yixing haiyu refractory co.,ltd
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White crystalline powder high purity activated alumina industrial adsorbents insulating coating
Product name: high temperature calcination P series
Overview:
This series products have strict control of the crystal grain, morphology, grain size distribution. The crystal grain is round with narrow grain size distribution and not easy to be scratched and especially applicable in fine polishing. It has high hardness(Mohs hardness is 9),well suspension stability and well grinding and polishing properties.
Application area:
The production of polishing wax, polishing liquid and filling agent of polishing paste, grinding of electronic materials, grinding of single crystal silicon chip, semi-conductor electronic materials, polishing of optical glass (imaging glass bulb, computer hard disk, optical lens surface), polishing of high-level stone and various metal decorative materials etc..
Physical and chemical index of high temperature calcined α- alumina for polishing
| index
type |
Al2O3
|
Na2O |
Fe2O3 |
SiO2 |
a-Al2O3
| average value of particle diameter |
specific area |
remark
|
|
≥% |
≤% |
≤% |
≤% |
≥% |
D50(μm) |
BET㎡/g |
| |
|
HY-P1
|
99.2 |
0.10 |
0.05 |
0.20 |
95 |
3-5 |
|
|
|
HY-P2 |
99.2 |
0.3
|
0.05 |
0.2 |
95 |
2-3 |
|
|
|
HY-P3 |
99.3 |
0.3 |
0.05
|
0.2 |
95 |
1-2 |
|
|
|
HY-P4 |
99.5 |
0.4 |
0.05 |
0.2 |
95 |
0.1-0.3 |
|
|
|
HY-P5 |
99.6 |
0.15 |
0.02 |
0.15 |
96 |
1±0.5 |
6.5 | precision polishing |
|
HY-P6 |
99.8 |
0.05 |
0.03 |
0.15 |
96 |
5±0.5 |
1.5 | rough polishing |
