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利用 DJS-2 92型恒电位仪测定碳钢于各种酸中的阳极极化曲线 ,以比浊定量法测定酸雾挥发量 ,以重量法测定金属腐蚀速度 .通过缓蚀剂的浓度、实验温度对各种酸的缓蚀效率影响 ,以及铁离子对酸洗速度影响等各种因素的实验考察 ,研究了一种复合型高效酸洗缓蚀剂 .这种多功能高效缓蚀剂不仅适用于硫酸酸洗 ,也适用于盐酸及硝酸酸洗 ,并具有抑雾作用强 ,耗酸量低 ,酸洗速度快 ,无过腐蚀现象等优点 ,缓蚀效率可达 96% .
The anodic polarization curve of carbon steel in various acids was determined by DJS-2 92 Potentiostat, the volatile amount of acid mist was measured by turbidimetric method, and the metal corrosion rate was measured gravimetrically.By the concentration of inhibitor, Temperature on the corrosion inhibition efficiency of various acids, as well as the impact of iron ions on the pickling speed and other factors in the experimental study of a composite high-efficiency pickling corrosion inhibitor. This multifunctional corrosion inhibitor is not only effective In sulfuric acid pickling, but also for hydrochloric acid and nitric acid pickling, and has strong anti-fog effect, low acid consumption, pickling speed, no corrosion, etc., corrosion inhibition efficiency up to 96%.