yixing haiyu refractory co.,ltd
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white powder aluminum content 99% grinding materials and grinding tool refractory matter
Product name: high temperature calcination H series
Product introduction:
activated alumina is easily sintered at low temperature to achieve high density, which can not only improve ceramic properties, but also greatly reduce the energy consumption. Through particle packing optimization, it can reduce the amount of added water to the unshaped refractory and form the solid ceramic bond and improve the wear resistance and mechanical strength. It has the characteristics of more well suspension stability, higher activity, easier sintering, lower water absorption, larger specific area, and higher saddle strength etc..
Application area:
1. ceramic: glass-ceramics, micro-crystal alumina solid ball
2. Electronics:coating
3. Unshaped refractory: castable, self-flow material, ramming material, gunning material, plastic material etc.
4.2. High level kiln furniture
Physical and chemical index of high temperature calcined α- alumina activation
| index
type |
Al2O3
|
Na2O |
Fe2O3 |
SiO2 |
a-Al2O3
| average value of particle diameter |
specific area | |
|
≥% |
≤% |
≤% |
≤% |
≥% |
D50(μm) |
BET㎡/g | ||
|
HY-H370
|
99.7 |
0.05 |
0.03 |
0.05 |
97 |
2.5±0.5 |
3 | |
|
HY-HC |
99.65 |
0.18
|
0.03 |
0.05 |
95.8 |
1.5-1.7 |
3.2 | |
|
HY-H1 |
99.6 |
0.05 |
0.04
|
0.05 |
96 |
1±0.5
|
7.5 | |
|
HY-H2 |
99.6 |
0.15 |
0.04 |
0.05 |
95 |
1.6±0.5 |
4 | |
|
HY-H3 |
99.4 |
0.25 |
0.04 |
0.07 |
95 |
2.5±3.0 |
3 |
