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晶间腐蚀倾向是表征不锈钢质量好坏的最重要的指标之一。 18-8型奥氏体不锈钢、超低碳不锈钢等晶间腐蚀倾向试验是按国家标准GB1223—75规定之T法、L法、X法进行试验。这些方法要求在沸腾的硫酸——硫酸铜(加铜屑)溶液(T法)、硫酸——硫酸铜溶液(L法)和65%的硝酸溶液(X法中腐蚀,并且腐蚀溶液的浓度保持不变.连续不断地腐蚀24小时或48小时。这样长时间地试验,就要安排值班人员看守,否则会由于停水或停电造成腐蚀试验事故。为了解决不锈钢晶间腐蚀倾向试验即使在没有人
Intergranular corrosion tendency is one of the most important indicators of the quality of stainless steel. 18-8-type austenitic stainless steel, ultra-low carbon stainless steel intergranular corrosion propensity test is based on the national standard GB1223-75 T method, L method, X method test. These methods require etching in boiling sulfuric acid-copper sulphate solutions (method T), sulfuric acid-copper sulphate solution (method L) and 65% nitric acid solution (method X), and the concentration of the etching solution is maintained The same constant corrosion of 24 hours or 48 hours so long test, we must arrange for duty guards, or will be due to no water or power failure corrosion test accident.In order to solve the stainless steel intergranular corrosion propensity test even in the absence of people