我厂聚丙烯双向拉伸机(简称BOPP 生产线)横向拉伸设备,其链条的链销、链轨和开夹器的润滑是由计算机自动控制的。经过4年多的运行,润滑系统的配油器出现了故障,一度严重困扰着生产。在维修过程中发现配油器的柱塞和内孔表面有不同程度的拉伤,使柱塞 I plant polypropylene two-way stretching machine (referred to as BOPP production line) horizontal stretching equipment, the chain of the chain pin, chain track and open folder lubrication is controlled by the computer automatically. After more than four years of operation, the lubrication system of the oil distributor has failed, once seriously haunting the production. In the repair process found that the oil distributor piston and the bore surface have different degrees of strain, so that the plunger