White Fused Alumina
White Fused Alumina(WA),also called White Fused Aluminium Oxide, named by its white color, belongs to the electro fused artificial corundum group and is an important mineral used widely for refractory bricks,refractory castables,pre-cast refractory shapes,other unshaped refractory products,ceramic shapes,metal&ceramic surface preparation,grinding wheels,sandpapers,sanding belts,sandblasting media,lapping and polishing. It's obtained from reduced fusion of high purity calcined alumina in electric arc furnaces. Calcined alumina is the most important material in aluminium making industry.
After the fusion process, the materials become liquid, then cooled down and crushed into different sizes for different applications. Magnetic contents are removed and materials are reshaped by relevant equipments, and then sieved into standard sizes(FEPA,JIS,ANSI) of standard particle distribution. It is characterized by high purity (Al2O3 content≥99%), great self-sharpening, acid and alkali resistance, high temperature resistance and stable thermal performance, which make it to be prefect raw material for all kinds of abrasive tools, including grinding high carbon steel, high speed steel, stainless steel and other fine-grained abrasives, it also can be used for precision casting and high-refractory materials.
White Fused Alumina is a hard, chemically stable and relevantly fragile material with high alumina content, low impurity and stability in high temperatures. It has durable abrasives ability, high fireproof and refractory characters, making it an very important raw material in refractory, bonded abrasives and coated abrasives industries. Similar materials we make are Brown Fused Alumina and Vice White Fused Alumina.
White Fused Alumina Characters
1.High Alumina
White Fused Alumina has a Aluminium Oixde(Al2O3) content of more than 99%. The high alumina content is ensured from its raw material which is calcined alumina.The high content of Al2O3 makes it perform well in fireproof and refractory applications.
2.Little Impurities
White Fused Alumina has very little impurities, usually less than 0.4% Na2O, less than 0.15 SiO2 and less than 0.15 Fe2O3. It is chemically stable and little impurities make it ideal for refractory uses.
3.High Hardness
The high content of Al2O3 (Aluminum Oxide) makes it to be with very high hardness (Mosh Hardness≥9) and It's usually utilized for grinding ,cutting, lapping, sandblasting, polishing, surface preparing and also for coated abrasive application, including sandpaper and sand belt.It's not easy to break and good for abrasives. In abrasives industries, it is used for cutting wheels, grinding wheels etc, also used for coated abrasives applications like sandpapers. It's white color and little impurities also make it excellent grinding and sandblasting media for preparing and polishing surface of metal, ceramic products etc. WA fines is also an good material for polishing and water jetting in electronics industry.
4.Sharp Edges
White Fused Alumina is a crystal mineral with sharp edges and widely used in sandblasting,cutting and grinding abrasives.
White Fused Alumina Properties
| Physical Specifications |
| Color | White |
| Grain Shape | Angular |
| Mosh Hardness | 9 |
| Melting Point | 2250ºC |
| True Gravity | 3.96g/cm3 |
| Bulk Density | 1.75g/cm3-2.1g/cm3 |
| Chemical Specifications |
| Aluminium Oxide(Al2O3) | 99%min |
| Iron Oxide(Fe2O3) | 0.15%max |
| Disodium Oxide(TiO2) | 0.4%max |
| Silicon Oxide(SiO2) | 0.15%max |
| Physical Analysis | Grit# | Max Size | Big Size | Basic Size | Mixed Size | Small Size |
|
|
| F120 | +0.180 | +0.125 | +0.106 | +0.090 | -0.063 | AL2O3 | 99.41% |
| Standard | 0% | 0-20% | 40-100% | 65-100% | 0-3% | SIO2 | 0.05% |
| Sample 1 | 0 | 15 | 65 | 83 | 0.5 | Na2O | 0.31% |
| Sample 2 | 0 | 16 | 64 | 82 | 0.5 | Fe2O3 | 0.03% |
Luoyang Zhongsen Refractory Co., Ltd is a China producer and supplier of Brown Fused Alumina and White Fused Alumina for refractory, abrasives, blasting and surface preparation industries located in Yichuan County, Luoyang Area, Henan Province. Our products are with the highest quality for refractory bricks, un-shapped refractory purposes, crucibles, casting and painting, precision cutting, grinding, lapping, polishing, sandblasting, shotblasting, anti-slipping purposes and other applications and industries.
Yichuan County is in central China with highly convenient transportation to all over China by highway, railway and air. It is one of the most important manufacturing bases for Brown Fused Alumina and White Fused Alumina, about 70% of BFA exported out of China is produced here.
Our company is a subsidiary of Sinosteel Luoyang Refractory Plant, the company provides advanced production technology; The company has fused alumina corundum processing plant and two plants: Fused alumina corundum smelting plant smelting furnace 4 and white corundum smelting furnace 2, the main production corundum, white corundum and corundum; Corundum Barmac plant has four production lines and four pairs of roller production lines and two Raymond production line, a pickling line; The factory has a processing of sand, P sand and powder complete sets of equipment, in addition to meet the abrasive industry, but also for the production of high quality wear-resistant refractory material provides the basis. Refractories unshaped refractories subsidiaries engaged in the production of electricity, cement, metallurgy industry to provide a large number of high-quality products, the main products are power plants with fluidized bed castable, pipes and chutes with flexible wear coatings, blast furnace stemming, iron ditch expected, ladle and tundish castable, and ladle drainage sand, desulfurizer, deoxy-like metallurgical materials.
Over the years our products are exported to Japan, South Korea, India, the United States, Germany, at home and abroad enjoy a certain reputation, praised by users.
A warm welcome to research institutes, universities, experts and scholars to come to our company to inspect, and cooperation. Sincere welcome customers to visit to visit, the guide.
