Complaint
Ultrafine ceramic fiber cotton, adopting gangue and industrial metallurgical slag as material, melted in high temperature by the industrial furnace, blowing or swinging, is produced by swinging technology. The product average diameter is 3-5μm, which is thinner than existing ceramic fiber selling in the market.
The indicators of ceramic cotton
| content | Data | Test method |
| Diameter of fiberμm | 3-5 | GB/T 5480 |
| Slag ball content(Particle size>0.25mm)% | ≤20 | GB/T 5480 |
| moisture content% | ≤1 | GB/T 5480 |
| Hydrophobic rate% | ≥98 | GB/T 10299 |
| Compressive strengthkPa | 20-100 | GB/T 13480 |
| Heating permanent linear change(1000ºC,24h) | -1.3 | GB/T 5480 |
| thermal conductivity(25ºC),W/(m.k) | ≤0.033 | GB/T 10294 |
| Combustion performance level | A(A1) | GB/T 8624 |
| Noise reduction coefficient | 0.9 | GB/T 20247 |
| Long-term service temperatureºC | ≤1000 | GB/T 5480 |
| Acidity coefficient | ≥6 | GB/T 5480 |
| W(AlO)% | ≥40 | GB/T 1549 |
| W(AlO+SiO)% | ≥96 | GB/T 1549 |
a. Excellent flexibility
b. No binding agent, long service life in neutral and oxidizing atmosphere
c. Low heat capacity, low thermal conductivity, excellent thermal stability
d. Excellent airflow erosion resistance and mechanical impact resistance
e. Excellent sound-absorbing properties
Industrial kiln,boiler lining,backing insulation refractory insulation;heat insulation of thermal equipment such as steam engine,gas engine,etc.;flexible thermal insulation material for high temperature pipeline,high temperature gasket,high temperature filtration;thermal insulation of thermal reactor;fire prevention of various industrial equipment;raw materials of modules,folding blocks and veneer blocks;heat preservation and insulation of investment castings;mix with cement to enhance strength;substitute partial pulp for paper making
