利用发热保温冒口解决钩体头部缩孔缺陷的探索  

Probe of the Shrinkage Cavity of the Hook Body Solved by Thermal Insulation Riser

作　　者：樊超 杜志强 刘江 李卫国 王虎明 

机构地区：[1]内蒙古第一机械集团公司第一分公司,内蒙古包头014032

出　　处：《铸造技术》2017年第12期3021-3023,共3页Foundry Technology

摘　　要：钩体采用型砂重力铸造批量生产,钩体头部高度尺寸在钩体整体结构中最高,由于生产线投入砂箱设计高度的限制,型砂普通冒口效果不理想,在钩体头部冒口根部产生缩孔缺陷。在改用发热保温冒口后,利用发热保温冒口的补缩优势,解决了钩体头部缩孔缺陷。The hook body was made in the form of sand gravity casting, the head height of the hook body was the highest in the overall structure. The common sand riser effect is not ideal, as a result, the shrinkage cavity defects located in the root of riser. The shrinkage cavity defects of hook body are solved by the thermal insulation riser, it could utilize the advantage of thermal insulation riser.

关 键 词：钩体头部 型砂普通冒口 缩孔缺陷 发热保温冒口 

分 类 号：TG23[金属学及工艺—铸造]