I-aluminiyam ephezulu ye-aluminiyam ekhaphukhaphu yokugquma izitena ziyimveliso ekhusela ubushushu eyenziwe nge-bauxite njengeyona nto iphambili ekrwada enomxholo we-Al2O3 ongekho ngaphantsi kwe-48%. Inkqubo yokuvelisa i-foam, kwaye inokuba yindlela yokongeza yokutshisa. I-aluminiyam ephezulu yokugquma isitena esikhaphukhaphu ingasetyenziselwa umaleko wokugquma wamatye kunye namalungu ngaphandle kokhukuliseko olunamandla kunye nokhukuliseko lwemathiriyeli enyibilikisiweyo yobushushu obuphezulu. Xa udibana ngokuthe ngqo namadangatye, ngokubanzi ubushushu bomphezulu we-aluminiyam ekhaphukhaphu yokugquma abuyi kuba ngaphezulu kwe-1350 °C.
Iimpawu ze-aluminiyam ephezulu yezitena zokugquma ukukhanya
Ineempawu zokuxhathisa ubushushu obuphezulu, amandla aphezulu, ubuninzi obuphantsi, i-porosity ephezulu, i-conductivity ephantsi ye-thermal, ukumelana nobushushu obuphezulu, kunye nokusebenza kakuhle kokufakelwa kobushushu. Inokunciphisa ubungakanani kunye nobunzima bezixhobo ezishushu, ukunciphisa ixesha lokufudumeza, ukuqinisekisa ubushushu obufanayo besithando somlilo, kunye nokunciphisa ukulahleka kobushushu. Inokonga amandla, igcine izixhobo zokwakha eziko kwaye yandise ubomi benkonzo yesithando somlilo.
Ngenxa ye-porosity ephezulu, ubuninzi obuphantsi kunye nokusebenza kakuhle kwe-thermal insulation,izitena zokugquma i-aluminiyam ephezuluzisetyenziswa ngokubanzi njengezinto zokuzalisa i-thermal insulation kwisithuba phakathi kwezitena eziphikisayo kunye nemizimba yesithando somlilo ngaphakathi kweenkuni ezahlukeneyo zoshishino ukunciphisa ukutshatyalaliswa kobushushu besithando somlilo kunye nokufumana amandla aphezulu. Indawo yokunyibilika kwe-anorthite yi-1550°C. Ineempawu zoxinzelelo oluphantsi, i-coefficient encinci yokwandisa i-thermal, i-conductivity ephantsi ye-thermal, kunye nobukho obuzinzile ekunciphiseni i-atmospheres. Inokubuyisela ngokuyinxenye udongwe, isilicon, kunye nezixhobo eziphezulu ze-aluminiyamu ezichasayo, kwaye iqonde ukonga amandla kunye nokunciphisa ukukhutshwa.
Ixesha lokuposa: Jul-03-2023
