Abstract

The invention relates to a process for the manufacture of an aluminum alloy sheet for metal bottles or aerosol cans. The invention also relates to a sheet manufactured by a process such as that described above, together with metal bottles or bottle-cans, together with aerosol cans or aerosol dispensers made from the said sheet.

IPC Classes  ?

• B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
• C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
• B65D 83/38 - Details of the container body
• C22C 21/08 - Alloys based on aluminium with magnesium as the next major constituent with silicon
• C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
• C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
• C22C 21/00 - Alloys based on aluminium
• B65D 1/02 - Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
• B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
• B21B 3/00 - Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences

Abstract

The invention relates to a method for manufacturing a laminated product having a variable thickness and consisting of a heat-treated aluminum alloy, in which a variation in thickness of at least 10% lengthwise, between the thickest portion and the thinnest portion, is achieved by heat-rolling, the resulting laminated product having a variable thickness is solution heat-treated and soaked, and the laminated product, which has a variable thickness and which is thus solution heat-treated and soaked, is stress-relieved by controlled traction with a permanent deformation of at least 1 % in the thickest portion prior to natural or artificial aging. The products obtained according to the invention have a mechanical resistance that is improved by at least 5% in the thinnest portion and an improvement in stiffness of at least 15% in the thickest portion. The products according to the invention are useful in particular for producing lower or upper wing skins for an aircraft because the "buy to fly" ratio and the properties are simultaneously improved.

IPC Classes  ?

• C22C 21/00 - Alloys based on aluminium
• C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Abstract

The invention relates to a vacuum chamber element obtained by machining and surface-treating a sheet, with a thickness at least equal to 10 mm, of aluminium alloy having the composition, as % by weight, Si: 0.4 - 0.7; Mg: 0.4 - 0.7; Ti 0.01 - < 0.15; Fe < 0.25; Cu < 0.04; Mn < 0.4; Cr 0.01 - < 0.1; Zn < 0.04; other elements < 0.05 each and < 0.15 in total, the rest aluminium. The invention also relates to a process for manufacturing a vacuum chamber element, in which, successively, a sheet of aluminium alloy of the 5XXX series or of the 6XXX series, the thickness of which is at least 10 mm, is supplied, said sheet of vacuum chamber element is machined and said element is degreased and/or stripped, anodizing is carried out at a temperature of between 10 and 30°C with a solution comprising 100 to 300 g/l of sulphuric acid, 10 to 30 g/l of oxalic acid and 5 to 30 g/l of at least one polyol, and the product thus anodized is optionally hydrated in deionized water at a temperature of at least 98°C, preferably for a period of at least approximately 1 h. The products according to the invention in particular have an improved property homogeneity and also an advantageous corrosion resistance.

IPC Classes  ?

• C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
• B01J 3/00 - Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matterApparatus therefor
• C25D 11/04 - Anodisation of aluminium or alloys based thereon
• C25D 11/08 - Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
• C25D 11/10 - Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing organic acids
• C22C 21/08 - Alloys based on aluminium with magnesium as the next major constituent with silicon
• C22F 1/05 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
• H01J 37/32 - Gas-filled discharge tubes

Abstract

The invention concerns a method for producing an aluminium alloy foam, consisting essentially of the aluminium alloy, in molten form, infiltrating the interstices of a preform consisting of silicon elastomer elements, by means of a conventional moulding process, typically a low-pressure process, followed by the elimination of the preform broken down into silica powder during the moulding cycle and/or an additional baking cycle.

IPC Classes  ?

• C22C 1/08 - Alloys with open or closed pores

Abstract

The invention relates to an extruded product made of an aluminium-based alloy comprising 4.2% to 4.8% by weight of Cu, 0.9% to 1.1% by weight of Li, 0.15% to 0.25% by weight of Ag, 0.2% to 0.6% by weight of Mg, 0.07% to 0.15% by weight of Zr, 0.2% to 0.6% by weight of Mn, 0.01% to 0.15% by weight of Ti, an amount of Zn of less than 0.2% by weight, an amount of Fe and of Si of less than or equal to 0.1% by weight each, and inevitable impurities at a content of less than or equal to 0.05% by weight each and 0.15% by weight in total. The sections according to the invention are particularly useful as fuselage stringer or stiffener, fuselage frame, wing stiffener, floor beam or section or seat track, especially due to their improved properties compared to those of known products, in particular in terms of energy absorption during an impact; static mechanical strength and corrosion resistance properties, and their low density.

IPC Classes  ?

• C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
• C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium
• C22C 23/00 - Alloys based on magnesium
• B21C 29/00 - Cooling or heating extruded work or parts of the extrusion press

Abstract

The subject of the invention is a direct cooling device for a mould for the semicontinuous vertical casting of slabs for rolling or ingots for extruding (3) that are progressively quenched with a double jet (jets 4 and 5), the first one at substantially 32° and the second substantially 22°, simultaneously, each jet delivering substantially the same flow rate and flow velocity from a single chamber (2) of liquid. Another subject of the invention is a method implementing said device, with or without a graphite insert (1) on the working faces and in combination with various configurations of false bottom.

IPC Classes  ?

• B22D 11/049 - Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting
• B22D 11/20 - Controlling or regulating processes or operations for removing cast stock

Abstract

The invention concerns a process to manufacture a flat-rolled product, notably for the aeronautic industry containing aluminum alloy, in which, notably a flattening and/or stretching is performed with a cumulated deformation of at least 0.5% and less than 3% and a short heat-treatment is performed in which the sheet reaches a temperature between 130° C. and 170° C. for a period of 0.1 to 13 hours. The invention notably makes it possible to simplify the forming process of fuselage skins and to improve the balance between static mechanical strength properties and damage tolerance properties.

IPC Classes  ?

• C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
• C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Abstract

The invention relates to a method for manufacturing a rolled product, in particular for the aeronautical industry, containing an aluminum alloy having a composition of 2.1 to 3.9 wt % of Cu, 0.7 to 2.0 wt % of Li, 0.1 to 1.0 wt % of Mg, 0 to 0.6 wt % of Ag, 0 to 1 wt % of Zn, at most 0.20 wt % of Fe + Si, at least one element selected from Zr, Mn, Cr, Se, Hf and Ti, the quantity of said element, if selected, being 0.5 to 0.18 wt % for Zr, 0.1 to 0.6 wt % for Mn, 0.05 to 0.3 wt % for Cr, 0.02 to 0.2 wt % for Se, 0.05 to 0.5 wt % for Hf, and 0.01 to 0.15 wt % for Ti, the other elements constituting at most 0.05 wt % each and 0.15 wt % total, the remainder being aluminum, said method involving flattening and/or pulling with a total deformation of at least 0.5% and less than 3%, and a short heat treatment in which the sheet metal reaches a temperature of between 130 and 170ºC for 0.1 to 13 hours. The invention makes it possible, in particular, to simplify the process for shaping sheet metal for fuselages, and to improve the trade-off between static mechanical strength and damage tolerance properties.

IPC Classes  ?

• C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
• C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Abstract

The subject of the invention is a composite sheet material made of aluminium alloy for motor vehicle body components, in which a cladding sheet is applied to at least one side of a core, the compositions of the core and of the cladding sheet, in weight percentages, being such as below (See table): other elements < 0.05 each and 0.15 in total, remainder aluminium. Another subject of the invention is the process for manufacturing said composite sheet material by co-rolling.

IPC Classes  ?

• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
• C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
• C22F 1/05 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions

Abstract

The invention relates to a method for the vertical semi-continuous casting of composite billets or plates comprising at least two layers of aluminium alloys, using a separator which is in contact with the solidification front and which provides a seal between the two alloys during casting, said separator being vibrated while it is in contact with the solidification front, such that the separator is not moved by the solid metal. The invention also relates to a device that can be used to carry out said method.

IPC Classes  ?

• B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths

Abstract

The invention relates to an assembly of two brazing sheets the first one of which consists of a 3xxx alloy clad on one surface with a 1xxx alloy, the second one of which consists of an AA3xxx alloy clad on both surfaces thereof with a 4xxx alloy, which are assembled together by brazing so as to form a disrupted channel for the flow of exhaust gases, in particular for a motor vehicle.

IPC Classes  ?

• C22C 21/00 - Alloys based on aluminium
• F28D 1/04 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits
• F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
• F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

Abstract

The invention relates to a welded product made of an aluminum alloy having the composition, in wt %, of Mg: 4.0 - 5.0; Li: 1.0 - 1.6; Zr: 0.05 - 0.15; Ti: 0.01 - 0.15; Fe: 0.02 - 0.2; Si: 0.02 - 0,2; Mn: ≤ 0.5; Cr ≤ 0.5; Ag: ≤ 0.5; Cu ≤ 0.5; Zn ≤ 0.5; Se < 0.01; other elements: < 0.05; wherein the remainder is aluminum and the method for manufacturing same involves, consecutively: producing a molten metal bath so as to produce an aluminum alloy having the composition according to the invention, casting said alloy in crude form, optionally homogenizing the resulting cast product, heat deformation and optional cold deformation, an optional heat treatment at a temperature of between 300 and 420ºC in one or more stages, a solution heat treatment of the resulting deformed product, and tempering, optional cold deformation of the resulting solution heat treated and tempered product, and return to a temperature of less than 150ºC. The products according to the invention have improved toughness and are useful in manufacturing aircraft structural elements, preferably a fuselage skin, a fuselage frame or a rib.

IPC Classes  ?

• C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
• C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent

Abstract

The invention relates to wrought products made of an Al-Cu-Mg aluminium alloy of composition, in % by weight, Cucorr: 2.6 - 3.7; Mgcorr: 1.5 - 2.6; Mn: 0.2 - 0.5; Zr ≤ 0.16; Ti: 0.01 - 015; Cr ≤ 0.25; Si ≤ 0.2; Fe ≤ 0.2; other elements < 0.05 and the remainder aluminium; with Cucorr ≥ 0.9(Mgcorr) + 4.3 and Cucorr ≤ 0.9(Mgcorr) + 5.0; where Cucorr = Cu - 0.74(Mn ‑ 0.2) - 2.28 Fe and Mgcorr = Mg - 1.73(Si - 0.05) for Si ≥ 0.05 and Mgcorr = Mg for Si < 0.05 and their manufacturing process. These alloys are particularly of use for applications in which the products are maintained at temperatures of 100°C to 200°C, typically at around 150°C. Thus, the products according to the invention are of use for fastenings intended to be used in an engine for a motor vehicle, such as screws or bolts or rivets or for manufacturing parts of the nacelle and/or attachment masts of aircraft, aircraft wing leading edges and the fuselage of supersonic aircraft.

IPC Classes  ?

• C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Abstract

The invention relates to a manufacturing process that makes it possible to obtain an unwrought semi-finished product having at mid-thickness a density of micropores having a size greater than 90 µm of less than 50% and preferably of less than 20% of the density of micropores having a size greater than 90 µm obtained by a process according to the prior art. The process according to the invention comprises, in particular, an ultrasound-treatment step of the bath of liquid metal in a furnace and/or in a cell using a submerged device comprising at least one ultrasound emitter. The semi-finished products obtained by the process according to the invention are particularly advantageous for the manufacture, by rolling, of sheets intended for the aeronautical industry for the production of longerons, ribs, lower surfaces and upper surfaces and for the manufacture, by extrusion, of sections intended for the aeronautical industry for the production of stiffeners.

IPC Classes  ?

• C22C 21/00 - Alloys based on aluminium
• C22B 9/02 - Refining by liquating, filtering, centrifuging, distilling or supersonic wave action
• C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
• B22D 1/00 - Treatment of fused masses in the ladle or the supply runners before casting

Abstract

The invention relates to a process for manufacturing rolled products made of an aluminium-based alloy comprising 4.2 to 4.6% by weight of Cu, 0.8 to 1.30% by weight of Li, 0.3 to 0.8% by weight of Mg, 0.05 to 0.18% by weight of Zr, 0.05 to 0.4% by weight of Ag, 0.0 to 0.5% by weight of Mn, at most 0.20% by weight of Fe + Si, less than 0.20% by weight of Zn, at least one element chosen from Cr, Se, Hf and Ti, the amount of said element, if it is chosen, being from 0.05 to 0.3% by weight for Cr and for Se, 0.05 to 0.5% by weight for Hf and 0.01 to 0.15% by weight for Ti, the other elements being at most 0.05% by weight each and 0.15% by weight in total, the remainder being aluminium, comprising the steps of smelting, casting, homogenization, rolling with a temperature greater than 400°C, solution heat treating, quenching, tensioning between 2 and 3.5% and tempering. The invention also relates to the rolled products obtained by this process, which have a favourable compromise of properties between mechanical strength in compression and in tension and toughness. The products according to the invention are especially of use for the manufacture of upper wing skin.

IPC Classes  ?

• C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
• C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
• B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like

Abstract

The present invention relates to an aluminium alloy for the manufacture of thick blocks comprising (in % by weight); Zn: 5.3 - 5.9%, Mg: 0.8 - 1.8%, Cu < 0.2%, Zr: 0.05 - 0.12%, Ti < 0.15%, Mn < 0.1%, Cr < 0.1%, Si < 0.15%, Fe < 0.20%, impurities having an individual content < 0.05% each and < 0.15% in total, the remainder being aluminium. The alloy may be used in a process comprising the steps of: (a) casting a thick block made of alloy according to the invention, (b) solution heat treating said cast block at a temperature from 500 to 560°C for 10 min to 20 hours, (c) cooling said solution heat treated block to a temperature below 100°C, (d) tempering said solution heat treated and cooled block, by heating at 120 to 170°C for 4 to 48 hours. In this process, said block does not undergo, between the casting and the tempering, a step of significant deformation by working. The alloy and the process according to the invention are of use in particular for the manufacture of a mould for injection-moulding plastics.

IPC Classes  ?

• C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
• C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
• C22C 21/00 - Alloys based on aluminium

Abstract

Fiber metal laminate (4)and an aircraft wing (1) having a longitudinal direction, comprising metal layers (5) and fiber reinforced plastic layers (6, 7, 6', 7'; 6'', 7'') in between said metal layers (5),wherein the metal layers (5) and the fiber reinforced plastic layers (6, 7, 6', 7'; 6'', 7'') are bonded together, and wherein the fibers of at least some of the fiber reinforced plastic layers (6, 7, 6', 7'; 6'', 7'') are arranged in a first group in a first plastic layer (6) and in a second group in a second plastic layer (7) whereby the fibers of the first group are at an angle with respect to the fibers of the second group, whereinsaid laminate (4) exhibits fibers of a first type and fibers of a second type, wherein the fibers of the first type being arranged in the said longitudinal direction of the laminate (4) in one or more of its fiber reinforced plastic layers (6', 7'; 6'', 7''), and that it has adjacent fiber reinforced plastic layers (6, 7) at or near a symmetry-plane of the laminate (4) that are provided with the fibers of the second type.

IPC Classes  ?

• B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 5/28 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
• B64C 3/20 - Integral or sandwich constructions
• B64C 3/26 - Construction, shape, or attachment of separate skins, e.g. panels
• B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
• B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
• B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
• B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers

Abstract

The invention relates to an aluminum-based alloy comprising, in % by weight, 2.1 to 2.4% of Cu, 1.3 to 1.6% of Li, 0.1 to 0.51% of Ag, 0.2 to 0.6% of Mg, 0.05 to 0.15% of Zr, 0.1 to 0.5% of Mn, 0.01 to 0.12% of Ti, optionally at least one element chosen from Cr, Se, and Hf, the amount of the element, if it is chosen, being from 0.05 to 0.3% for Cr and for Se, and 0.05 to 0.5% for Hf, an amount of Fe and of Si less than or equal to 0.1% each, and inevitable impurities in a content less than or equal to 0.05% each and 0.15% in total. The alloy makes it possible to produce extruded, rolled and/or forged products that are in particular suitable for the manufacture of aircraft wing lower surface elements.

IPC Classes  ?

• C22C 21/00 - Alloys based on aluminium
• C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
• C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
• B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
• C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium

Abstract

Sheet metal plate (10) for creating flooring, particularly of industrial vehicles, over which trucks are to run, having a plurality of patterns, the maximum height of said reliefs ranging between 0.2 and 1.5 mm, said reliefs having a friction surface which has a mean width of at least 1 mm, in which said reliefs are arranged in a plurality of aligned groups of reliefs all of the same shape, the same orientation, and with their centres of gravity substantially aligned in one and the same given direction (D), the minimum distance, measured in said direction (D), between two adjacent reliefs of one and the same aligned group being less than 6 mm. The direction (D) in which the aligned groups are aligned advantageously coincides with the direction (De) in which the trucks run. A test measuring vibration can be used to characterize the ability of the sheet metal plate to emit noise of low intensity without the need to resort to acoustic pressure measurements on industrial vehicles. For preference, this is a sheet metal plate produced by rolling with a final pass over an engraved cylinder.

IPC Classes  ?

• B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
• B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
• B60R 13/01 - Liners for load platforms or load compartments
• B62D 25/20 - Floors or bottom sub-units

Abstract

The invention relates to a method for manufacturing an aluminum block having a thickness at least equal to 250 mm and intended for manufacturing elements for vacuum chambers. Said method involves the following consecutive steps: semi-continuous casting of an alloy block having a composition such that, in wt%, Si is between 0.5 and 1.5, Mg is between 0.5 and 1.5, Fe < 0.3, Cu < 0.2, Mn < 0.8, Cr < 0.10, Ti < 0.15, each other element is less than 0.05, and a total of 0.15 remains aluminum; solution heat treatment is carried out, at a temperature between 450° and 560° C, directly on the cast block that is possibly made uniform; the resulting solution heat-treated block is quenched with the speed for cooling, between the solution temperature and 200° C, being at least 200° C/h; and tempering is carried out on the thus-quenched and possibly de-tensioned block. The resulting blocks are particularly advantageous in creating vacuum chambers for the manufacture of semiconductor-based integrated electronic circuits, flat display screens, and photovoltaic panels.

IPC Classes  ?

• C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
• C22C 21/08 - Alloys based on aluminium with magnesium as the next major constituent with silicon
• C22F 1/05 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
• B01J 3/00 - Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matterApparatus therefor

Goods & Services

Aluminum and aluminum alloys, lithium and lithium alloys, in the form of sheets, plates and shaped parts, for use in aeronautics and the space industry.

Goods & Services

Common metals and their alloys; metal building materials; aluminium and aluminium alloys; cast and rolled aluminium materials (semi-finished goods); billets, plates, sheet metal and aluminium strips; parts of metal structures for mechanical construction, particularly in aeronautical construction. Treatment of metals; surface treatment of metals; cutting, machining, sawing, polishing, thermal treatment and tempering of metals.

Goods & Services

Common metals and their alloys; aluminium; sheets, strips and sections of aluminium and aluminium alloys for construction and assembly of vehicles, skips, chassis, cisterns, tanks, reinforcement elements. Processing and transformation of metals; surface treatment, cutting and machining of metals.

Goods & Services

Common metals, wrought, semi-wrought metals and their alloys; aluminum alloys supplied in the form of sheet metals, especially for use in industrial manufacture of molds; foundry molds of metal; metal construction materials, non-electrical metallic cables and wires; non-electrical locksmithing articles, hardware of metal; metal pipes; aluminum-based alloys used for producing castings and for manufacturing all types of semi-wrought products; sheet metals, billets and plates of metal especially for use in industrial manufacture of molds; profiled, rolled and cast building materials of metal; metal joinery, metal material for railway tracks; metal chains, horse shoes, nails and screws; safes and safety cashboxes, cashboxes of metal; armor plating, foils of metal for packing purposes, boards, beams, angle sections, lattices, rings, vats, metallic packaging containers, fittings of metal for beds. Material forming machines and machine tools; motors and engines (other than for land vehicles); machine coupling and transmission elements (other than for land vehicles); agricultural instruments. Treatment of materials, sawing, planing, cutting, burnishing by abrasion, metal coating.

Goods & Services

aluminium alloys in the form of sheet metal, destined especially for the industrial manufacturing of moulds; metal molds for casting