ZL114A铝合金油路壳体低压铸造工艺研究  

Low Pressure Casting ZL114A Oil Circuit Shell Casting

作　　者：黄粒[1] 杜旭初[1] 罗传彪[1] 樊振中[1] 李大奎[1] 

机构地区：[1]中国航空工业集团公司北京航空材料研究院,北京市先进铝合金材料及应用工程技术研究中心

出　　处：《特种铸造及有色合金》2016年第8期826-829,共4页Special Casting & Nonferrous Alloys

摘　　要：研究了低压铸造生产ZL114A铝合金油路壳体铸件中合金成分优化、晶粒细化变质以及熔体净化对ZL114A力学性能和微观组织的影响,并采用ProCAST软件对壳体铸造工艺和铸造过程进行了模拟优化。结果表明,成分优化、晶粒细化以及合金熔体纯净化处理可有效改善ZL114A合金的微观组织,使铸件局部力学性能超过技术指标要求;采用缝隙式浇注系统,配合厚大部位放置冷铁,可有效改善铸件内部质量,减少缩松缺陷。ZL114Aoil circuit shell casting was produced by the low pressure casting.Effects of the optimization of composition,grain refinement and melt treatment of ZL114 Aon the microstructure and mechanical properties of the shell casting were investigated.Furthermore,The processing parameters of low pressure casting and solidification process were simulated by the ProCAST software.The results show that,by using high purity raw material,alloy composition optimization,refinement of the alloy and melt purification treatment,the performance of ZL114 Aalloy is increases greatly.Slot gating system and thick area placed chill can improve the internal quality obviously of the shell casting with decreasing shrinkage porosities.

关 键 词：ZL114A合金 数值模拟 低压铸造 

分 类 号：TG249.2[金属学及工艺—铸造]