A method of forming an article that includes a composite including graphite is disclosed. The article is suitable for containing or processing a molten metal such as aluminum. The method includes forming at least one granulated mixture by mixing at least carbon black, flake graphite, needle coke with at least one resin, the at least one resin has a flow distance, as measured by ISO 8619:2003, from 20 mm to 150 mm. The method further includes shaping the granulated mixture into a shaped body and firing the shaped body.
Certain examples relate to a method for manufacturing a ceramic object derived from a 3D printed ceramic structure. The method includes carbonizing the 3D printed ceramic structure. Such carbonizing of the 3D printed ceramic structure may include introducing a network of carbon bonding into the 3D printed ceramic structure via: impregnating and/or coating the 3D printed ceramic structure with a carbon precursor, or printing the 3D printed ceramic structure using a ceramic printing medium including a carbon precursor. The resultant 3D printed ceramic structure which includes a carbon precursor is pyrolyzed so as to form a network of carbon bonding within/surrounding the 3D printed ceramic structure.
C04B 35/532 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
B28B 1/00 - Producing shaped articles from the material
The present invention relates to a composition for producing a coating on a main body of a mold or core for metal casting that emits formaldehyde when heated, wherein the coating forms a surface of the mold or core that comes into contact with a metal melt in the casting operation, wherein the composition comprises (a) particles of one or more refractories (b) at least one compound according to formula (I), where the total mass of compounds (b) is 0.1% by weight to 10% by weight, based on the total mass of the particles (a) of the refractories, (c) a carrier liquid selected from the group consisting of water, alkanols and mixtures thereof.
B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
4.
A COMPOSITION FOR PRODUCING A COATING ON A MAIN BODY OF A MOLD OR CORE FOR METAL CASTING THAT EMITS FORMALDEHYDE WHEN HEATED
The present invention relates to a composition for producing a coating on a main body of a mold or core for metal casting that emits formaldehyde when heated, wherein the coating forms a surface of the mold or core that comes into contact with a metal melt in the casting operation, wherein the composition comprises (a) particles of one or more refractories (b) at least one ammonium salt [compound (b)], where the total mass of compounds (b) is 0.1% by weight to 10% by weight, based on the total mass of the particles (a) of the refractories, (c) a carrier liquid selected from the group consisting of water, alkanols and mixtures thereof.
B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
A feeder system (1) comprises a main body (2) made of exothermic and / or insulating material and a spout body (3) made of metal A tubular recess (21, 22) having an opening (23) is provided in the main body (2). The spout body (3) comprises an outlet opening (33) and defines an annular surface (34) located opposite the outlet opening (33). At least two distinct retaining projections (35) are connected with a radially outer end of the annular surface (34). An inner diameter (D23) of the opening (23) is adapted to receive the annular surface (34). Each retaining projection (35) comprises a compressible section (351) and a hook section (352) extending at least partially in a direction radially away from the annular surface (34).
A feeder system (1) for use in casting moulds comprises a sleeve (2) and a breaker core (3) One or more retaining elements (21, 31) is/are arranged on the sleeve (2) and/or the breaker core (3) by means of which retaining elements (21, 31) the breaker core (3) supports the sleeve (2). The retaining elements (21, 31) are adapted to interact with the respective other one of the sleeve (2) and the breaker core (3) to which the respective retaining element (21, 31) is not attached in such a way as to make possible displacement of the breaker core (3) inside the sleeve (2). The breaker core (3) is made of insulating material having a scratch hardness higher than a scratch hardness of the sleeve (2). The breaker core (3) is made by core-shooting and the sleeve (2) is made by slurry-forming.
The invention relates to a rotary device for treating molten metal and a rotor for use with the rotary device. The rotary device comprises a hollow shaft and a rotor at one end of the hollow shaft, the rotor comprising: a roof and a base, the roof and base being spaced apart and connected by a plurality of dividers; a central chamber defined between the roof and the base, the dividers extending radially from the periphery of the central chamber; a passage being defined between each adjacent pair of dividers, each passage having an inlet located radially outward of the central chamber and an outlet in an outer peripheral surface of the rotor; and a flow path being defined through the hollow shaft into the central chamber, through the inlets of the passages and out of the outlets. The base comprises either: a plurality of apertures fluidly connected to the central chamber and a radial blade defined between each adjacent pair of apertures; a central aperture and a plurality of radial vanes protruding outwardly from the base, the radial vanes being arranged around the periphery of the central aperture, wherein the radial vanes extend towards the centre of the base and at least partially over the central aperture; or a central aperture and a plurality of radial vanes protruding outwardly from the base, the radial vanes being arranged around the periphery of the central aperture, wherein the base further comprises a plurality of cut-outs arranged between the radial vanes, the cut-outs in the base extending inwardly from the outer periphery of the rotor.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical materials for use in foundries and aluminium
smelters for metallurgical applications and purposes;
chemical products for use in foundry and aluminium smelters
and for foundry purposes; chemical substances and
preparations for use in foundries and aluminium smelters for
metallurgical applications and purposes; chemical products
for use in the metallurgical industry; chemical products for
use in metal casting; chemical products for foundry
purposes; degassing, refining and fluxing agents for the
production of metals; chemical products for use in metal
cleaning; fluxes; fluxes in granular form for use in
foundries and aluminium smelters and metallurgical
applications; cleaning fluxes; chemical additives; chemical
fluxes for the production, casting, treatment, cleaning,
refinement and preparation of metals; chemical fluxes for
the production, treatment, cleaning, refinement and
preparation of metal alloys; fluxes for use in metal
casting, cleaning, drossing and covering in foundries and
aluminium smelters and metallurgical applications; chemical
products for use in degassing metal; chemical products for
use in the removal of deposits from metal.
A metal treatment additive for treating molten iron comprising 10 to 90 wt% of an active agent and 90 to 10 wt% of a carrier. The active agent comprises one or more of barium, bismuth, and zirconium as the primary component, and the additive composition comprises less than 0.5 wt% of magnesium. The additive is suitable for inoculating molten iron during casting processes.
MOULD FOR CASTING MOLTEN METAL COMPRISING A COUPLING MECHANISM FOR A SHROUD, CASTING INSTALLATION FOR CASTING A MOLTEN METAL AND METHOD FOR CASTING A MOLTEN METAL
A mould for casting molten metals is provided that includes a mould/shroud coupling mechanism for a shroud of a casting installation. A funnel is provided that is attached to a hollow shaft, the mould/shroud coupling mechanism includes a seat member for receiving the funnel and holding the shroud and a base member fixed to the upper surface of the mould and coupled to the seat member by at least one compliant element such that the seat member is separated from and movable relative to the base member upon application of a load onto the seat member which deforms the at least one compliant element.
The present invention relates to a channel induction furnace, a refractory enclosure to be used in a channel induction furnace, and a process for renewing a lining in a channel induction furnace. The channel induction furnace and the refractory enclosure are asymmetrical: their front side differs from their rear side. The refractory enclosure comprises one or more tubular sections made of a single piece of refractory material produced outside the channel induction furnace.
ASSEMBLY FOR CASTING MOLTEN METAL COMPRISING A SAND CASTING MOULD, A SHORT-SHROUD, AND A MOULD / SHROUD COUPLING MECHANISM, CASTING INSTALLATION AND METHOD FOR CASTING A MOLTEN METAL PART
The invention refers to a kit-of-parts and an assembly comprising a sand casting mould (2) for casting metal parts, a short-shroud (9) comprising a short-shaft (10), and a mould ! shroud coupling mechanism (14). The mould (2) comprises a bore (7) extending over a bore length (d7) from a bore inlet to the inlet (6i) of a housing (6) in fluid communication with cavities defining the shape of the metal parts. The mould / shroud coupling mechanism (14) is configured for receiving and maintaining the short-shroud (9) in a shroud casting position with the short-shaft inserted in the bore (7) separated from the housing inlet §6i) by a shaft-free distance (d710 > 0), wherein k = d710 / d7 is preferably comprised between 0.2 and 0.8.
A composition for making cores and a process for metal casting, the composition comprising: a particulate refractory material; an inorganic binder comprising at least one alkali metal silicate; a pozzolanic additive; and a lustrous carbon former. The process includes forming a core from the composition and assembling a mould comprising the core and supplying molten metal.
B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
B22D 19/00 - Casting in, on, or around, objects which form part of the product
There is provided a refractory article for use in metal casting and a composition for manufacture thereof, comprising a particulate refractory material, an oxidisable fuel, an oxidant, a sensitizer; a binder, and from 0.5 to 5 wt % CaSO4.
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C04B 35/18 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay rich in aluminium oxide
C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
C04B 35/65 - Reaction sintering of free metal- or free silicon-containing compositions
A rotor (11) for use in the treatment of molten metal. The rotor (11) comprises a roof (12) having a central axis (A) and comprising a plurality of peripheral cut-outs (18). An intermediate plate (13) extends axially from the roof (12) and comprises a plurality of sides having arcuate portions (14). A plurality of blades (15) extend axially from the intermediate plate (13). The rotor is intended for use in casting operations, particularly in the treatment of non-ferrous metals.
A rotary device and methods for treating molten metal, a tubular sleeve for said rotary device and the use of said rotary device in the treatment of molten metal. The rotary device comprises: a tubular sleeve comprising a rotor head at one end, the rotor head comprising a gas outlet for dispersing gas into molten metal; and a hollow shaft extending inside the tubular sleeve such that at least a portion of the hollow shaft is enclosed by the tubular sleeve, wherein the hollow shaft is fluidly connected to the gas outlet of the rotor head, the tubular sleeve is formed from a refractory material that is resistant to corrosion and thermal shock, and the hollow shaft is formed from a material comprising graphite. A first method comprises: applying a layer of synthetic slag material onto an exposed surface of the molten metal; and stirring the molten metal using a rotary device comprising a rotor head, such that the molten metal flows past the layer of synthetic slag material. A second method comprises: applying a metal treatment agent to molten metal; stirring the molten metal using a rotary device comprising a rotor head; and discharging gas into the molten metal through the rotor head.
A method for treating molten iron includes applying a metal treatment agent to molten iron; and stirring the molten iron using a rotary device comprising a rotor head. The rotary device can be resistant to corrosion and thermal shock, and thereby permit efficient application of metal treatment agents.
B22C 9/10 - CoresManufacture or installation of cores
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
B22C 9/02 - Sand moulds or like moulds for shaped castings
B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
B22D 17/00 - Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
A composition for making a core for use in a moulding or metal casting process. The composition comprises a particulate refractory material; and a binder composition. The binder composition comprises at least one alkali metal silicate, potassium carbonate; and at least one pozzolanic additive. The cores formed from the composition have high strength and are water-dispersible.
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22C 9/02 - Sand moulds or like moulds for shaped castings
B22C 9/10 - CoresManufacture or installation of cores
B22D 17/00 - Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Machine tools; metal processing machines; metalworking
machines; stirring machines; machines for stirring molten
metal; machines for purifying metals; metal purification
machines and devices; rotary devices; rotary tools; rotary
devices for treating molten metal; rotary devices for
treating molten metal with gas; rotary devices for use in
the metallurgical industry; machinery and apparatus for use
in metallurgical applications; gas dispersal devices;
devices for dispersing gas into molten metal; machines
incorporating a rotary device for discharging and dispersing
gases or other chemical substances or additives into molten
metal; machines and devices for the treatment of molten
metal; machines and devices for the purification of molten
metal; machines and devices for the removal of impurities
from molten metal; machines and devices for incorporating
metal treatment additives into molten metal; degassing
machines and devices; machines and devices for the degassing
of molten metal; degassing rotors; degassing rotary devices;
degassing rotors for metals; degassing rotors for use in the
metallurgical industry; machines and devices for the
preparation of molten metal; pumps for gases; pumps adapted
for chemical substances; rotary machines for stirring molten
metal; motors for rotary devices; accessories, parts and
fittings for all the aforesaid goods. Treatment of metallurgical materials; metal treatment;
metal-treatment and metallurgical processes; metallurgical
processing; metalworking; metal refining services; refining
metals; purifying metals; metal purification services;
purification of molten metals; treating metals with gases;
treating metals by discharging of gases through them;
treating metals with additives; treating metals to remove
impurities; degassing of metals; degassing of molten metal;
degassing, being a metallurgical treatment; refining of
metals with additives; information, advice and consultancy
relating to all the aforementioned services.
21.
AN ARTICLE COMPRISING A COMPOSITE COMPRISING GRAPHITE
Method of forming an article comprising a composite comprising graphite is disclosed. The article is suitable for containing or processing a molten metal such as aluminum. The method comprises forming at least one granulated mixture by mixing at least carbon black, flake graphite, needle coke with at least one resin, wherein the at least one resin has a flow distance, as measured by ISO 8619:2003, from 20 mm to 150 mm. The method further comprises shaping the granulated mixture into a shaped body and firing the shaped body.
C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
C04B 35/532 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B 35/76 - Fibres, filaments, whiskers, platelets, or the like
C04B 35/80 - Fibres, filaments, whiskers, platelets, or the like
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Metal refinement and purification machine tools; metal processing machines; metalworking machines; stirring machines; machines for stirring molten metal; machines for purifying metals; metal purification machines; Refractory rotary devices for treatment of molten metal; Rotary tools, namely rotors for treatment of molten metal; rotary devices for treating molten metal; rotary devices for treating molten metal with gas; rotary devices for use in the metallurgical industry in the nature of rotary devices for treating molten metal; machinery and apparatus for use in metallurgical applications in the nature of rotary pumps, rotors, paddles, rotor blades, stirrers, turbines, gas agitators, additive agitators, metal purification machines, metal refinement machines, gas dispersion machines, additive dispersion machines; gas dispersal devices, namely, agitators for gas dispersion; agitators for dispersing gas into molten metal; machines incorporating a rotary device for discharging and dispersing gases or other chemical substances or additives into molten metal; machines and devices for the treatment of molten metal; machines and devices for the purification of molten metal; machines and devices for the removal of impurities from molten metal; machines and devices for incorporating metal treatment additives into molten metal; degassing machines and devices; machines and devices for the degassing of molten metal; degassing rotors; degassing rotary devices; degassing rotors for metals; degassing rotors for use in the metallurgical industry; machines and devices for the preparation of molten metal; rotary pumps for gases; rotary pumps adapted for chemical substances; rotary machines for stirring molten metal; motors for rotary devices for treating molten metal with gas; parts and fittings for all the aforesaid goods Treatment of metallurgical materials; metal treatment; metal-treatment and treatment of materials in the nature of metal by means of metallurgical processing; metallurgical processing in the nature of purification of molten metals; metalworking; metal refining services, namely, refining of iron and steel; refining metals; purifying metals; metal purification services; purification of molten metals; treating metals with gases; treating metals by discharging of gases through them; treating metals with additives; treating metals to remove impurities; degassing of metals; degassing of molten metal; degassing, being a metallurgical treatment; refining of metals with additives; information, advice and consultancy relating to all the aforementioned services
The invention relates to a rotary device for treating molten metal and a rotor for use with the rotary device. The rotary device comprises a hollow shaft and a rotor at one end of the hollow shaft, the rotor comprising: a roof and a base, the roof and base being spaced apart and connected by a plurality of dividers; a central chamber defined between the roof and the base, the dividers extending radially from the periphery of the central chamber; a passage being defined between each adjacent pair of dividers, each passage having an inlet located radially outward of the central chamber and an outlet in an outer peripheral surface of the rotor; and a flow path being defined through the hollow shaft into the central chamber, through the inlets of the passages and out of the outlets. The base comprises either: a plurality of apertures fluidly connected to the central chamber and a radial blade defined between each adjacent pair of apertures; a central aperture and a plurality of radial vanes protruding outwardly from the base, the radial vanes being arranged around the periphery of the central aperture, wherein the radial vanes extend towards the centre of the base and at least partially over the central aperture; or a central aperture and a plurality of radial vanes protruding outwardly from the base, the radial vanes being arranged around the periphery of the central aperture, wherein the base further comprises a plurality of cut-outs arranged between the radial vanes, the cut-outs in the base extending inwardly from the outer periphery of the rotor.
B01F 23/233 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
B01F 27/1111 - Centrifugal stirrers, i.e. stirrers with radial outletsStirrers of the turbine type, e.g. with means to guide the flow with a flat disc or with a disc-like element equipped with blades, e.g. Rushton turbine
C22B 9/05 - Refining by treating with gases, e.g. gas flushing
MOULD FOR CASTING MOLTEN METAL COMPRISING A COUPLING MECHANISM FOR A SHROUD, CASTING INSTALLATION FOR CASTING A MOLTEN METAL AND METHOD FOR CASTING A MOLTEN METAL
The invention refers to a mould (2) for casting molten metals comprising a mould / shroud coupling mechanism (14) for a shroud (9) of a casting installation (1) comprising a funnel (11) attached to a hollow shaft (10), the mould / shroud coupling mechanism comprising a seat member (15) for receiving the funnel (11) and holding the shroud (9) and a base member (16) fixed to the upper surface (8) of the mould and coupled to the seat member (15) by at least one compliant element (17) such that the seat member (15) is separated from and movable relative to the base member (16) upon application of a load onto the seat member (15) which deforms the at least one compliant element.
A composition for making cores and a process for metal casting, the composition comprising: a particulate refractory material; an inorganic binder comprising at least one alkali metal silicate; a pozzolanic additive; and a lustrous carbon former. The process includes forming a core from the composition and assembling a mould comprising the core, and supplying molten metal.
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
A refractory filter suitable for filtering molten metal, such as steel, and a method and powdered composition for producing the filter. The filter comprises refractory material, the refractory material comprising: 60-90 wt % alumina; 8-30 wt % zirconia; and 3-20 wt % magnesia. The powdered composition comprises: 60-90 wt % alumina; 8-30 wt % zirconia; and 3-20 wt % magnesia, wherein the powdered composition comprises less than 12.5 wt % reactive alumina, calcined alumina or a mixture thereof, and wherein the remainder of the alumina is tabular alumina. The method comprises: providing a powdered composition in accordance with the invention; forming a filter precursor from the powdered composition and a liquid component; and firing the filter precursor to form a refractory filter.
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
B01J 20/08 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising aluminium oxide or hydroxideSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising bauxite
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical compositions and products for use in the
metallurgical industry; chemical compositions and products
for use in the metallurgical industry, namely, binders for
foundry sand moulds and cores.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemical compositions and products for use in the metallurgical industry *, namely binders, coatings, powder additives, silica, silica equivalents and substitutes, moulds and cores * ; chemical compositions and products for use in the metallurgical industry, namely, binders for foundry sand moulds and cores
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Chemical compositions and products for use in the metallurgical industry, namely binders, coatings for protecting and optimising the functioning of moulds, mandrels, and cores, powder additives composed of synthetic and/or natural materials for the production of cores and mandrels, silica sand, silica, namely sand and sand equivalents and substitutes, and mixtures containing a particulate refractory material and a binder containing hydrophilic polymers for making a core or mould for use in a metal casting process or in fibre composite moulding; chemical compositions and products for use in the metallurgical industry, namely, binders for foundry sand moulds and cores.
A rotary device and methods for treating molten metal, a tubular sleeve for said rotary device and the use of said rotary device in the treatment of molten metal. The rotary device comprises: a tubular sleeve comprising a rotor head at one end, the rotor head comprising a gas outlet for dispersing gas into molten metal; and a hollow shaft extending inside the tubular sleeve such that at least a portion of the hollow shaft is enclosed by the tubular sleeve, wherein the hollow shaft is fluidly connected to the gas outlet of the rotor head, the tubular sleeve is formed from a refractory material that is resistant to corrosion and thermal shock, and the hollow shaft is formed from a material comprising graphite. A first method comprises: applying a layer of synthetic slag material onto an exposed surface of the molten metal; and stirring the molten metal using a rotary device comprising a rotor head, such that the molten metal flows past the layer of synthetic slag material. A second method comprises: applying a metal treatment agent to molten metal; stirring the molten metal using a rotary device comprising a rotor head; and discharging gas into the molten metal through the rotor head.
A method for treating molten iron comprising applying a metal treatment agent to molten iron; and stirring the molten iron using a rotary device comprising a rotor head. The rotary device can be resistant to corrosion and thermal shock, and thereby permit efficient application of metal treatment agents.
A composition for making a core for use in a moulding or casting process, a core comprising said composition, and a mould for producing an article by high pressure die casting or semi-solid casting. The composition comprises a particulate refractory material, a binder composition comprising at least one hydrophilic polymer, and one or more of i) at least one pozzolanic additive, and ii) at least one surfactant. The mould comprises a core for defining an internal cavity of the article and the core comprises a solidified core composition. The solidified core composition comprises a particulate refractory material and a binder composition, degrades in water such that a cylinder of the solidified core composition having a maximum height of 80 mm and a maximum diameter of 50 mm disintegrates in no more than 10 minutes when immersed in water at a temperature of 20 °C and stirred at a speed of 60 rpm, and has a flexural strength of at least 400 N/cm2. The invention also resides in a method for producing an article by high pressure die casting or semi-solid casting.
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
B22C 1/26 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of carbohydratesCompositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of distillation residues therefrom
B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22C 9/02 - Sand moulds or like moulds for shaped castings
B22C 9/10 - CoresManufacture or installation of cores
B22C 1/08 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for decreasing shrinkage of the mould, e.g. for investment casting
B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds
B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
B33Y 80/00 - Products made by additive manufacturing
34.
COMPOSITION, CORE AND MOULD FOR CASTING AND MOULDING PROCESSES
A composition for making a core for use in a moulding or casting process, a core comprising said composition, and a mould for producing an article by high pressure die casting or semi-solid casting. The composition comprises a particulate refractory material, a binder composition comprising at least one hydrophilic polymer, comprising at least one polysaccharide or polysaccharide derivative; and at least one pozzolanic additive. The mould comprises a core for defining an internal cavity of the article and the core comprises a solidified core composition. The solidified core composition comprises a particulate refractory material and a binder composition, degrades in water such that a cylinder of the solidified core composition having a maximum height of 80 mm and a maximum diameter of 50 mm disintegrates in no more than 10 minutes when immersed in water at a temperature of 20 °C and stirred at a speed of 60 rpm, and has a flexural strength of at least 300 N/cm2. The invention also resides in a method for producing an article by high pressure die casting or semi-solid casting.
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
B22C 1/16 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents
B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
B22C 1/22 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of resins or rosins
B22C 1/26 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of carbohydratesCompositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of organic agents of distillation residues therefrom
B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
B22C 9/02 - Sand moulds or like moulds for shaped castings
B22C 9/10 - CoresManufacture or installation of cores
B22C 1/08 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for decreasing shrinkage of the mould, e.g. for investment casting
B22C 9/12 - Treating moulds or cores, e.g. drying, hardening
B22C 1/00 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds
B22D 29/00 - Removing castings from moulds, not restricted to casting processes covered by a single main groupRemoving coresHandling ingots
B33Y 80/00 - Products made by additive manufacturing
The present invention relates to a feeder system for use in metal casting operations utilising casting moulds and to a feeder sleeve for use in the feeder system. There is provided a feeder system for metal casting, the feeder system comprising a feeder sleeve mounted on a breaker core, the feeder sleeve having a first end and an opposite second end, a longitudinal axis extending between the first and second ends, and a continuous sidewall extending generally around the longitudinal axis between the first and second ends, the sidewall defining a cavity for receiving molten metal during casting, and the breaker core defining an open bore therethrough for connecting the cavity to the casting, wherein the first end of the feeder sleeve is mounted on the breaker core, and the feeder sleeve comprises at least one protrusion extending from an exterior surface of the sidewall at the second end of the feeder sleeve.
The present invention relates to a feeder system for use in metal casting operations utilising casting moulds, and to feeder sleeves and breaker cores for use in the feeder system. There is provided a feeder system for metal casting, the feeder system comprising a feeder sleeve mounted on a breaker core, the feeder sleeve having a first end and an opposite second end, a longitudinal axis extending between the first and second ends, and a continuous sidewall extending generally around the longitudinal axis between the first and second ends, the sidewall defining a cavity for receiving molten metal during casting, and the breaker core defining an open bore therethrough for connecting the cavity to the casting, wherein the first end of the feeder sleeve comprises a base portion which is mounted on the breaker core, and the second end of the feeder sleeve comprises a planar roof portion and a curved or chamfered portion extending around the periphery of the roof portion, for connecting the sidewall and the roof portion.
A refractory filter suitable for filtering molten metal, such as steel, and a method and powdered composition for producing said filter. The filter comprises refractory material, said refractory material comprising: 60-90 wt% alumina; 8-30 wt% zirconia; and 3-20 wt% magnesia. The powdered composition comprises: 60-90 wt% alumina; 8-30 wt% zirconia; and 3-20 wt% magnesia, wherein the powdered composition comprises less than 12.5 wt% reactive alumina, calcined alumina ora mixture thereof, and wherein the remainder of the alumina is tabularalumina. The method comprises: providing a powdered composition in accordance with the invention; forming a filter precursor from the powdered composition and a liquid component; and firing the filter precursor to form a refractory filter.
A feeder sleeve for use in casting molten metal, and a kit for assembling the feeder sleeve,is described. The kit includes a feeder sleeve neck, a first continuous sidewall and a second continuous sidewall. The second continuous sidewall is sized to be received on a mounting surface provided on the feeder sleeve neck, andthe first continuous sidewall is sized to be received within the second continuous sidewall.The kit enables the construction of modular feeder sleeves which can be tailored in size and shape according to the desired application.
Certain examples of the present invention relate to a method for manufacturing a ceramic object derived from a 3D printed ceramic structure. The method comprises: carbonising the 3D printed ceramic structure. Such carbonising of the 3D printed ceramic structure may comprise introducing a network of carbon bonding into the 3D printed ceramic structure via: impregnating and/or coating the 3D printed ceramic structure with a carbon precursor, or printing the 3D printed ceramic structure using a ceramic printing medium comprising a carbon precursor. The resultant 3D printed ceramic structure which comprises a carbon precursor is pyrolysed so as to form a network of carbon bonding within/surrounding the 3D printed ceramic structure.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
B33Y 80/00 - Products made by additive manufacturing
A feeder system for metal casting comprising a feeder sleeve mounted on a tubular body. The feeder sleeve has a first end and a second end and a longitudinal axis extending generally between said first and second ends. The feeder sleeve comprises a continuous sidewall that extends generally around the longitudinal axis that defines a cavity for receiving liquid metal during casting and the sidewall has a base at the first end of the feeder sleeve. The tubular body defines an open bore therethrough for connecting the cavity to the casting in use. The feeder sleeve comprises at least one cut-out that extends into the sidewall from the base to a first depth and the tubular body projects into the cut-out to a second depth, the tubular body having at least one abrading region in contact with a surface of the feeder sleeve within the cut-out. The second depth is equal to or less than the first depth so that upon application of a force in use the abrading region abrades the surface of the feeder sleeve with which it is in contact such that the tubular body is pushed towards the second end. The invention also resides in a feeder sleeve for use in the system and a process for preparing a casting mould employing the system.
Provided is an apparatus for use in a process for casting molten metal. The apparatus comprises a base, a roof and a continuous sidewall therebetween. The base, the roof and the sidewall define a chamber comprising a central inlet cavity, an inlet opening, which feeds into the inlet cavity, a plurality of outlet openings, and a plurality of filters for filtering molten metal. The filters are arranged within flow paths between the inlet opening and the outlet openings. Each outlet opening is located within a closed outlet cavity defined by a pair of filters and a portion of the sidewall. The filters extend inwardly from the sidewall and from the base to the roof. Adjacent outlet cavities are separated from each other by inlet channels extending between the inlet cavity and the sidewall.
B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
B22D 43/00 - Mechanical cleaning, e.g. skimming of molten metals
Provided is a system for casting molten metals. The system includes a mould comprising a casting cavity having an inlet, and a bore between an upper surface of the mould and the inlet. The system further includes a shroud comprising a funnel and a hollow shaft, wherein the funnel is located outside of the mould, adjacent the upper surface, and the hollow shaft is received within the bore and is moveable therein. A lifting mechanism is located on the upper surface of the mould, the lifting mechanism being operable to lift the funnel of the shroud away from the upper surface for bringing the shroud into engagement with a ladle nozzle. Also provided is a method for casting molten metals using the system.
Provided is a system for casting molten metals. The system includes a mould comprising a casting cavity having an inlet, and a bore between an upper surface of the mould and the inlet. The system further includes a shroud comprising a funnel and a hollow shaft, wherein the funnel is located outside of the mould, adjacent the upper surface, and the hollow shaft is received within the bore and is moveable therein. A lifting mechanism is located on the upper surface of the mould, the lifting mechanism being operable to lift the funnel of the shroud away from the upper surface for bringing the shroud into engagement with a ladle nozzle. Also provided is a method for casting molten metals using the system.
09 - Scientific and electric apparatus and instruments
Goods & Services
Software; testing and quality control devices; testing
apparatus for diagnostic purposes [other than medical];
computer hardware; devices for metallurgical analysis; data
processing software; data collection apparatus; data
transmission apparatus; data loggers and recorders;
real-time data processing apparatus; devices for measuring
cooling curves in metals; measuring instruments and
apparatus; monitoring instruments and apparatus; measuring,
detecting and monitoring instruments, indicators and
controllers; thermometers not for medical purposes;
apparatus and instruments for checking, monitoring and
measuring temperature; apparatus and instruments for
checking, monitoring and measuring properties of metals;
thermal analysis apparatus, systems and instruments;
apparatus for assessing the need for adding further
materials during the metal casting process; apparatus and
instruments for the testing of physical properties of
materials in metal casting; touchscreen monitors; computer
touchscreens; visual display screens; industrial software;
data processing software; software for use in quality
control systems; software for taking measurements; software
for use in testing, checking and monitoring of properties of
metals during the casting process; software for thermal
analysis; electronic reports; electronic publications;
electronic databases; parts, fittings and accessories for
all the aforesaid goods.
A vertically parted casting system comprises a first mould half and a second mould half, the first and second mould halves meeting at a vertical parting line and together defining a casting cavity and a feeder cavity. An exothermic feeder unit is located in the feeder cavity, the feeder unit comprising an inlet, a chamber and an outlet which is in fluid communication with the casting cavity, wherein the outlet is separate from the inlet. The system defines a flow path for molten metal from the inlet of the feeder unit to the casting cavity, via the chamber and the outlet of the feeder unit.
B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
B22C 11/10 - Moulding machines for making moulds or cores, characterised by the relative arrangement of their parts with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
A feeder system for metal casting comprising a feeder sleeve mounted on a tubular body.
The tubular body has a first end and an opposite second end and a compressible portion therebetween so that upon application of a force in use, the distance between the first and second ends is reduced.
The feeder sleeve has a longitudinal axis and comprises a continuous sidewall extending generally around the longitudinal axis that defines a cavity for receiving liquid metal during casting, the sidewall having a base adjacent the second end of the tubular body. The tubular body defines an open bore therethrough for connecting the cavity to the casting.
The feeder sleeve has at least one cut-out that extends into the sidewall from the base and the second end of the tubular body projects into the cut-out to a fixed depth.
The cut-out can be a groove which is separate from the cavity.
The invention also resides in a process employing the feeder system.
A feeder system for metal casting comprising a feeder sleeve mounted on a tubular body. The feeder sleeve has a first end and a second end and a longitudinal axis extending generally between said first and second ends. The feeder sleeve comprises a continuous sidewall that extends generally around the longitudinal axis that defines a cavity for receiving liquid metal during casting and the sidewall has a base at the first end of the feeder sleeve. The tubular body defines an open bore therethrough for connecting the cavity to the casting in use. The feeder sleeve comprises at least one cut-out that extends into the sidewall from the base to a first depth and the tubular body projects into the cut-out to a second depth, the tubular body having at least one abrading region in contact with a surface of the feeder sleeve within the cut-out. The second depth is equal to or less than the first depth so that upon application of a force in use the abrading region abrades the surface of the feeder sleeve with which it is in contact such that the tubular body is pushed towards the second end. The invention also resides in a feeder sleeve for use in the system and a process for preparing a casting mold employing the system.
Certain examples of the present invention relate to a method for manufacturing a ceramic object derived from a 3D printed ceramic structure. The method comprises: carbonising the3Dprinted ceramic structure. Such carbonising of the 3D printed ceramic structure may comprise introducing a network of carbon bonding into the 3D printed ceramic structure via: impregnating and/or coating the 3D printed ceramic structure with a carbon precursor, or printing the 3D printed ceramic structure using a ceramic printing medium comprising a carbon precursor. The resultant 3D printed ceramic structure which comprises a carbon precursor is pyrolysed so as to form a network of carbon bonding within/surrounding the 3D printed ceramic structure.
C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The present invention relates to a feeder system for metal casting. The feeder system comprises a feeder sleeve mounted on a tubular body. The feeder sleeve has a longitudinal axis and comprises a continuous sidewall that defines a cavity for receiving liquid metal during casting. The sidewall extends generally around the longitudinal axis and has a base adjacent the tubular body. The tubular body defines an open bore therethrough for connecting the cavity to the casting. A groove extends into the sidewall from the base to a first depth and the tubular body projects into the groove to a second depth and is held in position by retaining means. The second depth being less than the first depth so that upon application of a force in use the retaining means are overcome and the tubular body is pushed further into the groove.
A feeder system for metal casting comprising a feeder sleeve mounted on a tubular body. The tubular body has a first end and an opposite second end and a compressible portion therebetween so that upon application of a force in use, the distance between the first and second ends is reduced. The feeder sleeve has a longitudinal axis and comprises a continuous sidewall extending generally around the longitudinal axis that defines a cavity for receiving liquid metal during casting, the sidewall having a base adjacent the second end of the tubular body. The tubular body defines an open bore therethrough for connecting the cavity to the casting. The feeder sleeve has at least one cut-out that extends into the sidewall from the base and the second end of the tubular body projects into the cut-out to a fixed depth. The cut-out can be a groove which is separate from the cavity. The invention also resides in a feeder sleeve for use in the system and a process employing the feeder system.
A feeder system for metal casting comprising a feeder sleeve mounted on a tubular body. The feeder sleeve has a first end and a second end and a longitudinal axis extending generally between said first and second ends. The feeder sleeve comprises a continuous sidewall that extends generally around the longitudinal axis that defines a cavity for receiving liquid metal during casting and the sidewall has a base at the first end of the feeder sleeve. The tubular body defines an open bore therethrough for connecting the cavity to the casting in use. The feeder sleeve comprises at least one cut-out that extends into the sidewall from the base to a first depth and the tubular body projects into the cut-out to a second depth, the tubular body having at least one abrading region in contact with a surface of the feeder sleeve within the cut-out. The second depth is equal to or less than the first depth so that upon application of a force in use the abrading region abrades the surface of the feeder sleeve with which it is in contact such that the tubular body is pushed towards the second end. The invention also resides in a feeder sleeve for use in the system and a process for preparing a casting mould employing the system.
A feeder system for metal casting comprising a feeder sleeve mounted on a tubular body. The tubular body has a first end and an opposite second end and a compressible portion therebetween so that upon application of a force in use, the distance between the first and second ends is reduced. The feeder sleeve has a longitudinal axis and comprises a continuous sidewall extending generally around the longitudinal axis that defines a cavity for receiving liquid metal during casting, the sidewall having a base adjacent the second end of the tubular body. The tubular body defines an open bore therethrough for connecting the cavity to the casting. The feeder sleeve has at least one cut-out that extends into the sidewall from the base and the second end of the tubular body projects into the cut-out to a fixed depth. The cut-out can be a groove which is separate from the cavity. The invention also resides in a feeder sleeve for use in the system and a process employing the feeder system.
The present invention relates to a feeder system for metal casting. The feeder system comprises a feeder sleeve mounted on a tubular body. The feeder sleeve has a longitudinal axis and comprises a continuous sidewall that defines a cavity for receiving liquid metal during casting. The sidewall extends generally around the longitudinal axis and has a base adjacent the tubular body. The tubular body defines an open bore therethrough for connecting the cavity to the casting. A groove extends into the sidewall from the base to a first depth and the tubular body projects into the groove to a second depth and is held in position by retaining means. The second depth being less than the first depth so that upon application of a force in use the retaining means are overcome and the tubular body is pushed further into the groove.
The invention provides a neck-down feeder of unitary construction for use in metal casting. The feeder comprises a body portion integrally formed at a first end thereof with a tapered base portion for mounting on a mold pattern. The body portion and the base portion are defined by a continuous sidewall having one or more regions of weakness arranged such that the feeder is breakable in use whereby at least a part of the base portion detaches from the body portion and is received therein.
A method for the production of closed edge filters suitable for filtering molten metal and filters made by such a method. The method comprises: providing a reticulated foam substrate having at least one first surface for forming a side face of the filter and two opposed second surfaces for forming the through-flow faces of the filter; applying a liquid comprising an organic coating component to the first surface; solidifying the organic coating component to form a filter precursor having a volatilizable coating on the first surface; impregnating the filter precursor with a slurry comprising particles of a refractory material, a binder and a liquid carrier; and drying and firing the impregnated filter precursor to form the filter having a closed edge.
C22B 9/02 - Refining by liquating, filtering, centrifuging, distilling or supersonic wave action
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
C04B 35/524 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances
C04B 35/565 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide
C04B 35/626 - Preparing or treating the powders individually or as batches
C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone
An elongate collapsible feeder element for use in metal casting and a feeder system with attached feeder element and feeder sleeve. The feeder element has an A end and an opposite B end measured along the height, and a C end and an opposite D end measured along the length. The A end is for mounting on a mold pattern or swing plate and the opposite B end is for receiving a feeder sleeve. A bore is between the A and B ends defined by a sidewall having a stepped collapsible portion. The feeder element is compressible in use to reduce the distance between the A and B ends. The bore is offset from the centre of the feeder element along the length towards the C end and a second sidewall region is non-planar, contiguous with a third sidewall region and located between the bore axis and the D end.
An elongate collapsible feeder element (20; 40) for use in metal casting and a feeder system comprising the feeder element and a feeder sleeve secured thereto. The feeder element (20; 40) has a length, a width and a height and comprises an A end and an opposite B end measured along the height, and a C end and an opposite D end measured along the length, said A end for mounting on a mould pattern or swing plate and said opposite B end for receiving a feeder sleeve; and a bore between the A and B ends defined by a sidewall comprising a stepped collapsible portion. The feeder element is compressible in use whereby to reduce the distance between the A and B ends. The sidewall has a first sidewall region (24:52) defining the B end of the feeder element which serves as a mounting surface for a feeder sleeve in use, and a second sidewall region (38; 50) contiguous with the first sidewall region (24;52). The stepped collapsible portion comprises a series of third sidewall regions (32a,b,c,d; 44a,b) in the form of concentric rings of decreasing diameter interconnected and integrally formed with a series of fourth sidewall regions (34a,b,c;d; 46a,b) in the form of concentric annuli of decreasing diameter. The bore has an axis that is offset from the centre of the feeder element along the length towards the C end and said second sidewall region (38;50) is non-planar, contiguous with a third sidewall region and located between the bore axis and the D end.
The invention provides a neck-down feeder of unitary construction for use in metal casting. The feeder comprises a body portion integrally formed at a first end thereof with a tapered base portion for mounting on a mould pattern. The body portion and the base portion are defined by a continuous sidewall having one or more regions of weakness arranged such that the feeder is breakable in use whereby at least a part of the base portion detaches from the body portion and is received therein.
A foundry coating composition for molds and cores, a process for preparing coated foundry molds and cores, and coated molds and cores obtainable by the process. The foundry coating composition comprises a liquid carrier; a binder; and a particulate refractory filler. The particulate refractory filler comprises a first (relatively coarse) fraction having a particle size of d>38 μm and a second (relatively fine) fraction having a particle size of d<38 μm. No more than 10% of the total particulate refractory filler has a particle size of 38 μm38 μm) and an absorbed coating (comprising particles of d<38 μm).
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
42 - Scientific, technological and industrial services, research and design
Goods & Services
Metals and their alloys for use in the metallurgical industry Machinery and apparatus for use in metallurgical applications, namely, metal refining machines, converters and ladles for metal treatment and machines for the manufacture of iron and non-ferrous alloys; metalworking machine tools, namely, metal treatment ladles Engineering technological consultation, information and advisory services relating to the treatment, processing and casting of metals and their alloys
The present invention relates to a feeder element for use in metal casting. The feeder element comprises a first end for mounting on a mould pattern or swing plate, an opposite second end comprising a mounting plate for mounting on a feeder sleeve and a bore between the first and second ends defined by a sidewall. The feeder element is compressible in use whereby to reduce the distance between the first and second ends. The bore has an axis that is offset from the centre of the mounting plate and an integrally formed rim extends from a periphery of said mounting plate. The feeder element of the invention finds particular utility in high pressure vertically parted sand moulding systems.
Feeder element for use in metal casting, having a first end for mounting on a mould pattern or swing plate, an opposite second end including a mounting plate for mounting on a feeder sleeve, and a bore between the first and second ends defined by a sidewall. The feeder element is compressible whereby to reduce the distance between the first and second ends. The bore has an axis that is offset from the centre of the mounting plate, and an integrally formed rim extends from a periphery of the mounting plate.
Method for the production of a closed edge refractory foam filter, by providing a reticulated foam substrate having at least one first surface for forming a side face of the filter and two opposed second surfaces for forming the through-flow faces of the filter, applying a liquid including an organic coating component to the first surface, solidifying the organic coating component to form a filter precursor having a continuous volatilizable coating on the first surface, and impregnating the filter precursor with a slurry containing particles of a refractory material, a binder and a liquid carrier. The impregnated filter precursor is dried and fired to form the filter having a closed edge.
C22B 9/02 - Refining by liquating, filtering, centrifuging, distilling or supersonic wave action
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
C04B 35/524 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
C04B 35/626 - Preparing or treating the powders individually or as batches
C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances
C04B 35/565 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide
C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone
A method for the production of closed edge filters suitable for filtering molten metal and filters made by such a method. The method comprises: providing a reticulated foam substrate having at least one first surface for forming a side face of the filter and two opposed second surfaces for forming the through-flow faces of the filter; applying a liquid comprising an organic coating component to the first surface; solidifying the organic coating component to form a filter precursor having a volatilisable coating on the first surface; impregnating the filter precursor with a slurry comprising particles of a refractory material, a binder and a liquid carrier; and drying and firing the impregnated filter precursor to form the filter having a closed edge.
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
C04B 35/524 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
C04B 35/573 - Fine ceramics obtained by reaction sintering
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof
C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances
A foundry coating composition for moulds and cores, a process for preparing coated foundry moulds and cores, and coated moulds and cores obtainable by the process. The foundry coating composition comprises a liquid carrier; a binder; and a particulate refractory filler. The particulate refractory filler comprises a first (relatively coarse) fraction having a particle size of d>38μm and a second (relatively fine) fraction having a particle size of d<38μm. No more than 10 % of the total particulate refractory filler has a particle size of 38μm38μm) and an absorbed coating (comprising particles of d<38μm).
Composition for releasing sodium or strontium or both into molten aluminum or aluminum-based alloy. The composition is formed by fusing a mixture containing at least two salts, at least one of the salts having sodium as a cation and/or at least one of the salts having strontium as a cation, at least one of the salts having carbonate as an anion and at least one of the salts having a halide as an anion. The composition may be employed as a modifying flux for altering the microstructure of aluminum and aluminum alloy.
A mould for casting metal which allows solid impurities to be removed from the molten metal.
The mould (50) has a cavity therein, said cavity having a casting portion and contiguous therewith a running system upstream of the casting portion, said running system comprising an upstream inlet portion (58), a downstream outlet portion (60) and a swirl chamber (54) disposed between the inlet and outlet portions (58,60), wherein a filter (62) is provided at an interface between the swirl chamber (54) and the outlet portion (60).
The application also relates to a method for preparing the mould, a pattern for preparing the mould, a housing for use in the mould and a method for casting employing the mould.
Process for producing ductile iron by treating liquid iron with an initializer which is a ferrosilicon alloy comprising an effective amount of barium sufficient to inactivate the oxygen activity of the liquid iron. This is followed at a predetermined time thereafter by treating the liquid iron with a magnesium containing nodularizer, followed by treating the liquid iron with a eutectic graphite nucleation-inducing inoculant, and casting the iron.
A treatment ladle comprising a ladle shell containing a generally tubular refractory ladle liner, said ladle being pivotable between a horizontal position and a vertical position, said ladle liner having a first end and a second end with a continuous sidewall therebetween, an interior space being defined between said first and second ends and the continuous sidewall, said ladle liner additionally comprising a pocket for holding a treatment agent, said pocket being located adjacent the first end and in fluid communication with the interior space and located closer to the top than the bottom of the interior space when the ladle is in its horizontal position and closer to the bottom than the top of the interior space when the ladle is in its vertical position, and a spout for receiving and pouring molten metal located closer to the top than the bottom of the interior space when the ladle is in its horizontal and vertical positions, wherein in the horizontal position, a lower volume of the interior space defined below a plane midway between the top and bottom of the interior space and between the first end and a vertical plane intermediate the first and second ends is greater than an upper volume of the interior space defined above the midway plane and between the first end and said vertical plane. The treatment ladle is designed for the treatment of molten metal with vaporisable additives, in particular in the preparation of ductile iron. The invention also relates to a method of treating molten metal employing the ladle.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
42 - Scientific, technological and industrial services, research and design
Goods & Services
Metals and their alloys for use in the metallurgical
industry. Machinery and apparatus for use in metallurgical
applications; metal treatment ladles. Technological consultation, information and advisory
services relating to the treatment, processing and casting
of metals and their alloys.
A mould for casting metal which allows solid impurities to be removed from the molten metal. The mould (50) has a cavity therein, said cavity having a casting portion and contiguous therewith a running system upstream of the casting portion, said running system comprising an upstream inlet portion (58), a downstream outlet portion (60) and a swirl chamber (54) disposed between the inlet and outlet portions (58, 60), wherein a filter (62) is provided at an interface between the swirl chamber (54) and the outlet portion (60). The application also relates to a method for preparing the mould, a pattern for preparing the mould, a housing for use in the mould and a method for casting employing the mould.
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
Crucibles for the melting and holding of non ferrous metals, all of the aforesaid goods not for use in the field of manufacture or shaping of glass. Goods made of refractory materials, including clay-bonded graphite and carbon-bonded silicon carbide, for use in the holding, treatment, transfer or casting of molten metals, all the aforesaid goods excluding gunning material used for the maintenance of furnaces and not for use in the field of manufacture or shaping of glass.
09 - Scientific and electric apparatus and instruments
19 - Non-metallic building materials
Goods & Services
Crucibles for the melting and holding of non ferrous metals. Goods made of refractory materials, including clay-bonded graphite and carbon-bonded silicon carbide, for use in the holding, treatment, transfer or casting of molten metals.
The invention relates to an impact pad (20), for use in a T-shaped tundish (10), the pad (20) comprising a base (21) having an impact surface and an outer side wall (22) extending upwardly therefrom and defining an interior space having an upper opening (24) for receiving a stream of molten metal, the interior space is divided into two regions (25a, 25b) by a separating wall (26) provided with at least one passageway (27) for the molten metal stream. This pad is characterized in that the separating wall (26) is at least three times higher than the outer side wall (22) and is inclined with respect to the vertical. This impact pads increases the homogeneity of the molten steel cast from the different outlets of the T-shaped tundish and provides equal or relatively similar residence times of the molten steel discharged through the different outlets of the tundish. This impact pad also permits a fast transition of the steel quality at ladle change while retaining the advantages of conventional impact pads (low level of slag emulsification).
Rotary device for treating molten metal has a hollow shaft with a rotor having a roof and a base spaced apart and connected by a plurality of dividers. A passage extends between each adjacent pair of dividers and the roof and the base. A flow path extends through the shaft into inlets of the passages and out of outlets. A chamber in which mixing of the molten metal and gas can take place is located radially inwardly of the inlets, has an opening in the base of the rotor and is in the flowpath between the shaft and the inlets. Upon rotation of the device, molten metal is drawn into the chamber through the rotor base where it is mixed with gas passing into the chamber from the shaft. The metal/gas dispersion is pumped into the passages through the inlets before discharge from the rotor through the outlets.
Continuous casting installations, casting apparatus; heat
resistant articles for use in metal casting and metal
filtration; refractory machinery, articles and equipment
used in handling, filtration and flow control of molten
metals and other molten materials comprising ingates, molten
metal filters, ceramic filters, filter prints and chambers. Non-metallic refractory articles; non-metallic refractory
materials; non-metallic refractory shapes; non-metallic
articles of refractory materials for filtration of molten
metal; ceramic filters, filter prints, chambers; ingates and
outlets all used in moulds in metal casting process; bonded
refractory mixes and refractory shaped articles used in
moulds in metal casting process; moulding patterns for
filters; mortars; cement; pre-cast shapes.
A portable measuring tool for determining the quality of molten metal, the tool having a body comprising a filling portion for submersion in the molten metal in use, the filling portion comprising a filter to allow ingress of molten metal into the filling portion after at least partial submersion of the filling portion in molten metal, the tool further comprising a measuring device to measure molten metal characteristics in the filling portion, wherein the body is buoyant in the molten metal and a datum is provide on the tool for use by the measuring device in determining a molten metal characteristic in the filling portion, thereby to enable an indication of metal quality to be determined.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
11 - Environmental control apparatus
19 - Non-metallic building materials
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Non-metallic refractory articles namely refractory shaped articles containing refractory filters for use in the casting of molten metals; non-metallic refractory shapes; non-metallic articles of refractory materials for filtration of molten metal namely moulds and filters; ceramic filters for use in refractory moulds used in the casting of metals, filter prints for use in refractory moulds used in the casting of metals, chambers for use in refractory moulds used in the casting of metals; ingates and outlets all used in moulds in metal casting process; bonded refractory mixes and refractory shaped articles used in moulds in metal casting process; moulding patterns for filters; refractory mortars; cement; pre-cast shapes; continuous casting installations, casting apparatus namely an arrangement of moulds and patterns for use in metal casting; heat resistant articles for use in metal casting and metal filtration namely moulds, filters, filter holders, vessels and holloware; refractory machinery, articles and equipment used in handling, filtration and flow control of molten metals and other molten materials comprising ingates, molten metal filters, ceramic filters, filter prints and chambers. (1) Design of processes for the treatment, filtering and/or casting of molten metal; design and consultancy relating to foundry applications and metal casting; technical consultation, information and advice relating to filtration, refining, casting, processing and treatment of molten metal.
A composition for releasing sodium or strontium or both into molten aluminium or aluminium-based alloy. The composition is formed by fusing a mixture comprising at least two salts, at least one of the salts having sodium as a cation and/or at least one of the salts having strontium as a cation, at f least one of the salts having carbonate as an anion and at least one of the salts having a halide as an anion. The composition may be employed as a modifying flux for altering the microstructure of aluminium and aluminium alloy.
An impact pad (20), formed from a refractory material capable of withstanding contact with molten metal, comprises a base (12) serving in use as an impact surface for molten metal, and a sidewall (14) extending generally upwardly therefrom. The sidewall (14) terminates at an upper surface (16) which is above the base (12) in use such that the base (12) and sidewall (14) define a receptacle for receiving molten metal. The sidewall (14) contains therein at least one channel (22), the at least one channel (22) having first and second ends (24, 26); the first end (24) being relatively closer to the base (12) at its intersection with the sidewall (14) than the second end (26). The at least one channel (22) being open ended at the second end (26) or tapering such that the at least one channel (22) has zero depth at its second end (26). The invention also relates to a tundish including an (15) impact pad (20) as described above.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Continuous casting installations, casting apparatus; heat resistant articles for use in metal casting and metal filtration; refractory machinery, articles and equipment used in handling, filtration and flow control of molten metals and other molten materials comprising ingates, molten metal filters, ceramic filters, filter prints and chambers. Non-metallic refractory articles; non-metallic refractory materials; non-metallic refractory shapes; non-metallic articles of refractory materials for filtration of molten metal; ceramic filters, filter prints, chambers; ingates and outlets all used in moulds in metal casting process; bonded refractory mixes and refractory shaped articles used in moulds in metal casting process; moulding patterns for filters; mortars; cement; pre-cast shapes. Design of processes for the treatment, filtering and/or casting of molten metal; design and consultancy relating to foundry applications and metal casting; technical consultation, information and advice relating to filtration, refining, casting, processing and treatment of molten metal.
The invention relates to a rotary device for dispersing a gas in a molten metal. The device comprises a hollow shaft at one end of which is attached a rotor. The rotor has a roof and a base which are spaced apart and connected by a plurality of vanes. A compartment is defined between each adjacent pair of vanes and the roof and the base, and each compartment has an inlet and first and second outlets. A flow path is defined through the shaft into the inlets of the compartments and out of the first and second outlets. Each first outlet is disposed radially outwardly of the respective inlet and arranged to disperse gas laterally of the rotor in use, and each second outlet is disposed in the roof of the rotor and arranged to disperse gas upwardly from the rotor in use.
A rotary device for treating molten metal, said device comprising a hollow shaft (30) at one end of which is a rotor (40), said rotor (40) having :- a roof (42) and a base (44), said roof (42) and base (44) being spaced apart and connected by a plurality of dividers (50); a passage (52) being defined between each adjacent pair of dividers (50) and the roof (42) and the base (44), each passage (52) having an inlet (54) in an inner surface of the rotor (40) and an outlet (56) in a peripheral surface of the rotor (40), each outlet (56) having a greater cross-sectional area than the respective inlet (54) and being disposed radially outward therefrom; a flow path being defined through the shaft (30) into the inlets (54) of the passages (52) and out of the outlets (56); and a chamber (48) in which mixing of the molten metal and gas can take place; wherein a plurality of first cut-outs (58a) are provided in the roof (42) and a plurality of second cut outs (58b) are provided in the base (44), each of the first and second cut outs (58a, 58b) being contiguous with one of the passages (52). The invention also resides in the rotor (40) per se, a metal treatment unit (170) for degassing and/or for addition of metal treatment substances comprising the rotary device of the invention and a method of treating molten metal using the device.
The invention relates to a mixing chamber (10) for use in a metal transfer vessel (for example, a tundish used in steel manufacture or a holding furnace used in aluminium manufacture). The mixing chamber comprises a base with a first series of wall components (14,16,18,20) defining a first mixing zone (22) and a second series of wall components (28, 30). A second mixing zone (56,58) is defined between at least one of the second series of wall components (28,30) and at least one of the first series of wall components (14,16,18,20). A continuous flow path is provided from the exterior of the mixing chamber to the first mixing zone, from the first mixing zone to the second mixing zone, and from the second mixing zone to the exterior of the mixing chamber. The region of the flow path between the first mixing zone and the second mixing zone being defined by a first cut-out (42) in at least one of the first wall components (28,30) and the region of the flow path between the second mixing zone (56,58) and the exterior of the mixing chamber being defined by a second cut-out (64,66) in at least one of the second wall components. The first cut-out (42) is spaced from the base and the first and second cut-outs are mutually spaced along the flow path within the second mixing zone such that in use the general directions of flow within the second mixing zone and between the first and second mixing zones are different.
B22D 11/108 - Feeding additives, powders, or the like
B22D 11/103 - Distributing the molten metal, e.g. using runners, floats, distributors
B22D 41/00 - Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
F27D 3/14 - Charging or discharging liquid or molten material
F27B 3/04 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-hearth typeHearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-chamber typeCombinations of hearth-type furnaces
B22D 11/118 - Refining the metal by circulating the metal under, over or around weirs
Refractory articles for use in the metallurgical industry, namely, ceramic shapes for use in refractory furnaces, refractory blocks not of metal, refractory cones not of metal, refractory molds not of metal, refractory mortars, refractory filters not of metal, refractory bricks not of metal, refractory boards not of metal, refractory sheets not of metal, refractory slabs not of metal, refractory castable mixes not of metal, refractory gaskets not of metal, and refractory shapes not of metal
