钻机是地质勘探不可缺少的设备。从1963年开始,北京粉末冶金配件厂和北京探矿机械厂共同在XJ100—1型钻机上试验用铁基粉末冶金含油轴套取代锡青铜滑动轴套。通过对典型零件进行装车和野外钻探使用,证明零件性能完全达到青铜轴套的设讦要求。在此基础上扩大到整机使用,结果先后在XJ100—1型钻机、KD100型坑道钻机和DPP100型汽车钻机上 Drilling rig is an indispensable equipment for geological exploration. Since 1963, Beijing Powder Metallurgy Parts Factory and Beijing Prospecting Machinery Factory have jointly tested the use of iron-based powder metallurgy oil-contained bushings instead of tin bronze sliding bushings on XJ100-1 rigs. Through the typical parts for loading and field drilling to prove that the performance of the parts fully meet the set requirements of bronze bushings. On this basis, expanding to complete machine use, the results successively in the XJ100-1 drilling rig, KD100 tunnel boring machine and DPP100 car drilling rig