一种压铸模具的挤压销换向机构  

A Reversing Mechanism of Extrusion Pin for Die Casting Die

作　　者：王悦民 杨迎风 姜先锋 丰亮 WANG Yue-min;YANG Ying-feng;JIANG Xian-feng;FENG Liang(Guangdong Hongtu(Nantong)Die-Casting Co.,Ltd.,Nantong 226314,Jiangsu,China)

机构地区：[1]广东鸿图南通压铸有限公司,江苏南通226314

出　　处：《铸造》2020年第2期174-177,共4页Foundry

摘　　要：为了消除铸件的气缩孔缺陷,在压铸模具定模侧增加了一种新型局部挤压换向机构。该机构能够在不增加定模模具厚度的情况下应用局部挤压工艺防止铸件热节位置形成气缩孔。该新型局部挤压换向机构不仅设计精巧、节约空间、故障率低、使用可靠,并且构件价格低廉,值得推广应用。In order to eliminate the blowhole shrinkage defects in die castings,a new type of local extrusion reversing mechanism is adopted on the fixed die side of the die casting die.The local extrusion reversing mechanism can prevent the blowhole shrinkage formation in hot spot position without increasing the thickness of fixed die.This new type of local extrusion reversing mechanism is not only exquisite in design,saving space,low failure rate and reliable in use,but also cheap in component price.Therefore,it is worthy of popularization and application.

关 键 词：压铸模具 挤压销 局部挤压 换向 气缩孔 

分 类 号：TG241.1[金属学及工艺—铸造]