A356合金电场传感器壳体半固态压铸优化  

Processing Optimization of Semi-solid Die Casting for Electric Field Sensor Shell

作　　者：辛恩承[1] 袁海文[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院

出　　处：《特种铸造及有色合金》2014年第9期925-928,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(61273165)

摘　　要：采用缝隙式浇注系统,在充型温度为590℃,模具预热温度为200℃,压射速度为5m/s时,利用ProCAST软件,对A356合金电场传感器壳体半固态压铸件进行了充型与凝固过程的数值模拟,根据模拟结果改进了浇注系统。结果表明,采用内浇口和铸件相切的方式进行半固态压铸,减少了卷气和缩孔、缩松等缺陷,保证了电场传感器壳体良好的力学性能和产品的一致性,压铸件的整体品质得到提高。采用此工艺参数进行试验,生产出了合格的铸件。Using the slot gating system,with filling temperature of 590 ℃,mould preheating temperature of 200℃,injection speed of 5m/s,the filling and solidification process of A356 alloy electric field sensor shell were simulated by the ProCAST software to improve and optimize the gating system parameters.The results show that using semi-solid casting in form of the gate with castings tangential,gasentrapment and shrinkage porosity can be decreased to ensure mechanical performance consistency of the electric field sensor,and the overall quality of the electric field sensor is improved.Adopting the optimized parameters experiment,qualified electric field sensor was produced successfully.

关 键 词：半固态压铸 数值模拟 浇注系统 缩孔、缩松 

分 类 号：TG249.2[金属学及工艺—铸造]