铸件夹砂缺陷原因分析及对策  

Analysis and Measure of Casting Scab Defect

作　　者：毛永涛 厉运杰 孙志扬 杜纪柱 伍启华 庄肃栋 MAO Yong-tao;LI Yun-jie;SUN Zhi-yang;DU Ji-zhu;WU Qi-hua;ZHUNG Su-dong(Weichai Power Casting＆Forging Co.,Ltd.,Weifang Shandong 261199,China)

机构地区：[1]潍柴动力(潍坊)铸锻有限公司,山东潍坊261199

出　　处：《铸造设备与工艺》2018年第3期41-43,共3页Foundry Equipment & Technology

摘　　要：本文对铸件两种不同位置的夹砂缺陷的产生原因进行了分析,并结合生产实际从型砂性能、铸件结构与浇注系统等方面提出改善措施,使不同位置的夹砂缺陷均得到解决。In this paper,the cause of sand inclusion defect at two different positions in the casting were analyzed. Improvement measures were put forward,combined with actual production from the sand properties,the structure of casting and pouring system. In the end,the sand inclusion defect was solved.

关 键 词：夹砂 热湿拉强度 退让性 浇注系统 应力释放槽 

分 类 号：TG245[金属学及工艺—铸造]