White Fused Alumina WFA F80 F100 F120 for Grinding Disc
White Fused Alumina WFA F80 F100 F120 for Grinding Disc are made from fully melted aluminum oxide. It gains high corundum content and low NaO2, thus it help vitrify bonded abrasives to get more aggressive grinding capability. In the mean time, our WFA grains get high thermal stability, it can prevent cracks, burrs after grinding disc sintering. In this way, it can save manufacturing cost.
Product Feature of White Fused Alumina WFA F80 F100 F120 for Grinding Disc:
- Higher aluminum oxide content than normal WFA with low sodium oxide and silion oxide.
- High bulk density and specific gravity.
- Excellent thermal resistance.
- Superior toughness and grinding ability.
Typical physical properties:
| Hardness: | Mohs:9.0 |
| α-Al2O3 conversion ratios | Min 90% |
| Maximum service temperature: | 1900 centigrade |
| Melting Point: | 2250 centigrade |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.55-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
Typical Chemical composition:
| Item | Guarantee Value | Typical Value |
| AL2O3 | ≥99.6% | 99.68% |
| NA2O | ≤ 0.2% | 0.18% |
| SiO2 | ≤ 0.1% | 0.070% |
| Fe2O3 | ≤ 0.05% | 0.041% |
Particle size distribution:
| Particle | Mesh | Mesh Size(um) | Percentage(%) |
| Coarsest particle | +30 | 600 | 0 |
| Coarse particle | +40 | 425 | 6.5 |
| Basic particle | +45 | 355 | 50.6 |
| Mixed particle | +45 +50 | 355 300 | 86.9 |
| Fine particle | -60 | 250 | 0.8 |
Other grit size:
| Grit | Sieve1 | Sieve2 | Sieve 3 | Sieve 3 and Sieve4 | Pan | |||
| 100%Passing Mesh | Test Mesh | Max. Residue % | Test Mesh | Min. Residue % | Test Mesh | Min. Residue % | Max.3% Passing Mesh | |
| WFA F24 | 16 | 20 | 25 | 25 | 45 | 25 30 | 65 | 35 |
| WFA F30 | 18 | 25 | 25 | 30 | 45 | 30 35 | 65 | 40 |
| WFA F36 | 20 | 30 | 25 | 35 | 45 | 35 40 | 65 | 45 |
| WFA F40 | 25 | 35 | 30 | 40 | 40 | 40 45 | 65 | 50 |
| WFA F46 | 30 | 40 | 30 | 45 | 40 | 45 50 | 65 | 60 |
| WFA F54 | 35 | 45 | 30 | 50 | 40 | 50 60 | 65 | 70 |
| WFA F60 | 40 | 50 | 30 | 60 | 40 | 60 70 | 65 | 80 |
| WFA F70 | 45 | 60 | 25 | 70 | 40 | 70 80 | 65 | 100 |
| WFA F80 | 50 | 70 | 25 | 80 | 40 | 80 100 | 65 | 120 |
| WFA F90 | 60 | 80 | 20 | 100 | 40 | 100 120 | 65 | 140 |
| WFA F100 | 70 | 100 | 20 | 120 | 40 | 120 140 | 65 | 200 |
| WFA F120 | 80 | 120 | 20 | 140 | 40 | 140 170 | 65 | 230 |
| WFA F150 | 100 | 140 | 15 | 170 200 | 40 | 170 200 230 | 65 | 325 |
| WFA F180 | 120 | 170 | 15 | 200 230 | 40 | 200 230 270 | 65 | |
| WFA F220 | 140 | 200 | 15 | 230 270 | 40 | 230 270 325 | 60 | |
Main Application:
- Resin bonded cutting and grinding discs.
- Depressed center grinding wheels.
- Fiber discs.
- Sanding blocks.
- Vitrified grinding wheels.
- Net grinding wheel
- Polishing wheels.
- Whetstone and lapping stone.
- Polishing wax.
- Mounted point.
Production details:
Product Qualification of White fused alumina
Packing of White fused alumina
