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在磨削阀芯(图1)外圆时,由于阀芯不对称,因此测量外圆直径比较困难,如果采用图2所示的测量卡尺,就可很方便地测出阀芯的外圆直径。
When grinding the outer circle of the valve plug (Figure 1), it is difficult to measure the diameter of the outer cylinder due to the unbalance of the valve plug. If the measuring caliper shown in Figure 2 is used, the outer diameter of the valve plug can be easily measured .