Characteristics of our Black Fused Alumina:
Choosing selected bauxite and iron oxide as raw material be smelted in tilting electrical arc furnace
Strong cutting force
Moderate hardness but good toughness and self-sharpening
Good abrasion resistance
Less heat value and efficient productivity
High temperature resistance
Suitable for grinding and polishing of stainless steel, non-ferrous metals and optical glass, the ideal material for resin grinding wheel and sand cloth and paper
|
Grit |
Chemical Composition |
|
Al2O3 ≥ % |
SiO2≥ % |
Fe2O3 ≥ % |
TiO≤ % |
|
24#-100# |
77.0 |
11.0 |
5.0 |
3.5 |
|
120#-200# |
75.0 |
9.0 |
4.0 |
3.0 |
|
240#-280# |
64.0 |
10.0 |
7.0 |
3.0 |
Physical Characteristics:
|
Crystal |
Trigonal system |
|
Hardness(Mohs) |
> 9.0 |
|
The maximum temperature |
1850º C |
|
True density(g/cm3) |
> 3.50 |
Linear expansion coefficient
(0-1600º C) |
7-9 |
Yuzhou Top International Co., Ltd. ---TOPIC located in Yuzhou, Xuchang City, Henan province China, here is called the hometown of refractory and abraisve products. Depending on rich natural resource of bauxite, silica stone, coal, bentonite, perlite, mullite etc and convenient traffics, we delviery our products to more than 30 countries. Here is about 1hour away to Zhengzhou International Airport.
TOPIC is a new and morden enterprise supplying qualified refractory products which range from bauxite, silicon carbide, bentonite, kaoline, perlite ore, mullite, fluorspar, fire brick, insulating fire brick, refractory castable to abrasive grits of fused white corundum, brown fused alumina, zirconia corundum, alumina grinding ball etc. We service for your high temperation application and grinding, polishing, metallugry applications.
Taking quality is the life of our enterprise, we manufacture and supply right goods under strict quality management constantly. With win-win and long-term cooperation spirits we welocme your visit and guidance all the time.
Quality, honesty, cooperation and development is our four words policy. We would glad to welcome the bright future with friends all over the world.
Thank you for your reading.
