Kinds of Magnesia Refractory Bricks for Sale
Magnesia Refractory Bricks, is one type of basic refractory brick, the raw materials are consist of magnesite, seawater magnesia and dolomite, periclase as the main crystalline phase and contains more than 80% magnesium oxide content. Magnesia Refractory Brick is mainly used for furnace lining and kiln refractory layer for resisting high temperature, chemical erosion and the physical wear. Learn more about the RS magnesia refractory bricks for sale in the following.
Properties and uses of magnesia refractory brick
The properties of magnesia refractory bricks mainly depend on its chemical and mineral composition and microstructure, and are controlled by raw materials and production process systems and methods. RS Magnesia refractory bricks should be reasonably selected and used according to the working conditions and their properties.
Ordinary Magnesia Bricks
Generally, ordinary magnesia bricks can withstand the high-temperature heat load of molten steel, molten slag, the impact of fluid flow, and the chemical attack of molten steel and strong alkaline slag. Therefore, the linings of smelting furnaces subjected to the above effects, such as open hearth furnaces, converters, electric furnaces, mixed iron furnaces, non-ferrous metal smelting furnaces, soaking and heating furnace hearths, and cement kiln and glass kiln heat storage chambers, Such magnesia refractory bricks can be used. However, due to its poor thermal shock resistance, it should not be used in places where temperature changes rapidly. In addition, due to magnesia brick has large thermal expansion and low load softening temperature, hanging methods must be used when used in high-temperature furnace roofs.
Magnesia-calcium Brick and Magnesia-silica Brick
They can be used in the same place as ordinary magnesia brick. However, because these products have a higher softening temperature under load, and have better resistance to alkaline slag, and magnesia-silica bricks also have the ability to resist various slags, they have a wider range of applications. Such as magnesia-calcium bricks are more effective when used in areas subject to alkaline slag erosion. However, This kind of magnesia refractory brick products have poor thermal shock resistance and are prone to cracking. Magnesia-silica bricks can also be used as grid bricks with less temperature change in the upper part of the heat storage chamber of the open hearth and glass melting furnace.
Magnesia Alumina Brick can replace ordinary magnesia refractory bricks, and has good effect on the parts that suffer from the above effects. Because this kind of refractory brick have excellent thermal shock resistance and high load softening temperature, they can also be used in places subject to periodic temperature fluctuations. For example, it is used in open-hearth furnace roofs, high-temperature zones of cement kilns, and heat storage chambers of glass melting furnaces. It can also be used on the top of other high temperature kiln such as high temperature tunnel kiln.
Magnesia Chrome Brick
Magnesia Chrome Brick is suitable for service under the conditions of high temperature, slag erosion and rapid temperature changes. Used in similar working conditions to magnesia-alumina bricks, such as in the open hearth furnace, non-ferrous metal smelting furnace, high temperature zone of cement kiln and glass kiln heat storage chamber, the effect is better. However, it should not be used under conditions where the atmosphere changes frequently.
Magnesia Carbon Brick
Its slag resistance is good, it is not easy to produce structural spalling, and it has good thermal shock resistance, and it is not easy to generate thermal cracking, so magnesia carbon brick is suitable for places subject to severe erosion and rapid temperature changes. This kind of product has now become the main material of the furnace lining and electric furnace wall of the oxygen steelmaking furnace. It is also widely used in steel ladles. However, such materials should not be used directly in a strong oxidizing atmosphere.
Direct Bonded Magnesia Brick
Direct Bonded Magnesia Brick has stronger high temperature strength and excellent corrosion resistance. It is used in places subject to high temperature, heavy load and slag erosion. The use effect is generally better than the above ordinary magnesia refractory bricks.
Magnesia Refractory Bricks Manufacturer
Rongsheng is one of the magnesia refractory bricks manufacturer in China. We have more than 10 years of experience, and our refractory materials have been exported to more than 60 countries. We can not only improve by ourselves (Comprehensive technical team), but also learned from our clients. We can design refractory bricks by the actual working conditions. Welcome to contact us for the details of refractory bricks for sale. We will reply you as soon as possible.