Similarities and differences between steel shot in abrasive and cast steel shot

　　In the manufacturing industry, steel shot, as a metal abrasive, plays a role in cleaning the surface, preventing oxidation and derusting for the aviation industry, automobile industry, sandblasting, paint spraying, consumer goods manufacturing, container manufacturing, repair, casting and other industries. For the workpiece, it prolongs the service life and improves the efficiency of the workpiece.

　　What is the difference between steel shot and cast steel shot? Let's analyze it from the aspects of raw materials and manufacturing process.

　　Steel shots are made of special materials through special heat treatment. First, high-quality steel blocks are melted, and then the molten steel is sprayed with high-pressure water to form particles. The formed shots are reheated to purify and homogenize, and then quenched. The quenched shot body is dried and reheated and tempered in the furnace to achieve the applicable hardness, and the tempered steel shot is sorted into different grades of products that meet the SAE standard through a mechanical screen for shot peening equipment .

　　Cast steel shot is made of high-quality steel fragments, which are melted first, and then the molten steel is formed into small balls by high-pressure water jetting. The formed pellets are reheated to purify homogeneity and then quenched. The quenched shot body is dried in the furnace and reheated and tempered to achieve proper hardness. The tempered steel shot is sorted into 11 grades that meet the SAE standard through a mechanical screen for shot blasting equipment.

　　Both steel shot and cast steel shot are used together for surface pretreatment of castings before spraying; sand cleaning of castings; descaling of pipes, etc. There are important applications in the aerospace industry, the automotive industry, oil and gas pipelines, plant maintenance, and metal processing.

　　It can be seen that the raw materials of steel shot and cast steel shot are slightly different, the manufacturing process is basically the same, and the scope of application is also basically the same. The difference is that the hardness of the steel shot is higher, and the life of the steel shot is relatively shorter when used in the same product.