我厂加工的大部分轴、操纵箱、油压筒、活塞、定压阀、汽缸等,它们的外圆、内孔和平面等,都需要进行研磨加工。一般都采用铸铁研具,用氧化铝、碳化矽或氧化铭作磨料,由手工来进行研磨。这样虽然能够保证工件 Most of the shaft, control box, hydraulic cylinder, piston, constant pressure valve, cylinder and so on, which are processed by our factory, need to be grinded by their outer circle, inner hole and plane. Cast iron research tools are generally used, with alumina, silicon carbide or oxidation Ming as abrasive, by hand to carry out grinding. Although this can guarantee the workpiece