Lithaele tsa ceramic tsa alumina tse sa tsofalengke dihlahiswa tsa letsopa tse sebetsang tse entsweng ka aluminium oxide e hlwekileng haholo (Al₂O₃) ka ho tobetsa le ho tjhesa mocheso o phahameng. Dikahare tsa tsona tsa Al₂O₃ hangata ke 92%, 95%, kapa 99%, ka bongata bo tlohang ho 3.60 g/cm³ ho isa ho 3.90 g/cm³ mme metsi a monyela ka tlase ho 0.01%. Thepa e bontsha boima bo phahameng le botsitso bo botle ba dikhemikhale, e loketse maemo a indasteri a kenyeletsang tshusumetso, kgohlano e thellang, le metswedi e senyang.
Dipharamithara tse tloaelehileng tsa tshebetso: Bothata ba Mohs ba 9, Bothata ba Rockwell HRA 85-90, le ho hanyetsa ho tsofala ka makgetlo a 20-30 ho feta tshepe e tlwaelehileng ya carbon (bophahamo ba ho tsofala ha ≤0.05 cm³ ka teko ya lebili la rabara ya lehlabathe le omileng la ASTM G65). Matla a ho kokomoha a fihla ho 250-350 MPa, ho tsamaisa mocheso ho ka bang 25-30 W/(m·K), mme mocheso wa tshebetso o tloha ho -50 °C ho isa ho 1200 °C (ho itshetlehile ka sehlopha se itseng). Lintlha tsena di netefatsa ho tshepahala ha nako e telele tlasa maemo a ho tsofala ho hoholo le a mocheso o hodimo.
Sehlahisoa sena se sebelisoa haholo bakeng sa tšireletso ea ho tsofala lisebelisoa tsa bohlokoa ho pholletsa le samente, tšepe, motlakase, merafo le liindasteri tsa mashala, tse kang mahare a sehlopha, li-chute, li-pipe löb, liholiotsoana le li-linings tsa hopper. Mekhoa ea ho kenya e kenyelletsa ho kopanya resin ea epoxy, bolting, kapa ho tjheseletsa (ho sebelisoa lithaele tsa ceramic tse chekiloeng esale pele tse kopantsoeng le lipoleiti tsa rabara/tšepe). Botenya bo tloaelehileng bo tloha ho 5 mm ho isa ho 25 mm; boholo bo tloaelehileng ba lithaele bo kenyelletsa libopeho tsa 10 mm × 10 mm, 20 mm × 20 mm, le 50 mm × 50 mm lisekoere kapa tse nang le hexagonal bakeng sa ho seha le ho rala habonolo sebakeng seo.
Ho sebelisa lithaele tsa ceramic tsa alumina tse sa tsofaleng ho eketsa bophelo ba ts'ebeletso ea lisebelisoa haholo 'me ho fokotsa nako ea ho sebetsa bakeng sa tlhokomelo. Lintlha tsa tšimo li bontša hore tlas'a maemo a ts'ebetso a tšoanang, masela a ceramic a nka nako e telele ka makhetlo a 3-8 ho feta lipoleiti tsa tšepe ea manganese e phahameng kapa tse sa tsofaleng. Sehlahisoa ha se na makenete, se hanela mafome a acid/alkali (ntle le hydrofluoric acid le alkali e matla e chesang), 'me ha se silafatse thepa. Khetho e lokela ho fumana hore na Al₂O₃ ke bokae le botenya ba tile ho latela sekhutlo sa 'nete sa tšusumetso, boholo ba likaroloana le mocheso ho fihlela tekano lipakeng tsa ts'ebetso le litšenyehelo.
Nako ea poso: Mmesa-25-2026