China F36 Sand Blasting Aluminium Oxide / Brown Fused Alumina / BFA, Find details about China Brown Fused Alumina, Brown Aluminium Oxide from F36 Sand Blasting Aluminium Oxide / Brown Fused Alumina / BFA
What Is Difference Between Tilting Furnace Melted BFA & Fixing Furnace Melted BFA ?
Ball Milling & Barmac Process?
1. Tilting furnace process affects SiO2, SiO2 <1% by Tilting furnace, SiO2 <1.5% is by fixed furnace.
2. Barmac affects the density, the grain shape is rounder & the density is greater than ball milling
3. The Tilting furnace made BFA has high Al2O3 content
4. The corundum has good toughness & more suitable for abrasive products by dumping furnace process
The difference between F-grit & P-grit Abrasive grains:
F-grit is more suitable for bonded abrasive tools.
P-grit is more suitable for coated abrasive tools. It is with a closer tolerance size distribution, lower density, and better self-sharpening ability than non-P-grit abrasives, which means that they offer a more consistent surface finish.
Grain Usages and Types GB/T 2478-2008 | |||||
For vitrified wheels | For coated abrasives | For organic wheels | For refractory materials | ||
A | A-B | A-P | A-R | ||
Mohs Hardness | 9 | Density | ≥3.90g/cm3 | ||
Micro Hardness | HV1800-2200 | Electrical Resistivity | 1014-1016Ω•cm | ||
Grinding Ability | 0.10 | Linear expansion coefficient | 7.6 |
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 |
Sizes-Section sand | ||||
0-1mm | 1-3mm | 3-5mm | 5-8mm | 0-25mm |
200mesh | 325mesh | Special sizes can be customized as per clients' requirements |
Type | Grit | Al2O3 | TiO2 | CaO | SiO2 | Fe2O3 |
A | F4-F80 | 95.00-97.50 | 1.70-3.40 | ≤0.42 | ≤1.00 | ≤0.30 |
F90-F150 | 94.50-97.00 | |||||
F180-F220 | 94.00-97.00 | 1.70-3.60 | ≤0.45 | ≤1.00 | ≤0.30 | |
F230-F800 | ≥93.50 | 1.70-3.80 | ≤0.45 | ≤1.20 | ≤0.30 | |
F1000-F1200 | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
A-B | F4-F80 | ≥94.00 | 1.50-3.80 | ≤0.45 | ≤1.20 | ≤0.30 |
F90-F220 | ≥93.00 | 1.50-4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
F230-F800 | ≥92.5 | ≤4.20 | ≤0.60 | ≤1.60 | ≤0.30 | |
F1000-F1200 | ≥92.00 | ≤4.20 | ≤0.60 | ≤1.80 | ≤0.30 | |
A-P | P12-P80 | 95.00-97.50 | 1.70-3.40 | ≤0.42 | ≤1.00 | ≤0.30 |
P100-P150 | 94.50-97.00 | |||||
P180-P220 | 94.00-97.00 | 1.70-3.60 | ≤0.45 | ≤1.00 | ≤0.30 | |
P240-P800 | ≥93.50 | 1.70-3.80 | ≤0.45 | ≤1.20 | ≤0.30 | |
P1000-P1200 | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
P1500-P2500 | ≥92.50 | ≤4.20 | ≤0.55 | ≤1.60 | ≤0.30 | |
A-R | 0-1mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 |
1-3mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 | |
3-5mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 | |
5-8mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 |
Application
* For Free grinding, such as glass industry.
* For Friction products and abrasion resistance ground.
* For Resin bonded abrasive and coated abrasive products.
* For Refractory material, Wear-resistant and fire-proof products.
* For Grinding stone, sand paper, sand cloth, sand belt.
* For Coated abrasives sand paper and Sandblasting/ Wet and dry blasting.
* For Producing mold of precision casting and Grinding, lapping and polishing media.