POLYCRYSTALLINE MULLITE FIBER BOARD

POLYCRYSTALLINE MULLITE FIBER BOARD

Product Description:

Temp Grade: 1600°C, 1700°C, 1800°C

Density: 300kg/m^₃--600kg/m^₃

Specification:

• 25x600x900/1000mm

• 50x600x900/1000mm

• 75x600x900/1000mm

• 150x600x900/1000mm

Customized specification is acceptable.

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• DESCRIPTION

Polycrystalline mullite fiber board is produced by wet vacuum filtration and pressing molding, which is made of polycrystalline mullite fiber bulk, organi, inorganic binder. The product has excellent strength, anti-erosion and easy to cut.

• PROPERTIES

Ø Good high temperature resistance.

Ø Excellent corrosion resistance.

Ø Low coefficient of thermal expansion.

Ø Small wire shrinkage rate under high temperature.

Ø Easy cut and deep process.

Ø Good resistance to flame and airflow erosion.

• APPLICATION

Ø Industrial kiln lining Heat treatment.

Ø Ladle furnace, bell jar kiln, tunnel kiln, roller kiln.

Ø High temperature fire baffle; Kiln car heat insulation.

Ø Liquid collection tanks and flume in aluminum products industry.

Ø Heat insulation of various high temperature industrial kilns.

• SPECIFICATION

1	Item	Unit	Test Result	Test Result
2	Grade	/	Mullite	Mullite
3	Specification temp	(℃)	1600	1800
4	Working temperature	(℃)	1450	1650
5	Color	/	Pure White	Pure White
6	Density	(kg/m₂)	300-600	300-600
7	Permanent shrinkage Rate of liner (24h, density 300kg/m3)	(%)	≤0.5	≤0.3
7	Permanent shrinkage Rate of liner (24h, density 300kg/m3)	(%)	(1450℃）	(1650℃）
	Thermal conductivity of each heat surface(density 300kg/m3)		0.22（1000℃）	0.22（1000℃）
9	Compression strength (density 280kg/m₃)	(Mpa)	≧0.5	≧0.06
10	Al₂O₃	(%)	68	78
11	Al₂O₃+SiO₂	(%)	99.5	99.8
12	Al₂O₃+SiO₂+ZrO₂	(%)	-	-
13	ZrO₂	(%)	-	-
14	Fe₂O₃	(%)	-	-
15	Na₂O+K₂O	(%)	-	-
16	Thickness	(mm)	25/50/75/150
17	Width	(mm)	600
18	Length	(mm)	900/1000

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