external surface of the vessel, with the layer of insulating material being narrower than the spacing at least at upwardly extending sides of the casing, thereby forming the unobstructed gap. The vessel may be a metal conveying trough, a housing for a metal filter, a container for a metal degasser unit, a crucible, or the like.
Exemplary embodiments of the invention provide a vessel for containing or conveying molten metal therein. At least part of the outer surface of the vessel incorporates a web of metal wires embedded in the surface, the wires being mutually overlaid with openings formed therebetween. The refractory material penetrates into the openings. The web may comprise woven metal wires or non-woven wires or both. The web imparts resistance to cracking (or containment of cracks, once formed) and/or resistance to molten metal leakage if cracks develop. The invention also provides metal containment structures containing such vessels, and methods of producing the same.
An exemplary embodiment of the invention provides a method of preparing a reinforced refractory joint between refractory sections of a vessel used for containing or conveying molten metal, e.g. a metal-contacting trough. The method involves introducing a mesh body made of metal wires into a gap between metal-contacting surfaces of adjacent refractory sections of a vessel so that the mesh body is positioned beneath the metal conveying surfaces, and covering the mesh body with a layer of moldable refractory material to seal the gap between the metal-contacting surfaces. Other embodiments relate to a vessel formed by the method and a vessel section with a pre-positioned mesh body suitable for preparing a sealed joint with other such sections.
An exemplary embodiment of the invention provides a side well for a metal melting furnace. The side well comprises an insulated body having a front wall adapted to form part of an insulated side wall of a metal melting furnace and a top, a cavity within the body including a single upright well having a cylindrical wall adjacent to a closed bottom of the cavity, an entrance to the cavity at the top of the insulated body, a metal inlet channel leading directly into the cavity from an inlet aperture in the front wall, and a metal outlet channel leading directly from the cavity to a metal outlet aperture in the front wall. The side well includes a rotatable impeller having a vertical rotatable shaft and at least one vaned section positioned at a lower end of the rotatable shaft; wherein the impeller extends into the cavity with the vaned section positioned in the well adjacent to the cylindrical wall.
A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat-treatment of such ingots prior to hot working.
B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
B21B 27/06 - Lubrification, refroidissement ou chauffage des cylindres
An exemplary embodiment provides a form for providing a lining in a pipe. The form includes a body having a leading part and a trailing part, a hole in a leading side of the leading part and a channel in the body communicating with the hole. The body has a diameter at the leading part that is similar to the inner diameter of the pipe to be lined and greater than the diameter at the trailing part. The channel has at least one peripheral opening positioned rearwardly of the leading part of the form at a position to discharge lining material from the channel around the trailing part of the form and onto the interior surface of the pipe. The form is preferably provided with an attachment on the leading side for a tube supplying flowable settable lining material to and through the hole. Another embodiment relates to a method of producing a lining in a pipe which comprises supplying flowable settable lining material to the form while pulling the form through the pipe.
B05C 7/08 - Appareillages spécialement agencés pour appliquer un liquide ou autre matériau fluide à l'intérieur d'une pièce creuse par des dispositifs se déplaçant en restant en contact avec l'ouvrage pour appliquer des liquides ou d'autres matériaux fluides aux surfaces intérieures de tubes
An exemplary embodiment of the invention provides a side well for a metal melting furnace. The side well comprises an insulated body having a front wall adapted to form part of an insulated side wall of a metal melting furnace and a top, a cavity within the body including a single upright well having a cylindrical wall adjacent to a closed bottom of the cavity, an entrance to the cavity at the top of the insulated body, a metal inlet channel leading directly into the cavity from an inlet aperture in the front wall, and a metal outlet channel leading directly from the cavity to a metal outlet aperture in the front wall. The side well includes a rotatable impeller having a vertical rotatable shaft and at least one vaned section positioned at a lower end of the rotatable shaft; wherein the impeller extends into the cavity with the vaned section positioned in the well adjacent to the cylindrical wall.
Exemplary embodiments provide a movable sweat hearth for use with a metal melting furnace having a wall provided with a metal-loading entrance. The sweat hearth includes a hearth body movable relative to the furnace into and out of contact with the wall of the furnace at the entrance. The body has exterior walls enclosing a hollow interior except at a furnace-engagable side wall of the hearth body provided with an opening communicating with the interior. The interior has a floor adapted to support a charge of scrap metal, and the opening is positioned relative to the floor to allow molten metal to drain from the interior through the opening. The floor is arranged at an angle to horizontal to slope in a downward direction towards the opening when the container is moved into sealing engagement with the wall of the furnace with the opening aligned with the furnace entrance. Other exemplary embodiments relate to a combination of a movable sweat hearth as described above and a metal melting furnace having a front wall provided with a furnace entrance.
Exemplary embodiments provide a movable sweat hearth for use with a metal melting furnace having a wall provided with a metal-loading entrance. The sweat hearth includes a hearth body movable relative to the furnace into and out of contact with the wall of the furnace at the entrance. The body has exterior walls enclosing a hollow interior except at a furnace-engagable side wall of the hearth body provided with an opening communicating with the interior. The interior has a floor adapted to support a charge of scrap metal, and the opening is positioned relative to the floor to allow molten metal to drain from the interior through the opening. The floor is arranged at an angle to horizontal to slope in a downward direction towards the opening when the container is moved into sealing engagement with the wall of the furnace with the opening aligned with the furnace entrance. Other exemplary embodiments relate to a combination of a movable sweat hearth as described above and a metal melting furnace having a front wall provided with a furnace entrance.
Exemplary embodiments provide a movable sweat hearth for use with a metal melting furnace having a wall provided with a metal-loading entrance. The sweat hearth includes a hearth body movable relative to the furnace into and out of contact with the wall of the furnace at the entrance. The body has exterior walls enclosing a hollow interior except at a furnace-engagable side wall of the hearth body provided with an opening communicating with the interior. The interior has a floor adapted to support a charge of scrap metal, and the opening is positioned relative to the floor to allow molten metal to drain from the interior through the opening. The floor is arranged at an angle to horizontal to slope in a downward direction towards the opening when the container is moved into sealing engagement with the wall of the furnace with the opening aligned with the furnace entrance. Other exemplary embodiments relate to a combination of a movable sweat hearth as described above and a metal melting furnace having a front wall provided with a furnace entrance.
The invention relates to an aluminum architectural sheet product in which a clad layer is applied to at least one side of a core layer. Preferably, the core layer is made of an alloy selected from the AA5XXX series alloys with a magnesium content greater than 3 weight %, and the clad layer (or each clad layer) is made of an alloy selected from alloys AA5005, AA5205, AA5052, AA5252 and AA5005A. The product may be provided with an anodic film on one or both faces and the film(s) may be covered with one or more layers, e.g. of paint.
The invention relates to an aluminium alloy lithographic sheet product having an enhanced eiectrσiytic graining response in which Zn between 0.5 and 2.5wt% is added to an aluminium base alloy, in particular an alloy of the 1 XXX, 3XXX or 5XXX series alloys. The invention also relates to a method of producing a lithographic sheet product.
Exemplary embodiments of the invention provide a side dam for a continuous metal casting apparatus having elongated opposed casting surfaces forming a casting cavity. The side dam has an elongated upstream part and an elongated downstream part that are mutually laterally pivotable, and a smooth metal-contacting side surface extending continuously from an upstream end to a downstream end of the side dam. The surface has regions thereof formed on the upstream part and the downstream part. Mutual pivoting of the upstream part and the downstream part of the side dam enables the regions of the smooth metal-contacting side surface to be moved out of mutual coplanar alignment. The side dams can therefore be used to form either a convergent or divergent casting cavity to assists the casting procedure and to enhance the properties of the cast article.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
Exemplary embodiments of the invention relate to a side dam block for a continuous metal caster apparatus. The block comprises a body of molten metal resistant material having a metal-contacting surface. The metal contacting surface has a plurality of indentations therein, the indentations having openings at the metal-contacting surface dimensioned to prevent penetration of molten metal into the indentations under casting conditions. Due to a smaller area of direct contact between the molten metal and the surfaces of the blocks, the blocks extract less heat from the molten metal than conventional blocks and help to reduce so-called "dog-bone" and "sink" type deformation of the cast article.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
Exemplary embodiments of the invention provide a side dam for a continuous metal casting apparatus having elongated opposed casting surfaces forming a casting cavity. The side dam has an elongated upstream part and an elongated downstream part that are mutually laterally pivotable, and a smooth metal-contacting side surface extending continuously from an upstream end to a downstream end of the side dam. The surface has regions thereof formed on the upstream part and the downstream part. Mutual pivoting of the upstream part and the downstream part of the side dam enables the regions of the smooth metal-contacting side surface to be moved out of mutual coplanar alignment. The side dams can therefore be used to form either a convergent or divergent casting cavity to assists the casting procedure and to enhance the properties of the cast article.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
53.
CONTINUOUS CASTING APPARATUS FOR CASTING STRIP OF VARIABLE WIDTH
Exemplary embodiments of the invention provide a casting apparatus for continuously casting a metal strip article (e.g. a twin-belt metal caster or a twin-block metal caster). The apparatus has a casting cavity defined between a pair of moving elongated opposed casting surfaces, and the casting cavity has an entrance and an exit aligned in a direction of casting. The casting cavity is also provided with a molten metal injector at its entrance, the injector having an internal metal channel including a downstream opening for introducing molten metal into the casting cavity, and a pair of side dams at each lateral side of the casting cavity for confining molten metal from the injector within the cavity. At least one of the side dams comprises an elongated element that is movable laterally relative to the direction of casting during a casting operation. The elongated element extends in the direction of casting from the injector longitudinally between the casting surfaces at least to a downstream position within the casting cavity where the metal adjacent the element is laterally self-supporting.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
54.
SCORE LINE CORROSION PROTECTION FOR CONTAINER END WALLS
The invention relates to an end wall of a metal container having a score therein. The end wall is made of a composite metal sheet made of two or more metal layers, one of the layers being made of an aluminum alloy of high strength (e.g. a high magnesium alloy such as AA5182, AA5042 or AA5082, optionally with increased Mg), and another of the layers being made of an aluminum alloy having a good resistance to stress corrosion cracking (e.g. aluminum alloys AA3004, AA3104, AA5006 or AA5005), wherein at least the bottom of the score is formed by a surface of the alloy of good resistance to stress corrosion cracking.
B65D 17/28 - Réceptacles rigides ou semi-rigides spécialement conçus pour être ouverts par coupage ou perçage, ou en perçant ou en déchirant des éléments ou des parties frangibles le long de lignes ou à partir de points de moindre résistance
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B65D 1/16 - Boîtes de conserves, barils, tonneaux ou fûts caractérisés par la forme de section transversale courbe, p. ex. cylindrique
B65D 1/48 - Renforts en matériaux de substance différente, p. ex. armatures métalliques dans des parois plastiques
B65D 25/00 - Parties constitutives des autres genres ou types de réceptacles rigides ou semi-rigides
C22C 21/06 - Alliages à base d'aluminium avec le magnésium comme second constituant majeur
Exemplary embodiments of the invention relate to a sheet article having opposed first and second surfaces, and having a core layer, a cladding layer at the first surface of the sheet article, and optionally a cladding layer at the second surface of the sheet article. The cladding layer at the first surface is made of an aluminum alloy selected from alloys AA3104, AA3004 and modified versions of alloys AA3104 and AA3004 additionally containing 1.0 to 2.0 wt% Fe and optionally up to 1 wt% Si. The core layer is an aluminum alloy having a yield strength and/or ductility greater than the yield strength and/or ductility of the alloy of the cladding layer at the first surface. The sheet article may be used as can body stock, can end stock or tab stock.
The exemplary embodiments relate to a multilayer aluminum alloy sheet material suitable for fabrication into coolant-conveying tubes, headers and the like used for heat exchangers, and to the tubes and headers, etc., fabricated from the sheet. The multi-layer metal sheet has a core layer of aluminum alloy having first and second sides. The first side has an interlayer made of a Zn-containing aluminum alloy positioned between a Zn-containing outer layer and the core layer. The alloy of the outer layer is more electronegative than the alloy of the interlayer. The alloy of the interlayer is preferably more electronegative than the alloy of the core layer. The first side clad in this way is the side intended for exposure to the coolant, and provides good resistance to corrosion and erosion.
The exemplary embodiments relate to a multilayer aluminum alloy sheet material suitable for fabrication into coolant-conveying tubes, headers and the like used for heat exchangers, and to the tubes and headers, etc., fabricated from the sheet. The multi-layer metal sheet has a core layer of aluminum alloy having first and second sides. The first side has an interlayer made of a Zn-containing aluminum alloy positioned between a Zn-containing outer layer and the core layer. The alloy of the outer layer is more electronegative than the alloy of the interlayer. The alloy of the interlayer is preferably more electronegative than the alloy of the core layer. The first side clad in this way is the side intended for exposure to the coolant, and provides good resistance to corrosion and erosion.
The exemplary embodiments provide a die set comprising a knockout punch and a necking die for necking-in a metal container preform. In an axial direction from front to back of the die, the die has an inwardly tapering in-feed surface, a forming radius, a generally cylindrical land having a die bore diameter, a discharge surface and a relief surface having a diameter larger than the die bore diameter. The land has an axial length of less than 0.1 inch. It is believed that such a length limits the number of metal contacts with the land (rebounds between the knockout punch and the land) to one or two as a metal container preform is necked in the die in conjunction with a knockout punch having a punch diameter that provides a gap between the knockout punch and the land. While the gap may be larger than the topwall thickness of the metal of the preform within the gap, it may alternatively be the same as, or smaller than, the thickness (by up to 10%), to effect re-resizing of the container wall. The exemplary embodiments also provide a method of necking a container preform using such a die.
B21D 22/28 - Emboutissage d'objets cylindriques, en utilisant des matrices successives
B21D 51/38 - Fabrication des dispositifs pour remplir ou vider les boîtes de conserve, bidons, cuvettes, bouteilles ou autres récipientsFabrication des fonds des boîtes de conserveFabrication des dispositifs de fermeture
B65D 1/14 - Boîtes de conserves, barils, tonneaux ou fûts caractérisés par la forme
59.
NECKING DIE WITH REDRAW SURFACE AND METHOD OF DIE NECKING
The invention provides a die set comprising an annular necking die and a knockout punch for necking-in a metal container, and a method of necking. In the method, in at least one necking-in step, the metal container is both reduced in diameter and the container wall is redrawn to minimize circumferential irregularities of wall thickness and/or circumferential rippling of the container wall caused by the reduction of diameter. The die of the die set is provided with a redraw surface to achieve this redrawing effect.
B21D 51/38 - Fabrication des dispositifs pour remplir ou vider les boîtes de conserve, bidons, cuvettes, bouteilles ou autres récipientsFabrication des fonds des boîtes de conserveFabrication des dispositifs de fermeture
B65D 17/00 - Réceptacles rigides ou semi-rigides spécialement conçus pour être ouverts par coupage ou perçage, ou en perçant ou en déchirant des éléments ou des parties frangibles
B65D 8/04 - Réceptacles de section transversale courbe, dont le corps est formé par jonction ou liaison de plusieurs composants rigides, ou sensiblement rigides, constitués en totalité ou principalement en métal, en matière plastique, en bois ou en un matériau de remplacement caractérisés par la structure des parois ou par des liaisons entre parois
The present invention relates to an automotive clad sheet product comprising a core Sayer and at least one clad layer wherein the core comprises an alloy of the following composition in weight %: Mg 0.45-0,8, Si 0.45-0.7, Cu 0.05-0.25, Mn 0.05-0.2, Fe up to 0,35, other elements (or impurities) <0,05 each and <0.15 in total, balance aluminium; and the at least one clad layer comprises an alloy of the following composition in weight %: Mg 0.3-0.7, Si 0,3-0.7, Mn up to 0,15, Fe up to 0.35, other elements (impurities) <0.05 each and <0.15 in total, balance aluminium. The clad automotive sheet product provides excellent hemmabtlity which does not substantially change over time and yet also provides a good age-hardening response after bake hardening.
A method and apparatus is disclosed for sequentially direct chill casting a composite ingot made of metals having similar freezing ranges Poor adhesion between the layers and low reliability of casting are ad-dressed by adjusting the position of secondary cooling (created by applying water streams to the emerging in-got) relative to the upper surfaces of the molten metal pools compared to the conventional positions of first ap-plication of the secondary cooling This can be achieved by moving one or more walls of the mold (when the sec-ondary cooling emanates from the bottom of such walls), or adjusting the height of the molten metal pools within the mold and moving cooled divider walls between the pools The relative temperatures and conditions of the metals at positions where they meet at the metal inter-face may therefore be optimized.
A method and apparatus are disclosed for sequentially direct chill casting a composite ingot made of metals having similar freezing ranges. Poor adhesion between the layers and low reliability of casting are addressed by adjusting the position of secondary cooling (created by applying water streams to the emerging ingot) relative to the upper surfaces of the molten metal pools compared to the conventional positions of first application of the secondary cooling. This can be achieved by moving one or more walls of the mold (when the secondary cooling emanates from the bottom of such walls), or adjusting the height of the molten metal pools within the mold and moving cooled divider walls between the pools. The relative temperatures and conditions of the metals at positions where they meet at the metal interface may therefore be optimized.
B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
B22D 11/049 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond pour la coulée à refroidissement direct, p. ex. coulée dans un champ électromagnétique
B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
63.
SEQUENTIAL CASTING OF METALS HAVING SIMILAR FREEZING RANGES
A method and apparatus is disclosed for sequentially direct chill casting a composite ingot made of metals having similar freezing ranges. Poor adhesion between the layers and low reliability of casting are addressed by adjusting the position of secondary cooling (created by applying water streams to the emerging ingot) relative to the upper surfaces of the molten metal pools compared to the conventional positions of first application of the secondary cooling. This can be achieved by moving one or more walls of the mold (when the secondary cooling emanates from the bottom of such walls), or adjusting the height of the molten metal pools within the mold and moving cooled divider walls between the pools. The relative temperatures and conditions of the metals at positions where they meet at the metal interface may therefore be optimized.
The exemplary embodiments relate to the removal of cooling water used to cool the surface of an ingot as it is formed during casting. The cooling water is removed from the surface by directing jets of water onto the surface at an angle, and with a momentum, that causes the cooling water to be stripped from the surface when contacted with the jets, and to follow a path that prevents the cooling water from again coming into contact with the ingot surface at a position beyond the point of removal. The apparatus for this includes nozzles to create the water jets, and equipment for supplying water under sufficient pressure and rate of flow to the nozzles.
The invention relates to a compound tube, (or multilayer pipe), product comprising inner and outer plastic, or polymer, layers and an intermediate metallic layer where the intermediate metallic layer is a composite aluminium sheet wherein the composite aluminium sheet comprises a core layer and at least one clad layer. The core layer is preferably selected from the alloy compositions of the 5XXX, 6XXX or 8XXX series alloys and the at least one clad layer is selected from the alloy compositions of the 1XXX, 3XXX or 7XXX series alloys.
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B32B 15/06 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de caoutchouc
B32B 15/08 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
B32B 15/20 - Produits stratifiés composés essentiellement de métal comportant de l'aluminium ou du cuivre
F16L 9/147 - Tubes en matériaux composites, c.-à-d. faits de matériaux non complètement couverts dans un seul des groupes précédents comportant uniquement des couches en métal et en matière plastique avec ou sans renforcement
The invention relates to an aluminium lithographic sheet product in which a clad layer is applied to at least one side of a core material, in particular the invention relates to an aluminium lithographic sheet product comprising a composite structure having a core layer and at least one dad layer wherein the core alloy is selected from the 1XXX, 3XXX or 5XXX series alloys and the clad layer is either a 1XXX or 3XXX series alloy.
A method and apparatus is disclosed for casting a composite ingot made of metals that are susceptible to surface oxide formation when molten. The method involves co-casting at least two metal layers from at least two molten metal pools formed within a direct chill casting apparatus. During the casting operation, movement of metal oxide formed on the upper surface of at least one of the pools towards an edge of the pool is restrained by an oxide skimmer positioned close to an edge of the pool above an external surface or metal-metal interface of the ingot. The apparatus provides a DC caster with at least one oxide skimmer that operates in this manner.
A method and apparatus is disclosed for casting a composite ingot made of metals that are susceptible to surface oxide formation when molten. The method involves co-casting at least two metal layers from at least two molten metal pools formed within a direct chill casting apparatus. During the casting operation, movement of metal oxide formed on the upper surface of at least one of the pools towards an edge of the pool is restrained by an oxide skimmer positioned close to an edge of the pool above an external surface or metal-metal interface of the ingot. The apparatus provides a DC caster with at least one oxide skimmer that operates in this manner.
B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
B22D 15/04 - Machines ou appareils pour coulée contre refroidisseurs
B22D 35/04 - Équipement de transport du métal liquide jusqu'aux sillons de lingotage ou aux moules aux moules, p. ex. plaques de base, chenaux de coulée
B22D 9/00 - Machines ou installations pour la coulée des lingots
A method and apparatus is disclosed for casting a composite ingot made of metals that are susceptible to surface oxide formation when molten. The method involves co-casting at least two metal layers from at least two molten metal pools formed within a direct chill casting apparatus. During the casting operation, movement of metal oxide formed on the upper surface of at least one of the pools towards an edge of the pool is restrained by an oxide skimmer positioned close to an edge of the pool above an external surface or metal-metal interface of the ingot. The apparatus provides a DC caster with at least one oxide skimmer that operates in this manner.
B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
B22D 9/00 - Machines ou installations pour la coulée des lingots
B22D 15/04 - Machines ou appareils pour coulée contre refroidisseurs
B22D 35/04 - Équipement de transport du métal liquide jusqu'aux sillons de lingotage ou aux moules aux moules, p. ex. plaques de base, chenaux de coulée
Exemplary embodiments of the invention relate to a container blank of defined shape, a method of feeding the blanks, and apparatus for feeding the blanks. The blanks are shaped or contoured in such a way that mutual adhesion between the blanks of a nested stack of such blanks can be broken, thus facilitating the delivery of individual blanks from the stack. The shaping of the blanks is effective to cause the blanks to separate from each other or to tilt mutually by a small distance when one blank is moved at approximately right angles to the stack. This allows ingress of air between the blanks that eliminates the mutual adhesion.
B65D 1/00 - Réceptacles rigides ou semi-rigides ayant des corps d'une seule pièce formés, p. ex. par coulage d'un matériau en métal, par moulage d'un matériau plastique, par soufflage d'un matériau vitreux, par coulage d'un matériau en céramique, par moulage d'un matériau fibreux cuit ou par étirage d'un matériau en feuille
71.
METHOD OF PRODUCING SHAPING TOOLS FOR USE IN SHAPING CONTAINERS
The invention provides a method of designing shaping tools for metal containers (such as metal bottles) to minimize the formation of visible transition lines or ripples conventionally produced in such procedures as die necking and outward flaring. The method involves carefully measuring differences between an actual shape produced and a design shape resulting from an original set of shaping tools. The tools are then refined in design to take into account metal spring back and the effect of one shaping stage on the results of previous stages. The redesign goes through several iterations to ensure that each change produces an improvement of the formed container. In this way, the formation of transition lines can be minimized because the actual shape of the container more closely resembles the smooth design shape. Dies designed in this way are then used for commercial shaping operations.
B21D 22/28 - Emboutissage d'objets cylindriques, en utilisant des matrices successives
B21C 37/18 - Fabrication de tubes à diamètres variables dans le sens de la longueur de tubes coniques
B21D 19/08 - Mise en forme ou autres traitements des bords, p. ex. des bords des tubes par l'action unique ou successive d'outils presseurs, p. ex. de mors d'étaux
B21D 37/08 - Matrices comportant différentes parties pour différents stades d'une opération
B21D 51/10 - Fabrication d'objets creux caractérisés par la structure des objets d'objets coniques ou cylindriques
B21D 51/38 - Fabrication des dispositifs pour remplir ou vider les boîtes de conserve, bidons, cuvettes, bouteilles ou autres récipientsFabrication des fonds des boîtes de conserveFabrication des dispositifs de fermeture
B21H 7/00 - Fabrication d'articles non prévus dans les groupes , p. ex. outils d'agriculture, fourchettes, couteaux, cuillères
A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat-treatment of such ingots prior to hot working.
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
B22D 11/049 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond pour la coulée à refroidissement direct, p. ex. coulée dans un champ électromagnétique
The invention relates to a clad sheet product comprising a core layer and at least one clad layer wherein the core comprises an alloy of the following composition in weight %: Mg 0.90 - 1.40; Si 0.90 - 1.40; Cu 0.75 - 1.40; Mn <0.40; Cr <0.20; Fe <0.30; others <0.05 each and <0.15 in total; balance aluminium; and the at least one clad layer comprises an alloy of the following composition in weight %: Mg 0.30 - 0.70; Si 0.30 - 0.80; Cu <0.30; Mn <0.30; Fe <0.30; others <0.05 each and <0.15 in total; balance aluminium. Furthermore, the invention relates to a method of producing a clad sheet product comprising a core layer and at least one clad layer wherein the core comprises an alloy of the following composition in weight %: Mg 0.90 - 1.40; Si 0.90 - 1.40; Cu 0.75 - 1.40; Mn <0.40; Cr <0.20; Fe <0.30; others <0.05 each and <0.15 in total; balance aluminium, and the at least one clad layer comprises an alloy of the following composition in weight %: Mg 0.30 - 0.70; Si 0.30 - 0.80; Cu <0.30; Mn <0.30; Fe <0.30; others <0.05 each and <0.15 in total; balance aluminium, comprising the steps of : preparing a composite ingot having one core layer and at least one clad layer; performing a homogenization treatment; hot rolling the homogenized composite ingot to a hot rolled sheet product; cold rolling the hot rolled sheet product to a cold rolled sheet product; performing a solutionizing treatment; and quenching the solutionized cold rolled sheet product, followed by pre-aging and slow cooling to room temperature.
Exemplary embodiments of the invention relate to an apparatus and method for producing untrimmed container bodies from pre-cut metal blanks. The method involves cupping a pre-cut metal blank by positioning the blank against an immovable draw punch comprising an annular body having an inner surface adapted to form a redraw die and an outer surface, and drawing a periphery of the blank over the outer surface of the draw punch with an encircling draw die to form a cup having an open end, a closed end and an interior. The cup is then inverted and redrawn by forcing a redraw punch into the closed end of the cup to draw the closed end through the redraw die until the cup is inverted to form an inverted cup with a closed end supported on the punch. The inverted cup while supported on the redraw punch is passed through one or more ironing rings to lengthen the inverted cup to form an untrimmed container body having a closed end. The closed end of the untrimmed container body is preferably shaped by engaging the closed end of the untrimmed container body with one or more end shaping tools while supported on the redraw punch. The apparatus comprises tools, actuators and a solid support structure adapted to carry out the method.
B21D 22/28 - Emboutissage d'objets cylindriques, en utilisant des matrices successives
B21D 51/26 - Fabrication d'objets creux caractérisés par l'usage de l'objet de boîtes de conserve ou bidonsFermeture des boîtes de conserve ou des bidons de façon définitive
75.
SEQUENTIAL CASTING OF METALS HAVING THE SAME OR SIMILAR CO-EFFICIENTS OF CONTRACTION
A method and apparatus is disclosed for casting metals in a DC mold to form an ingot or product having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle sloping away from the metal for the outer layer in a downward direction. The angle is larger at the center of the divider wall compared to the angle adjacent to each longitudinal end thereof. The apparatus is suitable for co-casting metals having similar coefficients of contraction to minimize problems of adhesion between the layers of a resulting ingot or rolled products produced therefrom.
B22D 15/00 - Coulée utilisant un moule ou un noyau dont une partie importante, pour le procédé, est de conductibilité thermique élevée, p. ex. coulée contre refroidisseursMoules ou accessoires spécialement adaptés à cette technique
B22D 15/04 - Machines ou appareils pour coulée contre refroidisseurs
B22D 27/04 - Action sur la température du métal, p. ex. par chauffage ou refroidissement du moule
76.
Sequential casting of metals having the same or similar co-efficients of contraction
A method and apparatus is disclosed for casting metals in a DC mold to form an ingot or product having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle sloping away from the metal for the outer layer in a downward direction. The angle is larger at the center of the divider wall compared to the angle adjacent to each longitudinal end thereof. The apparatus is suitable for co-casting metals having similar coefficients of contraction to minimize problems of adhesion between the layers of a resulting ingot or rolled products produced therefrom.
A method and apparatus is disclosed for casting metals in a DC mold to form an ingot or product having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle sloping away from the metal for the outer layer in a downward direction. The angle is larger at the center of the divider wall compared to the angle adjacent to each longitudinal end thereof. The apparatus is suitable for co-casting metals having similar coefficients of contraction to minimize problems of adhesion between the layers of a resulting ingot or rolled products produced therefrom.
B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
B22D 15/00 - Coulée utilisant un moule ou un noyau dont une partie importante, pour le procédé, est de conductibilité thermique élevée, p. ex. coulée contre refroidisseursMoules ou accessoires spécialement adaptés à cette technique
B22D 15/04 - Machines ou appareils pour coulée contre refroidisseurs
B22D 27/04 - Action sur la température du métal, p. ex. par chauffage ou refroidissement du moule
An aluminum alloy sheet having excellent press formability and stress corrosion cracking resistance, comprises 3.3 to 3.6 percent by weight of Mg and 0.1 to 0.2 percent by weight of Mn, furthermore, 0.05 to 0.3 percent by weight of Fe and 0.05 to 0.15 percent by weight of Si, and the remainder comprises Al and incidental impurities, wherein the sizes of intermetallic compounds is 5 μm or less, the recrystallized grain size is 15 μm or less in the region at a depth of 10 to 30 μm below the sheet surface, and the surface roughness is Ra 0.2 to 0.7 μm.
C22F 1/047 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages d'alliages avec le magnésium comme second constituant majeur
Apparatus and method of co-casting metal ingots in direct-chill casting apparatus. The apparatus and method employs at least one divider (divider member or divider wall) that separates a casting mold into two or more chambers for receiving molten metal that is combined into a single ingot. The divider may be moved, angled and/or flexed during casting to produce ingots that are designed primarily for rolling into thin plate or sheet. The ingot has at least one outer layer that is thicker adjacent to the side (width) edges than in the center, and/or thicker adjacent to the butt or head regions. This compensates for wiping of the outer layer from the ingot core during rolling. Also, the divider may be outwardly bowed outwardly towards one of the mold walls during the casting run.
The invention relates to apparatus and method for forming (e.g. die necking) open ends of open-ended metal container bodies. Such an apparatus may include a number of movable holders for container bodies that move the container bodies along a path extending through the apparatus (preferably around the periphery of one or more star wheels). A motor advances the holders and container bodies along the path in steps with pauses between each step. Each step advances one or more container bodies (and preferably two or more). One or more groups of work stations positioned adjacent to the path provides tool sets for carrying out a forming operation on one (and preferably two or more) container bodies simultaneously. Individual container bodies, or more preferably groups of two or more, are subjected to one or more forming operations during passage along the path.
B23Q 39/04 - Machines pour le travail des métaux incorporant un grand nombre de sous-ensembles capables chacun de réaliser une opération de travail du métal les sous-ensembles étant disposés pour fonctionner simultanément à différents postes de travail, p. ex. avec une table de travail annulaire se déplaçant par paliers
B23Q 15/22 - Commande ou régulation de la position de l'outil ou de la pièce
81.
METHOD OF AND APPARATUS FOR CONVEYING MOLTEN METALS WHILE PROVIDING HEAT THERETO
The invention relates to a method of and apparatus for providing heat to a molten metal flowing through metal-conveying apparatus. The apparatus includes a molten metal-conveying channel, an enclosure for receiving and circulating combustion gases while preventing entry of the gases into said channel, a heat-conductive body of material separating at least part of the channel from the enclosure; and a combustion device for generating combustion gases and delivering the gases to the enclosure. Heat from the combustion gases is used to heat molten metal held in the channel, while preventing contact between the combustion gases and the molten metal. The body of material may be a trough used to form the channel, a tube for conveying the molten metal, or a tube acting as the enclosure, or the like.
B22D 35/06 - Équipement de chauffage ou de refroidissement
B01J 19/02 - Appareils caractérisés par le fait qu'ils sont construits avec des matériaux choisis pour leurs propriétés de résistance aux agents chimiques
C04B 35/58 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de borures, nitrures ou siliciures
A cooling device including an air source, preferably a fan, that provides air flow and a shroud for directing air flow from the air source at an object, particularly a coil of material, preferably a metal or metal alloy having a temperature greater than the ambient room temperature. The cooling device provides cooling efficiency by directing the air from the air source at an increased velocity to a desirable area or areas on an end surface of the object, thereby increasing heat transfer from the object. The cooling device shroud includes an air directing surface that influences the direction of air flow across the object in a desired pattern. Methods for preparing cooling devices and for cooling objects are also described.
F25D 1/00 - Dispositifs utilisant de l'air ou de l'eau naturellement froids
F25D 17/08 - Dispositions pour la circulation des fluides de refroidissementDispositions pour la circulation de gaz, p. ex. d'air, dans les enceintes refroidies pour la circulation de gaz, p. ex. convection naturelle par circulation d'air forcée en utilisant des conduits
F25D 23/00 - Caractéristiques générales de structure
83.
METHOD OF AND APPARATUS FOR MEASURING THE THICKNESS OF MOVING METAL SHEET ARTICLES
The invention provides a method of and apparatus for measuring the true thickness, as well as angles of orientation, of a strip article, e.g. a moving metal sheet emerging from a rolling apparatus. The thickness and angles are measured by three penetrating radiation beams (e.g. X-rays) that cross at a common point of intersection generally, but not necessarily, within the body of the sheet article. One beam is generally normal to the sheet article and the others are oriented in the longitudinal and transverse directions of the sheet article. The angles between the beams are generally fixed and known. The thicknesses measured by the three beams can be used, along with their respective angles of orientation, to calculate the true thickness of the sheet article as well as the angles of sag or off-flatness in the transverse and longitudinal directions at the point of measurement. By measuring these values at various points on the strip article, a thickness and orientation profile of the strip article may be produced.
G01B 15/02 - Dispositions pour la mesure caractérisées par l'utilisation d'ondes électromagnétiques ou de radiations de particules, p. ex. par l'utilisation de micro-ondes, de rayons X, de rayons gamma ou d'électrons pour mesurer l'épaisseur
B21B 38/02 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer la planéité ou le profil des bandes
B21B 38/04 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer l'épaisseur, la largeur, le diamètre ou d'autres dimensions transversales du produit
G01B 15/08 - Dispositions pour la mesure caractérisées par l'utilisation d'ondes électromagnétiques ou de radiations de particules, p. ex. par l'utilisation de micro-ondes, de rayons X, de rayons gamma ou d'électrons pour mesurer la rugosité ou l'irrégularité des surfaces
The invention provides a method of producing a clad sheet article having superplastic properties, and the resulting clad sheet article. The method involves producing a cladding layer onto at least one rolling face of a core ingot made of a metal having superplastic properties, preferably by co-casting, to form a clad ingot and then rolling said clad ingot to produce a sheet article. The core ingot includes an element that diffuses from an interior of the ingot to a surface at superplastic forming temperatures thereby deteriorating surface properties of the ingot. The cladding layer is provided with an element (dopant) that reacts with the element of the core to reduce the ability of the element to diffuse through the cladding layer.
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
B32B 15/20 - Produits stratifiés composés essentiellement de métal comportant de l'aluminium ou du cuivre
B32B 37/28 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons impliquant l'assemblage de matériaux intermédiaires non plats qui sont aplatis à un stade ultérieur, p. ex. de tubes
85.
BELT CASTING MACHINE HAVING ADJUSTABLE CONTACT LENGTH WITH CAST METAL SLAB
A twin-belt casting machine for casting metal strip. The machine is provided with a casting cavity which includes an upstream fixed casting region, in which the belts are in fixed convergent paths in contact with the cast slab, and an adjacent downstream portion in which the belts are adjustable between alignment with the fixed convergent paths and non-alignment therewith (being less convergent or divergent). When the adjustable portions of the paths are moved outwardly relative to the fixed convergent paths, the belts separate from the cast slab at differing predetermined points within the casting cavity. By adjusting the downstream portion of the casting cavity in this manner, the casting machine can operate at essentially constant throughput for a wide range of alloys while ensuring that the cast slab exiting the caster has a temperature within a predetermined range suitable for further rolling to produce sheet product.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
A twin-belt casting machine for casting metal strip. The machine is provided with a casting cavity which includes an upstream fixed casting region, in which the belts are in fixed convergent paths in contact with the cast slab, and an adjacent downstream portion in which the belts are adjustable between alignment with the fixed convergent paths and non-alignment therewith (being less convergent or divergent). When the adjustable portions of the paths are moved outwardly relative to the fixed convergent paths, the belts separate from the cast slab at differing predetermined points within the casting cavity. By adjusting the downstream portion of the casting cavity in this manner, the casting machine can operate at essentially constant throughput for a wide range of alloys while ensuring that the cast slab exiting the caster has a temperature within a predetermined range suitable for further rolling to produce sheet product.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
87.
Sequential casting of metals having high co-efficients of contraction
A method and apparatus for casting metals in a DC mold to form an ingot or product having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle to the vertical sloping away from the metal for the outer layer in a downward direction. The angle increases at positions on the divider wall spaced from a central section of the wall approaching each longitudinal end thereof. The apparatus is suitable for casting a metal having a high coefficient of contraction as an inner layer or core ingot, e.g. a high-Mg or high-Zn aluminum alloy, or metal combinations having a large difference in their coefficients of contraction.
A twin-belt casting machine for casting metal strip. The machine is provided with a casting cavity which includes an upstream fixed casting region, in which the belts are in fixed convergent paths in contact with the cast slab, and an adjacent downstream portion in which the belts are adjustable between alignment with the fixed convergent paths and non-alignment therewith (being less convergent or divergent). When the adjustable portions of the paths are moved outwardly relative to the fixed convergent paths, the belts separate from the cast slab at differing predetermined points within the casting cavity. By adjusting the downstream portion of the casting cavity in this manner, the casting machine can operate at essentially constant throughput for a wide range of alloys while ensuring that the cast slab exiting the caster has a temperature within a predetermined range suitable for further rolling to produce sheet product.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
A method and apparatus for casting metals in a DC mold to form an ingot having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle to the vertical sloping away from the metal for the outer layer in a downward direction. The angle increases at positions on the divider wall spaced from a central section of the wall approaching each longitudinal end thereof. The apparatus is suitable for casting a metal having a high coefficient of contraction as an inner layer or core ingot.
A method and apparatus for casting metals in a DC mold to form an ingot having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle to the vertical sloping away from the metal for the outer layer in a downward direction. The angle increases at positions on the divider wall spaced from a central section of the wall approaching each longitudinal end thereof. The apparatus is suitable for casting a metal having a high coefficient of contraction as an inner layer or core ingot.
A continuous belt casting apparatus is provided with a casting cavity, and at least one flexible metal belt having an elongated casting surface passing through and at least partially defining the casting cavity. A motor is provided for rotating the metal belt in the longitudinal direction of the casting surface whereby the casting surface passes through the casting cavity in the longitudinal direction. A molten metal supply device delivers molten metal continuously to the casting cavity, so that molten metal supplied to the casting cavity is solidified and removed as a continuous strip ingot from the casting cavity by rotation of the belt. The casting surface is provided with a plurality of grooves oriented in substantially the same direction. The invention also relates to a casting belt for such an apparatus and a method of casting using the apparatus.
B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat-treatment of such ingots prior to hot working.
B22D 11/049 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond pour la coulée à refroidissement direct, p. ex. coulée dans un champ électromagnétique
A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat -treatment of such ingots prior to hot working.
B22D 30/00 - Refroidissement des pièces coulées, non limité à des procédés de coulée couverts par un seul groupe principal
B29C 33/04 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens incorporés de chauffage ou de refroidissement utilisant des liquides, des gaz ou de la vapeur d'eau
A method of continuously or semi-continuously direct chill casting a metal ingot with a microstructure that facilitates further working. The apparatus includes a casting mold having at least one inlet, at least one outlet and at least one mold cavity, at least one cooling jacket for said at least one mold cavity, a supply of coolant liquid arranged to cause the coolant liquid to flow along an exterior surface of an embryonic ingot emerging from said at least one outlet, means spaced at a distance from said at least one outlet for removing said coolant liquid from said exterior surface of said embryonic ingot, apparatus for moving said coolant removing means towards and away from said at least one outlet, thereby enabling said distance to be modified during casting of said ingot, and a temperature sensing device for measuring a surface temperature of the ingot.
A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat -treatment of such ingots prior to hot working.
B22D 30/00 - Refroidissement des pièces coulées, non limité à des procédés de coulée couverts par un seul groupe principal
B22D 7/12 - Organes accessoires de lingotières, p. ex. pour le brassage, pour éviter les éclaboussures
B22D 9/00 - Machines ou installations pour la coulée des lingots
B29C 33/04 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens incorporés de chauffage ou de refroidissement utilisant des liquides, des gaz ou de la vapeur d'eau
A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat -treatment of such ingots prior to hot working.
B22D 15/00 - Coulée utilisant un moule ou un noyau dont une partie importante, pour le procédé, est de conductibilité thermique élevée, p. ex. coulée contre refroidisseursMoules ou accessoires spécialement adaptés à cette technique
B23P 25/00 - Traitement auxiliaire des pièces, avant ou pendant les opérations d'usinage, afin de faciliter l'action de l'outil ou d'obtenir pour les pièces l'état final désiré, p. ex. la réduction des contraintes internes
A method of producing a metal ingot that can be hot-rolled without prior homogenization is provided. The method includes the steps of casting a metal to form an ingot under conditions of temperature and time effective to produce a solidified metal having a non-cored microstructure, wherein said conditions include holding the ingot interior above a transformation temperature of more than 425 °C for a period of at least 10 minutes during said casting of said metal.
A method of treating a surface of a metal foil or sheet to make the surface wettable. The method comprises obtaining a metal foil or sheet having an oil-coated surface to be treated, applying a solution of phosphoric acid in a polar, non-aqueous, water-free solvent evenly to the surface at a rate of application in a range of at least 10 mg/ft2, the phosphoric acid being contained in the solution at a concentration such that the phosphoric acid contacts the surface in an amount of 0.5 to 2.0 mg/ft2; and removing the solvent by either drying the surface or heating the foil or sheet at an elevated temperature above ambient to evaporate the oil from the surface to be treated with the proviso that the elevated temperature does not fall in the range between 130 to 240°C. The resulting foil has a wettable surface and can be used, for example, for coating with a layer of another material (e.g. polymer or adhesive) and achieve high peel strength.
C23C 22/03 - Traitement chimique de surface de matériaux métalliques par réaction de la surface avec un milieu réactif laissant des produits de réaction du matériau de la surface dans le revêtement, p. ex. revêtement par conversion, passivation des métaux au moyen de solutions non aqueuses contenant des composés du phosphore
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
A method of imparting a non-stick coating to a surface of an aluminum foil sheet, and the resulting foil sheet. The method involves coating at least part (preferably at least 40%) of an area of a surface of a metal sheet article (preferably an aluminum foil sheet) with a substantially solvent-free silicone oil at an average coating application rate in a range of 1.5 to 10 mg/ft2 of the coated surface area. The coated sheet article is then preferably coiled. The coated sheet article is then heated in the presence of air or oxygen at a temperature of 250°C or higher for a period of time of at least 10 minutes. The treated surface is both non-stick and food-friendly.
C23C 22/56 - Traitement de l'aluminium ou des alliages à base d'aluminium
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
C23C 22/76 - Application du liquide par pulvérisation
The present invention relates to a method of making an aluminium alloy product having a gauge below 200µm. It also relates to an aluminium alloy product having a gauge below the same value and to containers for food packaging applications made from the aluminium alloy product. The invention is a process of manufacturing an aluminium alloy comprising the following steps: continuous casting an aluminium alloy melt of the following composition, (in weight %): Fe 1.0 - 1.8, Si 0.3 - 0.8, Mn up to 0.25, other elements less than or equal to 0.05 each and less than or equal to 0.15 in total, balance aluminium, cold rolling the cast product without an interanneal step to a gauge below 200µm and final annealing the cold rolled product.
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22F 1/043 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages d'alliages avec le silicium comme second constituant majeur
