Why choose Dalian sand blasting process

The quality of pretreatment before sand blasting and shot blasting in Dalian affects the adhesion, appearance, moisture resistance and corrosion resistance of the coating, because the best coating (layer) is adhered to the carefully cleaned surface. If the pretreatment is not done well, the corrosion will continue to spread under the coating, causing the coating to fall off in pieces. After careful cleaning of the surface and the general simple (manual use of sandpaper or brush) cleaning of the workpiece, the coating is compared with the exposure method, and the service life can be 4-5 times different.

There are many methods of surface cleaning, but the most commonly accepted methods are: A. solvent cleaning B. pickling C. hand tools D. power tools. It uses compressed air as power to form a high-speed jet beam, and sprays spraying materials (copper ore, glass sand, iron sand, brown corundum / emery, etc.) to the surface of the workpiece to be treated at high speed, so as to change the appearance of the outer surface of the workpiece. Due to the impact and cutting effect of abrasive on the workpiece surface, the workpiece surface can obtain certain cleanliness and different roughness, and the mechanical properties of the workpiece surface can be improved, Therefore, it improves the fatigue of the workpiece, increases the adhesion between it and the coating, prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating.

Increase the degree of fatigue resistance, prolong the service life of products, improve the stress and corrosion resistance (such as shot peening strengthening of aircraft engine turbine, blade, shaft, landing gear, various spring gears, hydraulic parts, etc.), form circuit blocks, plastic sealing, cleaning and deburring before tin on pipes, shot peening strengthening and finishing processing of medical machinery, papermaking machinery, textile machinery and various hardware products, various non-ferrous metal pipe fittings and precision castings.

After the automobile surface is sprayed, there may be small defects on the surface of the paint film, such as coarse grain, sandpaper mark, flow mark, anti whiteness, orange peel, etc. in order to make up for these defects, grinding and polishing treatment is usually carried out after spraying, so as to improve the mirror effect of the paint film and meet the requirements of brightness, smoothness and beauty.