For various types of stainless steel tubes, the processing methods vary slightly. A strong stainless steel tube manufacturer can adopt specific processing techniques tailored to different types and series to achieve aesthetic improvements and enhanced performance. Below, Debang Stainless Steel Tube, a stainless steel tube processing factory, introduces two processing methods for 304 stainless steel tubes: 1. Etching Method What is the "Etching Method"? It is a surface processing technique where a resistant acid film is printed on the surface of stainless steel using a silk screen. After applying a ferric chloride solution for etching, artistic patterns are created. The process flow for etching on stainless steel products: Stainless Steel Products → Silk Screening → Etching → Alkaline Treatment → Oxidation Coloring → Finished Product. 2. Spraying Method What is the "Spraying Method"? It involves using the pigment particles ejected after silk screening to create an apple peel-like surface on stainless steel, then forming artistic patterns. The process flow for spraying on stainless steel products: Stainless Steel Products → Silk Screening → Etching → Alkaline Treatment → Silk Screening → Oxidation Coloring → Alkaline Treatment → Finished Product. During processing, the stainless steel chemical coloring method used is not made from pigments or dyes. Instead, stainless steel is soaked in a heated concentrated chrome "Cr2(SO4)3" solution, followed by chemical coloring. The characteristic of this method is its good resistance to food contact. The inks used in processing have strong acid resistance and can produce special performance CV sulfurized inks during general use and treatment. When stamping stainless steel products, the original "direct stamping" and "stretching" methods are generally used. Stamping machines are used to stamp stainless steel products. If the hardness of the stainless steel material is below 1/2, stretching and bending stamping methods are usually employed. For materials with a hardness above 1/2, direct stamping methods are typically used.
