Brown Fused Alumina
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Home >>Fused Alumina >> Black Fused Alumina
Brown fused alumina bauxite as raw material, coal, iron, high temperature
above 2000 degrees hitches in arc smelting, the mill grinding plastic, magnetic
separation to iron, screen is divided into a variety of particle size, dense
texture, high hardness, particle formed globular, high consolidation is suitable
for making ceramic, resin abrasive and grinding, polishing, sandblasting,
casting, etc., can also be used for manufacturing advanced refractories.
Brown corundum its main functions:
1. because of its high strength and other properties, it is used to cast steel
sliding nozzle, smelting rare metals, special alloys, ceramics, blast furnace
lining (wall and pipe); Physical and chemical ware, spark plug, heat - resistant
oxidation - resistant coating.
2. because of the characteristics of hardness, good sex, high strength, in the
chemical system, used as a variety of reaction vessels and pipes, chemical pump
parts; Do mechanical parts, all kinds of molds, such as wire drawing mold,
squeeze pencil core mold mouth, etc.; Do tools, mold abrasives, bullet-proof
materials, human joints, sealing ring and so on.
3. Corundum insulation materials, such as corundum light brick, corundum hollow
ball and fiber products, used in a variety of high temperature furnace wall and
top, both heat preservation. Emery particle size sand is made of artificial
emery block, using roller, ball grinding, barmark and other equipment
processing, particle size by F8-F325. Mainly used for polishing, grinding,
industrial grinding, etc., can also be washed according to customer
requirements, pickling and other processing, to meet the different needs of
customers.
Low carbon brown corundum after furnace and special process of reprocessing,
reduce the content of residual carbon in brown corundum, so that the product in
use is not pulverized, not burst, toughness is abrasives industry, refractory
industry raw materials. Mainly used for ceramic abrades, abrades, organic
abrades, belts, coated abrades, etc., according to the residual carbon content
is divided into: calcined brown corundum C ≤0.05%, low carbon brown corundum C
≤0.10%, ordinary brown corundum C ≤0.15%.
Product | Model | Leading indicator | Density | appearance | Hardnes s(mohs) | Micro | Melting | Max temperature(ºC) | Bulk densit y(g/cm3) | Application | Size | Abrasive | ||
Brown fused alumina | AL2O3 | Fe2O3 | SiO2 | |||||||||||
| A+ | ≥95 | ≤0.3 | ≤0.5 | 3.85g/cm3 | Brownish red particle | ≥9.0 | HV2200-2300 | 2250 | 1900 | 1.75-1.95g/cm3 | Refractory materials, fine casting | 16#-325# | F12-F1200, 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm | |
| A | ≥90 | ≤0.3 | ≤0.5 | Black granular gray powdery | Polish, grind | |||||||||
| B+ | ≥85 | ≤0.3 | ≤0.5 | Black granular gray powdery | Grinding, grinding wheel, cutting pieces, sandblasting | |||||||||
| B | ≥80 | ≤0.3 | ≤0.5 | Black granular gray powdery | Polish, grind | |||||||||
| C | ≥70 | ≤0.3 | ≤0.5 | Black granular gray powdery | epoxy | |||||||||
Application
Ceramic grinding tool
Grinding apparatus
High temperature furnace
Smelt
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