压铸模具的失效分析及寿命提高措施  

Failure Analysis on Die-casting Dies and Measures of Improving Service life

作　　者：丁海[1] 于汇泳[1] 程芳[1] 

机构地区：[1]河南机电高等专科学校材料工程系,河南新乡453002

出　　处：《铸造技术》2013年第3期308-310,共3页Foundry Technology

摘　　要：通过硬度测试、金相组织观察等手段,分析铝合金压铸模具龟裂失效的原因。结果发现,失效的主要原因是材料热处理工艺不当及电加工工艺缺陷。在生产实践中,通过优化结构设计,改进热处理工艺等措施,提高了模具的使用寿命。The reason for cracking failure of the die-casting dies for AI alloy was analyzed by hardness testing, metallographic microscope analysis and other means. The results show that the improper heat treatment process and the defects in electrical discharge machining are the main reasons for die cracking. In production, the service life of the dies was improved through the technique measurements of optimizing structure design of dies and improving heat treatment process.

关 键 词：压铸模具 失效 热处理工艺 使用寿命 

分 类 号：TG249.2[金属学及工艺—铸造]