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The stainless steel sandblasting process is a processing technology that uses compressed air as the power to blow different abrasives onto the surface of the stainless steel plate for surface treatment. The processed Best Price ASTM 430 Stainless Steel Sheet has a uniform surface and better aesthetics. What is the process of sandblasting when processing the stainless steel sheet?
1. Pre-treatment of sandblasting:
Before the Best Price ASTM 430 Stainless Steel Sheet is sandblasted, the surface of the stainless steel sheet should be carefully treated, which is called pre-sandblasting. Generally, in order to maintain the consistency of the appearance, color and other effects of the stainless steel plate, the stainless steel plate is treated with 8K mirror before sandblasting.
2. Selection of spray material:
Best Price ASTM 430 Stainless Steel Sheet sandblasting is usually based on glass beads, and you can also choose blasting materials such as quartz sand, iron sand, sea sand, and diamond. The thickness of the spray material is usually called the number. The higher the number, the smaller the particle size and the smoother the surface of the stainless steel plate after sandblasting. Conversely, the lower the number, the stronger the sandy feeling on the surface of the obtained stainless steel sheet. Stainless steel sandblasting is generally used between 30# and 280#.
3. Sandblasting:
The sandblasting process uses compressed air as the power source to transform the spray material into a high-speed spray beam to spray on the surface of the stainless steel plate to be treated, so that the surface of the stainless steel plate changes. Due to the impact and cutting action of the abrasive on the surface of the stainless steel plate, the surface of the stainless steel plate obtains a certain degree of cleanliness and different roughness, and also improves the mechanical properties of the stainless steel plate, thus improving the fatigue resistance of the stainless steel plate and adding the stainless steel plate The adhesion between the coating and the coating extends the durability of the stainless steel coating film and is also conducive to the leveling and decoration of the coating.
4. After sandblasting:
We are well aware that Best Price ASTM 430 Stainless Steel Sheet relies on a thin, strong and stable chromium-rich oxide film (protective film) formed on its surface to prevent oxygen atoms from continuing to penetrate and continue to oxidize, so that the stainless steel sheet can gain corrosion resistance . However, since the sandblasting is achieved by physical impact, after the sandblasting is completed, the stainless steel plate should be passivated to repair the damaged chromium-rich oxide film and restore the corrosion resistance of stainless steel!
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