The pre-treatment stage of sandblasting process refers to the treatment that should be carried out on the surface of the workpiece before it is coated or plated with a protective layer.

The quality of pretreatment before sandblasting affects the adhesion, appearance, moisture resistance, and corrosion resistance of the coating. Poor pretreatment can lead to rust continuing to spread beneath the coating, causing the coating to flake off in patches.

Sandblasting Services:

Sandblasting uses compressed air as power to form a high-speed jet beam, which rapidly喷射s the abrasive material (copper sand, quartz sand, corundum, iron sand, sea sand) onto the surface of the workpiece to be treated, causing a change in the surface appearance or shape of the workpiece.

During the sandblasting process, the main factors affecting processing efficiency and quality include the stability of air pressure, the evenness of sand ejection, operating distance, sandblasting angle and sweeping speed, the particle size or type of abrasive material, and related pre-processing and post-processing steps such as preliminary film application or subsequent anodizing and painting. Using a sandblasting machine to process can enhance productivity, improve the appearance of workpieces, reduce labor intensity, and increase product value.

Sandblasting processing applications include surface cleaning for glass molds, rubber molds, metal castings, and extruded parts; it can also refine weld seams. Furthermore, sandblasting can achieve the following: glaze the workpiece surface, remove oxidation scale from the workpiece surface, and eliminate color differences during and after the processing (castings, forgings); it can also clean large turbines, engine castings, or complex small parts.