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磨内孔时,常因砂轮夹紧不牢而影响磨削质量。我们对夹紧方法作了如下改进:将原来的平垫圈改为空腹式垫圈,再加上两层浸有黄油的牛皮纸或硬纸板衬垫(图1和图2是按砂轮大小不同的两种形式)。经
Grinding the hole, often due to grinding wheel clamping is not strong and affect the quality of grinding. We made the following improvements to the clamping method: the original flat washers were changed to fasting washers, plus two layers of kraft paper or cardboard impregnated with butter (Figure 1 and Figure 2 are two different grinding wheel sizes form). through