Henan Sicheng Co., Ltd, owning two manufacturing enterprises for abrasives and machinery respectively, is a comprehensive joint-stock company integrating production, R&D and trade. Our company has been specializing in abrasives and machinery for over 10 years, and enjoys a good reputation for our best quality and service, Our production runs under the certifications of GB, ISO, FEPA, and JIS. We offer various items depending on the demands of our customers.
White aluminium oxide/white corundum, a kind of high-grade refractories, was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3. The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved
The chemical and physical analysis:
| white fused alumina | |||
| Chemical compositions | Physical properties | ||
| Items | Value of specification (%) | Items | Property |
| Al2O3 | 99.55min | Color | White |
| SiO2 | 0.04max | Bulk density | 1.75-1.95g/cm3 |
| Na2O | 0.22max | Grain density | 3.90g/cm3 min |
| Fe2O3 | 0.04max | Morse hardness | 9 |
| magnetic substance | 0.0023%max | Micro hardness | 21600-22600kg/mm3 |