Light qualitative tall aluminous brick and the distinction that weigh qualitative tall aluminous brick

Light qualitative tall aluminous brick and heavy qualitative tall aluminous brick are the firebrick product with extremely high content of two kinds of alumina. We undertake classified according to their use way, property decides function, also made clear to want to have difference like that between them at the same time. We let simple understand light qualitative tall aluminous brick and brick of heavy qualitative tall aluminium below these two kinds of products, and the distinction between them.


1, light qualitative tall aluminous brick calls tall aluminium adiabatic brick again. Alumina content is in 48% above, main the light qualitative fireproof material that constitutes jointly by Molaishi and vitreous photograph or corundum. The bulk density of light qualitative tall aluminous brick 0.4 ～ 1.35g/cm3. Porosity 66% ～ 73% , compression intensity 1 ～ 8MPa. Heatproof shake performance is better. The dimension of GB brick is 230*114*65mm.
Light qualitative tall aluminous brick uses tall aluminous aluminous grog to add a few clay normally, law or bubble law produce with gas after classics mill with slop form pouring, figuration, via 1300 ～ 1500 ℃ are firing. Also can replace partial alumina grog with industrial alumina sometimes. With the liner that builds kiln furnace at build by laying bricks or stones and thermal insulation, and erode without stock of melt of intense high temperature reach erode the place of action. When be being contacted with blaze directly, temperature of watch surface contact does not get prep above 1350 ℃ .
2, heavy qualitative tall aluminous brick, also make tall aluminous brick. Just as its name implies, its weight is a lot of times heavier than light qualitative tall aluminous brick, not be for adiabatic heat preservation in the process that using, however for fireproof temperature, in using a process normally as direct as the blaze inside kiln furnace contact, so heavy qualitative tall aluminous brick has high temperature resistant effect normally.


Heavy qualitative tall aluminous brick chooses tall aluminous aluminous grog to combine saggar, press multistage burden, shape via machine pressing, high temperature is firing. Tall aluminous brick is 4 brands by alumina content cent, the alumina content that will assure tall aluminous brick through adjusting tall aluminous alumina and the proportion that link clay and high temperature resistant function, satisfy different use condition and requirement thereby.
Light qualitative tall aluminous brick and the distinction that weigh qualitative tall aluminous brick:
The effect with light qualitative tall aluminous main brick is to use heat preservation, reduce caloric prediction of a person's luck in a given year; And heavy qualitative tall aluminous brick basically is to use the broil that experiences flare-up to bake. Convention pledges tall aluminous brick won't contact blaze to use directly commonly gently, and heavy qualitative tall aluminous brick contacts blaze directly commonly.


Main distinction has the following at 3 o'clock:
1, heat preservation function. The coefficient of thermal conductivity of light qualitative tall aluminous brick is in commonly 0.2-0.4 (average temperature 25 ℃ of 350 ± ) W/m.k, and the coefficient of thermal conductivity of heavy qualitative tall aluminous brick is in 1 (average temperature 25 ℃ of 350 ± ) W/m.k above, can reach the heat preservation function of light qualitative tall aluminous brick wants specific gravity from this many the heat preservation performance of qualitative tall aluminous brick is good.
2, fireproof degree. Of light qualitative tall aluminous brick fireproof degree be in 1400 degrees commonly the following, and those who weigh qualitative tall aluminous brick is fireproof degree in 1400 degrees of above.
3, density. Light qualitative tall aluminous brick is light qualitative insulation material commonly, density is in commonly 0.8-1.0g/cm3, and the density of heavy qualitative tall aluminous brick is in basically 2.0g/cm3 above.
Because the distinction of light qualitative tall aluminous brick and brick of heavy qualitative tall aluminium is so clear, so we should use these two kinds of fireproof products correctly in construction, avoid to use undeserved the loss that cause.