注塑机定模板的铸造工艺  

Casting Process of Injection Molding Machine Fixed Die Plate

作　　者：刘光清[1] 刘文川[2] 魏晓伟[3] 卢亭玉[1] 张义[1] 

机构地区：[1]南充职业技术学院,四川南充637100 [2]西南内燃机配件总厂,四川南充637100 [3]西华大学材料科学与工程学院,四川成都610039

出　　处：《铸造》2015年第4期372-374,377,共4页Foundry

基　　金：四川省教育厅2014年度科研计划立项-自然科学理工科重点项目(14ZA0336)

摘　　要：介绍了一种全液压内循环二板式注塑机定模板铸件的结构特点,对其大面朝下,底侧进液的原铸造工艺易出现缩孔、缩松、气孔、夹渣、渗漏缺陷进行了分析。阐述了应用均衡凝固理论、"铸件下箱优先设置"、"有效浇注时间"等新理论、新理念指导确立的大面朝上的三箱造型新铸造工艺方案,克服了原铸造工艺方案出现的铸造缺陷,铸件合格率大幅提高,获得了内部组织致密、质量良好的定模板铸件。The structural features of a kind of full internal circulation two plate injection molding machine template casting were introduced. The original casting process with big face down and the bottom side liquid inlet was analyzed, which casting defects easily occur such as shrinkage, dispersed shrinkage, blowhole, slag inclusion and the serious leakage. In order to solve the problem, a new casting process was put forward： high upthree box styling based upon some new theories which are proportional solidification, priority-of-setting of casting box, the effective pouring time, etc. The casting defects were eliminated, and the qualified rate of the castings is increased sharply. Internal structure of casting is compacted and the fixed mould plate casting with high quality was obtained.

关 键 词：定模板 均衡凝固理论 铸件下箱优先设置 有效浇注时间 

分 类 号：TG24[金属学及工艺—铸造]