- Time:Apr 22, 2023
refractory materials must be used in some industries. What factors should we consider when choosing refractory materials? What principles do you follow? The following is an introduction to the principles of choosing refractory materials.
1. Operating temperature and environment
When choosing a refractory material, it is necessary to consider whether it can withstand the high temperature and chemical corrosion environment required to be used, and has sufficient wear resistance and impact resistance. Large temperature fluctuations can occur in certain parts of the kiln. For example, when the furnace door is opened, cold air enters and the temperature of the furnace lining drops sharply. This requires the material to have a certain thermal stability (thermal shock resistance) to ensure normal operation.
2. Mechanical strength
Refractory materials need to have sufficient mechanical strength to ensure that they are not easily broken or damaged during use. Refractory materials are subject to certain pressure and wear during use. However, the structural strength of the material will change greatly at high temperature, so its sufficient strength at high temperature must be considered.
3. Life and maintenance cost
When choosing refractory materials, factors such as the service life of refractory materials and maintenance costs should be considered, so that suitable materials can be selected economically.
4. Security issues
When selecting refractory materials, special attention should be paid to the safety issues of refractory materials, such as fire resistance, radiation, etc., to ensure safe operation. When used as an electric furnace lining, its conductivity must also be considered, and materials that are also insulators at high temperatures must be selected as refractory materials.
According to different service conditions and requirements, appropriate refractory materials can be selected in combination with the above principles.
