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由于不锈钢材某些特性在工业上应用日益广泛。不锈钢材经调质、淬火等热处理后,表面需要进行酸洗钝化,以便消除氧化皮、提高耐腐蚀性能。目前采用的酸洗方法较多,有H_2 SO_4、H_2 SO_4+Na C_1、HNO_3+HF,但H_2 SO_4法速度较慢;而HNO3+HF方法虽然速度快,但HF对人体的健康影响较大,污水处理又困难。在实
As stainless steel some of the characteristics of the increasingly widespread use in industry. After quenched and tempered stainless steel, quenching and other heat treatment, the surface need to pickling passivation in order to eliminate scale, improve corrosion resistance. However, the HNO3 + HF method is faster, but HF has a greater impact on the health of the human body. However, the H 2 SO 4, H 2 SO 4 + Na C 1 and HNO 3 + Sewage treatment is difficult. In fact