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Specifications
refractory ceramic fiber bulkLow heat store up
Low heat-conduction ratio
Good thermal shock endurance
ProducDescription :
The ceramic fiber are manufacturered from high purity raw materials:alumina powderAI2O399%, silica sandSiO99% for the high temperature grades and zircon sandZrO266%is also used. The ceramic mixture is heated in an high temperature electric furnace and the stream of molten material is drawn into fibres by eithter spinning or blowing. It is produced by advanced "blown" and "spun" processes. Ceramic fiber bulk show a high temperature stability ,low weight and heat capacity and an outstanding sound absorption is complemented by their resistance to shock and erosion .
The polycrystal alumina fiber cotton is made of melt aluminum salt throught chemical colloid method.The solution are heated and inspissated into fiber under specific conditions and got polycrystal alumina fiber after heat treatment.
Product Features:
Excellent thermal stability and chemical stability
Keep loose ,soft and elastic under high temperature,
Low thermal conductivity and heat storage
Excellent thermal shock resistance
No bond and corrosive material
Excellent sound absorption perfomance
Application:
Base material for the production of board,paper, abnormity etc
Filling material for expansion gap or short-term heat insulation mending
FIber strengthen material for heat insulation beton and bonding agent
Mixture product
Type |
COM |
STD |
HP |
HA |
HZ |
Classification temp(ºC) |
1100 |
1260 |
1260 |
1360 |
1430 |
Work temp(ºC) |
<1000 |
1050 |
1100 |
1200 |
1350 |
Color |
PureWhite |
PureWhite |
PureWhite |
PureWhite |
PureWhite |
Fiber diameter(um)Blown |
2--3 |
2--3 |
2--3 |
2--3 |
2--3 |
Fiber diameter(um)Spun |
3—4.5 |
3—4.5 |
3—4.5 |
|
3—4.0 |
AL2O3(%) |
44 |
45--46 |
47--49 |
52--55 |
39--40 |
AL2O3+SIO2(%) |
96 |
97 |
99 |
99 |
------- |
ZrO2(%) |
-------- |
-------- |
-------- |
-------- |
15--17 |
Fe2O3(%) |
<1.2 |
<1.0 |
0.2 |
0.2 |
0.2 |
Na2O+K2O(%) |
≤0.5 |
≤0.5 |
0.2 |
0.2 |
0.2 |
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