Compared with shot blasting method

Compared with the method of shot blasting, what are the characteristics of shot blasting?

The characteristics of the shot blasting machine are as follows:
1. High cleaning efficiency, low cost, few operators, easy to realize mechanization, suitable for mass production
2. No compressed air is needed to accelerate the projectile, so there is no need to set up a powerful air compressor station, and the cleaned surface is also free of moisture
3. Poor flexibility, limited by the site, some blindness when cleaning the workpiece, easy to produce dead corners on the surface of the workpiece that cannot be cleaned
4. The structure of the equipment is complex, and there are many wearing parts, especially the blades and other parts wear fast, maintenance work hours are high, and the cost is high
5. Under normal circumstances, light and small projectile steel surface will produce surface strengthening phenomenon after projectile impact, which can increase the fatigue strength of about 50%, and its corrosion resistance is nearly doubled; the surface hardness will also increase. After the projectile impact on the surface of the steel, the internal stress of the weld can be eliminated and the surface roughness can be increased, and hidden cracks in the material can be checked. The rusty feature is not available with wet cleaning.
The characteristics of shot blasting machine cleaning are as follows:
1. Metal or non-metallic projectiles can be used arbitrarily to meet the different requirements for cleaning the surface of the workpiece
2. The flexibility of cleaning is large, it is easy to clean the inner and outer surfaces of complex workpieces and the inner wall of pipe fittings, and it is not restricted by the site.
3. The equipment structure is simple, the investment of the whole machine is low, the wearing parts are few, and the maintenance cost is low
4. It must be equipped with a high-power air compressor station. Under the same cleaning effect, the energy of the trumpet is large. In addition, the cleaned surface is prone to moisture and rust.

5. The cleaning efficiency is low, there are many operators, and the labor intensity is greater than the shot blasting machine.