Anti-corrosion steel pipe surface mirror bright treatment method: according to the complexity of anti-corrosion steel pipe products and user requirements, mechanical polishing, chemical polishing, electrochemical polishing and other methods can be used to achieve mirror gloss. There are several coloring methods for anti-corrosion steel pipes:

1. Chemical oxidation coloring method: the color of the film formed by chemical oxidation in a specific solution. There are dichromate method, mixed sodium salt method, sulfurization method, acid oxidation method and alkaline oxidation method. In general, INCO is used more, but if you want to ensure the color of a batch of products are consistent, you must use a reference electrode to control.

2. Electrochemical oxidation coloring method; it is the color of the film formed by electrochemical oxidation in a specific solution.

3. Ion deposition oxide coloring method: the stainless steel workpiece is placed in a vacuum coating machine for vacuum evaporation plating. For example: titanium-plated watch cases and watch bands are generally golden yellow. This method is suitable for mass product processing. Because of the large investment and high cost, small batch products are not economical.

4. High temperature oxidation coloring method: It is to immerse the workpiece in a specific molten salt to maintain a certain process parameter, so that the workpiece forms a certain thickness of oxide film, and presents a variety of different colors.

5. Gas phase cracking coloring method. More complex, less used in industry