alumina brick, description about Hollow Alumina Sphere Bricks on China Suppliers Mobile

Specifications

Hollow Alumina Sphere Bricks
1,Hollow Alumina Sphere Bricks
2,high temperature resistance
3, low thermal conductivity

Hollow Alumina sphere bricks are sintered at high temperture after molding using hollow alumina sphere, corundum powder,and calcinedpowders mixed in definite proportion as raw material.

Characteristic

1,high temperature resistance,

2,low thermal conductivity,

3,good thermal insulation,

4,good chemical stability (acid-base erosion resistance ),

5, low bulk density (lighter than the same kind of material ,thin kiln wall, low cost ) .

Scope of application

They are widely used in inner linings of various non-contacted melt high temperature kiln and thermal insulating layers of high temperature kilns.

Physical and Chemical Indexes of Hollow Alumina Sphere Bricks
Name / Indexes/ Item		MLQ-1.5	LQ-1.2	LQ-1.5	LQ-1.7
Chemical composition	Al₂O₃ % ≥	84	98.5	98.5	98.5
	Fe₂O₃ % ≤	0.8	0.3	0.3	0.3
	SiO₂ % ≤	15	1.0	1.0	1.0
Bulk density g/m³≤		1.5	1.2	1.5	1.7
Compressive strength at normal temperature MPa≥		16	3	12	15
Porosity % ≥		58	62	60	58
Soften point at 0.1MPa KD°C≥		1650	1650	1700	1700
Fire resistant (°C)≥		1800	1800	1800	1800
Thermal conductivity Hot side 1000°C W/m.k≤		1.2	0.95	1.05	1.15

Place of Origin	Shandong, China
Shape	Brick
Material	Alumina Block
SiO2 Content (%)	1.0
Al2O3 Content (%)	98.5
MgO Content (%)
CaO Content (%)
Refractoriness (Degree)	1770°< Refractoriness< 2000°
CrO Content (%)
SiC Content (%)
Model Number	LQ-1.2
Brand Name	Shandong leibao

Hollow Alumina Sphere Bricks

Product Features

Specifications

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