High purity alumina beads
The high purity alumina beads that we developed characterized in excellent abrasion resistance and high purity.
Feature
φ0.2mm
Excellent abrasion resistance
When the high hardness ceramics is ground, abrasion resistance is higher than the zirconia beads.
High purity
The purity of the alumina beads is 99.99% or more.
When grinding, no contamination other than alumina.
It is suitable for grinding and dispersion of the electronic material that dislikes mixing the radioisotope.
Excellent corrosion resistance
It is excellent in corrosion resistance to the acid and the alkali.
There is no performance deterioration to the warm water.
Energy saving of grinding and dispersion
The density of alumina is 2/3 of the zirconia, and the filling weight to the mill is 2/3.
In addition, there is a possibility that the consumption energy when grinding can be decreased.
Size of beads
φ0.1mm, φ0.2mm, φ0.3mm, φ0.4mm, φ0.5mm
Density
Apparent density : 3.9g⁄cm³
Filling density : 2.4g⁄cm³
Typical purity data
Typical purity data
| Typical purity data | Na | K | Si | Fe | Mg | Ca | Cr |
| Content (ppm) | 8 | 4 | 10 | 8 | 3 | 3 | 2 |
(U:4ppb or less, Th:5ppb or less)
Analysis by ICP
Abrasion resistant test
Comparison of amounts of beads abrasion when agitator beads mill is used
condition
Mill type : Agitator beads mill
Grinding material : α-alumina powder or aluminum hydroxide (Gibbsite)
Concentration of slurry : 60% in case of a-alumina powder, 15% in case of aluminum hydroxide
Rotor speed : 7.8m/s, 12.6m/s
Slurry temperature : 20 - 30℃
Test conditionA
Use slurry : No grinding material, only water
Rotor speed : 7.8m/s
Test conditionB
Use slurry : Alumina slurry of 60%
Rotor speed : 12.6m/s
Test conditionC
Use slurry : Aluminum hydroxide slurry of 15%
Rotor speed : 12.6m/s
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Contact us
For further information or any comments, please contact...
- TAIMEI CHEMICALS CO.,LTD. SALES OFFICE
-
- Address
- Maruito-GinzaBldg.9F, 1-3-9, Ginza, Chuo-ku, Tokyo 104-0061 Japan
MAP - info@taimei-chem.co.jp