site logo

Högt aluminiumbrickor för hetspis

Högt aluminiumbrickor för hetspis

Product advantages: good volume stability, excellent high temperature load creep performance, high density and low porosity.

produktbeskrivning

High-aluminum checker bricks for hot blast stoves are currently widely recognized and accepted by the world’s ironmaking industry as a heat-carrying heat storage body with many superior thermal characteristics, such as strong heat exchange capacity, large heat storage area, smooth ventilation, and low resistance. The high-aluminum checker brick for hot blast stove is a kind of heat transfer medium, which is mainly used in the middle and upper part of the regenerator of hot blast stove to store heat. In the process of heating cold air into hot air, it plays an extremely important role.

Fysiska och kemiska indikatorer

Rang/index Hög aluminiumoxidsten Sekundär tegel av hög aluminiumoxid Tre-nivå hög aluminiumoxid tegel Superhög aluminiumoxidsten
LZ-75 LZ-65 LZ-55 LZ-80
AL203 ≧ 75 65 55 80
Fe203% 2.5 2.5 2.6 2.0
Bulk densitet g / cm2 2.5 2.4 2.2 2.7
Tryckhållfasthet vid rumstemperatur MPa> 70 60 50 80
Lastmjukningstemperatur ° C 1520 1480 1420 1530
Eldfasthet ° C> 1790 1770 1770 1790
Tydlig porositet% 24 24 26 22
Värme permanent linjebyte% -0.3 -0.4 -0.4 -0.2