Blanket

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Description

Zhongzi 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. Zhongzi 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

Blanket with Aluminum Foil

Blanket

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