氮化件的非氮化面的防护,一般采用镀锡、镀铜、镀镍和镀青铜等方法。这些方法,固然有优点,但对于已经镀完,在生产中局部掉了镀层的零件,特别是对于有些局部镀难以实现的零件。都需要有补救的防护方法,这就使氮化前涂膏防护变得重要了。我厂氮化历史较长。历年来虽在局部涂料防护氮化上做了一些工作,但是没有作为一种工艺应用于固定零件,也没有完整的防氮化工艺资料。近几年来,为了完成某种产品的生产 Nitride non-nitrided surface protection, the general use of tin, copper, nickel and bronze plated and other methods. Although these methods have some advantages, they are not suitable for partially coated parts that have already been electroplated, especially in parts that are difficult to achieve with partial plating. Both require remedial protection methods, which makes pre-nitrided paste protection important. I plant a long history of nitriding. Over the years, although some work has been done on the protective and nitriding of partial coatings, it has not been applied as a process to fixed parts and there is no complete anti-nitrogen process information. In recent years, in order to complete the production of a product