Pink Fused Alumina Grain is widely used for cutting disc,mounted point,vitrified abrasive tools. It is a kind of artificial corundum produced by adding Cr2O3 to high purity aluminum oxide during the fusion process to get a pink color alumina grain.
Characteristic:
- Pink Fused Alumina grain is with higher strength than white fused alumina grain
- High toughness and self-sharpening
- High hardness with sharp edges of crystals.
- Durable, hard and resists high pressure
- High abrasive resistance
- It does not contain iron under normal conditions
- It has a structure suitable for wet and dry sandblasting applications
Applications
- Precision bonded abrasive tools such as Super-thin cutting disc, Cut off wheel, Grinding Wheel.
- Ceramic grinding wheel such as Crankshaft Grinding Wheel ,bowl grinding wheel, Cup grinding wheel, Mounted Points, Vitrified Abrasive tools.
- Coated Abrasive tools such as Sanding paper, Polishing Wheel.
- Sandblasting, rust removal with aggressive blasting is required.
- Lapping, polishing for extremely hard materials.
- Technical Ceramics.
CHEMICAL ANALYSIS | ||||||
Item/ chemical composition | F12~F80 | F90~F150 | F180~F220 | |||
Low Chromium | AL2O3 | ≥98.5% | ≥98.5% | ≥98.0% | ||
Cr2O3 | 0.20-0.45% | 0.20-0.45% | 0.20-0.45% | |||
NA2O | ≤0.50% | ≤0.55% | ≤0.60% | |||
Medium Chromium | AL2O3 | ≥98.2% | ≥98.2% | ≥97.8% | ||
Cr2O3 | 0.45-1.0% | 0.45-1.0% | 0.45-1.0% | |||
NA2O | ≤0.55% | ≤0.60% | ≤0.70% | |||
High Chromium | AL2O3 | ≥97.4% | ≥97% | ≥96.5% | ||
Cr2O3 | 1.0-2.0% | 1.0-2.0% | 1.0-2.0% | |||
NA2O | ≤0.55% | ≤0.60% | ≤0.70% | |||
TYPICAL PHYSICAL PROPERTIES | ||||||
Basic minerals: | α-Al2O3 | |||||
Crystal Size: | 600-800 μm | |||||
Hardness: | Mohs:9 | |||||
Knoop hardness: | 2200-2300 kg/cm3 | |||||
Melting Point: | 2050 ℃ | |||||
Specific Gravity: | 3.9-4.1g/cm3 | |||||
Bulk density(LPD): | 1.40-1.91 g/cm3 | |||||
Color: | Pink | |||||
Particle shape: | Angular | |||||
Available Sizes | F Grit | F24,F30,F36,F46,F54,F60,F80,F100,F120,F150,F180,F220 | ||||
P Grit | P40,P50,P60,P80,P100,P120,P150,P180,P220,P240,P280,P320 | |||||
Micro powder | F240,F280,F320,F360,F400,F500,F600,F800 |