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磷化是一种化学表面处理手段,对材料能起到良好的保护作用,由于成本低、工艺简单、防蚀性能好,所以已为各行业所重视,广泛地运用于各种家用电器、仪器仪表外壳的油漆底层以及在各种污染气氛下工作的零部件。虽说工艺简单,但也存在一些令人头痛的质量问题。就我厂生产的东风1、2、3型内燃机车上的207缸套来说,有很高的清洁度要求(200mg/套),但在磷化后,缸体表面常出
Phosphating is a chemical surface treatment means, the material can play a good protective effect, due to low cost, simple process, good corrosion resistance, it has been valued by various industries, widely used in various household appliances, instruments The bottom of the instrument case’s paint and parts that work in a variety of polluting atmospheres. Although the process is simple, but there are some headaches of quality problems. As far as the 207 cylinder covers on the Dongfeng 1, 2, and 3 diesel locomotives manufactured by our factory are concerned, there is a high requirement of cleanliness (200mg / set), but after phosphating,