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.
出处
《中国有色金属学会会刊：英文版》
CSCD
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
关键词
电磁场
连铸
铝合金
宏观偏析
electromagnetic field
continuous casting
macrosegregation
aluminum alloy
