What is the role of sandblasting?
Sandblasting is a surface treatment method that uses high-speed jets of abrasive particles (usually sand) to impact metal surfaces to clean, remove dirt, and improve surface quality. Its main functions include:
Rust removal: Sandblasting can effectively remove rust, oxides and other corrosion products from metal surfaces. This is important for restoring the cleanliness and shine of the metal surface, while also helping to improve the metal's corrosion resistance.
Cleaning dirt: Sandblasting can be used to clean oil, coating, paint, welding slag and other dirt on metal surfaces. This is very critical for subsequent painting, coating or welding work to ensure the effect of surface treatment.
Improved surface quality: During the sandblasting process, the impact of abrasive particles can improve the quality of the metal surface at a microscopic level. This helps to improve the roughness of the surface and provide better adhesion for subsequent painting, spraying and other processes.
Pretreatment process: Sandblasting is a pretreatment step for many metal surface treatment processes, such as spraying, electroplating, coating, etc. Sandblasting can make the surface easier to bond with coatings or other materials, improving adhesion.
Remove scratches and blemishes: Sandblasting can remove some scratches, blemishes and unevenness from a metal surface, leaving it smoother and more even.
Improve mechanical properties: For some metal parts that require mechanical processing, sandblasting can increase their surface hardness and strength and improve their mechanical properties.
Overall, sandblasting is a versatile surface treatment method that works on a variety of materials, including metals, plastics, ceramics, and more.
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