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What are the surface treatment methods of stainless steel?


Nowadays, more and more stainless steel is used for decoration in daily life. Do you know how to turn an ordinary stainless steel plate into a beautiful stainless steel decorative plate with various colors? What has it gone through to present such a beautiful side. Let me explain it to you!!!

If you want to become a beautiful stainless steel decorative plate, surface treatment is very important, including wire drawing, mirror, sandblasting, titanium plating, etching, embossing and so on. These are common stainless steel surface treatment methods, which can basically complete most of the requirements of stainless steel decoration.

wire drawing

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The surface of the stainless steel wire drawing surface treatment is Matt. If you look carefully, there is a trace of texture on it, but you can't feel it It is more wear-resistant than ordinary bright stainless steel. The drawing process will lose the thickness of the stainless steel plate to a certain extent, generally 0.1 ~ 0.2mm. The stainless steel wire drawing plate will leave obvious fingerprints when it is often touched by hand, which needs to be scrubbed regularly. There are also several kinds of textures formed by stainless steel wire drawing, such as straight lines, random lines, ripples and threads.

1. Stainless steel wiredrawing straight lines are usually formed on the surface of stainless steel with a cleaning cloth or a stainless steel brush, and different thicknesses of lines can be obtained by changing the diameter of the steel brush. The processing process of wire drawing plate can eliminate scratches and the like that may appear on the stainless steel plate, and the processed stainless steel wire drawing straight lines are also very beautiful as decorative plates.

2. Stainless steel wire drawing is a kind of irregular and obvious matte wire pattern obtained by moving and rubbing the stainless steel plate back and forth, left and right under the high-speed copper wire brush.

3. Stainless steel thread is a small motor with a round felt on the shaft, which is fixed on the table top. By using the rotation of the felt and the linear movement of the carriage, a thread pattern with the same width is rotated on the stainless steel surface.


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The manufacturing principle of mirror stainless steel plate is to polish the raw material of stainless steel plate on its surface with polishing liquid through polishing equipment, so that the surface of stainless steel plate is more flat and the brightness can be as clear as a mirror. Common mirror stainless steel is divided into 6K, 8K and 10K. It is generally ordinary polishing, ordinary 6K, fine grinding 8K, super fine grinding 10K effect. Generally, the same thickness has no great difference, and the 10K mirror is brighter; The thicker the thickness, the worse the effect and the higher the processing cost.



Sandblasting plate refers to the use of zirconium beads to process the plate surface through mechanical equipment, so that the plate surface presents a fine bead sand surface, and through a complex process to achieve a variety of colors on the sandblasting plate surface. The manufacturing process of stainless steel sandblasting plate is not to simply coat a layer of colorant on the surface of stainless steel sandblasting plate to produce colorful colors, but to be realized through a very complex process. The method used is mainly acid bath oxidation coloring method, so that a transparent chromium oxide film is formed on the surface of the stainless steel sandblasting plate. After the light is irradiated on it, different colors will be produced due to different film thicknesses. The whole process of color processing stainless steel sandblasting plate includes two steps: coloring treatment and hard coat treatment

Titanium plating

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It is also called stainless steel titanium / zirconium coating. In a vacuum container, an ionic film of titanium / zirconium compound is formed on the surface of stainless steel. The film can not fade in outdoor environment for a long time. Principle of titanium plating: in a high-temperature, vacuum titanium gold furnace, titanium and zirconium metals ionize metal or alloy vapor by glow discharge of inert gas. Ions are accelerated by an electric field and deposited on a negatively charged stainless steel plate to form a rich and colorful metal.


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Stainless steel etching process is a chemical method that uses the strong oxidation of ferric chloride to etch various patterns on the surface of stainless steel. After etching, the stainless steel can be locally plated with gold, galvanized, patterned, brushed, etc. Stainless steel etching process flow: Cleaning - roll coating - exposure - Development - etching - film stripping - Cleaning - detection. Etching usually refers to photochemical etching, which means that after plate making, exposure and development of stainless steel, the protective film will be removed from the area of stainless steel that needs to be etched. During etching, the stainless steel will be contacted with chemical solution, and two positive patterns will be used to dissolve corrosion through chemical grinding from both sides, forming concave convex or hollow shaped effects.



Stainless steel embossed plate is a place where concave and convex patterns are applied on the surface of the steel plate, which is used for places requiring smoothness and viewing. Embossing rolling is carried out with patterned work rolls, which are usually processed with erosive liquid. The concave convex depth on the plate varies according to the pattern, and is about 20-30 microns. The main materials are 201, 202, 304, 316 and other stainless steel plates. The general specifications are 1000 * 2000mm, 1219 * 2438mm, 1219 * 3048mm; It can be opened to an indefinite length or embossed in a whole roll, with a thickness of 0.3mm ~ 2.0mm. Main advantages: durable, durable, wear-resistant, strong decorative effect, beautiful vision, excellent quality, easy to clean, maintenance free, resistant, pressure resistant, scratch resistant and no hand prints.

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