销轴(如图1所示)、销套是我矿主要的采矿设备2300XP、2100XP型电动挖掘机常用的易损件 ,主要使用在斗柄、提梁与铲斗的连接部及履带架上 ,磨损快 ,更换量大,长期依赖进口 ,制约了我矿的生产 ,随着进口零件国产化的开展 ,这类零件的开发越来越受到公司领导的重视。我公司采用20C Pins (Figure 1), pin sets mine mine is the main mining equipment 2300XP, 2100XP-type electric excavator commonly used wearing parts, mainly used in bucket handle, broom and bucket connection and the track frame, Wear fast, large replacement, long-term dependence on imports, restricting the production of mine, with the localization of imported parts carried out, the development of such parts more and more by the leadership of the company’s attention. My company uses 20C