
Aluminum silicate ceramic fiber boards are made primarily from aluminosilicate fiber bulk through processes such as fiber treatment, slag removal, and vacuum forming. They offer low slag content, precise dimensions, good flatness, high strength, light weight, and excellent thermal shock resistance. The product has excellent uniformity in density, hardness, and strength throughout the board, allowing it to be precisely machined, including drilling, cutting, and other processing operations. Main products include ceramic fiber felt, ceramic fiber boards, and fire-resistant panels.
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Project/Product Name |
Standard |
Standard Type |
High Purity |
High-alumina Type |
Zirconium-containing Type |
|
|
Classification Temperature (℃) |
1100 |
1260 |
1300 |
1400 |
1430 |
|
|
Operating Temperature (℃) |
<1000 |
1050 |
1100 |
1200 |
1350 |
|
|
Color |
white |
white |
white |
white |
white |
|
|
Bulk Density (Kg/M3) |
220 |
220 |
220 |
220 |
220 |
|
|
600 |
600 |
600 |
600 |
600 |
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|
Permanent Linear Shrinkage (%) (Bulk Density 320 Kg/M³) Insulation For 24 hours |
-4 |
-3 |
-3 |
-3 |
-3 |
|
|
(1000℃) |
(1000℃) |
(1100℃) |
(1200℃) |
(1350℃) |
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|
Thermal Conductivity (W/m.K) and Bulk Density (285 kg/m³) at Various Hot Surface Temperatures |
0.085 (400℃) |
0.085 (400℃) |
0.085 (400℃) |
0.085(400℃) |
0.085(400℃) |
|
|
0.132 (800℃) |
0.132 (800℃) |
0.132 (800℃) |
0.132(800℃) |
0.132(800℃) |
||
|
0.180 (1000℃) |
0.180 (1000℃) |
0.180 (1000℃) |
0.180(1000℃) |
0.180(1000℃) |
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|
Tensile Strength (MPa) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
|
|
Chemical Composition (%) |
Al2O3 |
44-45 |
45-46 |
47-49 |
52-55 |
39-40 |
|
Al2O3+SiO2 |
96 |
97 |
99 |
99 |
- |
|
|
Al2O3+SiO2+ZrO2 |
- |
- |
- |
- |
99 |
|
|
ZrO2 |
- |
- |
- |
- |
15-17 |
|
|
Fe2O3 |
<1.2 |
<1.0 |
0.2 |
0.2 |
0.2 |
|
|
Na2O+K2O |
≤0.5 |
≤0.5 |
0.2 |
0.2 |
0.2 |
|
|
Product Dimensions (mm) |
Commonly used sizes: 600×400×50mm, 900×600×50mm; other sizes are made according to user requirements. |
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■ Low thermal conductivity and low heat capacity
■ Excellent thermal stability and thermal shock resistance
■ High compressive strength and good toughness
The production process of aluminum silicate ceramic fiber board generally begins with transferring fiber blankets (felts) to a mesh belt conveyor using a curtain conveyor. The blankets are then fed into an impregnation tank containing adhesive, where they are fully impregnated. Next, the adhesive-impregnated blankets are conveyed to pressure rollers, where excess adhesive is squeezed out and the thickness of the wet fiber felt is adjusted. The wet felt is then transferred by a curtain conveyor, cut to the required size, and finally packaged and sealed in plastic bags.

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■ Industrial kiln wall linings and masonry insulation layers
■ High-temperature kiln linings, kiln cars, furnace doors, and temperature partition plates
■ Insulation and heat retention for high-temperature equipment
■ Thermal insulation, fire protection, soundproofing, and electrical insulation for aerospace and shipbuilding industries
■ Gas-fired wall-mounted boilers and insulation for household appliances
■ Soundproofing for elevator shafts
Inner packaging: Sealed in moisture-proof plastic film
Outer packaging: Cardboard boxes or woven bags (customizable)
Packaging form: Flatbed or pallet packaging
Export packaging: Reinforced pallets available; suitable for sea freight and long-distance transportation
Labeling: Specifications, density, size, and batch number are clearly indicated
Q1: What is the difference between ceramic fiber boards and ceramic fiber blankets?
A: Ceramic fiber boards offer higher rigidity and strength, making them ideal for flat surfaces, while ceramic fiber blankets are more flexible and better suited for complex or irregular shapes.
Q2: Can aluminum silicate ceramic fiber boards be used as a hot-surface material?
A: Yes, they can be used as a hot-surface material within appropriate temperature limits, though the specific application should be determined based on the operating conditions.
Q3: Can custom sizes and thicknesses be provided?
A: Yes, the boards can be customized to meet specific size and thickness requirements.
Q4: Will the boards shrink if exposed to high temperatures for extended periods?
A: Under normal operating conditions, they exhibit minimal shrinkage and maintain stable performance.
Q5: Are these boards suitable for export projects?
A: Yes, they are compatible with export packaging and can be used in international project applications.
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