Product Description：
As the crucial and staple materials for producing ceramic fiber blanket, board, module and other formed products, ceramic bulk fiber is normally manufactured from high purity raw materials-alumina powder, silica sand through unique production techniques of spun or blowing, these bulks are loose, long and flexible with fine thermal properties, at present, the chopped fibers are vacuum formed production, the lubricated bulk fibers are the fiber for textiles are all available. Ceramic bulk fibers Serve as ab ideal filler for various types of refractory lining and insulation tools.
Features Of Ceramic Fiber Bulk：
*Good springiness for fiber
*Excellent strength and resistance to blowing
*Excellent chemical stability, resistance to erosion
*Low thermal conductivity
*Low thermal shrinkage
*Excellent sound absorption
Applications Of Ceramic Fiber Bulk：
*Filling insulation and joint sealing
*Back-up lining for industrial furnaces
*Fireproof materials for construction
*High temperature materials for filtration
Specifications Of Ceramic Fiber Bulk：
- Alumina contents range from 40% to45%
- Widely used throughout metallurgical industry
| Properties | STD BULK | HP BULK | HZ BULK |
|---|---|---|---|
| Chemical Composition(%) | |||
| Al₂O₃ | ≥44 | ≥45 | ≥34 |
| SiO₂ | ≥52 | ≥54 | ≥50 |
| Fe₂O₃ | ≤1.0 | ≤0.5 | ≤0.5 |
| ZrO₂ | – | – | ≥15 |
| Na₂O | ≤1.0 | ≤0.2 | ≤0.2 |
| Specification Temp. (°C) | 1260 | 1260 | 1430 |
| Shot content (%) | ≤15 | ≤15 | ≤12 |
| Fiber Diameter(μm) | 3.5 | 3.5 | 3.5 |