Magnesia-chrome refractory brick is a high-performance material widely used in various industries for its excellent thermal shock resistance, corrosion resistance, and high-temperature stability. This type of refractory brick is made from magnesia and chrome, which are mixed in a specific proportion and then fired at high temperatures.
There are different classifications of magnesia-chrome refractory brick based on their composition and properties. The three main types are direct-bonded, fused-cast, and chemically bonded. Direct-bonded magnesia-chrome refractory brick is made by mixing magnesia and chrome in a specific ratio, molding the mixture, and firing it at high temperatures. Fused-cast magnesia-chrome refractory brick is made by melting magnesia and chrome and then casting it into molds. Chemically bonded magnesia-chrome refractory brick is made by bonding magnesia and chrome with a binder.
The technical parameters of magnesia-chrome refractory brick vary based on the type of brick. The density ranges from 3.0-3.7 g/cm³, the compressive strength ranges from 40-150 MPa, and the thermal conductivity ranges from 1.2-3.5 W/m•K. In addition, the refractoriness can reach up to 1800℃, making it suitable for use in high-temperature applications.
The production process of magnesia-chrome refractory brick involves several steps. First, the raw materials are crushed and screened to a specific size. Then, the mixture is formed into a brick shape, dried, and fired at a high temperature. The final product is inspected for quality before being shipped to customers.
In conclusion, magnesia-chrome refractory brick is a crucial material for various industries due to its unique properties and performance. Its classification, technical parameters, and production process all contribute to the quality of the final product. It is a reliable and durable material that helps ensure the safety and efficiency of high-temperature industrial processes.
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