Ceramic fiber cottons are irregular fibrous loose cotton produced by spraying or spinning high purity raw materials after melting, which can be used to produce other ceramic fiber products, such as blanket, felt, board, paper, textiles, etc., and can also be directly used to fill the irregular gaps of refractory materials or difficult to construct parts, in order to play the role of insulation preservation. Among them, the diameter of the flick silk cotton’s fiber is 3~5㎛, the length is 150-250mm, and the strength is high. The diameter of the spray blown cotton’s fiber is 2 ~ 3㎛, the length is 100 ~ 200mm, and its thermal conductivity is good. Its characteristics are low heat capacity, low thermal conductivity, excellent chemical stability, excellent thermal stability, excellent tensile strength, excellent sound absorption, heat insulation performance.
| INDEX PRODUCT | STD | HA | HZ |
| Classification Temperature ( ℃ ) | 1260 | 1360 | 1430 |
| Slag Content ( % ) ≤ | 15 | 15 | 12 |
| Fiber Diameter (㎛) | 3~5 | ||
| Al2O3 ( % ) ≥ | 45 | 50 | 39 |
| Fe2O3 ( % ) ≤ | 1.0 | 0.2 | 0.2 |
| Al2O3+SiO2 ( % ) ≥ | 98 | 99 | 83 |
| ZrO2 ( % ) ≥ | 15 | ||