Steel pellets are made of high-quality steel scraps. First, they are melted, and then the molten steel is formed into small balls by high-pressure water eruption. The pellets are reheated to purify the homogenization, and then are quenched. The quenched shot body is dried in the furnace and heated and tempered from the beginning to achieve the proper hardness. The tempered shot body is then sorted through a mechanical screen into 11 grades conforming to the SAE specification for use in shot blasting equipment.
Products of different sizes and hardness are used in different processes, such as surface strengthening.
1. Steel shot is widely used for peeling and derusting of steel workpiece before coating, in which case centrifugal shot blasting equipment is often used. Ball shape and small hardness make the steel ball will not cause great wear to the equipment.
2. Steel shot is also widely used in the casting industry. When the workpiece is removed from the mold, the sand on the surface of the workpiece is removed with steel shot. When the steel ball is used with the appropriate equipment, because it is durable, it is certainly the best abrasive for your appearance cleaning.
3. Industrial applications: aviation industry, automobile industry, sandblasting/painting dealers, consumer goods manufacturing, container manufacturing/repair, casting, granite/stone cutting and shipbuilding and ship repair, shopkeepers, oil and gas pipelines, plant maintenance and metal processing. Customary process range: surface pretreatment before spraying; Casting sand cleaning; Pipe descaling, etc.
When the outlet pressure is the same, the nozzle shape is the same, the nozzle size is the same, the abrasive size is the same, the cut and angular medium power is higher than the circular medium. But if the sharp-shaped abrasive is more or the shape of abrasive is irregular, the friction resistance between abrasive and abrasive will increase, but the abrasive ejection-velocity decreases, the kinetic energy of a single abrasive decreases, resulting in the sand blasting power decline. Therefore, in field use, sharp abrasives are often mixed with spherical abrasives. The spherical abrasives are like lubricants to ensure the kinetic energy of a single abrasive.
