The strength of magnesium carbon refractory castable decreases as increasing of heating temperature.
Becasue at the test temperature Graphite suppression material also hindered the ceramic material combined.
Meanwhile, the linear expansion coefficient of magnesium and graphite vary widely, thermal stress is also large,
so that the two are separated, loose organizational structure, so the high temperature burning intensity decreased greatly.
To be noted that magnesium carbon refractory castable in long-term use at high temperatures,
the ceramic will be in conjunction with carbon, which can greatly improve the strength and slag resistance,
Application in the ladle slag lines and other thermal devices will be able to obtain satisfactory effect.

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