White corundum is made from fine alumina oxide powder and crystallized by high temperature electric melting. Its hardness is slightly higher than that of brown corundum with low toughness, high purity, good self-sharpening, strong grinding ability, low calorific value, high efficiency, resistance to acid and alkali corrosion and high temperature thermal stability.

~Physical properties

Place of Origin  Henan,China(mainland)
Brand Name  Sicheng
Product Name  white fused alumina
Model Number  All size
Material  AL2O3
Feature  High Purity
Usage Polishing,Refractory,Abrasive
Color  white
Advantage Whole Process Quality Control And High Performance
Chemical Composition  Al2O3,Fe2O3,Na2O,SiO2
Moh's hardness  9.0
Bulk density 1.75-1.95g/cm3
Real density  3.95g/cm3
Melting point  2250oc
Maximum service temperature 1900oc
Grade  Top Grade
Sample  Sample Provided
Customization  Available

~The production process
1. White corundum is crystallized by smelting at high temperature in an arc furnace with high-quality aluminum oxide powder as raw material
2. Use jaw crusher to break crystals
3. Vertical ball mill is used to conduct secondary grinding of the crushed crystals to make them finer
4. Magnetic separation to remove impurities
5. Screening model
6. Weigh and package all models and store them in storage

~items           indicators                       Test items                                  indicators
Al2O3           ≥99.5%                The highest operating temperature          1900C
Fe2O3          ≤0.4%                   Mohs hardness                                          9.0
Na2O            ≤0.35%                bulk density                                     1.75-1.95g/cm3
SiO2             ≤0.08%                real density                                           3.95g/cm3

~Application
1. Can be used in various sand blasting and polishing operations
2. Atomized aesthetic processing of glass or acrylic products
Sand blasting in the process of making TV screens
4. Silicon wafer cutting
5. Clean and sandblast the tooth mold
6. Sand for precision casting
7. White corundum can be used as an additive to refractories and other ceramics