Sandblasted black corundum

Chemical composition

Scope of use (purpose)

Black corundum is widely used in the surface treatment industry, which can make various surface treatment processes smoother, and can be divided into the following categories:

1. Surface processing: metal oxide layer, carbide black skin, metal or non-metal surface rust removal, such as gravity die-casting mold, rubber mold oxide or release agent removal, ceramic surface black spots, uranium color removal, painting Rebirth.

2. Beautification processing: all kinds of gold, K gold jewelry, extinction or matte treatment of precious metal products, matte processing of crystal, glass, corrugated, acrylic, and other non-metallic surfaces, and can make the surface of processed objects into a metallic luster.

3. Etching processing: jade, crystal, agate, semi-precious stones, seals, elegant stones, antiques, marble tombstones, ceramics, wood, bamboo etc.

4. Pretreatment processing: Teflon (TEFLON), PU, ​​rubber, plastic coating, rubber roller (ROLLER), electroplating, metal spray welding, titanium plating and other pretreatments to increase surface adhesion.

5. Burr processing: removal of burrs from bakelite, plastic, zinc, aluminum die-casting products, electronic parts, magnetic cores, etc.

6. Stress relief processing: stress relief processing for aerospace, national defense, and precision industry parts, rust removal, paint removal, matting, and renovation.

7. Electronic parts processing: matte surface and etching of silicon chips, removal of impurities on the back of wafers, overflow glue of electronic parts packaging, removal of printed characters on the surface of finished products, cleaning of ceramic electric heating

8. Mold processing: sandblasting of the general mold surface, matte surface treatment after mold bite, wire cutting mold, glass mold, tire mold, conductive rubber mold, shoe mold, bakelite mold, electroplating mold, button mold, plastic products mold.

9. Processing of large workpieces: large workpieces such as oil tanks, chemical tanks, ship hulls, copper structures, metal houses, containers, automobile industries, etc., rust removal, paint removal, maintenance, and automatic matte treatment of large flat glass.