热挤压凸模的热疲劳失效  

Thermal Failure for Hot-Extruding Terrace Dies

作　　者：齐宝森[1] 徐英[1] 莫之民[2] 于龙基 

机构地区：[1]山东工业大学,济南250061 [2]山东大学 [3]淄博职工大学

出　　处：《物理测试》1997年第5期43-45,共3页Physics Examination and Testing

摘　　要：通过5Cr4W5Mo2V热挤压凸模热疲劳失效形式及原因的研究,探讨了提高模具热疲劳性能的途径与方法。生产应用表明:表面强化可有效地提高热挤压模具的热疲劳性能。Based on the study on types and reasons for thermal fatigue failure of hot-extrusion dies made form 5Cr4W5Mo2V steel,the ways and methods of improing resistance to thermal fatigue of the dies have been involved. It have been proved by practice that the resistance to thermal fatigue can be enhanced effecting by surface strengthening.

关 键 词：热疲劳 失效 热挤压 凸度 表面强化 热处理 

分 类 号：TG375.41[金属学及工艺—金属压力加工] TG162.4