Carbon bricks are made from coke, anthracite or graphite and tar. A carbonaceous refractory prepared by mixing, forming, and burning in a reducing flame to 1450℃. Carbon brick sales to withstand the erosion of molten metal and various slag, used for lining the bottom and belly of blast furnace.
Carbon brick is a high temperature resistant and neutral refractory product made of carbonaceous material with appropriate binder. Carbon brick sales materials include anthracite, coke and graphite, as well as asphalt, tar and anthracene oil binders. Anthracite has less volatilization and compact structure. When producing carbon brick, it is used as aggregate, metallurgical coke is added, and asphalt is used as binder.
This series of refractory brick has high fire resistance, great compressive strength, superior slag resistance and high wear resistance. Carbon brick also has a small coefficient of expansion, so the furnace floor bricklaying brick to use carbon bricks.
The carbon brick manufacture is generally made by grinding into small particle size coke containing less ash, adding coal tar to stir and mix evenly, and then crushing, and then pressure molding. At the same time, the porosity was also reduced. Finally, it was roasted in a sealed furnace for several days and nights at a temperature of 1000℃. There should be no air gap in this furnace. When roasting, sand should be used to cover the brick, so that the brick is completely isolated from the air and heated by conduction. High fuel consumption and low yield are the reasons why carbon bricks are more expensive than other refractory bricks.
The quality of carbon brick sales is stable and reliable, and the price is reasonable. We are a professional refractory manufacturer, committed to the production of a variety of high quality refractory products, you are welcome to come to consult and purchase.
