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Mattone a scacchiera alto in alluminio per stufa ad aria calda

Mattone a scacchiera alto in alluminio per stufa ad aria calda

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

descrizione del prodotto

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.

Indicatori fisici e chimici

Classifica/Indice Mattone ad alto contenuto di allumina Mattone secondario ad alto contenuto di allumina Mattone ad alto contenuto di allumina a tre livelli Mattone ad altissima allumina
LZ-75 LZ-65 LZ-55 LZ-80
AL203 75 65 55 80
Fe203% 2.5 2.5 2.6 2.0
Densità apparente g / cm2 2.5 2.4 2.2 2.7
Resistenza alla compressione a temperatura ambiente MPa> 70 60 50 80
Carico temperatura di rammollimento °C 1520 1480 1420 1530
Refrattarietà °C> 1790 1770 1770 1790
Porosità apparente% 24 24 26 22
Tasso di cambio linea permanente riscaldamento% -0.3% -0.4% -0.4% -0.2%