High-alumina lung seng ni gaw madung hku nna aluminum oxide (Al2O3) hte hpawng de da ai n-gun n rawng ai arung arai langai mi re.
Bricks with an Al₂O₃ content exceeding 90% are classified as corundum bricks. Standards vary by country due to differences in available resources; for instance, European standards set the minimum Al₂O₃ content for high-alumina refractories at 42%. In China, high-alumina bricks are typically categorized into three grades based on Al₂O₃ content: Grade I (>75%), Tsang II (60-75%), Tsang III (48-60%) ni hta lawm ai ni rai ma ai.
Ndai ni gaw 48% jan aluminum oxide (Al2O3) lawm ai aluminosilicate n-gun n rawng ai arung arai ni rai nga ai.
Shanhte gaw alumina 48% jan lawm ai neutral n-gun n rawng ai arung arai amyu langai rai nna, bauxite (sh) alumina law ai kaga arung arai ni hpe hkrang shapraw nna calcining galaw ai hku nna galaw shapraw ai re. Shanhte gaw nbung n-gun grai ja ai hte 1770℃jan n-gun n-gun hpe madun dan ma ai. Slag hpe kaja ai hku ninghkap lu ai majaw, wan jak hte n-gang galaw ai wan wut ni, glass htu ai wan wut ni, cement rotary kiln ni hpe line galaw na matu lang ma ai.
Hpa majaw nga yang, n-gun n law ai, n-gun n law ai alumina lung seng [1] ni gaw, laksan-grade bauxite, fused corundum, hte fused mullite ni kaw na madung galaw ai, n-gun n rawng ai arung arai ni rai nga ai. Ndai lung seng ni gaw, n-gun n law ai-temperature creep, n-gun ja ai n-gun n-gun, thermal shock hpe grai kaja hkra hkam sharang lu ai zawn re ai akyu ni hpe jaw ya nga ai.
Kaja ai hte lapran tsang-katsi ai wan wut wan wut ni a matu htuk manu ai, shanhte gaw nye a mungdan a prat nnan-katsi ai wan wut wan wut ni a matu shawng de maigan de htaw sa wa ai {-quality, high-grade refractory materials ni hpe mungdan kata kaw galaw shapraw lu na matu awng dang ai lahkam langai hpe madi shadaw ya nga ai; ndai arung arai hpe mungdan ting na "Spark Program" hta bang da sai.