Sand blasting is the compressed air as the power to spray sand or shot material to the surface of the material, to achieve clearance and a certain roughness. Shot blasting is the method of centrifugal force generated when the shot material is rotated at high speed, impacting the surface of the material to achieve clearance and a certain roughness.
Shot peening is a method to remove metal rust by using compressed air or mechanical centrifugal force as power and friction.
Shot peening is used to remove the thickness of not less than 2mm or do not require to maintain the accurate size and profile of the medium and large metal system
Oxide skin, rust, molding sand and old paint film on casting and forging parts. The effect of shot peening on surface treatment is obvious. But for the workpiece with oil pollution, shot peening, shot peening can not completely remove oil pollution.
Sandblasting is also a mechanical cleaning method, but sandblasting is not shot blasting, sandblasting is sand such as quartz sand, shot blasting is used with metal pellets. Among the existing surface treatment methods, the best cleaning effect is sandblasting. Sand blasting is suitable for cleaning the workpiece surface with high requirements. In the repair and shipbuilding industry, generally speaking, shot blasting (small steel shot) is used in the steel plate pretreatment (rust removal before coating); Sand blasting (repair, shipbuilding industry is used in mineral sand) is used in the molding of the ship or section, the role is to remove the old paint and rust on the steel plate, and re-paint. In the repair and shipbuilding industry, the main function of shot blasting and sandblasting is to increase the adhesion of steel plate painting.
Post time: Nov-24-2022
