Product introduction:

High alumina brick is a kind of refractory material, and the main component of this refractory brick is Al₂ O.

If the content of Al₂ O is higher than 90%, it is called corundum brick. According to the content of Altoo in high alumina bricks, it is usually divided into three categories: I-Al2O3 content> 75%; Class II-Altoo content is 60 ~ 75%; Class III-Altoo content is 48 ~ 60%.

Product features:

1. Refractoriness

The fire resistance of high alumina brick is higher than that of clay brick and semi silica brick, reaching 1750~1790 ℃, which belongs to refractory material.

2. Load softening temperature

Because of the high aluminum products in the Al-O-high, less impurities, the formation of fusible glass body less, so the load softening temperature is higher than the clay brick, but because the mullite crystallization does not form a mesh organization, so the load softening temperature is still not high silicon brick.

3. Slag resistance

High alumina bricks in the Al2O, close to the neutral refractory material, can resist the erosion of acidic slag and alkaline slag, because it contains SiO, so the ability to resist alkaline slag is weaker than the ability to resist acidic slag.,

Product Application:

High alumina brick is mainly used for masonry blast furnace, hot blast stove, electric furnace top, blast furnace, reverberatory furnace, rotary kiln lining. In addition, high alumina bricks are also widely used as open-hearth regenerative lattice bricks, plug heads for gating systems, and water mouth bricks. However, the price of high alumina bricks is higher than that of clay bricks, so it is not necessary to use high alumina bricks where clay bricks can meet the requirements.