| Customization: | Available |
|---|---|
| Natural Abrasive Type: | Natural Corundum |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown aluminum oxide, also called Brown Fused Alumina, brown corundum, artificial corundum, BFA, etc, is made by melting process and reducing in electric furnace over 2200°C with three raw materials of bauxite, anthracite and iron chip. Then made into different grain size through cooling crystallization, sort, crush, magnetic separation, screen size, blow cleaning etc..
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.
| Purpose | Specification | Chemical composition(%) | Magnetic material ≤ | ||||
| Al2O3(≥) | Fe2O3(≤) | SiO2≤ | TiO2≤ | ||||
| For abrasive | F grit | 4#-80# | 95.0 | 0.3 | 1.5 | 3.0 | 0.05 |
| 90#-150# | 94.0 | 0.03 | |||||
| 180#-240# | 93.0 | 3.5 | 0.02 | ||||
| P grit | 8#-80# | 95.0 | 0.2 | 1.2 | 3.0 | 0.05 | |
| 100#-150# | 94.0 | 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 1-3mm3-5mm 5-8mm 8-12mm |
95.5 | 0.3 | 1.5 (1.0 from Tilting Furnace) | 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. | ||
Supply Capacity
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 , ship and tanks with non magnetic.
8.For Structural And Plate Steel Maintenance.
Refractories, Castables, Refractory Bricks
Brown aluminum oxide is of high purity, good crystallization, strong fluidity, low coefficient of linear expansion, high temperature resistance and corrosion resistance.Widely used in the manufacture of advanced refractory materials:
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.
Grit size: 16#, 20#, 24#, 30#, 36#, 46#, 54#, 60#, 80#, 100#, 120#, 150#, 180#, 220#
Micropowder: 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#, 2000#
Refractory Grit size:1-0mm, 3-1mm, 5-3mm, 5-8mm, -200mesh, -240mesh, -320mesh.
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