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一个酸洗方案确定后,都希望在酸洗之前了解酸洗液的缓蚀效率,然后再进行实地酸洗,做到心中有数,以免设备和管线在清洗时受到腐蚀。这种测定在一个酸洗方案第一次使用之前尤其重要。测定后若发现酸洗液的缓蚀率有问题,腐蚀性较大,可以查找原因,甚至修改方案。酸洗液的缓蚀效率有许多种方法可以测定,但最方便的一种是失重法。本文介绍此种方法,供酸洗工作者參考。
A pickling program is determined, all hope before pickling understand the corrosion inhibition efficiency of pickling, pickling and then on-site, be aware of, so as to avoid corrosion of equipment and pipelines in the cleaning. This determination is especially important before a pickling solution is used for the first time. If found after the determination of acid corrosion inhibition rate of corrosive, corrosive, you can find the cause, or even modify the program. There are many ways to determine the corrosion inhibition efficiency of pickling, but the most convenient one is the weight loss method. This article describes this method for pickling workers reference.