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75% High Alumina Refractory Brick For Industrial Furnace
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Brand Name:Rong Sheng
Model Number:RS808
Certification:CE,ISO,MSDS.
Price:USD 500/MT
Payment Terms:T/T, Western Union
Supply Ability:100 MT/month
Delivery Time:15 working days
Company Data
Verified Supplier
Contact Person
Pika
Business Type:
Manufacturer
Officials:
10th & 11th Floors, No.6 Building, Central China Electronic Commerce Port, Daxue Road, Erqi District, ZhengZhou City, Henan Province, China
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
75 high alumina bricks for regular refractory and special refractory for the furnace and will be used in the oven.
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 | ≥75 | 78-80 |
| SIO2 (%) | 32 | 22 | 20 | ≥18 |
| Fe2O3 (%) | ≤1.7 | ≤2.0 | ≤1.8 | ≤1.8 |
| Na2O+K2O(%) | <2.3 | <2.0 | <1.2 | |
| Refractoriness | 1790 | >1770 | >1790 | ≥1790 |
| refractoriness under load 0.2mpa(°C) | 1450 | >1510 | >1520 | ≥1520 |
| Porosity (%) | 22 | <22 | <21 | 20 |
| Bulk density(g/cm3) | 2.33 | 2.43-2.48 | 2.45-2.55 | 2.55 |
| 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 |
Company Profile
Zhengzhou Rongsheng Refractory Co., Ltd.
Our company can provide not only the domestic and foreign customers excellent quality of high-temperature thermal insulation material, but also the first-rate service including professional furnace lining design, installation supervision, engineering construction etc.
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