• The process of cleaning and roughening the surface of a substrate by the impact of a high velocity sand flow. Using compressed air as a driving force, to form a high-speed jet beam spraying material to the surface of the workpiece processing needs of high-speed jet.  The outer surface of the workpiece surface appearance or shape change.
    Due to the impact of abrasive on the surface of workpiece and cutting, Workpiece the surface of a certain cleanness and different roughness, the mechanical properties of the workpiece surface is improved, improving the fatigue resistance of the workpiece increases between it and the adhesion of the coating and prolong the durability of the coating, but also conducive to coating leveling and decoration.