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Magnesia carbon brick for furnace wall hot spot area of steelmaking electric-arc furnace
A magnesia carbon brick for a furnace wall hot spot area of a steelmaking electric-arc furnace is mainly prepared from 4% of SiO2, 0.28% of Fe2O3, 0.3% of Al2O3, 1.68% of CaO, 81.34-82.34% of MgO and 11.4-16.4% of C through pressing by a mould. The magnesia carbon brick is 3.0-3.5% in surface porosity, 3.0-3.03 g/cm<3> in volume tightness, 38.0-42.0 Mpa in compressive strength, larger than 1700 DEG C in refractoriness under load, larger than 1800 DEG C in refractory temperature, good in slag resistance, and high in heat stability and can meet growing needs of power levels of the electric-arc furnace. The magnesia carbon brick is good in high temperature resistance and high pressure resistance, low in surface porosity and good in slag resistance and heat stability.
Magnesia carbon brick for furnace wall hot spot area of steelmaking electric-arc furnace
A magnesia carbon brick for a furnace wall hot spot area of a steelmaking electric-arc furnace is mainly prepared from 4% of SiO2, 0.28% of Fe2O3, 0.3% of Al2O3, 1.68% of CaO, 81.34-82.34% of MgO and 11.4-16.4% of C through pressing by a mould. The magnesia carbon brick is 3.0-3.5% in surface porosity, 3.0-3.03 g/cm<3> in volume tightness, 38.0-42.0 Mpa in compressive strength, larger than 1700 DEG C in refractoriness under load, larger than 1800 DEG C in refractory temperature, good in slag resistance, and high in heat stability and can meet growing needs of power levels of the electric-arc furnace. The magnesia carbon brick is good in high temperature resistance and high pressure resistance, low in surface porosity and good in slag resistance and heat stability.
Magnesia carbon brick for furnace wall hot spot area of steelmaking electric-arc furnace
ZHANG YUFU (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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