Low creep high alumina brick for hot blast stove

Low creep and høje aluminiumoxidsten are high-grade refractory materials made of alumina, fused corundum, and fused mullite as the main raw materials.

Egenskaber

1. Ildfasthed

The refractoriness of low-creep and high-alumina bricks is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790℃, which is a high-grade refractory material.

2. Belastningsblødgøringstemperatur

Fordi produkter med højt aluminiumoxid har højt Al2O3, mindre urenheder og mindre smeltbare glaslegemer, er belastningens blødgøringstemperatur højere end lersten. Fordi mullitkrystaller ikke danner en netværksstruktur, er belastningsblødgøringstemperaturen dog stadig ikke så høj som siliciumsten.

3. Slagmodstand

Low creep and high alumina bricks contain more Al2O3, which is close to neutral refractory materials, and can resist the erosion of acidic slag and alkaline slag. Because it contains SiO2, the ability to resist alkaline slag is weaker than that of acidic slag.

brug

Mainly used for lining of blast furnaces, hot blast furnaces, electric furnace tops, blast furnaces, reverberatory furnaces, and rotary kilns.