Refractory ceramic fiber, also known as Alumina Silicate Wool, is a type of man-made vitreous fiber primarily composed of alumina and silica. This material is extremely versatile and can be spun or blown into bulk form, needled into blankets, folded into modules, converted into papers, boards, and shapes, die-cut into gaskets, twisted into yarns, woven into rope and cloth, and blended into liquid binders for mastics and cements.
Bio-soluble fiber products are alkaline earth silicate (AES) fibers specially engineered for superior performance in high temperature insulation applications. These fibers have low bio-persistence, ensuring they are not classified as carcinogenic by IARC or under any national regulations worldwide.
Polycrystalline fiber is manufactured through a ‘sol-gel method’ using aqueous spinning solutions. It is designed for applications requiring temperatures above 1300°C (2372°F) and is well-suited for demanding chemical and physical conditions.
High-temperature insulation: In furnaces, kilns, and heat treatment equipment.
Soundproofing and acoustic absorption: In buildings, vehicles, and marine applications.
Fireproofing: As fire-resistant materials in structures.
Chemical and metallurgical industries: For thermal insulation and corrosion protection.
Automotive and aerospace: Thermal insulation in engines and aerospace equipment.
Environmental and energy sectors: Insulation in solar panels and wind turbines.
Electronics and electrical: Insulation for electronic devices and electrical equipment.
Other applications: Including glass manufacturing, ceramics, petrochemicals, and pharmaceuticals.
Heat Transfer Methods: Conduction, convection, and radiation
Thermal Conductivity: Solid > liquid > gas
Composition of Refractory Ceramic Fiber: Fiber and air
Main Heat Transfer Methods in Refractory Ceramic Fiber: Conductive heat transfer through the fiber, convective heat transfer through the gas, and radiative heat transfer through the fiber
Refractory ceramic fiber insulation container loading is the third generation of refractory materials, developed after traditional refractory materials and monolithic refractory materials. Compared to the previous two types of materials, it has better high-temperature performance, better thermal insulation properties, lighter weight, and superior insulation effect. However, ceramic fiber also has some disadvantages in its application: its stability is relatively poor, and its resistance to erosion, airflow scouring, and spalling is not very good. When exposed to high temperatures for a long period, it undergoes crystallization and grain growth. Additionally, factors such as the erosion of corrosive furnace gases and the scouring effect of airflow can cause it to easily deteriorate and fall off.
| Ceramic Fiber Board | ||||
| Items | F-1260SB | F-1260PB | F-1350AB | F-1430ZB |
| Grade | Standard | High pure | High Alumina | Zirconia |
| Classification temperature | 1260℃ 2300℉ | 1260℃ 2300℉ | 1350℃ 2462℉ | 1430℃ 2600℉ |
| Loss of ignition , % | ≤6 | ≤6 | ≤6 | ≤6 |
| Color | White | White | White | White |
| Modules of Rupture, MPa | ≥0.3 | ≥0.3 | ≥0.3 | ≥0.3 |
| Modules of Rupture, psi | ≥43.5 | ≥43.5 | ≥43.5 | ≥43.5 |
| Permanent linear shrinkage,% | ≤3.0 | ≤3.0 | ≤3.5 | ≤3.5 |
| 1000℃x24h | 1100℃x24h | 1200℃x24h | 1350℃x24h | |
| Typical Density | ||||
| kg/m3 | 250 300 360 | 250 300 360 | 300 360 | 300 360 |
| lb/ft3 | 16 19 22 | 16 19 22 | 19 22 | 19 22 |
| Compressive Strength, MPa 10% relative deformation | 0.15 0.25 0.30 | 0.15 0.25 0.30 | 0.25 0.30 | 0.25 0.30 |
| Psi | 21 36 43 | 21 36 43 | 36 43 | 36 43 |
| Thermal Conductivity, W/m·K | ||||
| 400℃ | 0.08 | 0.07 | 0.07 | 0.07 |
| 600℃ | 0.11 | 0.1 | 0.1 | 0.1 |
| 800℃ | 0.14 | 0.14 | 0.13 | 0.13 |
| 1000℃ | 0.19 | 0.19 | 0.19 | 0.18 |
| Standard Dimension, mm | ||||
| Length | Width | Thickness | Carton dimensions | |
| 900 | 600 | 950x650x(150 or 170) | ||
| 914 | 610 | 964x660x(150 or 170) | ||
| 1200 | 600 | 1250x650x(150 or 170) | ||
| 1220 | 610 | 1270x660x(150 or 170) | ||
| 1200 | 1000 | 20, 25, 30, 40, 50 | 1250x1050x(150 or 170) | |
| 1200 | 1200 | 1250x1250x(150 or 170) | ||
