Qingdao Hypon International Trade Co., Ltd.
Qingdao Hypon International Trade Co., Ltd.
[
Shandong,
China (Mainland) ]
Shandong, China (Mainland)
Hypon
Grade A
Grain
F12-F80,F90-F150,F180-F220
Polishing / Lapping
| Packaging Details: | 25kg/bag, one inner plastic bag, two poly-woven bags or one coated poly-woven bag. Paper bag or carton packing is available. Wooden pallet or jumbo bag is also available. |
|---|---|
| Delivery Detail: | within 10 days after deposit or L/C received |
White fused alumina is made from high quality Bayer-processed alumina by fusing in an electric arc furnace at high temperature. It has high hardness and better cutting characteristics. It is suitable for manufacturing of vitrified and resinoid tools, and for lapping, polishing and blasting. It can be also used to make engineering ceramic and superior refractory products.
|
Symbol |
Rang of Grit Sizes |
Chemical Composition% |
||
|
≥Al2O3 |
Na2O |
|||
|
WA |
F |
12# - 80# 90# - 150# 180# - 220# |
98.50 98.50 98.20 |
0.50 0.60 0.70 |
|
P |
P12 - P80 P100 - P150 P180 - P220 |
98.50 98.20 98.00 |
0.60 0.70 0.80 |
|
|
R |
8-5mm,5-3mm,3-1mm 1mmF 0.125mmF 0.074mmF 0.045mmF 0.088mmF |
98.50 98.50 98.50 98.50 98.50 96 |
0.35 0.45 0.60 0.60 0.60 0.90 |
|
White fused alumina(WFA), a kind of high-grade refractories, is made from the imported quality alumina by melting above 2000 c in the electric arc furnace and cooling. It is white with the main crystal phase a-AL2O3. The white alumina produced in the titling electric arc furnace has the advantage of high bulk density and low porosity, thus the volume stability and thermal shock resistance can be improved.
|
CHEMICAL COMPOSITION |
GRIT >0.1mm |
TYPICAL VALUE |
FINE POWDER ≤0.11mm |
TYPICAL VALUE |
|
AL2O3%≥ |
99 |
99.5 |
99 |
99 |
|
SiO2%≤ |
0.1 |
0.05 |
0.15 |
0.08 |
|
Fe2O3%≤ |
0.1 |
0.06 |
0.15 |
0.06 |
|
K2O+Na2O%≤ |
0.4 |
0.3 |
0.45 |
0.35 |
|
Apparent Porosity%≤ |
8 |
6 |
|
|
|
Bulk density (g/cm³)%≥ |
3.60 |
3.62 |
|
|
|
True density (g/cm³)%≥ |
3.92 |
3.92 |
3.92 |
3.93
|
