Highland Refractory’s Ceramic Fiber Board is a vacuum-formed insulation solution engineered for environments up to 1600°C. By combining high-purity alumina-silica fibers with specialized inorganic binders, we’ve created a rigid board that balances extreme heat resistance with exceptional structural integrity.
Low Thermal Conductivity: Minimizes heat loss and significantly reduces energy consumption.
High Compressive Strength: Maintains its shape and thickness even under mechanical stress and high gas velocity.
Thermal Shock Resistance: Designed for rapid heating and cooling cycles without cracking or spalling.
Precision Machining: Easily cut, drilled, or machined into custom shapes for burner blocks, peepholes, and furnace linings.
（1）Low thermal conductivity,
（2）Low heat capacity, excellent thermal stability
（3）High thermal shock resistance and compressive strength
（4）Good toughness
（1）Industrial kiln wall linings
（2）High temperature kiln linings
（3）High temperature and high heat equipment insulation
（4）Shipbuilding industry insulation and fire protection
（5）Sound insulation and insulation
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PROJECT |
INDEX |
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MODEL |
1260 |
1350 |
1450 |
|
|
Working Temperature（℃≥） |
1100 |
1250 |
1350 |
|
|
Density (kg/m3) |
220-500kg |
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Thermal conductivity by mean temp.( w/m.k ) |
0.085(W/m.k)(400℃) 0.132(W/m.k)((800℃) 0.180(W/m.k)((1000°C) |
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|
Compression strength(Mpa) |
0.5 |
|||
|
Chemical Composition(%) |
AL2O3 |
42~43 |
52~53 |
35 |
|
SIO2 |
53 |
46 |
45 |
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|
ZrO2 |
- |
- |
15-17 |
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|
Fe2O3 |
≤1.2 |
≤0.3 |
≤0.2 |
|
|
Na2O+k2O |
≤0.5 |
≤0.3 |
≤0.2 |
|
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SIZE |
Length1200*Width600 |
Thickness20-30-40-50mm |
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In the modern high-temperature industry, efficiency isn't just a goal; it's a survival requirement. Ceramic Fiber Board, a vacuum-formed rigid refractory insulation, has become the cornerstone for energy-saving furnace linings worldwide.
At Highland Refractory, we combine high-purity Alumina-Silica fibers with advanced bonding technology to produce boards that don't just resist heat—they manage it. This guide provides an in-depth analysis of types, technical specifications, and application logic to help you optimize your thermal equipment.
Unlike flexible blankets, Ceramic Fiber Board is a rigid, self-supporting insulation material. It is manufactured through a specialized wet vacuum forming process.
Fiber Selection: We use spun bulk fibers with a "shot content" (un-fiberized particles) of less than 5%. This ensures a lower thermal conductivity and a higher tensile strength.
Binder Chemistry: A balanced mix of organic and inorganic binders allows the board to have high cold-strength for handling and high hot-strength for service.
Vacuum Compaction: By controlling the vacuum pressure, we achieve precise density distributions, ensuring the board won't warp or delaminate under extreme thermal cycling.
To rank for specific technical queries, we provide detailed data for each grade.
Standard Grade (STD): 1260°C (2300°F). Ideal for general furnace backup insulation.
High Purity Grade (HP): 1260°C (2300°F). Offers lower linear shrinkage and better whiteness for clean-firing environments.
High Alumina Grade (HA): 1350°C (2462°F). Enhanced with Al2O3 for better structural stability.
Zirconia Grade (HZ): 1430°C (2600°F). Contains ZrO2 to resist chemical erosion and extreme heat.
In many scenarios, engineers debate between boards, blankets, or bricks. Here is the decision-making logic:
Structure: Board is rigid; Blanket is flexible.
Gas Velocity: Boards can withstand gas flows up to 30 m/s, whereas blankets may suffer surface erosion at 10 m/s.
Installation: Boards can be machined, drilled, and bolted, making them perfect for furnace doors and removable covers.
Weight: Boards are approximately 75% lighter than IFBs.
Heat Storage: Boards store significantly less heat, allowing for faster furnace cycle times (Startup/Cooldown).
Efficiency: Boards offer a 20-30% lower thermal conductivity, meaning thinner linings can achieve better results.
Highland Refractory's boards are engineered for specific industrial "pain points."
In steel production, the board acts as a critical backup lining for ladles and tundishes. It prevents the steel shell from overheating, which maintains the structural integrity of the vessel and prevents catastrophic breakouts.
For glass tank furnaces, the Zirconia (HZ) grade is essential. It resists the alkaline vapors in the furnace atmosphere. In ceramic kilns, these boards form the ideal "Hot Face" lining for kiln cars, reducing fuel consumption by decreasing the thermal mass of the car.
Used in ethylene heaters and boilers as combustion chamber linings. Their resistance to thermal shock ensures that the lining won't crack during emergency shutdowns.
To maximize service life, follow these engineering standards:
Cutting: Boards can be cut with standard woodworking tools. However, for high-density boards, an electric band saw is recommended for clean edges.
Surface Treatment: For high-velocity areas, apply a Rigidizer (Colloidal Silica) coating. This increases surface hardness and prevents "fiber dusting."
Expansion Joints: When installing large areas, staggered joints (double-layer construction) should be used to eliminate direct "heat paths" to the furnace shell.
Adhesives: Use high-temperature inorganic glue for bonding to steel or brick surfaces. Ensure the surface is dust-free before application.
Why do 1500+ global clients choose Highland Refractory?
Shot Content Control: We keep non-fiberized particles below 5%, resulting in a cleaner, stronger board.
Uniform Density: Our automated drying lines ensure the core of the board is just as dense as the surface, preventing internal "soft spots."
OEM & Custom Shapes: We offer CNC machining for burner blocks, sight holes, and interlocking tongue-and-groove boards.
Certification: Full compliance with ASTM C201 (Thermal Conductivity) and ISO 9001:2015.
Understanding failure is the key to prevention.
Issue: Shrinkage and Gaps. * Cause: Using a board below the required classification temperature.
Fix: Always select a grade 150°C higher than your peak operating temperature.
Issue: Warping.
Cause: Moisture absorption or uneven heating during first-use.
Fix: Ensure dry storage and follow a strict "Bake-out" schedule.
Issue: Surface Peeling.
Cause: Excessive gas velocity or chemical attack.
Fix: Use Zirconia-grade boards and apply surface hardeners.
Q: Are your boards asbestos-free?
A: Yes, 100%. We use Refractory Ceramic Fibers (RCF) or Bio-soluble (AES) fibers.
Q: Can I get a custom thickness?
A: Yes, we produce boards from 3mm up to 100mm.
Q: What is the delivery time for a 20GP container?
A: Standard sizes are shipped in 7-10 days; custom orders take 14-20 days.
Q: Can I obtain free samples of Ceramic Fiber Board?
A: Certainly, we do provide free samples of our Ceramic Fiber Board. You'll just be responsible for covering the shipping expenses to your address. In the case of customized Ceramic Fiber Board samples with unique specifications like extra - high temperature resistance, a nominal charge may be applied, but it will be refunded if you place a significant order in the future.
Q: How much time will it take to receive my order of Ceramic Fiber Board?
A: For our standard stock Ceramic Fiber Board, delivery typically occurs within 4 - 6 business days. However, if you've ordered a customized Ceramic Fiber Board with special features or materials, it might take 8 - 12 business days. For large - volume orders, we'll collaborate with you to determine a suitable delivery timeline.
Q: What kind of packaging is used for Ceramic Fiber Board?
A: Our Ceramic Fiber Board is packaged to safeguard it during transit. Each board is first wrapped in a protective layer of foam to prevent scratches and minor impacts. Then, multiple boards are carefully stacked and placed in a robust wooden crate or a reinforced cardboard box, depending on the quantity. The packaging clearly displays handling instructions such as "Fragile" and "Do Not Stack Heavy Objects" along with all relevant product details.
Q: Which payment methods are accepted for purchasing Ceramic Fiber Board?
A: We accept T/T (Telegraphic Transfer) as a common and reliable payment option. Additionally, we also support PayPal payments for your convenience, allowing for quick and secure online transactions. We are continuously exploring other payment alternatives to make the payment process even more seamless for our customers.
Q: If I receive a damaged Ceramic Fiber Board, what steps should I take?
A: We apologize for any inconvenience caused by the damaged Ceramic Fiber Board. Please reach out to our customer service team promptly. Provide them with clear pictures of the damage and a detailed description. We'll immediately arrange to replace the damaged board with a new, undamaged one at no additional cost to you.
Choosing the right Ceramic Fiber Board is an investment in your facility's long-term efficiency. At Highland Refractory, we provide more than just materials; we provide technical solutions backed by 30 years of manufacturing expertise.
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