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Tijolo xadrez de alto alumínio para fogão de explosão

Tijolo xadrez de alto alumínio para fogão de explosão

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

descrição do produto

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.

Indicadores físicos e químicos

Classificação / Índice Tijolo de alta alumina Tijolo secundário de alta alumina Tijolo de alta alumina de três níveis Tijolo superalumina
LZ-75 LZ-65 LZ-55 LZ-80
AL203 ≧ 75 65 55 80
Fe203% 2.5 2.5 2.6 2.0
Densidade aparente g / cm2 2.5 2.4 2.2 2.7
Resistência à compressão à temperatura ambiente MPa> 70 60 50 80
Temperatura de amolecimento de carga ° C 1520 1480 1420 1530
Refratariedade ° C> 1790 1770 1770 1790
Porosidade aparente% 24 24 26 22
Taxa de mudança de linha permanente de aquecimento% -0.3 -0.4 -0.4 -0.2