修理量具工作面粗糙度时,关键在于掌握研磨过程中的压力和速度,以及合理选择研磨料的粒度。现以修复游标卡尺外测量面为例,具体说说其操作步骤。 1.根据游标卡尺被研面上需磨去的量,可以分粗、中、细三个研磨步骤。一般情况下,先用粒度为W5的氧化铬研磨膏进行研磨,再用W3进行中粗研磨,最后用W1.5进行细研磨。 Repair gage face roughness, the key is to master the pressure and speed of the grinding process, as well as a reasonable choice of abrasive size. Now to repair vernier caliper measuring surface, for example, specifically about the steps. 1. According to vernier caliper was ground to be ground on the amount of grinding, can be divided into coarse, medium and fine grinding three steps. Under normal circumstances, first with a particle size of W5 chromium oxide grinding paste grinding, and then W3 coarse grinding, and finally with W1.5 fine grinding.