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HIGH CORROSION RESISTANT CHROMIUM PLATING STAINLESS STEEL PRODUCT AND PRODUCTION THEREOF
HIGH CORROSION RESISTANT CHROMIUM PLATING STAINLESS STEEL PRODUCT AND PRODUCTION THEREOF
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机译:高耐蚀镀铬不锈钢产品及其生产
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摘要
PURPOSE:To obtain a chromium plating stainless steel product capable of being utilized in the severe corrosive environment by performing chromium plating having specified thickness on the surface of a stainless steel product and specifying electric potential correspondent to the specified current density of a positive polarization curve in hydrochloric acid having specified concn. CONSTITUTION:Chromium plating having 0.1-1.0mum thickness is directly preformed on the surface of a stainless steel product. Electric potential 100. t.p. correspondent to 100muA/cm2 current density of a positive polarization curve in 0.25 normal hydrochloric acid (50 deg.C) is regulated to 0.5V (Ag/AgCl) or more. Chromium plating having 0.1-1.0mum thickness is performed on the surface of the stainless steel product. Hydrogen occluded in the plated layer is discharged by heating the chromium plating in the atmosphere. Thereby, the chromium plating stainless steel product excellent in pitting and crevice corrosion resistance is obtained.
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机译:用途:通过在不锈钢产品的表面上执行具有指定厚度的镀铬,并指定与正极性曲线中指定电流密度相对应的电势,从而获得能够在严重腐蚀环境中使用的镀铬不锈钢产品。具有规定浓度的盐酸。组成:厚度为0.1-1.0μm的铬镀层直接在不锈钢产品的表面上进行。电势100. t.p.对应于在0.25标准盐酸(50℃)中的正极化曲线的电流密度的100μA/ cm 2调节至0.5V(Ag / AgCl)或更高。在不锈钢产品的表面进行厚度为0.1-1.0μm的铬电镀。通过在大气中加热铬镀层,可以将积存在镀层中的氢排出。由此,获得了耐点蚀和耐缝隙腐蚀性优异的镀铬不锈钢产品。
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