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　　In the steel surface treatment process, the high-speed rotating impeller is used to throw the steel shot, steel sand or iron shot out of the surface of the part to hit the surface of the part at high speed, so as to remove the oxide layer on the surface of the part. At the same time, the steel shot or iron shot hit the surface of the part at high speed, resulting in the distortion of the lattice on the surface of the part, so as to increase the hardness of the surface. Shot blasting is a method to strengthen the surface of the part, in addition, it has light The function of decoration and deburring. Shot blasting is often used to clean the surface of casting or parts requiring surface strengthening treatment. Shot blasting cannot be used for surface treatment of thin parts with small thickness

　　General steel shot steel sand regular shape, several heads up and down left and right together, high efficiency, small pollution

　　Both steel shot and steel sand can clean and decontaminate the workpiece. The purpose is to prepare for the next process, i.e. to ensure the roughness requirements of the next process, and also to ensure the surface consistency. The steel shot has a strengthening effect on the workpiece, and the steel sand is not obvious

　　Shot peening is almost used in most areas of machinery, such as shipbuilding, auto parts, aircraft parts, gun tank surfaces, bridges, steel structures, steel plates, pipes, etc