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The best hardness of cast steel shot after quenching is achieved

2021-06-17 14:41:31   Review:0 Click:
  Cast steel shot is also widely used in the casting industry. When the workpiece is taken out of the mold, the sand on the surface of the workpiece is removed with cast steel shot. When cast steel shot is used with suitable equipment, because it is durable, it is definitely the best abrasive for your surface cleaning. The manufacturing process of cast steel shot is as follows: first melt high-quality steel block, then spray high-pressure water to make molten steel form particles, reheat the formed shot body to purify evenly, and then quench. Because the surface color of tempered iron shot is even blue after annealing, it is often used as cast steel shot. The service life of iron shot is only 50-400 times.

  The rust removal effect of iron shot is seriously reduced and the interests of users are seriously damaged. It's right to install steel forging shots into the shot mill according to the diameter and proportion, but it's not necessary to install the shots separately when the ball mill is installed. Since the mill cylinder is integrated, it's useless to install the shots separately, and it will still mix well when it runs. With the progress of production, the medium will wear down, It is necessary to add the ball regularly. This kind of troublesome and useless separate ball loading will affect the production. When adding the ball, it should be installed according to the size and proportion. The shape of the shot and the smaller hardness make the cast steel shot will not cause greater wear to the equipment. The quenched pellets are dried and reheated in the furnace to reach the suitable hardness.

  The tempered pellets are divided into different grades by mechanical screen. Products with different particle size and hardness are used in different processes, such as surface strengthening. Workpiece coating, workpiece bonding pretreatment sand blasting can remove all the dirt on the surface of the workpiece, and establish a very important basic schema on the surface of the workpiece, and can achieve different degrees of roughness by changing abrasive of different particle sizes, greatly improving the adhesion of the workpiece and coating, plating. Cast steel shot is used for steel plate pretreatment, generally used for rust removal before coating. There are many kinds of cast steel shot. Different cast steel shot needs different raw materials and equipment.

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