一、前言金属在涂漆、磷化、电镀、热浸镀等涂镀处理之前以及金属在塑性加工过程中都需要进行除锈(氧化皮)。过去金属表面的除锈大都采用盐酸或硫酸酸洗除锈,这种工艺一直持续到现在仍在工业应用。直到近年来,一些生产厂在酸溶液中加入缓蚀剂。在一定程度 First, the introduction of metal coating, phosphating, electroplating, hot dip coating before plating and metal in the plastic processing needs rust (scale). Past the metal surface rust mostly hydrochloric acid or sulfuric acid pickling rust, this process has continued until now is still industrial applications. Until recently, some manufacturing plants added corrosion inhibitors in acid solutions. To a certain extent