覆膜砂壳型工艺在标动钩缓装置铸钢件上的应用研究  

Application research of coated sand shell molding technology on steel castings in coupler buffer device of standard EMUs

作　　者：刘健明 贾旭 李伟 曹松 姜伟航 LIU Jianming;JIA Xu;LI Wei;CAO Song;JIANG Weihang(CRRC QISHUYAN Institute Co.,Ltd.,Changzhou 213011,Jiangsu China;Jiangsu Lesd run Maoda Casting Co.,Ltd.,Jiangyin 214445,Jiangsu China)

机构地区：[1]中车戚墅堰机车车辆工艺研究所有限公司,江苏常州213011 [2]江苏朗锐茂达铸造有限公司,江苏江阴214445

出　　处：《中国铸造装备与技术》2020年第6期88-91,共4页China Foundry Machinery & Technology

摘　　要：轨道交通铸钢件表面质量要求较高,传统生产工艺铸件表面一致性差,夹砂、裂纹等缺陷较多,难以满足客户要求。通过覆膜砂壳型工艺试验及型芯、型砂、涂料等过程控制,铸件质量得以显著提升,获得了良好的改进效果。The surface quality of steel castings in rail transit has been required to be higher,and the surface consistency of steel castings in traditional production process is poor with many defects such as sand clamping and cracks,which can hardly meet the requirements of customers.Through the coated sand shell type process test and process control of core,molding sand,coating,the casting quality has been significantly improved and good improvement results have been obtained.

关 键 词：覆膜砂壳型 铸钢件 生产工艺 缺陷 铸件质量 

分 类 号：TG249[金属学及工艺—铸造]