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How to prevent the surface of stainless steel sanitary pipe fittings from blackening

It is a 1.0mm uniform and dense ferric oxide film that is firmly bonded to the metal matrix. The film is blue-black, so it is generally called bluing or blackening. Stainless steel pipe manufacturers

The blackening treatment of stainless steel sanitary pipe fittings is often used to prevent rust or increase the appearance quality. Saponification - oil immersion - packing. Its bluing operation is generally divided into three stages.

1 The preparation stage of stainless steel sanitary pipe fittings is mainly to remove oil stains, rust, oxide scale, salt residue, etc. on the surface of stainless steel pipes, so as to prepare for surface activation into high-quality oxide films, mainly including boiling, chemical degreasing, pickling and stainless steel pipes. card, etc. stainless steel pipe factory

2. In the gasification treatment stage of stainless steel sanitary pipe fittings, put the prepared workpieces into the blackening solution heated to the set temperature, and stay for a certain period of time to make the surface of the stainless steel pipe form the required oxide film layer. temperature and outlet temperature.