凸缘模具芯杆失效原因分析  

Failure Reason Analysis on Core Rod of Flange Die

作　　者：孙二举[1] 李宁[1] 马艳霞[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471039

出　　处：《热加工工艺》2016年第12期253-255,共3页Hot Working Technology

摘　　要：通过金相试验、化学成分分析及硬度试验分析了3Cr2W8V凸缘模具芯杆变形失效的原因。结果表明,较高的使用温度对模具芯杆的使用性能和寿命产生不良影响。改善芯杆的冶金、锻造和热处理工艺,或选用热疲劳性能更好的材料是解决凸缘模具芯杆失效的有效途径。The distortion failure reason for core rod of 3Cr2W8V flange die was analyzed by metallographic test, chemical composition analysis and hardness test. The results show that higher service temperature has harmful effects on the service life and performance for core rod of flange die. Improving metallurgy, forging and heat treatment process, or selecting material with better thermal fatigue property is the effective way for solving the failure for core rod of flange die.

关 键 词：芯杆 中碳高合金钢 热作模具 

分 类 号：TG142.45[一般工业技术—材料科学与工程]