Brown Fused Alumina F24,F46,F54Abrasive Raw Materials For Vitrified Wheel .Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality abrasive bauxite as raw material.It is characterized by good self-sharpening and high grinding ability. Brown Fused Alumina can produce ceramic grinding wheel ,resin grinding wheel.And BFA could be used for abrasive,sandblasting and precision casting
Brown corundum production process:
Break up the bauxite →add iron filings ,carbon smelting→cooling→break the brown corundum block→manual sorting→different grades of brown corundum
Brown fused alumina for refractory advantages:
1) No burst,no pulverization and crack in the using course of refractory
2) Refractory temperature is more than 1900°C
3) High quality bauxite as raw material
4) Very low amount of iron oxide
5) High purity
6) Low coefficient of linear expansion
Brown corundum for Abrasive SandblastingPrecision casting advantages:
1)Very low amount of iron oxide, suitable for non-ferrous blasting operations.
2) Sandblasting in the non-iron process.
3) High speed processing.
4) Not affecting the color of the processing cases.
Brown Fused Alumina /Brown Aluminum Oxide for refractory
Purpose |
Specification |
Chemical composition(%) |
Magnetic material content(%) |
|
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
|
Refractory |
Size sand |
0-1mm
1-3mm
3-5mm
5-8mm
8-12mm |
≥95.0 |
≤0.25 |
≤1.0 |
≤3.0 |
— |
0-3mm
0-5mm
0-10mm
0-25mm |
≥95.0 |
≤0.25 |
≤1.0 |
≤3.0 |
— |
Fine powder |
180#-0
240#-0
320#-0 |
≥94.5 |
≤0.30 |
≤1.5 |
≤3.5 |
— |
|
Brown Fused Alumina /Brown Aluminum Oxide Physical Properties |
Color |
True Density |
Mohs Hardness |
Melting Temperature |
Crystal System |
Refractory Temperature |
Brown |
3.90g/cm3 |
9.0 |
2050°C |
trigonal system |
1900°C |
Brown Fused Alumina for Abrasive Sandblasting Precision casting
Purpose |
Specification |
Chemical composition% |
Magnetic material content% |
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
BFA For Abrasive |
F |
4#—80# |
≥95.0 |
≤0.25 |
≤1.0 |
≤3.0 |
≤0.05 |
90#—150# |
≥95.0 |
≤0.03 |
180#—240# |
≥94.5 |
≤0.3 |
≤1.5 |
≤3.5 |
≤0.02 |
P |
8#—80# |
≥95.0 |
≤0.25 |
≤1.0 |
≤3.0 |
≤0.05 |
100#—150# |
≥95.0 |
≤0.03 |
180#—220# |
≥94.5 |
≤0.3 |
≤1.5 |
≤3.5 |
≤0.02 |
W |
1#-63# |
≥94.0 |
≤0.5 |
≤1.8 |
≤4.0 |
—
|