Calcined Alumina
Calcined Alumina is a commercial Alumina or Aluminum Oxide. It is white powder. One of the outstanding characteristics of Calcined Alumina is its hardness which is 9 on mohs scale. There is board industrial field of applications for this type of alumina and number of distinctive grade are produced to meet various needs.
Identification of grades
1) Calcined Aluminum S-100 grades: White granular free flowing powder passes through 150 m.
2) Calcined Aluminum S-300 grade: White superfine powder passes though 45 micron.
3) Calcined Alumina SCM grade: It is finally ground grades consisting entirely of superfine passes through 45 micron.
4) Calcined Alumina S-300 PT: It is finely ground grade consisting entirely of superfine with surface treated.
Uses
Use as a bedding material in the heat treatment of special alloy steels, It is use as a fluxing medium in the meeting of special steels as a component of low expansion glass. It is use as a constituent of special china dazes & it is use as a raw material for the manufacture of dental porcelains. It is use for refractory application such as electrical insulators. It is use as a abrasive resistant. It is use glazing ceramic tiles.
1. Alumina polishing powder is white crystalline powder composed of a-alumina. It can obtain a good particle size distribution and hardness through special controlled processing to meet the needs of a variety of polishing applications.
2. The product has uniform particle size, high hardness, strong grinding force, fast polishing speed, high efficiency, and high brightness.
3. It also features narrow particle size distribution range, high grinding efficiency, good polishing effect, and high grinding efficiency much higher than that of silica and other soft abrasives. The surface finish is better than the polishing effect of white corundum. With a strong cutting force, and fast luster achieving speed, it can achieve uniform and bright luster.
The main purpose
1. Suitable for vibratory polishing (machine polishing, tumbling), manual polishing (abrasive polishing) and so on of artificial stones, zircon, glass, natural stones, bowlder, jade, agate, etc.
2. Widely used in the grinding and polishing of aluminum, copper, stainless steel, stone, glass, tile, etc.
3. Can also be used in surface finish of burnishing stick, polishing slurry, paint surface, acrylic, stainless steel mirror, non-ferrous metal, jade, marble, granite rock, crystal, and optical glass.
4. Used in the manufacturing of artificial abrasive materials and artificial abrasives.
|
Crystal phase |
Al2O3 |
SiO2 |
Fe2O3 |
Na2O+K2O |
|
r |
>99.8 |
<0.02 |
<0.03 |
<0.04 |
|
a |
>99.8 |
<0.02 |
<0.03 |
<0.05 |
