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一、前言为了防止钢铁设备腐蚀必须涂装各种防蚀涂料,而要延长涂料使用寿命和防护期限,酸洗,磷化又是涂装前必须进行的重要工序。常规的多工序酸洗和磷化方法,工序烦琐,劳动强度大,易污染环境。因此多年来各国致力于研制一种能同时完成酸洗-磷化的处理液这些酸洗-磷化二合一处理剂,除了含有磷酸,磷酸二氢盐,氧化剂外还含有缓蚀,成膜防锈和润湿作用的表面活性剂。
I. Preface In order to prevent corrosion of steel equipment must be coated with a variety of anti-corrosion coatings, but to extend the coating life and protection period, pickling, phosphating coating process is an important process must be carried out. Conventional multi-process pickling and phosphating methods, process cumbersome, labor-intensive, easy to pollute the environment. Therefore, over the years, all countries are committed to developing a pickling and phosphating treatment solution that can simultaneously complete the pickling and phosphating treatment. In addition to containing phosphoric acid, dihydrogen phosphate and oxidizing agent, these pickling and phosphating combinators also contain corrosion inhibitors and film forming Rust and wetting effect of the surfactant.