自1997年以来，我厂在1650圆锥破碎机机座部使用MG改性尼龙村套代替铜村套，经使用效果良好。1优点及使用中应注意的几个问题1．1MG改性尼龙村套和铜材套（ZQSns－2！）性能及其它各项参数指标比较见表Ic从表1可看出MG改性尼龙村套的优点：（！）由于其加J精度要求低，大大缩短 Since 1997, our factory uses the MG modified nylon sleeve instead of the copper sleeve in the base of 1650 cone crusher, and the effect is good. 1 Advantages and should pay attention to the use of several issues 1.1MG modified nylon village sets and copper sleeve (ZQSns-2!) Performance and other parameters in Table Ic Table Ic can be seen from Table 1 MG modified nylon The advantages of the village set: (!) Because of its low accuracy requirements plus J, greatly shortened