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我厂各类不锈钢加工工件比较多,如长径比大的螺纹、轴类零件,其尺寸精度等级7～8级,形位公差7～9级,要求都较高。 对于此类零件的加工,就需采用中心架支撑工件的另一端。此时中心架支撑爪与工作表面接触,因旋转会产生相互间的磨损,须靠润滑来减小磨损。一般采用机油和皂油作润滑剂。此种润滑方式,针对不锈钢加工而言,有两个缺点;第一,耗油量较大(因温升油液产生蒸发及流失和飞溅。第二,支撑面温度较高,造成支撑爪磨损大,工作表面易拉伤。
I plant all kinds of stainless steel processing more than the workpiece, such as the large diameter ratio of the thread, shaft parts, the dimensional accuracy of grade 7 to 8, the form of tolerance 7 to 9, the requirements are higher. For the processing of such parts, you need to use the center frame to support the other end of the workpiece. At this point the center frame support claw contact with the work surface, due to rotation will have mutual wear and tear, lubrication to reduce wear. Oil and soap are generally used as lubricants. This type of lubrication, for the stainless steel processing, there are two shortcomings; first, fuel consumption (due to temperature rise oil evaporation and loss and splashing.) Second, the support surface temperature is higher, causing the support claw wear Large, easy to pull the work surface.