- Time:Jun 21, 2023
The main function of aluminum powder in refractory materials is to enhance its fireproof performance and thermal insulation performance. Aluminum powder plays an important role in refractory materials, which can significantly improve its fireproof performance and thermal insulation performance, prolong its service life, and enhance its mechanical and overall performance. The following is a detailed introduction to the role of aluminum powder in refractory materials.
1. Fireproof performance: Aluminum powder can react with oxygen to form alumina, which releases a large amount of heat and gas, forming a layer of dense alumina film, which has a good heat insulation and fireproof effect. Adding aluminum powder to refractory materials can significantly improve its fire resistance and prolong its service life.
2. Thermal insulation performance: aluminum powder can improve the thermal conductivity of refractory materials, and improve its thermal insulation effect on high temperature. When the refractory material is calcined at high temperature, the aluminum powder will be reduced to metallic aluminum, which releases a large amount of heat, forming a layer of relatively low-temperature alumina film on the surface of the refractory material, which effectively isolates the high-temperature environment and improves the thermal insulation effect. .
3. Other functions: In addition to the above two main functions, aluminum powder can also promote the curing and hardening process of refractory materials, increase its mechanical strength and durability, and improve the overall performance of refractory materials.
