Stainless steel coloring methods are as follows:(1) ion deposition oxide or oxide. (2) High temperature oxidation method. (3) Chemical oxidation method. electrochemical oxidation method. (4) Gas phase cracking method. A brief overview of various methods is as follows: (1) Ion deposition oxide or oxide method is to place stainless steel workpieces in a vacuum coating machine for vacuum evaporation plating: for example: titanium-plated watch cases and watch straps. Usually golden yellow. This method is suitable for high-volume product processing. Because of large investment and high cost, small batch products are not cost-effective. (2) The high-temperature oxidation method is to immerse the workpiece in a specific molten salt to maintain a certain process range, so that the workpiece forms a certain thickness of oxide film and presents various colors. (3) The chemical method is to form the color of the film through chemical oxidation in a specific solution. Generally, the "inco method" is used more, but to ensure the same color of a batch of products, it must be controlled by a reference telegraph. (4) The electrochemical method is to form the color of the film through electrochemical oxidation in a specific solution, which is applied in business. (5) The gas phase cracking method is more complicated and less used in industry.
