Ceramic Fiber Insulation Blanket

Ceramic Fiber Insulation Blanket is manufactured by melting coal gangue, coke gem, alumina, silica, zirconia and other high-quality raw materials through an electromelting process, followed by a fiber spinning process. After needling and heat treatment, the fibers are evenly interwoven to achieve high tensile strength and structural stability. The product contains no bonding agents and offers excellent resistance to chemical erosion. Ceramic Fiber Insulation Blanket is widely used in applications requiring fire resistance, thermal insulation, and heat preservation, including industrial furnaces, kilns, heat treatment equipment and high-temperature environments.

Ceramic Fiber Blanket Features

Product Type			Category Temperature℃				Recommended Temperature℃
Common Type			1000				≤800℃
Standard Type			1200				≤1000℃
High Purity Type			1250				≤1100℃
High Aluminum Type			1350				≤1200℃
Zirconium-containing			1400				≤1250℃
Chromium Containing Type			1500				≤1350℃
Product Classification		Ordinary Type		Standard Type	High Purity Type	High Aluminum Type		Zirconium Type	Implementation Standard
Product Code		SZJN-PT-T		SZJN-BZ-T	SZJN-GC-T	SZJN-GL-T		SZJN-HG-T	GB/T 16400-2015
Operating Temperature (℃)		950		1000	1100	1200		1350
Density (kg/m³)		96~128
Pellet Content (%)	Particle Size >0.212 mm	≤20		≤20	≤20	≤15		≤15
Heating Permanent Linear Change		950 ℃×24 h ≤4		1000 ℃×24 h ≤4	1100 ℃×24 h ≤4	1200 ℃×24 h ≤4		1350 ℃×24 h ≤4
Thermal Conductivity {W/(m·K)}	Average Temperature 500 ℃	≤0.161			≤0.156			≤0.153
Tensile Strength (MPa)		≥0.04						—
Chemical Composition (%)	Al₂O₃	≥40		≥43	≥44	≥52		≥52
	Al₂O₃+SiO₂	≥95		≥96	≥98	—		—
	Al₂O₃+SiO₂+ZrO₂	—		—	—	≥99		≥99
	ZrO₂	—		—	—	≥15		≥15
	Fe₂O₃	≤1.0		≤1.2	≤0.2	≤0.2		≤0.2
Note: Regular models: (length) 3000/4000/5000/7200/14000 × (width) 610 × (thickness) 10/20/30/40/50/60 (mm) Packing style: white woven bag

- ♦ Low thermal conductivity: Helps reduce heat transfer through furnace walls, kiln structures, pipes and industrial equipment.

- ♦ Thermal shock resistance: Suitable for equipment that experiences repeated heating and cooling cycles.

- ♦ Needled construction: Interlocked fibers provide handling strength and help the blanket resist tearing during cutting and installation.

- ♦ Binder-free composition: The blanket does not rely on an organic bonding agent to maintain its structure.

- ♦ Multiple temperature grades: Standard, high-purity, high-alumina and zirconium-containing options support different process temperatures.

- ♦ Chemical stability: Provides resistance to many common industrial operating environments; compatibility should still be confirmed for specific chemicals.

- ♦ Flexible roll format: Can be cut and fitted around curved surfaces, pipes, furnace doors and irregular equipment profiles.

- ♦ Low-weight insulation system: Helps reduce the structural load compared with many dense refractory lining materials.

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