Abstract: An aluminum alloy casting material for heat conducting is provided, wherein the thermal conductivity is improved of an aluminum alloy casting material whereof the castability is improved by the addition of silicon where said invention is characterized by being an aluminum alloy casting material with excellent thermal conductivity, comprising 5-10.0% by mass of silicon, 0.1-0.5% by mass of magnesium and the remainder comprising aluminum and inevitable impurities, and whereon aging treatment has been performed.

Abstract: An aluminum alloy casting material for heat conducting is provided, wherein the thermal conductivity is improved of an aluminum alloy casting material whereof the castability is improved by the addition of silicon where said invention is characterized by being an aluminum alloy casting material with excellent thermal conductivity, comprising 5-10.0% by mass of silicon, 0.1-0.5% by mass of magnesium and the remainder comprising aluminum and inevitable impurities, and whereon aging treatment has been performed.

Abstract: An aluminum alloy casting material for heat conduction obtained by adding Si to an aluminum alloy casting material with enhanced castability thereby realize enhancement of thermal conductivity. There is provided an aluminum alloy casting material excelling in heat conduction. characterized in that it comprises 5 to 10.0 mass % of Si, 0.1 to 0.5 mass % of Mg and the balance of Al and unavoidable impurities, the aluminum alloy casting material having undergone an aging treatment. Further, there is provided a cast aluminum alloy casting material that while having castability and mechanical strength equivalent to or higher than those of conventional cast aluminum alloys, is also enhanced in heat conduction; and provided a process for producing the cast aluminum alloy. In particular, there are provided a cast aluminum alloy and process for producing the same, wherein Si is contained in an amount of 6.0 to 8.0 mass %, the elements other than Si and Al each in simple form in an amount of ?0.

Abstract: The present invention discloses an aluminum alloy being excellent in wear resistance, containing, in mass %, 12.0 to 13.7% of Si, 2.0 to 5.0% of Cu, 0.1 to 1.0% of Mg, 0.8 to 1.3% of Mn, 0.10 to 0.5% of Cr, 0.05 to 0.20% of Ti, 0.5 to 1.3% of Fe, 0.003 to 0.02% of P, and has a Ca content controlled to less than 0.005 mass %, the balance being Al and inevitable impurities; and an aluminum alloy sliding member excellent in wear resistance, which has in mass %, 12.0 to 14.0% of Si, 2.0 to 5.0% of Cu, 0.1 to 1.0% of Mg, 0.8 to 1.3% of Mn, 0.10 to 0.5% of Cr, 0.05 to 0.20% of Ti, 0.5 to 1.3% of Fe, 0.003 to 0.02% of P, and has a Ca content controlled to less than 0.005 mass %, the balance being Al and inevitable impurities, and contains primary crystals of Si having a grain diameter of 20 ?m or more in an amount of 20 pieces/mm2 or less. The alloy may contain one or two of 0.0001 to 0.01 mass % of B, and 0.3 to 3.0 mass % of Ni.

Abstract: The present invention discloses an aluminum alloy being excellent in wear resistance, containing, in mass %, 12.0 to 13.7% of Si, 2.0 to 5.0% of Cu, 0.1 to 1.0% of Mg, 0.8 to 1.3% of Mn, 0.10 to 0.5% of Cr, 0.05 to 0.20% of Ti, 0.5 to 1.3% of Fe, 0.003 to 0.02% of P, and has a Ca content controlled to less than 0.005 mass %, the balance being Al and inevitable impurities; and an aluminum alloy sliding member excellent in wear resistance, which has in mass %, 12.0 to 14.0% of Si, 2.0 to 5.0% of Cu, 0.1 to 1.0% of Mg, 0.8 to 1.3% of Mn, 0.10 to 0.5% of Cr, 0.05 to 0.20% of Ti, 0.5 to 1.3% of Fe, 0.003 to 0.02% of P, and has a Ca content controlled to less than 0.005 mass %, the balance being Al and inevitable impurities, and contains primary crystals of Si having a grain diameter of 20 ?m or more in an amount of 20 pieces/mm2 or less. The alloy may contain one or two of 0.0001 to 0.01 mass % of B, and 0.3 to 3.0 mass % of Ni.

Abstract: An aluminum alloy for die casting, contains, in terms of mass percentage: Si in the range of 1.0˜3.5 %; Mg in the range of 2.5˜4.5 %; Mn in the range of 0.3˜1.5%; Fe in the range equal to or less than 0.15%; Ti in the range of equal to or less than 0.20%; and the balance of aluminum and inevitable impurities. A die cast product having good strength and elongation in a high strain rate region is produced from the aluminum alloy without the need for solution heat treatment.

Abstract: An aluminum alloy for a die casting, used as the material of parts of an automotive vehicle. The aluminum alloy consists essentially of Si in an amount ranging from 10 to 12% by weight, Mg in an amount ranging from 0.15 to 0.50% by weight, Mn in an amount ranging from 0.5 to 1.0% by weight, Fe in an amount of not more than 0.15% by weight, Ti in an amount of not more than 0.1% by weight, Sb in an amount ranging from 0.05 to 0.20% by weight, B in an amount ranging from 0.005 to 0.02%, and balance consisting of aluminum and inevitable impurities.

Abstract: An aluminum alloy for die casting, contains, in terms of mass percentage: Si in the range of 1.0˜3.5%; Mg in the range of 2.5˜4.5%; Mn in the range of 0.3˜1.5%; Fe in the range equal to or less than 0.15%; Ti in the range of equal to or less than 0.20%; and the balance of aluminum and inevitable impurities. A die cast product having good strength and elongation in a high strain rate region is produced from the aluminum alloy without the need for solution heat treatment.

Abstract: To provide a wear resistance comparable with that of the conventional A390 series aluminum alloys, a reduced attacking to a sliding counterpart, and an improved machinability, a wear-resistant cast aluminum alloy comprises: a chemical composition consisting, in weight percentage of: 14.0-16.0 Si, 2.0-5.0 Cu, 0.1-1.0 Mg, 0.3-0.8 Mn, 0.1-0.3 Cr, 0.01-0.20 Ti, 0.003-0.02 P, 1. 5 or less Fe, and the balance of Al and unavoidable impurities in which the Ca content is limited to not more than 0.005; and a microstructure in which a primary Si crystal and Al-Si-Fe-MnCr-based intermetallic compounds are dispersed in the form of a crystallized particle having a diameter of from 5 to 30 gm. A process of producing a wear-resistant cast aluminum alloy includes casting a melt of the alloy composition at a cooling rate of from 50.degree. to 200.degree. C./sec.

Abstract: An aluminum alloy for forging comprising from 2.0 to 3.3% by weight of Si, from 0.2 to 0.6% by weight of Mg, from 0.01 to 0.1% by weight of Ti, from 0.0001 to 0.01% by weight of B, up to 0.15% by weight of Fe, one element or at least two elements selected from the group consisting of 0.001 to 0.01% by weight of Na, 0.001 to 0.05% by weight of Sr, 0.05 to 0.15% by weight of Sb and 0.0005 to 0.01% by weight of Ca, up to 0.001% by weight of P, the P/Ca weight ratio being up to 1.0, and the remainder Al, eutectic Si contained in the cast structure of said aluminum alloy having an average particle size of up to 20 .mu.m.

Abstract: A standard test specimen for optical emission spectrochemical analysis is prepared by molding into the specimen body finely divided particles consisting essentially of the metal or metal alloy to be analyzed without melting the same and preferably by plastic deformation of such particles. The resultant specimen is homogeneous throughout and stable in quality so that accurate analysis of any of its elements is possible and the suitability of the test material for a given product can be accurately predicted.