电磁-斜槽复合法制备铝合金半固态浆料  

Preparation of Semi-solid Slurry by Using EMS-CS Process

作　　者：左世斌[1] 曹志强[1] 李鹏超[1] 王同敏[1] 李廷举[1] 

机构地区：[1]大连理工大学铸造工程研究中心

出　　处：《特种铸造及有色合金》2012年第5期433-437,共5页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51071035);高等学校博士学科专项科研基金资助项目(20100041110030)

摘　　要：采用自制的电磁-斜槽复合浆料制备装置,制备了半固态AlSi9Cu3合金浆料。选取斜槽角度、浇注温度和电磁搅拌电压为试验因素,用正交试验法进行了工艺参数分析。结果表明,对半固态组织初生相平均等效直径的影响顺序为:浇注温度、斜槽角度、搅拌电压;对半固态组织初生相平均圆整度影响的因素顺序为:电磁搅拌电压、斜槽角度、浇注温度。通过试验得到的最优工艺参数:斜槽角度为25°～35°,浇注温度为650℃,电磁搅拌电压为200～300V。By using self-developed electromagnetic stirring-cooling slope（EMS-CS） equipment,semi-solid AlSi9Cu3 alloy slurry was prepared.Effects of slope angle,pouring temperature and EMS voltage on microstructure of AlSi9Cu3 alloy were investigated by orthogonal test method.The results show that the three factors influencing the average equivalent diameter of the primary phase are as follows：pouring temperature,slope angle,EMS-voltage,and they influencing the average shape factor of the primary phase are as follows：EMS-voltage,slope angle,pouring temperature.The optimized processing parameters for preparing the semi-solid slurry with desirable structure are presented as slope angle of 25°~35°,pouring temperature of 650 ℃ and EMS voltage of 200 V^300 V.

关 键 词：半固态 AL-SI合金 电磁-斜槽 正交试验 

分 类 号：TG292[金属学及工艺—铸造]