Alumina ceramic ndiyosavuta pazinthu zakuthupi, zokhwima muukadaulo wopanga, zotsika mtengo, zabwino kwambiri pakulimba komanso kukana kuvala. Amagwiritsidwa ntchito kwambiri pamapaipi a ceramic osagwira ntchito, mavavu osamva ngati zida zomangira, ndipo amathanso kuwotcherera ndi zipilala kapena kumamatira ku khoma lamkati la zida zolekanitsa monga mafakitale ofukula mphero, concentrator ufa ndi chimphepo, zomwe zimatha kupereka 10 nthawi kuvala kukana zida pamwamba. Pazinthu zosavala, gawo lamsika la aluminiyamu limatha kufika pafupifupi 60% ~ 70%.
Chofunikira kwambiri pazida za SiC ceramic ndikukana kutenthedwa kwamafuta. Pansi pa kutentha kwambiri, zinthuzo zimakhala ndi makina okhazikika ndipo zimatha kugwiritsidwa ntchito mokhazikika pa 1800 ℃ kwa nthawi yayitali. Khalidwe lachiwiri ndilakuti zida za silicon carbide zitha kugwiritsidwa ntchito kupanga zinthu zazikulu zokhala ndi zopindika zazing'ono. Amagwiritsidwa ntchito kwambiri popachikidwa pazitsulo za simenti, kutentha kwapamwamba kosavala kwa ceramic nozzle, chitoliro cha malasha akugwa komanso chitoliro champhamvu chamakampani opanga magetsi otentha. Mwachitsanzo, ma nozzles a zoyatsira m'mafakitale opangira magetsi amapangidwa ndi silicon carbide, ndipo zinthuzo zimakhala ndi mawonekedwe a kutentha kwambiri komanso kukana kuvala. Njira zopangira sintering za silicon carbide ceramics zimaphatikizapo reaction sintering and pressureless sintering. Mtengo wa reaction sintering ndi wochepa, zinthuzo ndizovuta kwambiri, ndipo kachulukidwe ka zinthu zopanda paketi za vacuum sintering ndizokwera kwambiri. Kuuma kwa zinthuzo ndi kofanana ndi kwa aluminiyamu, koma mtengo wake ndi wapamwamba kwambiri.
Kukana kupindika kwa zida za ceramic za zirconia ndizabwinoko kuposa zida zowonongeka. Mtengo wamsika wamakono wa zirconia ufa ndi wokwera mtengo, womwe umagwiritsidwa ntchito makamaka m'minda yapamwamba, monga zipangizo zamano, fupa lopangira, zipangizo zamankhwala, ndi zina zotero.
Nthawi yotumiza: Oct-03-2020