What does a sandblasting worker do in a car factory?

Mainly responsible for sandblasting products. The process of cleaning and roughening the substrate surface by the impact of high-speed sand flow. Using compressed air as power, a high-speed jet beam is formed, and spraying materials (copper ore, quartz sand, emery, iron ore and Hainan sand) are sprayed on the surface of the workpiece to be treated at high speed.

The appearance or shape of the outer surface of the workpiece surface is changed. Due to the impact and cutting action of abrasive on the workpiece surface, the workpiece surface has a certain cleanliness and different roughness, which improves the mechanical properties of the workpiece surface, thus improving the fatigue resistance of the workpiece, increasing the adhesion between the workpiece and the coating, prolonging the durability of the coating, and being beneficial to the leveling and decoration of the coating.

Sand blasting is:

Pretreatment stage refers to the treatment of workpiece surface before spraying or spraying protective layer.

The quality of pretreatment before sandblasting affects the adhesion, appearance, moisture resistance and corrosion resistance of the coating. If the pretreatment work is not done well, the corrosion will continue to spread under the coating, resulting in the coating falling off in pieces.

After careful cleaning of the surface and simple cleaning of the workpiece, the life of the coating is 4-5 times that of the exposure method. There are many methods for surface cleaning, but the most commonly accepted methods are solvent cleaning, acid cleaning, hand tools and electric tools.