摘要
针对火车车轮在热成型过程中车轮辐板外侧面易产生裂纹问题,采用低倍检验、金相组织和化学成分分析等方法对裂纹产生原因进行了探讨。结果表明,裂纹的产生是由于车轮辐板在热成型中受到强烈的冷却影响所致,从而采取了相应的改进措施,取得了较好效果。
The crack reformation of the the train wheel＇s front web face during the hot shaping process was analyzed by means of nmcro-structure examination, metallographic examination and chemistry composition analysis. The result shows that high cooling speed is the main reason of reforming the crack.Meanwhile, the countermeasures were put forward and good effect was obtained.
出处
《轧钢》
2006年第1期24-25,共2页
Steel Rolling
关键词
火车车轮
辐板外侧面
裂纹
热成型
train wheel
front web face, cracking
hot shaping process
