High Strength Ceramic Fiber Board

Product Overview

High strength ceramic fiber board is a rigid insulation material specifically designed for demanding high-temperature applications. Manufactured using a wet vacuum forming process, the product features a highly dense and uniform internal structure, providing excellent mechanical strength and superior resistance to high-velocity gas erosion.

Unlike traditional flexible insulation blankets, this board demonstrates outstanding dimensional stability and deformation resistance at high temperatures, providing long-term reliable structural support and thermal protection for equipment. Its dense structure and smooth surface allow precise machining such as cutting and drilling according to on-site requirements, greatly improving installation convenience and adaptability.

This product is widely used in various high-temperature industrial furnaces, thermal equipment, laboratory electric furnaces, and complex insulation systems. It is particularly suitable for applications requiring high load-bearing capacity, structural strength, and long-term stability, making it an ideal choice for improving operational efficiency and reducing energy consumption.

Product Structure and Manufacturing Process

High strength ceramic fiber boards are produced from high-purity alumina and aluminosilicate raw materials using a wet vacuum forming process. After drying, cutting, and surface finishing, rigid boards with uniform structure and smooth surfaces are produced.

Depending on application requirements, some products may incorporate reinforcing fibers or special binders to further improve mechanical properties and environmental adaptability.

Product Advantages

(1) High Temperature Structural Stability

Maintains stable shape under long-term high-temperature conditions without deformation or powdering.

(2) Excellent Thermal Insulation Performance

Low thermal conductivity effectively reduces heat loss and improves equipment energy efficiency.

(3) High Strength and Erosion Resistance

Excellent resistance to airflow erosion, suitable for high-velocity gas environments.

(4) Easy and Flexible Machining

Can be sawed, cut, drilled, and ground, allowing convenient on-site installation and adaptation.

(5) Good Chemical Stability

Resistant to acid and alkali corrosion, suitable for chemically complex industrial environments.

(6) Safe and Environmentally Friendly

Asbestos-free and non-toxic

No harmful emissions during production or use

Complies with EU RoHS and REACH environmental standards

Typical Applications

Industrial furnace linings (metallurgical furnaces, heat treatment furnaces, glass furnaces)

High-temperature hot air duct linings

Backup insulation systems for thermal equipment

Furnace doors and covers for heating equipment

Power boiler insulation layers

Flue fireproof insulation layers

Fire door cores and building fire protection partition systems

Technical Specifications

Ceramic Fiber Board Installation Guidelines

To ensure safe and effective insulation and structural support performance in high-temperature equipment, please follow the installation recommendations below:

I. Pre-Installation Preparation

01 Material Inspection

Verify board specifications, thickness, and dimensions meet design requirements

Ensure boards are intact without cracks, delamination, or damage

02 Surface and Environment Requirements

Installation surfaces must be flat, clean, and dry

Free from oil, rust, and loose debris

Furnace shells should be pre-welded, derusted, and corrosion protected

03 Tool Preparation

Recommended tools: electric or pneumatic cutting tools (marble cutter, angle grinder)

Use dedicated ceramic fiber cutting blades

Prepare PPE including dust masks, safety goggles, and gloves

II. Installation Key Points

01 Cutting and Machining

Keep boards stable during cutting and cut slowly along marked lines

Use low-speed drills for holes and support the back side to prevent cracking

02 Fixing Methods

Typically fixed using welded anchors combined with mechanical fastening

Anchors (such as ceramic cups or anchor pins) should be evenly spaced (usually 200–300 mm)

For multilayer installation, stagger joints to avoid thermal bridges

03 Joint Treatment

Board joints should be tightly fitted

Large gaps should be filled with ceramic fiber blankets or fiber cement

For high-temperature areas (>1000°C), high-temperature adhesives are recommended

04 Expansion Allowance

Allow for thermal expansion gaps (typically 1–2 mm)

Expansion joints are recommended for large-area installations

III. Safety and Operating Requirements

01 Personnel Protection

Wear dust masks (N95 or higher recommended) and safety goggles during cutting

Avoid direct skin contact with fibers

Clean thoroughly after installation work

02 Work Environment

Ensure good ventilation to reduce dust accumulation

Open flames are strictly prohibited at the job site

03 Prohibited Actions

Do not step on unsecured boards

Do not strike boards with hard objects

IV. Post-Installation Inspection

01 Visual Inspection

Check installation flatness

Verify anchors are secure

Ensure joints are properly sealed

Confirm no visible gaps or uncovered areas

02 Furnace Dry-Out Recommendation

Gradual heating is recommended before first use

Avoid rapid heating to prevent cracking

Extend holding time at 300–600°C to allow binder curing

V. Special Notes

Ceramic fiber boards are strong but brittle-handle carefully

Store vertically to avoid damage

For corrosive environments, select chemically resistant grades

For complex installations, consult our technical team before installation

Installation drawings, videos, and on-site technical support are available upon request. We are committed to providing professional solutions to ensure safe and efficient system operation.

FAQ

Q1: What temperatures can ceramic fiber boards withstand?
A: Our product range covers long-term service temperatures from 1050°C to 1350°C. Material selection should be based on furnace peak temperature, thermal cycling frequency, and atmosphere conditions.

Q2: What advantages do ceramic fiber boards have compared with traditional insulation materials?
A: Ceramic fiber boards provide lower thermal conductivity, higher temperature ratings, better mechanical strength, stronger resistance to airflow erosion and vibration, and more stable structures after installation.

Q3: Do ceramic fiber boards meet environmental and safety standards?
A: Yes. The products are asbestos-free and comply with EU RoHS and REACH standards. Biosoluble fiber formulations are also available for higher safety requirements.

Q6: What installation precautions should be considered?
A: Ensure clean surfaces, use proper anchors, and distribute loads evenly. Use dust-controlled cutting tools and proper PPE. Stagger joints in multilayer installations and allow expansion gaps. Detailed installation manuals are available upon request.

Q7: How do I know when ceramic fiber boards need replacement?
A: Replacement should be considered if:

Large cracks, delamination, or structural loosening appear

Severe surface powdering reduces thickness

Melting or severe erosion occurs on the hot face

Insulation performance declines and back-side temperature rises

Regular inspection is recommended, especially under harsh operating conditions.

If you require product selection assistance, customization, or samples for testing, please contact the SUNTHERM engineering team. We will provide professional product solutions and full technical support based on your operating conditions.

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