高气密性阀板压铸模具设计及实践  

Design and Practice of Die Casting Die for High Gastight Valve Plate

作　　者：旷鑫文 张正来 贾志欣[2] KUANG Xin-wen;ZHANG Zheng-lai;JIAZhi-xin(Zhejiang Huashuo Technology Co., Ltd., Ningbo 315800, Zhejiang, China;Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, Zhejiang, China)

机构地区：[1]浙江华朔科技股份有限公司,浙江宁波315800 [2]浙江大学宁波理工学院,浙江宁波315100

出　　处：《铸造》2019年第8期896-901,共6页Foundry

基　　金：宁波市北仑区科技创新团队项目(2015BL0003)

摘　　要：分析了压铸件产生气孔的原因,根据铝合金阀板零件高气密性要求及结构特点,在模具上通过合理设计模芯结构、浇注和排气系统、高气密性孔处加强冷却并设置吹气喷涂结构,水路与高压点冷相结合的方式对模具温度进行监控,确保了产品的质量,提高了模具寿命和生产效率。The formation causes of gas holes in die castings were analyzed. According to the structural characteristics of high gastight valve plates, the design of die-casting die was optimized in gating system and venting system as well as nearly integrated die core structure. In addition, proper cooling system was added to decrease the gas hole. At the same time, special cooling pipe was adopted to improve the cooling effect, and inner spray and gas blow structure were designed for long pin. Actual production application shows that both the die service life and the production efficiency were increased.

关 键 词：压铸件气孔 压铸模 冷却系统 

分 类 号：TG249.2[金属学及工艺—铸造]