Study on the application of citric acid-based passivator in stainless steel water storage tank industry
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摘要:
阐述了不锈钢腐蚀机理以及柠檬酸钝化机理,同时用C型柠檬酸基钝化剂对焊接样品不锈钢储水箱进行钝化处理,并通过中性盐雾测试,研究不同钝化处理工艺对焊接样品抗腐蚀性能的影响.实验结果表明,采用浓度为10，的C型柠檬酸基钝化剂进行钝化,能显著提高样品的抗腐蚀能力,最佳钝化工艺为钝化温度60 ℃、钝化时间30 min.
Abstract:
The stainless steel corrosion mechanism and the citric acid passivation mechanism were described. At the same time,the stainless steel water storage tank welding samples was passivated with a C-type citric acid passivator.Through the neutral salt spray test,the influence of different passivation treatment processes on the corrosion resistance of the welded samples were studied.The experimental results show that the passivation of C type citric acid passivating agent with a concentration of 10， can significantly improve the corrosion resistance of the samples.The optimum passivation process is passivation temperature 60 ℃and passivation time of 30 min.
