Siam IKK Steel Shot
1.grain size
Steel shot, in spherical shape, is to be emplyed to be employed to blast descaling on the metal surface by heat-treatment, or foundry's desanding after casting.The finer the size of Steel Shot is, the smaller the impact load provided;and the coarser in size, the larger in impact load, resulting in prolonged blasting time, becuase of a less number of steel grains per weight, on top of te coarse formation.
The first tip of advice is selacting Steel shot, therefore, is to decide the proper size and hardness, in cosideration of such adhesive strength of scale of molding sand.