Effect of electromagnetic field on macrosegregation of continuous casting 7075 alloy  

作　　者：张北江 崔建忠 路贵民 张勤 班春燕 

机构地区：[1]Key Laboratory of Ministry of Education for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, China

出　　处：《中国有色金属学会会刊：英文版》2003年第1期158-161,共4页Transactions of Nonferrous Metals Society of China

基　　金：Project(G19990 6 490 5 0 )supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina ;Project( 5 99740 0 9)supportedbytheNationalNaturalScienceFoundationofChina

摘　　要：The effect of electromagnetic field on macrosegregation of continuous casting aluminum alloy was studied. 7075 aluminum alloy ingot with diameter of 200 mm was produced by electromagnetic casting. Magnitude of coil current was varied from 100 A to 600 A, and frequency from 10 Hz to 100 Hz. Variation of element content along the radius of ingot was examined by means of chemical analysis. The results show that electromagnetic casting process can effectively reduce the macrosegregation, and electromagnetic frequency has a great influence on element distribution along the radius of ingot. When frequency is 30 Hz, macrosegregation is eliminated completely.The effect of electromagnetic field on macrosegregation of continuous casting aluminum alloy was studied. 7075 aluminum alloy ingot with diameter of 200 mm was produced by electromagnetic casting. Magnitude of coil current was varied from 100 A to 600 A, and frequency from 10 Hz to 100 Hz. Variation of element content along the radius of ingot was examined by means of chemical analysis. The results show that electromagnetic casting process can effectively reduce the macrosegregation, and electromagnetic frequency has a great influence on element distribution along the radius of ingot. When frequency is 30 Hz, macrosegregation is eliminated completely.

关 键 词：电磁场 连铸 铝合金 宏观偏析 

分 类 号：TG249.7[金属学及工艺—铸造]