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機器製造工業中爲了防止金屬銹蝕,採用許多防銹方法,鋼鐵的磷化處理便是其中之一。磷化是在鋼鐵表面生成一層不溶性磷酸鹽的薄膜,這種薄膜在一般大氣條件下有很好的防銹效能,如果再經上油噴漆等處理,防銹能力更可以提高。磷化處理的特點是操作簡單,不受物件的形狀繁簡和體積大小的限制,而且成本低廉,生產率高。磷化的原料是一種磷酸二氫錳鐵鹽的混合物,蘇聯名稱爲(瑪日夫鹽)。這種鹽
In order to prevent the metal from rusting in the machinery manufacturing industry, many anti-rust methods are used, and the phosphating treatment of steel is one of them. Phosphating is the formation of a layer of insoluble phosphate on the steel surface of the film, this film in general atmospheric conditions have good anti-rust performance, and then by painting and other oil processing, anti-rust ability can be improved. Phosphating treatment is characterized by simple operation, not subject to the complexity of the shape and size of objects, and low cost, high productivity. The raw material for phosphating is a mixture of ferric dihydrogen ferromanganese, the Soviet Union as (Mariv salt). This salt