1 前言轻骑摩托车零件齿轮轴、游轮、凸轮轴等是易损件,工作中高速运转,要求耐磨,抗冲击.目前,国内对此种零件的处理,多为气体渗碳,这种工艺方法存在碳黑多,炉内碳势较难测定和控制,工艺不稳定和渗碳工件质量不高的缺点;而采用碳氮共渗工艺,产品质量有了明显提高,收到了工件变形开裂少,疲劳抗力、耐磨性、耐蚀性和回火稳定性高的效果,经过一年的试验,取得了较大的效益. 1 Introduction Qingqi motorcycle parts gear shaft, cruise ship, camshaft and other vulnerable parts, work at high speed, requiring wear resistance, impact resistance.At present, the domestic treatment of such parts, mostly gas carburizing, this process The method has the disadvantages of more carbon black, more difficult determination and control of the carbon potential in the furnace, unstable process and poor quality of the carburized workpiece. However, with the carbonitriding process, the quality of the product has been significantly improved, and the deformation of the workpiece has been less cracked , Fatigue resistance, wear resistance, corrosion resistance and high tempering stability of the results, after a year of testing, and achieved greater benefits.