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Application of high alumina brick: resistance of high alumina brick

In fact, high alumina brick is a kind of aluminum carbon refractory material, and the raw material of aluminum carbon refractory material is some combination of aluminum material and carbon material, sometimes also will add some silicon carbide and silicon metal and other raw materials, there is a turpentine as raw materials. Species of high alumina brick many for example: high alumina brick, blast furnace casting nozzle brick and so on, its main advantage is that the intensity is very high. The thermal shock stability of the ability to resist the corrosion is very strong, very high rate, good warm. With the development of science and technology and raw material replacement, now the preferred material of high alumina liner is blast furnace high alumina bricks, mainly because it is more suitable than the traditional refractory brick, but also can reduce the cost of 1/3. So since the high alumina bricks, is widely used in the blast furnace, and obtained the very good use, play its effectiveness. By using different raw materials can produce different varieties of high alumina brick for blast furnace.

high alumina refractory brick refractory degree and can reach the melting point is not the same, in fact, the melting point is a crystalline solid liquid will reach the critical point of temperature. The majority of refractory brick is composed of a lot of material, and its melting point is not certain, the beginning process appears to melt completely liquid needs a gradual, in high temperature environment in a wide range, solid-liquid exist together, so it could be that some of the characteristics of refractory bricks under high temperature softening and melting, so we use the refractoriness to measure. And refractoriness is it reaches a certain temperature for a specific softening degree.

Pub Time : 2014-12-24 09:30:17 >> News list
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