The work of using compressed air as power to push abrasives to the surface of the workpiece for treatment is called sandblasting, which is what we often call shot peening and shot peening.
Brown aluminum oxide because in the early days of shot blasting technology, sand was the only abrasive that could be used. Therefore, at that time and for a long time afterwards, shot blasting was always called sandblasting. Among various surface pretreatment methods, sandblasting (shot blasting) has the most thorough effect, the strongest adaptability, and the widest range of applications; it cleans the steel surface the fastest and most thoroughly. Sandblasting can clean surfaces that are usually difficult to clean. Some special tools can be used to clean the inner surface of pipes. Sandblasting is the lowest cost. Sandblasting can achieve the required cleanliness and a certain roughness on the surface to be cleaned at the same time, and improve the adhesion of the coating on the basic surface. No matter how good the paint is, it is impossible to adhere to the surface of the workpiece without surface treatment for a long time. The purpose of surface pretreatment is to clean the surface and create the roughness on the surface required to "lock" the coating.
After the surface of the sandblasted workpiece is coated with an industrial coating with good performance, the coating life can be more than 3.5 times longer than that of the same quality coating on the surface treated by other methods. Another advantage of sandblasting (shot blast cleaning) is that the surface roughness can be determined in advance according to requirements and can be easily achieved during the cleaning process.
The special brown aluminum oxide abrasive for sandblasting has moderate hardness, high packing density, no free silica, large specific gravity and good toughness. Brown aluminum oxide is an ideal "environmentally friendly" sandblasting material, widely used in aluminum profiles, copper profile glass, washed denim precision molds and other fields.
