钢铁制品的酸浸去除轧制铁鳞以及换热设备酸洗除锈除垢时有Fe~(3+)产生.通过恒电位法和失重法研究了含Fe~(3+)的酸液对钢铁的腐蚀作用及其抑制,结果表明:Fe~(3+)的存在会促进钢铁的腐蚀,一定结构的硫脲衍生物和阴离子表面活性剂之间存在协同效应,能有效地抑制氢离子放电的阴极过程和Fe~(3+)还原的阴极过程,从而抑制金属的腐蚀. Iron (3+) production by acid leaching of iron and steel products during the leaching of iron scales and pickling descaling of heat exchange equipment was studied. The results show that the existence of Fe 3+ promotes the corrosion of steel, and the synergistic effect between certain thiourea derivatives and anionic surfactants can effectively inhibit the hydrogen ion discharge Of the cathode process and Fe ~ (3 +) reduction of the cathode process, thereby inhibiting the corrosion of metals.