What is sandblasting?
The process of cleaning and roughening the surface of the substrate by the impact of high-speed sand flow. Using compressed air as the power to form a high-speed jet beam to spray the spray material (copper ore sand, quartz sand, emery, iron sand, Hainan sand) to the surface of the products to be treated at a high speed, so that the appearance or shape of the outer surface of the product surface changes. Due to the impact and cutting effect of the abrasive on the surface of the product, the surface can obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the product surface are improved, thus improving the fatigue resistance of the product, increasing its and coating The adhesion between the layers prolongs the durability of the coating film and also facilitates the leveling and decoration of the paint.
Why use sandblasting?
1. Product coating, product bonding pretreatment sandblasting can remove all the dirt from the surface of the product, such as rust skin, and establish a very important foundation pattern on the surface of the product (usually called the hairy surface), and can achieve different degrees of roughness by swapping abrasives of different grain sizes, such as the abrasives of Feizhan abrasives, greatly improving the bonding force between the product and the coating and plating materials. Or make the bonding parts bond more firmly and better quality.
2. Casting pieces of rough surface, heat treatment after the product cleaning and polishing sandblasting can clean the casting and forging, heat treatment after the product surface of all the dirt (such as oxidation, oil and other residues), and the product surface polishing to improve the product finish, can make the product to reveal a uniform and consistent metal original color, so that the product appearance more beautiful.
3. Machined parts burr cleaning and surface beautification sandblasting can clean up tiny burrs on the surface of the product and make the surface of the product more flat, eliminating the harm of burrs and improving the grade of the product. And sandblasting can make very small rounded corners at the junction of the product surface, so that the product appears more beautiful and more precise.
4. Improve the mechanical properties of the parts. After sandblasting, the mechanical parts can produce uniform and fine concave and convex surfaces on the surface of the parts, so that the lubricating oil can be stored, thereby improving the lubricating conditions, reducing noise and improving the service life of the machine.
5. For some special-purpose product, sandblasting can achieve different reflection or matt at will. Such as the grinding of stainless steel product and plastics, the polishing of jade articles, the mattization of the surface of wooden furniture, the pattern of frosted glass surfaces, and the textured processing of cloth surfaces.
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