C620-1车床主轴箱的润滑,我厂以往一直采用20号机械油。在加工电风扇后端盖及摇头齿轮时,转速分别为980r/min和1200r/min,润滑油换油周期平均为4个月。换油时发现炭黑严重,经分析认为是摩擦片磨损和油品温升过高分解结焦引起的(机床开动两小时后,打开箱盖,摩擦片近端温度为101℃)。 C620-1 lathe spindle box lubrication, our factory has been using the 20th machine oil. In the processing of fan rear end cover and shaking his head gear, the speed was 980r / min and 1200r / min, oil drain period averaged 4 months. Oil change was found to be serious carbon black, the analysis is that the friction plate wear and oil temperature decomposition caused by excessive decomposition (two hours after the machine starts, open the lid, the friction plate near the end of the temperature of 101 ℃).