1. Sandblasting: sandblasting uses compressed air as the power to form a high-speed jet beam to spray the sprayed materials (copper ore, quartz sand, carborundum, iron sand, sea sand) to the surface of the workpiece to be treated at high speed, so as to change the appearance or shape of the workpiece surface.
2. Sanding: sanding is a process that makes the object with smooth surface become unsmooth and makes light shine on the surface to form a diffuse reflection. For example, frosted glass makes it opaque, and frosted leather clothing makes its surface less bright than ordinary leather.
2、 Different effects
1. Sand blasting: the impact and cutting effect of abrasive on the surface of the workpiece makes the surface of the workpiece obtain a certain degree of cleanliness and different roughness, and improves the mechanical properties of the surface of the workpiece. Therefore, it improves the fatigue resistance of the workpiece, increases the adhesion between it and the coating, prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating.
2. Sanding: use emery, silica sand, pomegranate powder and other abrasives to grind the glass mechanically or manually to make a uniform and rough surface. You can also use hydrofluoric acid solution to process the surface of glass and other objects, and the resulting products become frosted glass and other products. The sealing performance is better after sanding.
In beauty, skin scrub is also a common method. It refers to gently massaging the skin with some small granular beauty substances.
3、 Different uses
1. Sand blasting: metallurgy, ink silicon carbide, glass and glass products, enamel, cast steel, water filtration, bubble alkali, chemical industry, sand blasting and other industries.
2. Frosting: glass, leather, skin, etc.
