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1 问题的提出 桂林机务段从2000年4月开始引进DF4D型客运机车,目前共配属其同类机车20台。从这两年多来的使用情况来看,机油老化的问题比较突出。根据最近统计的数据,机车因机油老化而更换1次新油的平均周期只有3个月。可见,如何延长机油的使用寿命,降低其老化速度,已成为
1 PROBLEM PROBLEMS Guilin Locomotive Depot introduced DF4D passenger locomotives from April 2000, and now it has a total of 20 locomotives of its kind. From the use of more than two years of view, the problem of aging oil is more prominent. According to recent statistics, the average cycle of locomotive replacement of fresh oil due to aging of the oil is only 3 months. Visible, how to extend the service life of oil, reduce its aging speed, has become