Ceramic Fiber ProductsFiber boards
Ceramic Fiber Board
Rigid ceramic fiber board with excellent toughness, strength and wind-erosion resistance, light and easy to cut, for kilns, pipes and other thermal insulation equipment. Standard, high-purity, high-alumina and zirconia grades.
- Grades / types
- STD, HP, HA, HZ
Product overview
Ceramic fiber board is hard, with excellent toughness and strength and excellent resistance to wind erosion. It is light, does not expand when heated, is convenient to install and easy to shape or cut.
It is an energy-saving material for kilns, pipes and other thermal insulation equipment.
Key characteristics
- Hard, with excellent toughness and strength
- Excellent resistance to wind erosion
- Light weight, no expansion on heating
- Easy to shape and cut
- Convenient installation
Technical data
| Property | Unit | STD — Standard | HP — High purity | HA — High alumina | HZ — Zirconia-containing |
|---|---|---|---|---|---|
| Al₂O₃ | % | ≥45 | ≥45 | ≥52 | 32~33 |
| Al₂O₃+SiO₂ | % | 97 | 99 | 99 | — |
| ZrO₂ | % | — | — | — | ≥15 |
| Fe₂O₃ | % | ≤1.0 | 0.2 | 0.2 | 0.2 |
| K₂O+Na₂O | % | ≤0.5 | 0.2 | 0.2 | 0.2 |
| Density | kg/m³ | 260/320 | 260/320 | 260/320 | 260/320 |
| Permanent Linear Shrinkage (After24h; Density 320 kg/m3) | % | ≤-3 (1000℃) | ≤-3 (1100℃) | ≤-3 (1260℃) | ≤-3 (1360℃) |
| Thermal Conductivity (Density 285kg/m3) | W/(m·K) | 0.085 (400℃) | 0.085 (400℃) | 0.085 (400℃) | 0.085 (800℃) |
| Thermal Conductivity (Density 285kg/m3) | W/(m·K) | 0.132 (800℃) | 0.132 (800℃) | 0.132 (800℃) | 0.132 (1000℃) |
| Thermal Conductivity (Density 285kg/m3) | W/(m·K) | 0.18 (1050℃) | 0.18 (1000℃) | 0.18 (1000℃) | 0.18 (1000℃) |
| Crushing Strength | MPa | 0.5 | 0.5 | 0.5 | 0.5 |
| Working Temperature | ℃ | 1000 | 1100 | 1260 | 1360 |
Applications
- Kilns
- Pipes
- Other thermal insulation equipment
Where Refractories Are Used
Industry
Steel & Iron
Refractories in iron and steel production are used in the blast furnace, hot blast stove, cast house and coke oven on the ironmaking side, and in the hot metal ladle, converter, electric arc furnace, steel ladle, tundish, RH degasser and reheating furnace on the steelmaking side. Material selection varies by operating zone and includes silica, high alumina, magnesia, magnesia-carbon, alumina-silicon carbide-carbon and silicon carbide products together with castables, ramming mixes and mortars.
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Nonferrous Metals
Refractories for nonferrous metals divide into two groups. For aluminium they line the electrolysis cell side wall, corners and bottom, the smelter and the holding furnace, using silicon nitride bonded silicon carbide, carbon-based materials, low cement and non-stick castables and insulation. For copper, zinc, lead and nickel they are magnesia-chrome bricks in directly bonded, semi-rebonded and fused rebonded types.
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Glass
Refractories in the glass industry line the melting tank, the superstructure, the working end and forehearth, the throat and the regenerator. Different furnace types take different materials, in fused, siliceous and magnesia groups: silica, clay, high alumina, sillimanite, mullite, fused mullite, zirconia-corundum, fused corundum and zirconium-containing refractory bricks.
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Chemical & Petrochemical
Refractories in chemical and petrochemical plants line coal water slurry and residue oil gasifiers, secondary reformers, carbon black reactors, hydrogen production furnaces, gas generators and cracking furnaces. The technical reference's gasifier schemes build the lining from a high chrome brick working face, a chrome corundum brick backing, an alumina bubble brick insulating layer, refractory castables and a ceramic fibre coating or felt against the shell.
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Cement
Refractories in cement plants line the preheater, the calciner and tertiary air duct, the rotary kiln from the kiln inlet through the safety, transition and burning zones to the kiln outlet, the kiln hood and burner, and the grate cooler. RISING's kiln configuration tables assign alkali-resistant bricks and castables to the preheater system, silicon mullite, magnesia spinel and magnesia-chrome bricks to the kiln zones, and low-cement and steel-fiber castables to the kiln mouths, hood and cooler.
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Available grades, shapes and sizes
Available grades
- STD
- HP
- HA
- HZ
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Services that work with this family of materials.
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Technical Consultation
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