Zhengzhou Zhengtong Abrasive Import&Export Co.,Ltd
Zhengzhou Zhengtong Abrasive Import&Export Co., Ltd is exporter of blasting media ceramic beads, brown fused alumina, black fused alumina, white fused alumina & grinding media zirconia beads,
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BROWN FUSED ALUMINA FOR SANDBLASTING OF SURFACE CLEANING
The brown aluminum oxide blasting abrasive is made of high-quality bauxite as raw material and refined by electric fusion. It has the characteristics of high blasting efficiency and high cost performance with moderate hardness, high toughness, good self-sharpness and low blast consumption, the brown fused alumina has sharp edges and can form new edges and edges in the continuous pulverization and classification, which makes the blasting ability better than other abrasives. It is an ideal material for sandblasting and rust cleaning of workpieces and grinding and polishing.
Commodity: Brown Fused Alumina
Production Type: Tilting Furnace, Barmac Crushing, Air Blow Cleaning
| Chemical Index | ||||
| Al2O3 | SiO2 | Fe2O3 | TiO2 | CaO |
| 95%min. | 1.0% max. | 0.3% max. | 2.0%-3.0% | 0.45% Max. |
| Physical Index | ||||
| Color | Crystal Form | True Specific Gravity | Vickers Hardness | Melting point |
| Brown | Trigonal Crystal | 3.97g/cm3 | 2100kg /mm2 | 2000 °C |
| Sizes-Grit & Bulk Density (g/cm3) | ||||
| F12# 1.93-1.99 | F14# 1.92-1.98 | F16# 1.91-1.97 | F20# 1.90-1.96 | F22# 1.89-1.95 |
| F24# 1.88-1.94 | F30# 1.87-1.93 | F36# 1.85-1.91 | F40# 1.84-1.90 | F46# 1.83-1.89 |
| F54# 1.82-1.88 | F60# 1.81-1.86 | F70# 1.80-1.84 | F80# 1.79-1.82 | F90# 1.77-1.80 |
| F100# 1.75-1.78 | F120# 1.73-1.76 | F150# 1.70-1.74 | F180# 1.69-1.73 | F220# 1.68-1.72 |
Supply Capacity
Surface cleaning and decontamination:
Metal parts such as castings, stampings, welded parts, heat-treated parts, etc., descaling, residue, dirt; surface cleaning of non-metallic products, removal of black spots on ceramic blanks, reduction of lacquer patterns, etc.
Process requirements
There should be no residual oxide scale in the casting after sandblasting, and the surface of the casting should have uniform color.
2. Brown aluminum oxide grits better between 80-140 mesh
3. Sandblasting equipment: For small pieces (weight less than 300g, length less than 120mm, and no other special requirements) using rotary drum pressure type sand blasting machine, the rest using pressurized or ordinary self-priming sand blasting machine
4. Working dry air pressure 0.65-0.85Mpa, the blasting media and the workpiece must be dry.
Caroline Cui