Carbon brick is made of coke, anthracite or graphite and tar as raw materials, after mixing, forming, in the reduction flame burning to 1450℃ and a kind of carbon refractory. The mass fraction of carbon is 88% ~ 90%, which can resist the erosion of molten metal and various slag. It is widely used for laying the bottom and belly of blast furnace.
To be specific, carbon brick is made of carbon material as raw material, adding the right amount of binder made of high temperature neutral refractory products. Carbon brick raw materials include anthracite, coke, graphite, asphalt, tar and other binder. Anthracite has few volatile components and dense structure. In the production of carbon bricks, it is often used as aggregate, metallurgical coke is added and asphalt is used as binder. If you need to buy refractory products, welcome to contact us.
Carbon brick production, the external size requirements are very strict, general products to a certain degree of mechanical processing. This series of refractory brick has high fire resistance, high compressive strength, its compressive strength can reach 250 ~ 500kg/cm2, excellent slag resistance, except the slag containing high FeO, any slag can not play the role of erosion. And carbon brick still has higher wear-resisting strength, expansion coefficient is small, thermal stability is good, bear high temperature, bear the erosion of all sorts of acid, alkali, salt and organic solvent.
Generally speaking, carbon brick is dark gray, have certain burnish, burn good carbon brick not to be stained hand, use small hammer to knock have clear sound. High refractoriness and softening temperature under load, good thermal shock resistance; It is not wetted by dissolved slag, molten iron, and almost not corroded by all acid, alkali, salt and organic drugs, good slag resistance, high temperature volume stability, high mechanical strength, good wear resistance, with good electrical and thermal conductivity.
We are professional carbon brick manufacturer, production experience, exported to more than 60 countries in the world, strong technical force, welcome to consult and purchase, we will serve you wholeheartedly.
E-mail us: Sales@rongshengrefractory.com
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