What does shot blasting mean? Shot blasting is actually a mechanical surface treatment process for metal workpieces. So what processes are shot blasting mainly used in? The following Henan Houming Steel Plate Manufacturer will give you a detailed introduction to the shot blasting mechanical process.
What does shot blasting mean?
1. Shot blasting service is the name of a mechanical surface treatment process. Similar processes to shot blasting include sand blasting and shot peening. Shot blasting is a cold treatment process, which can be divided into shot blasting cleaning and shot peening strengthening. Shot blasting cleaning literally means to remove impurities such as oxide scale on the surface of the steel plate to improve the appearance quality; shot peening strengthening is to use high-speed projectiles (60-110m/s) to continuously impact the surface of the workpiece to be strengthened, forcing the target surface and surface layer (0.10-0.85mm) to undergo the following changes during cyclic deformation: microstructure modification; non-uniform plastic deformation of the outer surface layer introduces residual compressive stress, and the inner surface layer produces residual tensile stress; the outer surface roughness changes (Ra Rz).
2. Shot blasting can make the surface of steel structure parts reach a certain roughness, make steel structure parts beautiful, or change the welding tensile stress of the workpiece into compressive stress, and improve the service life of the workpiece. By improving the roughness of the workpiece surface, the adhesion of the paint film of the subsequent painting of the workpiece is also improved.
3. Shot blasting This steel plate processing technology is used in almost most fields of machinery, such as shipbuilding, auto parts, aircraft parts, gun and tank surfaces, bridges, steel structures, glass, steel plate profiles, pipeline inner and outer wall corrosion protection and even road surfaces.
Steel plate shot blasting performance: can improve the fatigue fracture resistance of materials/parts, prevent fatigue failure, plastic deformation and brittle fracture, and improve fatigue life.
In which industries is the steel plate shot blasting pretreatment process used?
1. The material is metal material, the metal surface is rusted and descaled, and the metal after shot blasting presents a uniform metallic luster and increases the surface roughness.
2. In the pre-treatment process for coating, it is necessary to increase the roughness of the structural parts and increase the adhesion of the coating.
3. Shot blasting in the stone industry and road construction industry increases roughness and friction coefficient.
4. Shot blasting is also used to remove paint, dirt and impurities from scrap metal.
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