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单一的化学抛光法,不易找到合适的化学抛光液,难于得到满意的金相试样。化学-机械联合抛光法简便又易消除扰乱的金属层,是一种值得推广的方法。现将几个钢种的化学-机械联合抛光法介绍如下。 1 弹簧钢脱碳层试样的制备溶液制备水:100毫升;草酸:5克;过氧化氢(30%):2～15毫升;室温。试样为60Si2Mn和55Si2Mn弹簧扁钢。经60号
A single chemical polishing method, not easy to find a suitable chemical polishing solution, difficult to get a satisfactory metallographic sample. Chemical - mechanical polishing method is simple and easy to eliminate the disruption of the metal layer, is a worthy method of promotion. Now several types of chemical-mechanical polishing method is described below. Preparation of a sample of spring steel decarburized layer Solution Preparation Water: 100 ml; oxalic acid: 5 g; hydrogen peroxide (30%): 2 to 15 ml; The samples are 60Si2Mn and 55Si2Mn spring flat steel. After the 60th