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.

1 . 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.   
     
     
         2 . The alloy material according to  claim 1 , wherein the Si content is 1.11%. 
     
     
         3 . The alloy material according to  claim 1 , wherein the Mn content is 0.69%. 
     
     
         4 . 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.   
     
     
         5 . The manufacturing process of an alloy material according to  claim 4 , wherein: in the step (2), the melting furnace is heated up to 705-750° C. at a rate of 260-280° C./h.