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不锈钢在硝酸-氢氟酸中酸洗缓蚀抑雾剂的筛选
引用本文:龚敏,张远声.不锈钢在硝酸-氢氟酸中酸洗缓蚀抑雾剂的筛选[J].四川理工学院学报(自然科学版),2000,13(3):33-35.
作者姓名:龚敏  张远声
作者单位:四川轻化工学院材料与化学工程系,四川,自贡,643033
基金项目:中国科学院金属腐蚀所国家重点实验室基金
摘    要:采用线性极化技术对18-8不锈钢在8%HNO3+2%HF酸洗介质中的缓蚀抑雾剂进行筛选,经正交试验,得出最佳配方的组成为0.3%硫脲衍生物+0.2%乌洛托品+0.3%硫氰酸铵+0.2%十二烷基苯磺酸钠,缓蚀率达到99%,抑雾率达到85%左右,该最佳配方的缓蚀抑雾剂对材料的力学性能不产生影响。

关 键 词:不锈钢  硝酸-氢氟酸  缓蚀抑雾剂
修稿时间:2000-06-05

Screening of Corrosion and Acid Fog Inhibitor in Nitrate Acid and Hydrofluoric Acid for Stainless Steels
GONG Min,ZHANG Yuan-sheng.Screening of Corrosion and Acid Fog Inhibitor in Nitrate Acid and Hydrofluoric Acid for Stainless Steels[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2000,13(3):33-35.
Authors:GONG Min  ZHANG Yuan-sheng
Abstract:The corrosion and acid fog inhibitor for 18-8stainless steel in 8%HNO3 and 2%HF is screened by line polarization technique. An optimum formulation is determined by orthogonal test. The corrosion inhibition efficiency reaches 99% and acid fog inhibition efficiency reaches 85% when the mixing acid consisted of 0.3%thiourea derivative 0.2%methenamine 0.3%ammonium thiocyanate 0.2% sodium dodecyl benzene sulfonate (SDBS). the mixing acid never harms the strength of the stainless steels.
Keywords:stainless steel  nitrate acid and hydrofluoric acid  corrosion and acid fog inhibitor
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