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Zhengzhou Rongsheng Kiln Refractory Co., Ltd.
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Al2O3 55% - 85% High Alumina Refractory Brick High Alumina Lining Fire Brick

Zhengzhou Rongsheng Kiln Refractory Co., Ltd.
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Al2O3 55% - 85% High Alumina Refractory Brick High Alumina Lining Fire Brick

Brand Name : RSNC
Certification : CE,CQC,ISO9001
Place of Origin : Henan
MOQ : 1 mt
Price : USD100-500/MT
Supply Ability : 1000mt per month
Delivery Time : within 30days upon receipt of prepayment
Packaging Details : wooden pallet with paper each layer, wrapped with thick paper and PVC film outside.
Al2O3 (%) : 60-80
Refractoriness : 1790
Bulk density(g/cm3) : 2.33-2.55
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Category of Refractory Brick/Fire Brick:
a) According the made method, it can be divided into burnt brick, unburned brick, and electric smelting brick.
b) According the shape and size, it can be divided into standard brick, general brick and abnormal shape brick.
c) According the content of the Al2O3, it can be divided into fire clay brick and high alumina brick.
Production process:
The production process of High Alumina Bricks can be divided into as following process:
Raw material mixing, molding, sintering, selection, packing, delivery.
1) Generally, High Alumina brick was molded by dry pressing.
2) By means of mixing the material uniformity in proportion and ageing mixture some time. Then, pour some powders into the mold and dry pressing.
3) After dry pressing, the adobe needs to be pushed in the drying kiln to stove or stay in the air to dry. This progress will need about 3-5 days.
4) After this progress, then push the adobe into the tunnel furnace or shuttle kiln to burn around 1300C. This progress will be need about 5-7 days.
5) After burning, the finished high alumina brick will be packed on pallet.
Features:
Resistance to High temperature, Resistance to erosion, resistance to abrasion;
Excellent compression strength;
Resistance to acid and alkali;
Excellent heat stability.
Application:
The high alumina bricks are widely applied to industrial furnace, glass furnace, chemical industrial furnace, utility industry furnace lining, smelting furnace, and heat insulation ventilation wall.
Properties of High Alumina Brick:

Al2O3 (%)≥60≥70≥7578-80
SIO2 (%)322220≥18
Fe2O3 (%)≤1.7≤2.0≤1.8≤1.8
Na2O+K2O(%)<2.3<2.0<1.2
Refractoriness1790>1770>1790≥1790
refractoriness under load 0.2mpa(°C)1450>1510>1520≥1520
Porosity (%)22<22<2120
Bulk density(g/cm3)2.332.43-2.482.45-2.552.55
Cold Cushing strength (Mpa)≥45≥50≥54≥60
Thermal expansion at 1000°C (%)≤0.3≤0.3≤0.3≤0.3
Reheating shrinking change(%) 1500°CX24h-0.3-0.3-0.3-0.3































Product Tags:

high alumina brick

      

high temperature refractory bricks

      
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Al2O3 55% - 85% High Alumina Refractory Brick High Alumina Lining Fire Brick Images

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