The work of using compressed air to push the abrasive to the surface of the workpiece for treatment is called sandblasting, which is often said that shot blasting cleaning and shot blasting strengthening treatment.
Because in the early days of shot blasting technology, sand was the only abrasive that could be used, so at that time and for quite a long time afterwards, shot blasting was always called sandblasting. Among all kinds of surface pretreatment methods, sandblasting (shot blasting) has the most thorough effect, the strongest adaptability and the widest application range. Cleaning steel surfaces is the fastest and most thorough. Sandblasting can clean surfaces that are usually difficult to clean, and some special tools can be used to clean the inner surface of the pipe with the lowest cost of sandblasting. Sandblasting can make the surface to be cleaned at the same time to obtain the required cleanliness and make the surface to get a certain roughness, improve the adhesion of the coating on the basic surface of two effects.
Brown aluminum oxide
No matter how good the paint is, it can not be attached to the surface of the workpiece without surface treatment for a long time. The role of surface pretreatment is to clean the surface and create the required roughness on the surface to "lock in" the coating.
After the surface of the sandblasted workpiece is coated with a good performance of industrial paint, the coating life can be more than 3.5 times higher than the same quality coating on the surface treated by other methods. Another advantage of sandblasting (shot blasting) is that the surface roughness can be determined in advance according to the requirements and is easily achieved during the cleaning process.
Sandblasting special brown corundum abrasive has moderate hardness, high packing density, no free silica, heavy ratio and good toughness. Brown aluminum oxide is the ideal "environmental protection" type sandblasting material, widely used in aluminum, copper profile glass, washed jeans precision mold and other fields.
