Refractory Bricks For Lime Kilns Tunnel Kiln Brick High Chrome Refractory Brick

about us Hello, we are Henan Province Asia Refractory Co., Ltd.
We are a company with 17 years of industry experience and can provide you with one-stop solutions for high-end refractory materials. Please feel free to consult.product photo Physical and chemica projectfirst-classSecond classThird classhighestLZ-75LZ-65LZ-55LZ-85AL2O3 %≥75655585Fe203 % <2.52.52.62.0Bulk Density g/cm³2.52.42.32.6Cold Crushing Strength MPa >70605080Refractoriness Under Load ℃1510146014201550Refractory temperature ℃ >1790177017701790Apparent Porosity % <22232421Refiring linear change %-0.3-0.4-0.4-0.2

Product Description:
The high alumina brick is an alumina-silicate refractory material in which the Al2O3 content is more than 55%, and is calcined from a high-content alumina raw material such as a silicone raw material or a bauxite. High heat resistance and high temperature resistance at 1770 ° C and above. Has good slag resistance, mainly used in the masonry of steelmaking electric furnace, glass furnace, cement rotary furnace and so on.
Characteristics of high alumina bricks:
1.Refractoriness
More refractory than refractory clay bricks and semi-silica bricks, up to 1750-1790C, belonging to high-grade refractory materials.
2. Load softening temperature
Since the high aluminum has a high Al2O3 content, a low impurity content, and a low formation of the molten glass body, the fire-resistant softening temperature is higher than that of the refractory clay brick. However, since the mullite crystal has not yet formed a network structure, the load softening temperature is lower than the load softening temperature of the silica brick.
3. Slag resistance
High Al2O3 has high Al2O3 content, close to neutral refractory material, and can resist the erosion of acid slag and alkali slag. Because it contains SiO2, the resistance to alkali slag is less than acid resistance.Application:1.Iron&steel making industry:Blast furnace,hot blast furnace(stove),pellet shaft furnace,hot metal ladle,steel ladle, tundish,heating furnace,soaking pit furnace,heat treatment furnace,refining furnace,reheating furnace,metal mixter furnace,annealing furnace, cupola furnace,electric arc furnace,induction furnace,AOD furnace,VOD furnace,etc thermal technology equipment.
2.Non-ferrous metal industry:Smelting furnace,refining furnace,reverberatory furnace,converter furnace.
3.Building materials industry:Cement kiln,glass kiln,ceramic kiln,lime kilns,kiln car,tunnel kiln
4.Energy & Incineration:Coke oven,general boiler,power,generation,boiler,circulating fluidized bed boiler,electric furnace,carbon rosating furnace,waste incinerators.
5.Others:Petrochemical industry furnace.
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Our goal is to provide a strong heart for all furnaces.
Our honor Application field Refractory application field
The refractory materials are various in variety and use, and are mainly used in various fields of national economy such as steel, non-ferrous metals, glass, cement, ceramics, petrochemicals, machinery, boilers, light industry, electric power, military industry, etc., to ensure the production and operation of the above-mentioned industries. The development of essential basic materials plays an irreplaceable role in the development of high-temperature industrial production.
Production and inspe Packaging and transp export packing
The export package uses wooden fumigation trays, carton packs, and a moisture barrier film to ensure that the goods are not affected by moisture during long-haul shipping.