Alumina is hollow ball brick is a kind of high temperature fireproof material, by alumina normally powder of hollow ball, alumina and other additive are made. This kind of material is had really good high temperature resistant function, but whether to suit to be used at be able to bear or endure for a long time in the choice lukewarm when 1400 degrees environment, still need to consider other factor.
The characteristic of hollow ball brick includes alumina:
High temperature stability: Alumina is material of a kind of high melting point, relatively stable property can hold below high temperature.
Corrosion resistance: Alumina has certain counteractive capacity character to the corrosive such as soda acid.
However, those who need an attention is: 1. Thermal shock stability: Hollow ball brick is rising alumina quickly drop in temperature the likelihood below spent circumstance is affected by particular thermal shock, because this needs careful consideration,heat up circular influence. 2. Mechanical intensity: Ensure hollow ball brick has alumina enough mechanical strength, the stress that with bearing environment of long-term high temperature issues.
Alumina is hollow ball goods is the new-style and adiabatic fireproof material that by alumina hollow ball makes. This product can be used for long below in 1800 ℃ . The chemical stability with also be had better below high temperature and be able to bear or endure aggressivity. Extraordinary stability is used below hydric atmosphere. Its high strenth and stable and stomatic structure make material can be used below high temperature, suit to use as very much material of lining of high temperature furnace.
When choosing fireproof material, change of the applied environment that suggests the consideration is specific, temperature and craft ask. In addition, the proposal seeks advice from the opinion of professional engineer or material expert, in order to ensure makings of place select material accords with the requirement of specific application.
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