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Magnesia carbon brick
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Magnesia carbon brick refers to a refractory product used in electric furnaces made of magnesia sand and graphite. This brick has high fire resistance, high corrosion resistance, excellent heat spalling resistance high-temperature volume stability, high thermal shock resistance, and other characteristics, and its service life can reach more than 300 times. It is used as lining bricks for electric furnace walls and bottom bricks for electric furnaces. Especially for high-power and ultra-high-power water-cooled electric furnace walls, hot spots and slag lines, and other parts of the electric furnace walls that are severely corroded.
Features:
Ø Good resistance to high temperatures
Ø Good resistance to slag erosion
Ø High-density product
Ø Good resistance to thermal shock and electrical conductivity
Ø Low creep at high temperatures
Ø Good thermal stability.
Ø The environmentally friendly resin used throughout the process
According to the different parts of the converter, the selection of magnesia carbon bricks with corresponding performance is an effective way to improve the technical and economic indicators of the converter.
The temperature of the furnace mouth and furnace cap changes dramatically, and the slag corrosion is more serious. Magnesium carbon bricks with good thermal shock resistance and strong slag resistance should be selected. In addition to the damage caused by blowing, there is no protective slag layer cover on both sides of the ear shaft, which is not easy to repair and the carbon in the brick is easily oxidized. High-quality magnesia carbon bricks with excellent slag resistance and good oxidation resistance should be built. The slag line is in contact with the slag for a long time and is seriously corroded by slag. Magnesium carbon bricks with excellent slag resistance need to be built. When oxygen is blown on the charging side, the splashing of slag and molten steel can easily cause chemical erosion, wear, scouring, direct impact, and erosion of scrap steel and molten iron on the charging side. Magnesium carbon bricks with strong slag resistance, high-temperature strength, and good thermal shock resistance should be selected. Compared with other parts, the furnace hearth and furnace bottom are less corroded, so ordinary magnesia carbon bricks can be used. When the top and bottom composite blowing technology is adopted, especially when CO2, O2, and other gases are blown at the bottom, the damage is more serious. High-grade magnesia carbon bricks with good oxidation resistance, good thermal shock resistance, high-temperature strength, and strong slag resistance should be selected.
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