Sand Blasting Process

The sandblasting process is divided into pre-treatment stage and sandblasting stage. The quality of the pre-treatment stage of the sandblasting process is directly related to the later work. Only when the cleaning work is done in place, can the adhesion, appearance and corrosion resistance of the coating be improved.Pre-treatment stageThe pre-treatment stage of the sandblasting process refers to the treatment that should be carried out on the surface of the workpiece before the workpiece is sprayed and sprayed with the protective layer.The quality of the pre-treatment of the sandblasting process affects the adhesion, appearance, moisture resistance and corrosion resistance of the coating. If the pre-treatment work is not good, the rust will continue to spread under the coating, making the coating fall off in pieces. After careful cleaning of the surface and the general simple cleaning of the workpiece, the coating is compared with the exposure method, the life can be 4-5 times different. There are many ways to clean the surface, but the most common methods are accepted: solvent cleaning, pickling, hand tools, power tools.Sandblasting stageSandblasting is the use of compressed air as the power to form a high-speed jet beam, the jet material and other high-speed jet to the surface of the workpiece to be treated, so that the surface of the workpiece surface changes, due to the impact and cutting effect of abrasive on the surface of the workpiece, so that the surface of the workpiece to obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece are improved. The sandblasting process is compared with other pre-treatment processes1) Sand blasting process is the most thorough, the most universal, the most rapid, the most efficient cleaning method.2) Sandblasting process can be arbitrarily selected between different roughness, and other processes can not achieve this, manual grinding can play rough surface but the speed is too slow action, chemical solvent cleaning is to clean the surface is too smooth is not conducive to coating bonding.