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Analysis of the influence of cast steel shots quality on cleaning effect

2018-11-22 14:11:53   Review:0 Click:
  Cast steel shots is the main consumable in the process of shot blasting cleaning. The wear of high-quality S230 Cast Steel Shots is a gradual process. The cast steel shots impacts the surface of the workpiece after acceleration by the shot blaster. Without a single impact, the cast steel shots produces a deformation and will fall off a layer of metal. The shape of the cast steel shots is similar to that of a football, and it is a polygon. The impact effect of one direction on the castings is equal. After many times of impact, the cast steel shots becomes smaller and smaller.

  When it is small enough, it will be sucked away for the dust collector or separated by the pellet sand separator. The brain of shot peening machine when shot peening separator is used, which illustrates its importance in the whole set of shot peening equipment. In the process of shot peening machine, the performance of shot peening separator will directly affect the cleaning efficiency and cost. The work of pellet-sand separation is to separate the impurity sand which has been knocked off from the casting and the cast steel shots which have been ground very small or broken from the normal steel pellets, so as to ensure the cleaning efficiency and reduce the wear and tear of the pellet blasting machine. Cast steel shots is the main cause of equipment wear when shot blasting machine works. Statistics show that the life of vulnerable parts will be reduced by half for every 2% increase in sand.

  The roughness of the cast surface after shot blasting cleaning is closely related to the strength and projection speed of the cast steel shot used. The larger the size of the cast steel shot, the higher the roughness of the workpiece surface, the faster the projection speed of the cast steel shot, the higher the roughness of the workpiece surface, and the surface obtained by mixing the cast steel shot with multiple sizes is better than that obtained .

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