Chitoliro cha Alumina Ceramic Chosavala: Yankho Labwino Kwambiri la Chitetezo cha Kuphulika kwa Mafakitale

Mapaipi a mafakitale omwe amanyamula zinthu zokwawa—monga ufa wa malasha, phulusa la ntchentche, matope a mchere, simenti yolumikizira, ndi tinthu tating'onoting'ono ta mankhwala—amakumana ndi vuto losatha: kuwonongeka kwa makoma a mapaipi komwe kumabweretsa kulephera msanga, nthawi yopuma yosakonzedwa, komanso kukwera mtengo kwa kukonza. Mapaipi achitsulo cha kaboni wamba, ngakhale ataumitsidwa kapena kupangidwa, nthawi zambiri amakhala ndi moyo wautumiki womwe umayesedwa m'miyezi ingapo pansi pa zovuta kwambiri. Chitoliro cha alumina ceramic chosatha kusweka (chomwe chimatchedwanso chitoliro chophatikizika cha ceramic) chimathetsa vutoli kudzera mu njira yaukadaulo wazinthu: kuphatikiza kuuma kwambiri ndi kusakhazikika kwa mankhwala kwa zitoliro za alumina zokhala ndi chiyero chapamwamba ndi kulimba kwa kapangidwe ka chitoliro chakunja chachitsulo.

Zida za alumina (Al₂O₃) ndi zina mwa zida za alumina zomwe zimagwiritsidwa ntchito kwambiri poteteza kukalamba. Kuchita bwino kwawo kumachokera ku kapangidwe ka kristalo ka α-Al₂O₃ kokhala ndi ma hexagonal, komwe kumapangitsa kuti zinthuzo zikhale zolimba komanso zolimba kwambiri.

Mapaipi a ceramic osatha kuvala a Alumina, yopangidwa ndi ma liners a aluminiyamu oxide (Al₂O₃) opangidwa ndi chipolopolo chachitsulo chopangidwa ndi chitsulo, imapereka kukana kwakukulu ku kuwonongeka kwa abrasive, kukokoloka kwa nthaka, ndi dzimbiri la mankhwala. Ndi kuuma kwa Mohs kwa 9, mphamvu yopondereza yoposa 850 MPa, komanso nthawi yayitali yogwira ntchito nthawi 10 mpaka 30 kuposa mapaipi achitsulo wamba, mapaipi ophatikizika awa akhala muyezo wamakampani opangira makina operekera mpweya m'migodi, kupanga magetsi, kupanga simenti, kupanga zitsulo, ndi kukonza mankhwala.