Brown corundum is made of high-quality abrasive-grade alumina as a raw material, supplemented with auxiliary materials, and then refined in an electric arc furnace at a high temperature of 2250 ° C or higher. After this, secondary refining is performed by a high-strength magnetic separator to remove impurities, and the fire resistance is above 1850 ° C.
The RS brown corundum produced by our company has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient, and corrosion resistance. This product has the characteristics of no explosion, no chalking, no cracking in the application process, and is often used in abrasives and refractory raw materials industries.
Brown corundum can be divided into smelting methods: dumping furnace and fixed furnace.
The main products are: brown corundum barmac sand, roller sand, ball mill sand, section sand, P sand, fine powder, micro powder.
Special treatment products are: high temperature calcined brown corundum, medium temperature calcined brown corundum, water washing, pickling, dry cleaning (air washing).
Abrasives: abrasive wheels, abrasive belts, sandpaper, abrasive cloth, cutting blades, sandblasting technology, grinding, wear-resistant flooring, waterjet cutting, coated abrasives, consolidated abrasives, etc.
Refractory materials: castables, refractory bricks, ramming materials, slides, nozzles, ladles, furnace linings, precision casting, etc.
|Brown corundum dumping furnace smelting||Brown corundum fixed furnace smelting|
|Cooling process||Sand making line|
Physical and Chemical Index of Ruishi Brown Corundum
|use||specification||Main chemical composition%||Magnetic substance%|
|Abrasives||F||4 # —80 #||≥95||≤0.3||≤1.5||≤3.0||≤0.05|
|90 # —150 #||≥94||≤0.03|
|180 # —240 #||≥93||≤0.3||≤1.5||≤3.5||≤0.02|
|P||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|
|W||1 # -63 #||≥92.5||≤0.5||≤1.8||≤4.0||—|
|Refractory||Segment sand|| 0-1mm |
| 25-0mm |
|powder|| 180 # -0 |
200 # -0
320 # -0
Note: F is the specification for fixed abrasive and sandblasting
P is the specification for coated abrasives
W is fine powder, 320 # is W40
|Brown corundum physical properties:|