ハイアルミナ耐火れんがの鉱物組成と特徴は何ですか?

ハイアルミナ耐火レンガは優れた性能を持った耐火物です. 高い耐火性を持っています, 良好な耐摩耗性, 化学的安定性. It is suitable for the construction and repair of various high-temperature industrial furnaces.

Mineral composition of high alumina fire brick

High-alumina fire brick is mainly composed of high-alumina bauxite containing hydrous alumina minerals (monophane, gibbsite, 等): sillimanite group minerals (including kyanite, アンダルサイ​​ト, シリマナイト, 等); Artificial synthetic raw materials, such as industrial alumina, 合成ムライト, fused corundum, 等.

Characteristics of high alumina refractory bricks

1. 耐火性
   The refractory resistance of 高アルミナレンガ is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790℃, a high-grade refractory material.

2. 柔らかい温度を積み込みます
   Because high-aluminum products have high AI203, low impurities, そして、融合性の低いガラス, the load-softening temperature is higher than that of clay bricks. しかし, because the mullite crystals do not form a network structure, 負荷溶解温度は、シリカレンガの温度ほど高くありません.
3. 耐スラグ性
   High alumina bricks contain more AI203, which is close to neutral refractory materials and can resist acidic and alkaline slag erosion. Because it contains Si02, its ability to resist alkaline slag is weaker than that of acidic slag.