Mullite insulation brick has good thermal insulation effects.
Quality Production of Mullite Insulation Bricks
Selected Raw Materials
Mullite bricks are insulating bricks made primarily from quality mullite. Mullite is a mineral compound composed mainly of aluminum oxide and silicon dioxide. Small amounts of glass phase, cristobalite, and corundum are also part of its composition. This brick has a unique crystal structure, with aluminum oxide content ranging between 70-78%. It has low impurity content. So, it is a popular choice for raw materials in high-temperature industries.
Quality Production
After firing, the aluminum oxide content in mullite insulation bricks ranges from 42-72%. Its main components include mullite, additives, and others. Mullite insulation bricks exhibit excellent properties such as resistance to acid and alkali erosion, low thermal conductivity, uniform expansion, and so on. Additionally, these insulation bricks have good workability and plasticity. These features enhance convenience in transportation and construction processes.
Properties of Mullite Insulating Bricks
The mullite insulating brick has a high refractoriness, reaching up to 1600 degrees Celsius. The load softening temperature is approximately 1230-1600 degrees Celsius. It is suitable for use in high-temperature environments and has a long service life.
Insulation brick features low thermal fusion, low thermal conductivity, and light weight. These features provide effective thermal insulation to help maintain furnace temperatures and significantly reduce the structural load of the kiln.
Mullite insulating bricks have high strength, low creep at high temperatures, and good thermal shock stability. They exhibit strong volume stability at high temperatures. And they can maintain a stable structure during rapid temperature changes.
This type of brick has extremely strong resistance to acid and alkali erosion. It will not corrode or damage when used in acidic or alkaline working environments. This helps reduce slag formation at high temperatures.
The mullite is a tasteless, non-toxic, eco-friendly material composed of natural ingredients without harmful substances. It does not emit harmful gases at high temperatures during use, helping to reduce pollution and waste.
Mullite insulating bricks have high purity and low impurity content. This factor results in stable performance and durability. This brick reduce low melting point impurities to improve refractoriness.