Brown Fused Alumia powders are fused wIth premium raw materials and 3500 KVA furnace. It is perfect material specifically manufactured to be used for general abrasive applications in bonded abrasive tools, polishing and sandblasting grit. It has lower hardness and abrasive capacity than diamond, boron carbide, and silicon carbide, it is widely used for grinding ferrous materials, finishing tough and hard materials. It is also be used as high-class refractory materials. Brown Fused Alumia is offered in macro and micro powder form, in both F and P grades.
Brown fused alumina for refractory
brown corundum is called industrial teeth: mainly used in refractory raw materials, grinding wheels, sand blasting.
Sandblasted brown corundum – sandblasted abrasive with moderate hardness, high bulk density, no free silica, large specific gravity and good toughness. It is an ideal “environmentally friendly” sandblasting material widely used in aluminum profiles and copper profiles. Washed denim clothing precision molds and other fields;
Free grinding - grinding grade abrasives, used in the fields of picture tube, optical glass, monocrystalline silicon, lens, glass for clocks, crystal glass, jade and other fields, is a high-grade abrasive material commonly used in China;
Resin Abrasives—Abrasives have suitable color, good hardness, toughness, suitable particle cross-section type and edge retention. They are used in resin abrasives with good results.
Coated abrasives—abrasives are raw materials for the production of sandpaper, gauze, etc.
Brown corundum functional filler - mainly used for automobile brake parts, special tires, special construction products, etc. It can be used as a wear-resistant material for highway pavement, airstrip, dock, parking lot, industrial floor, sports ground, etc.
Filter media – it is a new application field of abrasives. It uses granular abrasive as the bottom media of filter bed to purify drinking water or waste water. It is a new type of water filtration material at home and abroad, especially suitable for non-ferrous metal beneficiation and oil drilling mud weighting agent.
Brown Fused Alumina for Abrasive:
|
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 |
92.5 |
0.5 |
1.8 |
4.0 |
|
|
Brown Fused Alumina for Refractory:
|
Size for Sand |
0-1mm;1-3mm |
95.5 |
0.3 |
1.5 (1.0 from Tilting Furnace) |
3.0 |
|
Size for Sand |
0-3mm;0-5mm |
95.0 |
0.3 |
1.5 |
3.0 |
|
Fine powder |
140F;200F |
94.5 |
0.5 |
1.5 |
3.5 |
Packing : 1). 25 kgs/ bag ,in bulk ;
2). 25 kgs/ bag *40 bags in big bag ;
3). 25 kgs/ bag *40 bags on wooden pallet .
4).According to customer's requirement .
Shipping date : In 20-25 days after receiving your down payment .
White corundum is made from industrial alumina powder, which is smelted in an arc at a high temperature above 2000 ℃ and then cooled. After crushing and shaping, magnetic separation to remove iron, it is divided into various particle sizes.
Brown corundum is made of natural bauxite as raw material, carbon (mainly coke) is used as reducing agent, and iron filings are added as sedimentation agent (clarifier) to form ferrosilicon deposited on the bottom of electric furnace.
Common low-creep high-alumina bricks can be used in blast furnace hot blast stoves, as well as other industrial kilns, and can also be made into low-creep high-alumina bricks of different sizes according to specific construction requirements, such as lattice bricks, special-shaped bricks, anchor bricks, etc. , mainly used in industrial kilns in long-term high temperature environments
low porosity clay bricks are mainly used in the regenerators of glass kilns. They can also be used in blast furnaces and hot blast furnaces in the steel industry; cement kilns in the building materials industry; chemical kilns in the chemical industry as kiln linings
The refractoriness of clay bricks is comparable to that of silica bricks, up to 1690~1730℃, but the softening temperature under load is more than 200℃ lower than that of silica bricks. Because in addition to the high refractory mullite crystal, the clay brick also contains nearly half of the low melting point amorphous glass phase.
Silicon carbide castables mainly use 98 silicon carbide as the main raw material, add water reducing agent and micropowder, and use pure calcium aluminate cement as binder to make amorphous refractory materials. Cupola and other high temperature materials to be recorded.
Calcined alumina is a product obtained by calcining aluminum hydroxide at high temperature to partially or almost completely convert it into aAl2O2.
In recent years, bauxite powder and bauxite have been widely used in common cast steel coatings and cast iron coatings due to their high fire resistance, good chemical stability, small expansion coefficient, rich source and low price.
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