薄盘类齿轮渗碳淬火变形的控制

摘要

变速箱、变矩器中的齿轮大都属于薄盘类，而且需要进行渗碳淬火处理，盘径较大的则经常出现变形超差现象。以前对这类零件采用压床淬火，但问题仍未完全解决。我们对此类零件进行了攻关，采取了一些有利于减少变形的综合措施，收到了良好的效果%The gears in speed change boxes and moment changers are normally of pan shape and will be carburized and quenched.Distortion of larger diameter gears will frequently overstep tolerance.Therefore the gears were to be quenched by press but failed to fully meet the needs for distortion .The problem was taken as key to be researched,and comprehensive precautions were taken to reduce the gears distortion,as a result,good results have been obtained.