Customization: | Available |
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Natural Abrasive Type: | Natural Corundum |
Artificial Abrasive Type: | Corundum Abrasives |
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BROWN FUSED ALUMINA GRITS FOR BONDED ABRASIVES
Brown fused alumina is made by fusion in an electric arc furnace from a mixture of bauxite, anthracite and iron scraps at high temperature. It has brown color, high hardness and great toughness. No rusty spot, greatly improved grinding efficiency, applicable to make high quality vitrified and resin bonded abrasives. suitable for the production of ceramic, high-resistance abrasive resin and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture high-grade refractories.Our production standard can be GB/T, also can be FEPA, JIS, ISO, etc.. according to clients' requirements.
By Al2O3:
By Application:
By Smelting Type:
By Crushing Type:
By Additional Treatment:
Purpose | Specification | Size | Al2O3(≥) | Fe2O3(≤) | SiO2≤ | TiO2≤ | Magnetic |
For abrasive | F grit |
12#-80# | 95.0 | 0.3 | 1.5 | 3.0 | 0.05 |
90#-150# | 94.0 | 0.3 | 1.5 | 3.0 | 0.03 | ||
180#-240# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
P grit |
8#-80# | 95.0 | 0.2 | 1.2 | 3.0 | 0.05 | |
100#-150# | 94.0 | 0.2 | 1.2 | 3.0 | 0.03 | ||
180#-220# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
Micro Powder | W0.5-W63 F320-F1500 | 92.5 | 0.5 | 1.8 | 4.0 | ||
For refractory | Size for Sand | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | 95.5 | 0.3 | 1.5 | 3.0 | |
0-3mm 0-5mm 0-10mm 0-25mm | 95.0 | 0.3 | 1.5 | 3.0 | |||
Fine powder | 100F 200F 325F | 94.5 | 0.5 | 1.5 | 3.5 |
Item | Index |
Colour | Dark brown(Deep blue after calcination) |
Crystal form | Trigonal crystal |
Hardness(MO) | ≥9.0 |
Melting point(°c) | 2250 |
Maximum service temperature°c | 1900 |
True density(g/cm3) | ≥3.9 |
Coefficient of linear expansion | 7-9 |
Grit No. | Bulk Density | Grit No. | Bulk Density |
F12 | 2.02-2.10 | F60 | 1.76-1.84 |
F14 | 2.00-2.08 | F70 | 1.75-1.83 |
F16 | 1.97-2.05 | F80 | 1.73-1.81 |
F20 | 1.94-2.02 | F90 | 1.71-1.79 |
F22 | 1.92-2.00 | F100 | 1.64-1.72 |
F24 | 1.90-1.98 | F120 | 1.61-1.69 |
F30 | 1.88-1.96 | F150 | 1.59-1.67 |
F36 | 1.87-1.95 | F180 | 1.57-1.67 |
F40 | 1.81-1.89 | F220 | 1.55-1.63 |
F46 | 1.79-1.87 | F60 | 1.76-1.84 |
F54 | 1.77-1.85 |
Applications for refractory industrial:
Unshaped refractory, stereotypes refractory, castable, ladle refractory, blast furnace hot air furnace series combination brick, high alumina brick, carbon refractory, mullite brick, gun mud, Bulk materials, ceramic bricks, composite bricks, corundum products, charge, pound, refractory raw materials, abrasive raw materials, used in steel mills, foundries, glass factory high-end refractories.
Applications for abrasives:
1.For the raw material of Unshaped and shaped refractory
2.For Friction products and abrasion resistance ground,
3.For Resin or ceramic bonded abrasive,such as grinding wheels,cutting off wheels.
4.For Grinding and polishing ,such as gringing stone, Grinding block, flap disc.
5.For Coated abrasives,such as abrasive paper,abrasive cloth,abrasive belt,Guze.
6.For Producing mold of precision casting and Grinding, lapping and polishing media.
7.For Shot-blasting, such as for sandblasing oil piple and ship.
In addition,Brown Aluminium Oxide is also used in the following applications:
Bonded Abrasives : Resin cutting discs, Ceramic grinding wheels;
Coated Abrasives: Jumbo rolls, Sand belts, Flap wheels etc.
Refractories: High alumina brick, refractory aluminium oxide lining mixture, pouring materials etc.
Anti-slip materials