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通过模拟试验 ,研究了气相缓蚀剂 (VPI)亚硝酸二环己胺 (DICHAN)对 2 0 #钢的保护作用规律 .结果发现 ,DICHAN是化学吸附型缓蚀剂 ,既可用于密闭体系 ,也可用于敞开体系 .
Through the simulation test, the protective effect of VPI nitric acid DICHAN on 20 # steel has been studied.The results show that DICHAN is a chemical adsorption type corrosion inhibitor, which can be used in closed system, Can also be used to open the system.