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一般的淬火后,钢材或工件表面都要蒙上一层氧化皮。为了得到光亮的钢材,淬火后需化费很大的工作量来进行研磨与抛光等处理工作。以前也曾在中性气体或盐浴槽中加热、放入盐浴槽中淬火,但仍不能得到光亮的钢材表面。现在有一种新的光亮淬火方法,淬火后可以得到光亮的表面,因而不需要处理即可直接进行各种镀塗层的加工工作。这种方法是在淬火的同时进行电解抛光工作。电解液是88％正磷酸与12％无水铬酸组成。被淬火钢材放在电
After the general quenching, steel or workpiece surface must be covered with a layer of oxide skin. In order to get bright steel, after quenching need to spend a lot of work to carry out grinding and polishing and other processing work. In the past, it was also heated in a neutral gas or salt bath and quenched in a salt bath, but no bright steel surface was obtained. There is now a new method of bright quenching that gives a shiny surface after quenching, thus allowing for direct coating of various coatings without the need for processing. This method is carried out while quenching electrolytic polishing work. Electrolyte is 88% orthophosphoric acid and 12% anhydrous chromic acid composition. Hardened steel on the electricity