基于均衡凝固理论的DISA线生产卡箍类铸件 工艺设计  

Process Design of Clamp-Type Castings Produced on DISA Line Based on Proportional Solidification Theory

作　　者：回春华 HUI Chun-hua(Dalian Bingshan Metal Technology Co.,Ltd.,Dalian 116000,Liaoning,China)

机构地区：[1]大连冰山金属技术有限公司,辽宁大连116000

出　　处：《铸造》2020年第11期1228-1231,共4页Foundry

摘　　要：采用原有的浇注工艺生产的球墨铸铁卡箍铸件,在远离浇口端的热节处产生缩孔、缩松缺陷,废品率达30%。在均衡凝固理论的指导下,重新进行了均衡凝固浇注系统工艺设计,在DISA垂直造型线.上生产出了无冒口的质量优良的卡箍铸件,缩孔、缩松缺陷得以消除。Ductile iron clamp-type castings produced on DISA line with the original casting process had the shrinkage and dispersed shrinkage defects in the hot spot far away from the gate end,and the reject rate was 30%.Under the guidance of proportional solidification theory,the casting process with the proportional solidification pouring system was redesigned,and the high quality clamp castings without riser was produced on the DISA vertical molding line,and the shrinkage and dispersed shrinkage defects were eliminated.

关 键 词：球墨铸铁 缩孔 缩松 均衡凝固 工艺设计 DISA线 

分 类 号：TG24[金属学及工艺—铸造]