Fireclay High Alumina Perforated Refractory Brick for Steel Plant
The Description:
High aluminum brick is a kind of high aluminum material, which is suitable for thermal boilers, glass kilns, cement kilns, chemical fertilizer gas furnaces, blast furnaces, hot blast furnaces, coke furnaces, electric furnaces, casting and casting steel bricks.
High aluminum firebrick, that is, an aluminum silicate refractory with an alumina content of more than 48%. It is made of alumina or other raw materials with high alumina content by molding and calcination. High thermal stability, refractories above 1770ºC. Good slag resistance.
Technical index:
| Items |
Special andalusite brick |
| Al2O3 % ≥ |
55-60 |
| Fe2O3 % ≤ |
1.2 |
| B.D g/cm3 ≥ |
2.25 |
| Refractoriness ºC ≥ |
1790 |
| RUL ºC ≥ |
1600 |
| % P.L.C 1550ºC×2h |
-0.2 |
| Apparent porosity % ≤ |
18 |
| Creep%(0.2Mpa*50h) |
0.2 |
Product feature:
a.The refractoriness of high aluminum bricks is higher than that of clay bricks and semi-silicon bricks, up to 1750~1790 ° C, which is a high-grade refractory material.
b, the load softening temperature because high aluminum products Al2O3 high, less impurity, the formation of less fusible glass, so the load softening temperature is higher than clay bricks, but because mullite crystallization does not form a network organization, so the load softening temperature is still not high silicon bricks.
c, slag resistance high aluminum brick Al2O3 more, close to neutral refractory materials, can resist the erosion of acidic slag and alkaline slag, because it contains SiO2, so the ability of alkali slag is weaker than the ability of acid slag.
Application:
Due to the low load softening temperature of clay brick, shrinkage at high temperature, thermal conductivity is 15% to 20% smaller than silicon brick, mechanical strength is worse than silicon brick, so clay brick can only be used for secondary parts of coke oven, such as regenerator chamber wall, small flue lining brick and regenerator chamber lattice brick, furnace door lining brick, furnace top and rising pipe lining brick
Company main products and profiles:
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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