5 kinds of coloring methods of anti-corrosion steel pipes are introduced
Release time:
07 Jun,2023
Anti-corrosion steel pipe surface mirror bright treatment method: according to the complexity of anti-corrosion steel pipe products and user requirements of different situations can be used respectively mechanical polishing, chemical polishing, electrochemical polishing and other methods to achieve a mirror gloss. Anti-corrosion steel pipe coloring methods are as follows:
5 kinds of coloring methods of anti-corrosion steel pipes are introduced
Anti-corrosion steel pipe surface mirror bright treatment method: according to the complexity of anti-corrosion steel pipe products and user requirements of different situations can be used respectively mechanical polishing, chemical polishing, electrochemical polishing and other methods to achieve a mirror gloss. Anti-corrosion steel pipe coloring methods are as follows:
1: chemical oxidation coloring method; is in a specific solution, through chemical oxidation to form the color of the film, dichromate method, mixed sodium salt method, sulfide method, acidic oxidation method and alkaline oxidation method. Generally "INCO method" (INCO) is used more often, but to ensure a batch of products with the same color, you must use reference electrodes to control.
2: Electrochemical oxidation coloring method; is in a specific solution, through electrochemical oxidation to form the color of the film.
3: ion deposition oxide coloring method; is the stainless steel workpiece in the vacuum coating machine for vacuum evaporation plating. For example: titanium-plated watch cases, watch bands, generally golden yellow. This method is suitable for high-volume product processing. Because of the large investment, high cost, small batch products are not cost-effective.
4: High-temperature oxidation coloring method; is in a specific molten salt, immersed in the workpiece to maintain in a certain process parameters, so that the workpiece to form a certain thickness of oxide film, while showing a variety of different colors.
5: Gas phase cracking coloring method. More complex, less used in industry.
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