Shot Blasting Steel Shot

LONGTAI Steel shots are widely used for descaling and descaling before the coating of steel workpieces. In this case, centrifugal shot blasting equipment is often used. The shape of the ball and the low hardness make the steel shots do not cause excessive wear on the equipment. It has improved the surface adhesion of the coating after painting, and has very significant economic benefits. It is the most advanced and ideal blasting and strengthening metal abrasive rust removal at home and abroad.

The cleaning effect of the steel shot is obvious, and the quality of the speed gauge of the steel shot can affect the surface treatment effect of the workpiece. The following is a brief description of the effect of shot peening on the workpiece.

Choose a reasonable steel shot diameter and shot peening pressure; after the large-diameter steel shot peening is strengthened, the smaller steel shot is covered with a low pressure once to achieve better surface roughness. The surface of the parts after shot peening should be slightly polished, and the surface metal removal should be controlled during grinding. In this way, the reinforcing effect of the shot peening is not impaired, and the surface roughness can be improved.

Steel shot peening will cause the part to be plastically deformed by the spray surface, which will change the surface roughness of the part. Surface roughness is a microscopic geometric error, also known as microscopic unevenness. Surface roughness, like surface waviness and shape error, are geometric errors of the part. Surface roughness has an important influence on the performance of machine parts.

The effect of steel shot peening on the surface roughness of the material is usually in the range of Ra 0.6 to 20 mm. Under the condition that the process parameters are not changed, the higher the original surface roughness of the material, the larger the Ra value after shot peening. The production practice proves that under normal circumstances, the surface roughness before spraying is below 6.3mm, and the shot peening can improve or maintain the original surface roughness. If the original surface roughness is above 6.3mm, the surface roughness after shot peening is reduced.