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电解抛光的应用较早,但在直柄麻花钻方面的应用目前国内尚未见报道。1989年我厂根据市场需求;进行了电解抛光直柄麻花钻的工艺试验,现将试验成功的两种电解抛光工艺简介如下,以供同行参考。一、电解抛光机理电解抛光时,以直柄麻花钻为阳极,不锈钢为阴极。通电后产生电极溶解,使阳极附近金属盐浓度不断增加,生成一种粘性薄膜,这种薄膜导电性不良,引起阳极极化作用,使阳极电位升高;而在工件凸凹不平表面上薄膜厚度分布是不均匀的,凸起部位的薄膜厚度较小,因而电阻较小、电力线集中,电流密度较低凹部位大,所以凸起部位金属溶解速度大于低凹部位溶解速
Electrolytic polishing earlier, but the application of straight shank twist drill at home has not been reported. 1989 I plant according to market demand; conducted electrolytic polishing straight shank twist drill process test, now the successful trial of two electrolytic polishing process is as follows, for peer reference. First, the electrolytic polishing mechanism Electrolytic polishing, straight-twist drills for the anode, stainless steel cathode. After the electricity is generated, the electrode is dissolved to make the concentration of the metal salt in the vicinity of the anode continuously increase to form a viscous film, which has poor conductivity and causes anodic polarization to increase the anode potential. On the uneven surface of the workpiece, the film thickness distribution Is uneven, the convex part of the smaller film thickness, and therefore less resistance, power lines focus on the lower current density concave parts, so the convex part of the metal dissolution rate is greater than the dissolution rate of the concave parts