This invention discloses a non-heat treatable die-cast aluminum-silicon (AlSi) alloy with high toughness and its preparation method. By controlling the Mn/Fe ratio to a specific value, the adverse effects of Fe in the alloy can be effectively suppressed. In addition, a certain proportion of rare earth elements are introduced into the alloy to effectively refine the Si and form high-temperature phases with elements such as Al and Cu, therefore improving the deformation resistance of the alloy when applied to one-piece die-cast large-scale structural parts. When taking specimens from the casting after die casting for testing, the specimens have the following properties: tensile strength 290 Mpa, yield strength 140 Mpa, and elongation 13%. The alloy also has excellent die-cast molding performance, and the energy used is clean, which meets low-carbon emission standards.

Novel aluminum alloys are provided for use in an impact extrusion manufacturing process to create shaped containers and other articles of manufacture. In one embodiment blends of recycled scrap aluminum are used in conjunction with relatively pure aluminum to create novel compositions which may be formed and shaped in an environmentally friendly process. Other embodiments include methods for manufacturing a slug material comprising recycled aluminum for use in the impact extraction process.

The present invention relates to an aluminium casting alloy having (in % by weight) Cu: 6.0-8.0%, Mn: 0.3-0.055%, Zr: 0.18-0.25%, Si: 3.0-7.0%, Ti: 0.05-0.2%. Sr: up to 0.03%, V: up to 0.04%, Fe: up to 0.25%, remainder aluminium and unavoidable impurities, and a casting for a combustion engine. The aluminium casting alloy according to the invention has high mechanical properties after a longer operating duration at high temperatures and at the same time can be cast without any problems. Furthermore, the casting according to the invention has optimised mechanical properties during operation at high temperatures and at the same time can be produced in an operationally reliable manner in terms of casting technology.

New heat treatable aluminum alloys having magnesium and zinc are disclosed. The new aluminum alloys generally contain 3.0-6.0 wt. % Mg, 2.5-5.0 wt. % Zn, where (wt. % Mg)/(wt. % Zn) is from 0.60 to 2.40.

A heat-dissipating component, and a method for manufacturing the same, the component provided with a composited portion including a plate-shaped molded body containing silicon carbide, and hole-formation portions formed in a peripheral edge portion of the composited portion; through-holes being formed in the hole formation sections; the hole-formation portions containing inorganic fibers; the molded body and the inorganic fibers being impregnated with an aluminum-containing metal; and the hole-formation portions forming a part of the outer peripheral surface of the heat-dissipating component.

A hermetically sealed disc drive comprising at least one aluminum alloy housing component manufactured with a thermally directed die casting press subassembly is disclosed. In one embodiment, the thermally directed die casting press subassembly comprises a thermally directed funnel gate that is skewed to sample molten material from an off-center portion of the shot sleeve. Disc drive housing components can be manufactured by injecting an aluminum alloy slurry from the shot sleeve through the thermally directed funnel gate and the injection nozzle into the die cavity. The aluminum alloy slurry may be a thixotropic slurry comprising a uniform primary aluminum particle size in the range of approximately 50 to 80 microns. The primary aluminum particles of cast products produced according to the methodology of the present disclosure, with the aforementioned particle size distribution, are free of encapsulated eutectic at the micron scale.

The invention relates to a method for the production of a mechanical part, comprising the following successive steps: casting of a billet of aluminium alloy with a composition (in weight %) of 0.4-3.0 Si; 0.6-2.0 Mg; 0.20-1.0 Cu; 0.15-1.8 Fe; Mn<0.5; Ni<1; Ti<0.15; Cr<0.35; Bi<0.8; Pb<0.4; Zr<0.04; other elements <0.05 each and <0.15 total, the remainder being aluminium; homogenisation of the billet; extrusion of the billet in order to obtain an extruded product; quenching while at extrusion heat; optional cold-deformation and/or straightening, typically by means of pulling and/or drawing, and/or curing of the extruded product; tempering; optional cold-deformation of the extruded product, typically by drawing; machining of the resulting extruded product in order to obtain a turned mechanical part; optional shaping of the resulting mechanical part; anodising of the resulting mechanical part at a temperature of between 15 and 40 C with a solution comprising between 100 and 250 g/l sulphuric acid and between 10 and 30 g/l oxalic acid and between 5 and 30 g/l of at least one polyol. The anodised turned mechanical parts obtained using the method of the invention have, in particular, advantageous roughness and excellent corrosion resistance and can be used, in particular, as brake pistons or gearbox elements.

A method for producing an aluminum alloy foam wherein an aluminum alloy, in molten form, infiltrates the interstices of a preform of silicon elastomer elements, by means of a conventional molding process, typically a low-pressure process, followed by the elimination of the preform broken down into silica powder during the molding cycle and/or an additional baking cycle.

A swash plate includes 34.5 to 43.0 wt % of copper (Cu) and 0.5 to 2.8 wt % of silicon (Si), with a remainder of aluminum (Al) and other inevitable impurities.

The invention provides magnesium alloys for high temperature applications that combine excellent castability with superior corrosion resistance, and with good creep resistance, ductility, impact strength, and thermal conductivity. The alloys contain mainly Al, La, Ce, and Mn, and are particularly useful for high-pressure die casting process.