ZL101A合金摇枕座铸件铸造工艺研究  

Casting Process of ZL101A Body Bolster Castings

作　　者：金泰木 高艳丽 黄粒 杜旭初 丁小明 展旭和 JIN Tai-mu;GAO YAN-li;HUANG Li;DU Xu-chu;DING Xiao-ming;ZHAN Xu-he(National Innovation Center of High Speed Train,Qingdao 266109,Shandong,China;Beijing Institute of Aeronautical Materials,Beijing 100095,China;Beijing Engineering Research Center for Advanced Aluminum Alloys,Beijing 100095,China;National Innovation(Qingdao)High Speed Train Material Research Institute Co.,Ltd.,Shandong,China)

机构地区：[1]国家高速列车青岛创新中心,山东青岛266109 [2]中国航发北京航空材料研究院,北京100095 [3]北京市先进铝合金材料及应用工程技术研究中心,北京100095 [4]航材国创(青岛)高铁材料研究院有限公司,山东青岛266109

出　　处：《铸造》2020年第6期640-646,共7页Foundry

基　　金：国家高速列车技术创新中心建设专项科技研发项目(2019JK-0201)。

摘　　要：摇枕座铸件为ZL101A合金,是高速磁浮车走行部件的关键部件。文中针对ZL101A摇枕座铸件的结构特点与性能要求,分析了该铸件的铸造工艺特点,开展了ZL101A合金综合性能优化研究。从成分优化、晶粒细化、熔体处理以及铸造工艺方案设计、铸造ProCAST数值仿真五个方面进行了技术研究。结果表明:采用高纯原料,配合晶粒细化、初生硅球化,可有效提升ZL101A合金的综合性能;采用低压浇注工艺,配合底注式浇注系统和厚大部位放置冷铁的铸造工艺,可制备出内部质量良好的摇枕座铸件,满足设计指标要求。ZL101A alloy body bolster casting is a critical component of the running system of high-speed magnetic levitation.Based on the structure feature of the body bolster casting and the characteristics of ZL101A alloy,the key points of the casting process were analyzed.The study was carried out from five aspects of composition optimization,alloy refinement,melt treatment,casting process design,ProCAST numerical simulation.The results show that the performance of ZL101A alloy is significantly improved by using high purity raw materials,optimizing alloy composition,modifying and treating the alloy melt,and the castings with excellent internal quality can be obtained by using low pressure casting method,bottom gating system and setting chill on the thick,large area.

关 键 词：ZL101A 摇枕座 数值模拟 低压铸造 

分 类 号：TG292[金属学及工艺—铸造]