Alumina birikisi a ɛkorɔn-yɛ ade bi a ɛyɛ den a wɔde aluminium oxide (Al2O3) na ɛyɛ titiriw.
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%), Adesuakuw II (60–75%), ne Adesuakuw III (48–60%).
Eyinom yɛ nneɛma a aluminosilicate ntumi nhyew a aluminium oxide (Al2O3) dodow boro 48%.
Wɔyɛ ade bi a ɛnyɛ nea ɛyɛ den a entumi nhyew a alumina dodow boro 48%, a wɔde bauxite anaa nneɛma afoforo a wɔde yɛ nneɛma foforo a alumina pii wom a wɔde yɛ no na ɛyɛ hyew. Wɔda ɔhyew a ɛtumi gyina pintinn kɛse adi na wɔda ɔhyew a ɛboro digrii 1770 adi . Esiane sɛ ɛko tia slag yiye nti, wɔde yɛ fononoo a wɔde anyinam ahoɔden yɛ dade, fononoo a wɔde ahwehwɛ a ɛyɛ hyew, ne fononoo a wɔde semɛnte di akɔneaba.
High-adesoa-softening, low-creep high-alumina birikisi [1] yɛ premium refractory nneɛma a wɔde bauxite soronko-grade, fused corundum, ne fused mullite titiriw. Saa birikisi yi de mfasoɔ te sɛ ɔhyew a ɛkɔ soro-a ɛba fam a ɛtwetwe, ɛko tia nsuo a ɛtɔ a ɛyɛ den, ne ɔhyew a ɛtumi gyina pintinn yie.
Ɛfata ma fononoo akɛseɛ ne mfimfini{0}}kɛseɛ a ɛyɛ hyew, ɛgyina hɔ ma anammɔn a ɛdi mu a ɛkɔ ɔman no mu nneɛma a ɛyɛ papa, a ɛkorɔn-ade a ɛyɛ papa a ɛtumi nhyew a wɔde ba amannɔne ma me man no mu foforɔ-awoɔ ntoatoasoɔ a ɛyɛ hyeɛ fononoo wɔde saa ade yi aka ɔman no "Spark Program" ho.