Ipuleti lerabha elihlanganisiwe le-ZTA (Zirconia Toughened Alumina) liwumkhiqizo ohlanganisiwe omelana nokuguguleka owenzelwe ngqo izimo zokuguguleka okukhulu. Lo mkhiqizo uhlanganisa i-ZTA ceramics (ngokuvamile eyakhiwe yi-75%-80% Al₂O₃ kanye ne-20%-25% ZrO₂) nerabha yemvelo enokuqina okuphezulu kanye nepuleti elisekelayo lensimbi ngenqubo ethuthukisiwe ye-vulcanization, enamabholthi ahlanganisiwe afakwe kusengaphambili ukuze kube lula ukuwafaka. Ifilosofi yokuklama eyinhloko isebenzisa ukumelana okuphezulu kokuguguleka kwe-ceramics ukuze imelane nokuguguleka kwezinto ngenkathi ungqimba lwerabha lumunca amandla okushaya, kufezwe umphumela wokubambisana phakathi kokumelana nokuguguleka kanye nokuqina kokushaya.
Ngenxa yendlela yokuqinisa ukuguquguquka kwesigaba se-zirconia, i-ZTA ibonisa ukuqina kokuqhekeka okuphezulu kakhulu kanye nokumelana nokuguguleka kune-alumina ceramics evamile. Ucwaningo lubonisa ukuthi i-ZTA composites equkethe i-zirconia engu-20%-25% ibonisa ukusebenza okuhle kakhulu ngaphansi kwezimo ezinzima zokuguguleka. Imininingwane ejwayelekile yobuchwepheshe ifaka: ukuminyana okukhulu ≥4.1-4.3 g/cm³, ubulukhuni be-Rockwell (HRA) ≥90, ubulukhuni bokuqhekeka (KIC) ≥3.70 MPa·m1/2, kanye namandla okuguquguquka >350 MPa. Ezivivinyweni zokuguguleka okomile, izinga lokuguguleka elithile le-ZTA composites lingaba ngaphansi kuka-10⁻⁹ mm³/(N·m), elisebenza kahle kakhulu kune-single-phase alumina noma i-zirconia ceramics.
Inqubo yokukhiqiza ihilela ukulawulwa okuqondile kwe-hot vulcanization ukuqinisekisa amandla aphezulu e-bond interface ye-ceramic-raber. Ngokwezindinganiso zemboni, amandla e-shear bond phakathi kwe-ceramic ne-raber kufanele adlule ku-3.5 MPa, kanti ungqimba lwerabha ngokwalo lubonisa amandla okudonsa angu-12-15 MPa kanye nokwelulwa lapho kuphuka okungaphezu kuka-250%-400%. Isakhiwo esihlanganisiwe se-vulcanized sivimbela ngempumelelo amathayili e-ceramic ukuthi angaphumi lapho eshayisana, kuyilapho ukuguqulwa kwerabha kusabalalisa ukucindezeleka okugxilile, kuvikela ungqimba lwe-ceramic ekuqhekekeni okuqhekekayo. Ipuleti elisekela insimbi liqinisekisa ukuqina kwesakhiwo lapho lifakwa kumagobolondo emishini.
Amapuleti enjoloba e-ceramic e-ZTAAsetshenziswa kakhulu kuma-chute okudlulisa, ama-hopper, kanye nama-bin ezinhlelo zokuphatha izinto eziningi lapho kokubili ukushayisana kanye nokuhuzuka kuvame khona. Uma kuqhathaniswa nama-liners e-alumina ceramic ahlanzekile, i-ZTA inikeza impilo yesevisi ende ngokuphindwe izikhathi ezingu-2.5 ngaphansi kwezimo zokuhuzuka, kuyilapho izindleko zayo zihlala ziphansi kakhulu kune-zirconia ceramics ehlanzekile, okunikeza ukusebenza kahle kwezindleko okumangalisayo. Ngezinhlelo zokusebenza ezisingatha izinto ezinkulu, ukuphakama okuphezulu, noma ijubane lokugeleza okuphezulu, amapuleti e-ZTA ngerabha avulcanized amelela enye yezixazululo zokuvikela ukuguguleka ezithembekile kakhulu ezitholakalayo.
Isikhathi sokuthunyelwe: Feb-24-2026