摘要
在对机车转向架螺旋锥齿轮的粗、精加工中发现其表面鼓起许多小泡，将其剖开酸洗后呈现为小裂纹状，该现象在实际生产中较为罕见，对此进行分析，探讨，查找原因，确定这是钢材内气泡未能焊合的结果，为此制定了改进措施。
During coarse and small machining of screw cone gears in marshalling bodies, many air bubbles were seen on the surface. After cutting and acid pickling, they changed into small cracks. This phenomenon appears extremely rare in the actual production. Analyzing think the phenomenon results from the non-welding bubbte in steel, so improvement measures are put out.
出处
《热加工工艺》
CSCD
北大核心
2006年第21期58-59,共2页
Hot Working Technology
