Alloy material and process of manufacturing same

Abstract

The present invention discloses an alloy material and a manufacturing process of its bars. The technical solution of the present invention is: an alloy material, wherein it comprises, in mass %: Si, 0.8-1.2%; Fe,0- 0.5%; Cu, 0.15-0.6%; Mn, 0.2-0.8%; Mg, 0.6-0.1%; Cr, 0-0.1%; Zn, 0-0.25%; Ti, 0-0.1%; the balance is Al. The Si content is 1.11%. The Mn content is 0.69%. A manufacturing process of an alloy material, wherein it comprises the following steps: (1) Weighing the raw material of each component by mass percentage; (2) Placing the raw material in a melting furnace and smelt it into an alloy liquid, until the temperature of the alloy liquid reaches 705-750° C., keeping for 45-60 minutes; (3) After the alloy liquid temperature falls to 520-580° C., add refining agent, heat up to 670-710° C., and carry out composition inspection; (4). After the alloy liquid is cooled down to 650-660° C. by holding, it is poured into molds where the bars are formed by cooling. According to the solution provided by the invention, the alloy has high tensile strength and yield strength.

Dependencies are inferred from the claim text.