Brown Corundum
Description
Brown corundum, also known as emery, is made of bauxite, carbon material and iron dust after melting reduction in the arc furnace and brown Aluminum Oxide, the main chemical composition is AL2O3, its content is 95.00%-97.00%. And according to the ingredients of alumina, it is divided into different levels. Abrasive Brown Fused Alumina with good bauxite as raw material, and anthracite, iron filings in the arc by 2000℃ above high temperature smelting, grinding and shaping, magnetic separation iron, screen into a variety of granularity, its dense texture, high hardness, particle formation ball, suitable for manufacturing ceramics, resin high with abrasive tools and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture refractory materials.
Brown fused alumina also has high charge softening temperature and high temperature volume stability when manufacturing products. However, the impurity of BFA determines the storage life of the product in the process of use. Because impurities have not been completely removed in the casting process, brown fused alumina also contains secondary crystalline phases. Broadly speaking, the casting process and time of brown corundum determine the performance and quality of the product.
Features
Our company's Brown corundum has the characteristics of high purity, good crystallization, strong liquidity, low coefficient of linear expansion, corrosion resistance. The product has the characteristics of no initiation, no pulverization and no cracking in the process of application.
Products Description
|
Application |
Specification |
Main chemical composition% |
Magnetic substance% |
||||
|
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
||||
|
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 |
Duansha |
0-1mm 1-3mm 3-5mm 5-8mm 8-12mm |
≥95 |
≤0.3 |
≤1.5 |
≤3.0 |
— |
|
25-0mm 10-0mm 50-0mm 30-0mm |
≥95 |
≤0.3 |
≤1.5 |
— |
|||
|
powder |
180#-0 200#-0 320#-0 |
≥93.5 |
≤0.5 |
≤1.5 |
≤3.5 |
— |
|
Application
Abrasive: BFA is one of the important abrasive, can be used for grinding metal, ceramics, glass and other high hardness materials.
Surface treatment: It can be used as a surface treatment material, used to remove the corrosion of the metal surface, oxide layer.
Refractory materials: Brown Fused Alumina has good fire resistance, can be used in the manufacture of refractory bricks, refractory coatings, etc.
Electronic materials: Brown corundum has excellent insulation properties, can be used to manufacture electrical insulation materials, integrated circuits, etc.
Water treatment: It can be used for water treatment, used to remove impurities and pollutants in water, improve water quality.
Other applications: Brown Fused Alumina can also be used in the manufacture of artificial gems, ceramics, glass fibers and other materials.
Packing And Shipping
Packaging according to safety sea-exporting packing Standard
Dispatch : loading the finished packing material at factory by container Door toDoor
By 25kg kraft paper bags+sea fumigated wooden pallets

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