轨道车辆牵引杆表面裂纹成因分析及改进措施  

Causation analysis and improvements to address surface cracks of traction rods of railway vehicles

作　　者：王燕玉[1] 李亚军 Wang Yanyu;Li Yajun

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《现代城市轨道交通》2023年第1期24-27,共4页Modern Urban Transit

基　　金：湖南省科技成果转化及产业化计划资助项目(2020GK4062)。

摘　　要：文章以一种锻造牵引杆的表面裂纹为例,从原材料性能、锻造工艺、热处理过程等方面对轨道车辆牵引杆表面裂纹进行分析研究,确定裂纹产生的原因,并提出解决方案,同时总结出针对锻件裂纹的快速分析流程及方法,为后续锻件产品的裂纹控制、裂纹原因分析提出相关建议。Using the surface crack of a forged traction rod as an example, this article analyzes and studies the surface cracks on the traction rod of railway vehicles from the perspectives of raw material performance, forging process,heat treatment process, etc. to determine the root cause of the crack and thus put forward solutions. This article, at the same time, summarizes the rapid analysis process and methods for the cracks of forgings and puts forward relevant suggestions for the crack control and cause analysis of other forging parts.

关 键 词：轨道车辆 锻造牵引杆 裂纹缺陷 热处理工艺 

分 类 号：TG157[金属学及工艺—热处理]