Low creep high alumina brick for hot blast stove

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

Kenmerke

1. Refractoriness

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. Load softening temperature

Omdat produkte met hoë aluminiumoxide hoë Al2O3, minder onsuiwerhede en minder smeltbare glasliggame het, is die temperatuur sagter as die kleistene. Omdat mullietkristalle egter nie ‘n netwerkstruktuur vorm nie, is die lasversagtingstemperatuur steeds nie so hoog soos die van silika -stene nie.

3. Slakweerstand

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.

gebruik

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