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Ceramic Fiber Blanket

Description

Ceramic fiber blanket presents unparalleled refractories and thermal insulation due to its long spun fiber needling technique. These blankets offer superior insulating performance, flexibility and resilience. Ceramic fiber blanket products are unaffected by most chemicals (except hydrofluoric & phosphoric acids and concentrated alkali).Thermal and physical properties are retained after drying following wetting by oil, steam or water. Ceramic fiber blankets are completely inorganic, so there are no fumes when heating for the first time.

 

Features

High tensile strength and Low shrinkage

Good resiliency with low heat storage

Low thermal conductivity

Thermal shock resistance

Good sound absorption

 

Typical Applications

Annealing furnaces

Furnace door linings and seals

Soaking pit covers and seals

Furnace hot face repairs

Reheating furnace and ladle covers

 

Typical Parameters

Description

STD RCF Blanket

HP RCF Blanket

HZ RCF Blanket

Chemical Composition (%) 

 

Al2O3

≥44

≥45

≥34

SiO2

≥52

≥54

≥50

Fe2O3+TiO2

≤1

≤0.5

≤0.5

ZrO2

-

-

≥15

K2O+Na2O

≤1

≤0.2

≤0.2

Physical Properties 

Density (kg/m³)

96

128

96

128

160

96

128

160

Classification Temperature ()

1260

1260

1430

Fiber Diameter (um)

3.5

3.5

3.5

Shot Content (%)

≤15

≤15

≤12

Linear Shrinkage after heating (%)

1000*24h≤2.5

1100*24h≤2.5

1350*24h≤3.5

  Thermal Conductivity (W/m.k) 

 

 

 

400

0.095

0.090

0.124

0.114

0.101

0.138

0.122

0.118

500

0.123

0.119

0.145

0.135

0.120

0.179

0.153

0.149

600

0.155

0.152

0.202

0.191

0.175

0.233

0.184

0.172

Tensile Strength (MPa) 

0.050

0.040

0.050

0.060

0.075

0.050

0.060

0.075

 

 

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