Study on Multiple Electromagnetic Continuous Casting of Aluminum Alloy  

作　　者：Zhifeng ZHANG Jun XUN Likai SHI 

机构地区：[1]National Engineering Research Center for Non-ferrous Metal Composites, General Research Institute for Non-ferrous Metals, Beijing 100088, China

出　　处：《Journal of Materials Science & Technology》2006年第4期437-440,共4页材料科学技术（英文版）

摘　　要：To obtain semi-solid Al alloy billet with high quality, an investigation was carried out by imposing a multiple magnetic field from the outside of a copper mold in the continuous casting. AISi6Mg2 alloy designed for semi-solid metal （SSM） processing was continuously cast through a submerged entry nozzle under various conditions. Effects of multiple magnetic field on meniscus motion, temperature distribution and billet quality were examined. The experimental results showed that meniscus disturbance caused by electromagnetic stirring could be controlled effectively and the surface quality of semi-solid AI alloy billet was improved greatly, and an uniformly fine, globular microstructure across the transverse section of the billet was achieved by optimizing the distribution of multiple magnetic field.To obtain semi-solid Al alloy billet with high quality, an investigation was carried out by imposing a multiple magnetic field from the outside of a copper mold in the continuous casting. AISi6Mg2 alloy designed for semi-solid metal （SSM） processing was continuously cast through a submerged entry nozzle under various conditions. Effects of multiple magnetic field on meniscus motion, temperature distribution and billet quality were examined. The experimental results showed that meniscus disturbance caused by electromagnetic stirring could be controlled effectively and the surface quality of semi-solid AI alloy billet was improved greatly, and an uniformly fine, globular microstructure across the transverse section of the billet was achieved by optimizing the distribution of multiple magnetic field.

关 键 词：Continuous casting Multiple magnetic field Aluminum alloy SEMI-SOLID MICROSTRUCTURE 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG249.7[金属学及工艺—金属材料]