Sandblasting material

Black corundum

Black corundum

Al2O3

95.00%

SiO2

0.72%

Fe2O3

1.00%

TiO2

3.00%

CaO

0.30%

 

Mesh No.

#24

#36

#46

#60

#80

#100

#120

#150

#180

#220

Micron

740

480

326

250

180

150

125

100

83

68

 

Black corundum: a corundum in black. It is a new type of environmentally friendly material.
 
Applied disciplines: mechanical engineering (a subject); abrasive abrasives (two subjects); abrasives (three subjects)
 
It has the characteristics of moderate hardness, high toughness, high temperature resistance and stable thermal performance. It is mostly used for free grinding, such as grinding and rough grinding before electroplating of products. It is mainly used for polishing and sand blasting of stainless steel, metal products, optical glass, bamboo and wood products, and is also a novel abrasive for manufacturing resin grinding wheels, cutting sheets and abrasive cloths.
 
Black corundum is widely used in the surface treatment industry, which can make all kinds of surface treatments smoother. It 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, matte or matte treatment of precious metal products, crystal, glass, corrugated, acrylic and other non-metal matte processing and can make the surface of the workpiece into a metallic luster.
3, etching processing: jade, crystal, agate, semi-precious stones, seals, ya stone, antiques, marble tombstones, ceramics, wood, bamboo and other etching art.
4, pre-processing: Teflon (TEFLON), PU, ​​rubber, plastic coating, rubber drum (ROLLER), electroplating, metal spray welding, titanium plating and other pre-treatment, so that the surface adhesion increased.
5, raw edge processing: bakelite, plastic, zinc, aluminum die-casting, electronic parts, magnetic core and other raw edges.
6, stress relief processing: aerospace, defense, precision industrial parts, derusting, paint removal, finishing, and other stress relief processing.
7. Processing of electronic parts: matte surface and etching of silicon chip, impurity removal on the back side of wafer, overflow of electronic parts package, removal of surface printing of finished products, cleaning of ceramic electric heating
8, the processing of the mold: general mold surface sandblasting, mold biting after the matte surface treatment, wire cutting mold, glass mold, tire mold, conductive rubber mold, shoe mold, bakelite mold, plating mold, button mold, plastic products mold.
9. Processing of large work objects: large-scale workpieces such as oil tanks, chemical tanks, hulls, copper structures, metal houses, containers, automobile industry, etc. Derusting, paint removal, maintenance and large-scale flat glass automatic matte treatment.

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