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The whole process of sandblasting of stainless steel plate

by:Topson     2022-04-15

As we all know, stainless steel plate has smooth surface, high plasticity, toughness and strength, corrosion resistance, high temperature resistance and many other characteristics.

Stainless steel sandblasting decorative plate process is a surface treatment process in which compressed air is used as the power to blow various abrasives onto the surface of the stainless steel plate.

The processed stainless steel plate has a uniform surface, fine texture and beautiful appearance.

Sandblasting pretreatment

Before sandblasting, the surface of the stainless steel plate should be carefully treated, that is, sandblasting pretreatment.

Generally speaking, in order to maintain the consistency of the appearance and color of the stainless steel plate, 8K mirror surface treatment should be carried out before sandblasting.

Selection of spraying materials

Stainless steel plate sandblasting is generally dominated by glass beads, quartz sand, iron sand, sea sand, diamond and other materials can also be used.

The larger the number, the smaller the particle size, and the smoother the surface of the stainless steel plate after sandblasting. On the contrary, the smaller the number of stainless steel plates, the stronger the sandy feeling of the surface. Stainless steel sandblasting is generally used between 30 and 280.


The sandblasting process uses compressed air as the power source to convert the spray material into a high-speed spray beam, which is sprayed on the surface of the stainless steel plate to be treated, thereby changing the surface of the stainless steel plate .

Due to the impact and cutting effect of abrasives on the surface of the stainless steel plate, the surface of the stainless steel plate can obtain a certain degree of cleanliness and different roughness, which improves the mechanical properties of the stainless steel plate. Therefore, the fatigue resistance of the stainless steel plate is improved, the adhesion between the stainless steel plate and the coating is increased, the durability of the stainless steel film is prolonged, and the flatness of the coating is also conducive to decoration.

After sandblasting

We know that the stainless steel plate forms a very thin and solid stable chromium-rich oxide film (protective film) on its surface to prevent oxygen atoms from continuing to penetrate , Continue to oxidize, so that the stainless steel plate can obtain corrosion resistance.

But since sandblasting is achieved by physical impact, after sandblasting, the stainless steel plate should be passivated to repair the damaged chromium-rich oxide film and restore the corrosion resistance of stainless steel!

Sandblasting creates a low profile, beautiful and durable stainless steel sheet.

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