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大多数金属切削机床导轨的磨损,是互相啃伤和磨料磨损,而且两者是同时发生。它在修理时的劳动量很大,占总修理量的40～50％,增高了修理成本。消除床身导轨啃伤及恢复导轨的办法很多,我厂自1962年开始,在C620、C630、C650等车床和HWC卧式镗床上,采用粘结塑料的方法来恢复机床导轨,取得很好效果,显著降低床身导轨的磨损速度,提高机床使用寿命,且无啃伤和划痕迹象,大大降低修理导轨的劳动量和费用。但其缺点是,耐磨性比铸铁导轨差,塑料和粘结剂系脆性材料,加工时容易碰伤,对滑动速度高或承受压强大的机床,尚不宜采用。现将几年来使用情况介绍于下。
Most metal cutting machine tool rails wear and tear, abrasion and abrasion each other, but both simultaneously. It is in the repair of a large amount of labor, accounting for 40 to 50% of the total repair, increased repair costs. There are many ways to eliminate the rail bites and to restore the guide rails. Since 1962, we have used cementing methods to restore the machine guideways on C620, C630, C650 and other lathe and HWC horizontal boring mills, and achieved good results , Significantly reducing the wear rate of bed rails, improve machine tool life, and no barking and scratches signs, greatly reducing the amount of labor and cost of repairing the guide rail. However, its disadvantage is that the wear resistance of cast iron rail is worse, plastic and binder brittle materials, easy to bruise processing, sliding speed is high or withstand the pressure of large machines, is not suitable for use. Now the use of the past few years below.