目前,低温镀铁已成为我国农机修理中的一项重要修复工艺.由于镀液成分的变化和合金元素的加入,镀液分析已成为急需解决的问题.简阳县机械厂对镀液分析做了一些试验.现将测定镀液中Mn~(2+)、Cr~(3+)、Al~(3+)、Ni~(2+)的方法介绍如下(测定Fe~(2+)、Fe~(3+)的方法可参阅有关电镀液分析的书籍). At present, low-temperature iron plating has become an important repair process in the agricultural machinery repair in our country.As a result of the change of the bath composition and the addition of alloying elements, the bath analysis has become an urgent problem to be solved. Some tests are as follows: The determination of Mn ~ (2 +), Cr ~ (3 +), Al ~ (3 +) and Ni ~ (2+) in the bath is described as follows ~ (3+) method can refer to the analysis of electroplating solution books).