The use of magnesia carbon brick on the lining of converter

Because the use conditions of each part of the working lining of the converter are different, the use effect of magnesia carbon brick is also different.

The lining part of the furnace is constantly affected by cold and hot liquid steel, so the refractory material used for the furnace must be resistant to the erosion of high temperature slag and high temperature exhaust gas, and it is not easy to hang steel and easy to clean in time. The part of the furnace cap is not only subjected to serious slag corrosion, but also to rapid cooling and rapid heating temperature changes, as well as the combined effect of the high temperature air flow of carbon oxidation and the erosion of dust and high temperature waste gas, so the use of slag erosion resistance and resistance to spalling strong magnesia carbon brick.

The loading side requires MG-carbon brick to have not only high slag erosion resistance, but also high high temperature strength and quite good peeling resistance. Therefore, high-strength MG-carbon brick with metal anti-oxidant added is usually used. Studies have shown that the high temperature strength of MG-carbon brick with metal aluminum added is lower than that of composite aluminum and silicon metal added samples at lower temperatures. Its high temperature strength increases instead.

Slag line is the junction of furnace lining refractory material, high-temperature slag and furnace gas, which is the most serious part of slag corrosion, so it is necessary to lay magnesia-carbon bricks with excellent slag corrosion resistance, and magnesia-carbon bricks with high carbon content are needed in the slag line以上翻译结果来自有道神经网络翻译（YNMT）· 通用场景