- Time:Apr 24, 2023
refractory brick is a special refractory material, which is widely used in various high-temperature industrial equipment and kilns due to its excellent high-temperature resistance. Different types of refractory bricks have different operating temperature ranges. The following will introduce the operating temperature range of refractory bricks.
1. Aluminosilicate brick
Aluminosilicate bricks are mainly based on aluminum silicate and mixed with a certain proportion of other additives. Its maximum use temperature is usually around 1350°C.
2. High alumina brick
High alumina bricks have high compressive strength and excellent fire resistance, and are suitable for lining various high-temperature furnaces, electrolytic cells and other equipment. Among them, the alumina content of the first-grade high-alumina bricks is greater than 75%, which can withstand high temperatures up to 1790°C.
3. Expanded mullite brick
Expanded mullite bricks can be used in the range of 1000℃-1200℃, and its advantages are light weight, low thermal conductivity and good thermal shock performance.
4. Silicon carbide brick
Silicon carbide bricks can be used in the range of 1300℃-1500℃, and its advantages are high temperature resistance, wear resistance and corrosion resistance.
5. Zirconia brick
Zirconia bricks can be used in extremely high temperature environments above 2000°C, and have good insulation and wear resistance.
It should be noted that the service temperature of the above-mentioned refractory bricks is only an approximate range. In fact, the service life of these refractory materials is also related to many other factors, such as heating speed, heat preservation conditions, etc. Therefore, when selecting and using refractory bricks, it is necessary to comprehensively consider the specific situation and follow the relevant use and maintenance specifications.
