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Low creep fire clay bricks are a kind of high alumina refractory bricks, low creep fireclay brick is made of high quality raw bauxite material with fewer impurities, compact structure, and high purity. It is added with new refractory raw materials, additives, and binders, fireclay brick is formulated by high-temperature sintering after compounding, mixing, and high-pressure molding.
Low creep fire clay bricks are a kind of high alumina refractory bricks, low creep fireclay brick is made of high quality raw bauxite material with fewer impurities, compact structure, and high purity. It is added with new refractory raw materials, additives, and binders, fireclay brick is formulated by high-temperature sintering after compounding, mixing, and high-pressure molding. It has the advantages of a small creep rate and strong heat storage capacity.
Therefore, the raw materials for producing low-creep clay bricks must be dense in structure, high in purity, and low in impurities, so as to avoid excessive liquid phase in the product during firing to reduce creep resistance and increase the heat resistance of low-creep clay bricks. Shock and erosion resistance.
The development of high thermal shock and low creep fireclay bricks is based on the synthesis of M45 mullite fire brick as the main raw refractory material, and the matrix is added with M75 mullite fine powder. Reasonable selection of three stone raw refractory materials (kyanite, andalusite, and sillimanite), refractory soil as the binder, scientific design components, research and development Under 1100℃ water-cooling conditions, the thermal shock stability is greater than 55 times (only fine mesh patterns appear), 1350℃*0.2MPa, 20~ 50h creep rare <0.2% about high thermal shock low creep high chrome brick.
1. Good thermal shock resistance.
2. Good abrasion resistance.
3. Good corrosion resistance.
4. Good high-temperature mechanical strength.
5. Good volume stability, and low creep rate.
With the development of modern smelting technology, hot blast stoves generally adopt high air temperature technology, and the service life of hot blast stoves is required to be longer: therefore, higher requirements are put forward for the comprehensive performance of refractory materials for hot blast stoves.
Damage to refractory materials used in hot blast stoves is usually caused by thermal stress, chemical attack, and mechanical loading. It is generally believed that an important reason for the damage of the hot blast stove is that the high-temperature creep resistance of the refractory material is poor, resulting in collapse, deformation, and cracking of the lining refractory material, thus causing widespread concern for low creep bricks for hot blast stoves.
Item / Types
High Alumina Brick
Bulk Density g/cm3
Cold Crushing Strength
Under Load 0.2MPa (℃)
High-temperature flexural strength
Thermal expansion rate (20℃-100℃) <
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