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去年,我们开始搞低镍量铁基合金镀工艺,以修复在高温条件下或在腐蚀介质中工作的某些磨损零件,如某些化工机械零件、船用挂浆轴等,效果良好。铁和镍是同族元素,电极电位比较接近,较易得到铁镍二元合金镀层。铁镍合金近几年来在国外发展较快,但国外多数属装饰性镀层,含镍量较高,成本也高。我们根据工件的不同要求,采用含镍量为2～4%的合金镀层,可基本满足修复的需要。
Last year, we started to implement a low-nickel iron-based alloy plating process to repair certain wear parts that work under high temperature or in corrosive media, such as some chemical machinery parts and marine hanging pulp shafts. Iron and nickel are the same elements, the electrode potential is relatively close, easier to get iron-nickel binary alloy coating. Iron-nickel alloy in recent years the rapid development in foreign countries, but most foreign decorative coatings, nickel content is high, the cost is high. We according to the different requirements of the workpiece, the use of nickel content of 2 to 4% of the alloy coating, can basically meet the needs of repair.