Converter magnesia carbon brick

Changxing Refractory magnesia carbon brick factory is located in the magnesium capital of China, and products with high bulk density and low porosity.

Magnesia carbon brick for converter
Magnesite and graphite as the main refractory raw material for the converter lining made of magnesium carbon refractory material products.
Performance converter magnesia carbon brick with high temperature, slag resistance, good thermal shock resistance, high temperature strength and so on. But its disadvantage is easy to oxidize in use, can be improved by adding antioxidants. Its physical and chemical properties see table.
The main raw material for the production process is fused magnesia or high purity sintered magnesite and high purity graphite. Generally, MgO is larger than or equal to 95%, and the c content in graphite is more than or equal to 94%. With phenolic resin or asphalt as a binder, according to the use of conditions to select the appropriate additives, by ingredients, kneading, molding, heat treatment made after the finished product. (See magnesia carbon brick) used in the smelting process, due to the use of various parts of the converter conditions and damage are different. In order to achieve a balanced corrosion, for different conditions of use of the converter parts, the choice of MgO-C bricks grades and quality are also different.
Furnace mouth, furnace cap parts of the temperature changes drastically, by the slag corrosion is more serious, should use good thermal shock resistance, slag resistance of magnesia carbon brick. Trunnions on both sides in addition to the role of damage when blowing, the surface without covered with slag layer, easy to repair, easy to oxidize the brick. Should be masonry good slag resistance, good oxidation resistance of high quality magnesia carbon refractory brick. Slag line parts and slag long-term contact, by slag corrosion serious, to be masonry and into the direct impact of scrap and molten iron and erosion. Should be used with a strong anti-slag, high temperature strength, good thermal shock resistance of magnesia carbon brick. Hearth, the bottom of the furnace compared with other parts of the erosion of light, the choice of ordinary magnesia carbon brick, when the top and bottom composite blowing technology, especially at the end of CO2, O2 and other gases, the damage is more serious. Should use good oxidation resistance, good thermal shock resistance, high temperature strength, high slag resistance of high-grade magnesia carbon brick. According to the different parts of the converter, the corresponding performance of magnesia carbon brick is to improve the technical indicators of the converter and effective method.

Magnesium Carbon Brick Product Consumption Knowledge

Changxing Refractory magnesia carbon brick factory is located in the magnesium capital of China, and products with high bulk density and low porosity.

Magnesia carbon brick is a kind of important refractory used in steelmaking converter, steel making electric furnace, steel refining furnace and its ladle as lining (lining). As the erosion resistance, not easy to slag, so the use of magnesia brick can significantly improve the life of steel-making furnace (bag).
MgO-C bricks is the use of high-quality fused magnesia, high purity flake graphite, metal additives and other raw materials, phenolic resin as a binder by high-pressure molding, about 200 ℃ heat treatment made of a refractory products. High quality magnesium carbon brick to ensure the service life and safety, the use of poor quality magnesium carbon brick masonry furnace easy to burn, the occurrence of running steel, leakage of steel, casualties and other vicious accidents, so the procurement must be good Quality off.
The appearance of the black and white carbon brick products, the appearance of oil black shiny, cross-section neat; poor magnesia carbon brick product appearance rough white point, cross-section has a layer, resulting in particle segregation, and particles continue.
magnesite carbon bricks physical and chemical indicators with the naked eye is difficult to judge, the user can randomly send the authority to send the department for quality inspection. GB / T 22589-2008 "magnesium carbon brick" requirements of the physical and chemical indicators are as follows: MgO content, C content, significantly porosity, bulk density, room temperature compressive strength, high temperature bending strength.
Magnesium carbon brick is easy to hydrate, so the MGO brick manufacturers must be kept in the rain, moisture-proof warehouse. Packaging and transportation should also take measures to prevent rain and moisture, the product once the damp, product quality will decline, serious will lead to magnesium carbon brick products scrapped.