- Time:Apr 21, 2023
Alkaline firebricks is an important refractory material, alkaline refractory brick includes a variety of firebricks, according to their chemical composition and physical properties, can be divided into several types, the following is to introduce the types and performance of alkaline firebricks.
one, alkaline firebrick types
Alkaline firebrick is usually divided into calcium oxide alkaline firebrick and magnesium oxide alkaline firebrick two categories.
1. Magnesia alkaline firebrick
Magnesia basic firebrick is suitable for high temperature environment in reducing atmosphere and has good oxidation resistance and shock resistance. Magnesia alkaline firebrick can be divided into magnesia carbide brick, magnesia aluminum brick, magnesia chrome brick, magnesia calcium brick and other different types. Magnesia carbide brick has the highest refractory limit temperature and better shock resistance.
2, calcium oxide alkaline firebrick
Calcium oxide alkaline firebrick is suitable for high temperature oxidation atmosphere working environment, has better slag resistance and shock resistance. Calcium oxide alkaline firebrick can be divided into ordinary grade, high purity grade, super high purity grade and other different grades. According to the production process can be divided into extrusion molding, pouring molding, pressing molding, etc.
Two, alkaline firebrick performance
1. High temperature resistance
Alkaline firebrick can withstand up to 1700℃ high temperature environment, maintain structural stability and mechanical strength.
2, corrosion resistance
Alkaline firebrick can withstand alkaline compounds and some acid gas erosion, in these harsh environment long-term use will not occur corrosion, cracking or deformation phenomenon.
3, good insulation performance
Alkaline firebrick has good insulation properties and can be used for heat insulation and heat preservation.
4. Stable chemical properties
The chemical composition of alkaline firebrick is stable, not easy to react with other substances, and has good friction resistance and shock resistance.
5, easy to process
Alkaline firebrick has low thermal conductivity and large size specifications, easy to cut into a variety of required sizes and shapes, can be customized according to the actual use requirements
Generally speaking, alkaline firebrick is one of the most important high temperature refractory materials because of its high temperature resistance, corrosion resistance, good insulation, stable chemical properties and easy processing.
