Ceramic Fiber Inorganic Board

1. Product Introduction

This product offers excellent heat resistance, thermal insulation, and mechanical strength, with a smooth surface and dense structure. It is widely used for lining insulation, fire protection, and heat insulation in various high-temperature equipment, as well as for high-temperature structural support.

Ceramic fiber inorganic board overcomes the challenges of traditional fiberboard, such as pulverization, low strength, and weathering resistance, making it an ideal material for industrial furnace backing insulation systems. It can also be used as a refractory component in complex thermal environments. Standard, reinforced, and corrosion-resistant product lines are available to meet specific application requirements.

2. Product Structure and Manufacturing Process

Ceramic fiber inorganic board is primarily composed of a proportional mixture of high-purity ceramic fiber and an inorganic high-temperature binder. It is manufactured through a fully automated vacuum forming, drying, and cutting process. The uniform fiber distribution and high strength of this product ensure that it maintains the excellent thermal insulation properties of the ceramic fiber while also providing load-bearing capacity and mechanical shock resistance. Fiber Material: High-temperature ceramic fibers primarily composed of alumina and silica

Binder: High-temperature-resistant inorganic binder systems (such as silicates and aluminates)

Molding Method: Vacuum filtration, followed by drying and surface compaction

3. Main performance characteristics

(1) Excellent high temperature resistance

The long-term working temperature can reach 1260℃, and some high-purity products can withstand temperatures above 1350℃, suitable for extreme high temperature environments.

(2) Low thermal conductivity and good insulation effect

The porous structure inside the board forms a "static air layer", which effectively prevents heat conduction and significantly reduces heat loss.

(3) High strength and wind erosion resistance

The product has strong rigidity, and its compression, bending and impact resistance are significantly better than flexible fiber materials. It can be used in strong impact areas such as furnace tuyere.

(4) Dimensional stability, not easy to shrink and deform

It has good dimensional stability under repeated high temperature cycles, excellent thermal shock resistance, and is not easy to crack or peel off.

(5) Non-toxic and harmless, green and environmentally friendly

It is made of all inorganic components, does not contain asbestos or harmful gases, and there is no smoke and dust pollution during production and use, meeting the requirements of various environmental protection regulations.

(6) Convenient construction and easy mechanical processing

It can be cut, slotted, drilled, etc., which is convenient for construction, installation and structural forming.

4.Technical parameters

ITEM	STD	HP	HA	HTZ
Classification Temperature(C°)	1260	1260	1360	1430
Working Temperature(C°)	≤1000	≤1100	≤1200	≤1300
Density(KG/m³)	320-500
Organic Content%	≤1.5
Heating Shrinkage(%)	1000℃×24h≤ -2	1100℃×24h≤ -2	1200℃×24h≤ -2	1350℃×24h≤ -2
Thermal Conductivity(500℃)	≤0.05
Al₂O₃	36-38	39-42	45-47	-
Al₂O₃+SiO₂	≥96	≥98	≥99	-
Al₂O3+SiO₂+ZrO₂	-		-	≥99
ZrO₂	-		-	≥15
Fe₂O₃	<0.5	<0.5	<0.5	<0.5
Na₂O+K2O+Fe2O₃	<0.9	<0.9	<0.9	<0.9

Note: Technical parameters may vary according to different specifications and models, and customized development is supported.

5. Product Classification

(1) Standard Ceramic Fiber Inorganic Board: Suitable for most general high-temperature insulation environments, with high cost performance;

(2) Reinforced Ceramic Fiber Board: Adding reinforcing fibers to improve the compressive and flexural properties, suitable for load-bearing or high wind speed places;

(3) High-purity Ceramic Fiber Board: Alumina content ≥45%, suitable for equipment with high chemical purity requirements;

(4) Corrosion-resistant Ceramic Fiber Board: Suitable for special thermal environments with acid, alkali or corrosive gases;

(5) Composite Coating Type: Surface sprayed with corundum coating and zirconium coating to enhance wind erosion resistance and alkali resistance.

6. Main Applications

Industrial furnace lining backing insulation (such as trolley furnaces, roller hearth furnaces, bell-shaped furnaces, etc.)

Refractory door cores, fire walls, and flue insulation structures

Thermal protection barriers for high-temperature equipment (such as hot air ducts, electric heating boxes, and combustion chambers)

Molten metal insulation panels

Insulation systems for new energy battery equipment and photovoltaic heat treatment equipment

7. Packaging and Transportation

Packaging: Standard packaging is in cartons or wooden boxes with a moisture-proof inner plastic film.

Transportation: Suitable for domestic transport and container export.

Storage Recommendations: Keep in a well-ventilated, dry environment away from moisture and acidic or alkaline gases.

Shelf Life: 12 months under normal operating conditions with no degradation.

Selection recommendations

Application Type	Recommended density	Recommended thickness	Special Notes
Furnace lining backing layer	300～400 kg/m³	25～50 mm	Combined with anchor installation to improve structural stability
High temperature air duct	350～450 kg/m³	30～75 mm	It is recommended to use reinforced or coated products
Fireproof components	280～350 kg/m³	15～40 mm	Can be used in Class A non-combustible fireproof structures
Pressure-bearing parts	≥450 kg/m³	≥50 mm	Give priority to high-strength reinforced products

9. FAQ

Q1: Will ceramic fiber inorganic board shed or crack?

A1: This product is vacuum-formed, resulting in a dense internal structure. It will not shed or crack during use. An optional surface coating further enhances wind erosion resistance.

Q2: Can it be fabricated on-site?

A2: We support on-site machining such as sawing, drilling, and grooving. We can also prefabricate custom-shaped boards according to drawings for quick on-site installation.

Q3: What is the difference between inorganic board and ceramic fiber blanket?

A3: Inorganic board is a rigid structure with strong load-bearing and impact resistance, suitable for areas requiring dimensional stability and high strength. Ceramic fiber blanket, on the other hand, is a flexible material suitable for wrapping or stitching insulation structures.

Ceramic fiber inorganic boards, with their outstanding high-temperature resistance, thermal insulation, and mechanical strength, have become an irreplaceable key material in high-temperature energy-saving and insulation projects. They play a vital role in the steel, metallurgy, glass, power, and chemical industries, as well as in emerging fields such as new energy and environmental protection.

We offer both standard products and customized services. Please feel free to contact us for samples, selection advice, and technical support. We look forward to working with you to create more efficient and safer high-temperature thermal systems.

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