Kev ua tau zoo thiab kev kho mob zoo ntawm cov ntaub ntawv kho hniav feem ntau yog nyob ntawm qhov kev tshawb fawb nruj thiab tsim nyog ntawm lawv cov kev npaj thiab kev siv. Los ntawm cov khoom siv raw mus rau cov khoom tiav tiav, thiab tom qab ntawd mus rau kev ua haujlwm thiab kev sib koom ua ke hauv kev siv tshuaj kho mob, cov txheej txheem ntawm txhua theem tau ua haujlwm tsis tu ncua kom ntseeg tau tias cov khoom siv kho tshuab thiab zoo nkauj ntawm cov ntaub ntawv thiab ua kom tau raws li qhov xav tau nruj ntawm qhov ncauj ib puag ncig rau biocompatibility thiab durability.
Hauv theem npaj, ntau hom khoom ua raws li lawv cov txheej txheem txheej txheem. Cov ntaub ntawv hlau feem ntau siv cov txheej txheem melting thiab precision casting, tswj cov alloy muaj pes tsawg leeg piv thiab melting kub kom tau ib tug uniform microstructure thiab xav tau lub zog. Nyob rau hauv xyoo tas los no, additive manufacturing txoj kev xws li hmoov metallurgy thiab xaiv laser melting tau ua rau integrally pwm complex structural Cheebtsam, txo shrinkage defects inherent nyob rau hauv tsoos casting. Cov ntaub ntawv ceramic feem ntau yog ua los ntawm cov hmoov, ua tiav los ntawm kev nias qhuav, txias isostatic nias, lossis txhaj tshuaj molding ua raws li siab - kub sintering. Lub zog thiab translucency yog txhim kho los ntawm cov nplej refinement thiab theem muaj pes tsawg leeg tswj. Qee cov iav ceramics kuj suav nrog cov txheej txheem staining los simulate cov xim hloov ntawm cov hniav ntuj. Resin-raws li cov ntaub ntawv sib xyaw yog npaj los ntawm kev muab tub lim dispersion thiab cov tshuaj tiv thaiv polymerization. Lub ntsiab lus yog nyob rau hauv kev tswj cov monomer purity thiab optimizing curing kinetics kom ntseeg tau tias cov ntsiab lus tsis tshua muaj monomer thiab ruaj khov khoom.
Kev siv cov txheej txheem npog machining, shaping, thiab bonding. Txij li thaum lub dav siv digital machining, milling, tig, thiab 3D luam ntawv tau dhau los ua txoj hauv kev tseem ceeb. Kev txiav qhuav lossis ntub dej yuav tsum raug xaiv raws li cov khoom siv hardness thiab thermal rhiab heev, nrog rau cov cuab yeej txiav tsim nyog thiab cov tswv yim txias. Cov txheej txheem shaping qhia txog cov hauv paus ntsiab lus tsis tshua muaj kev cuam tshuam, khaws cia ntau cov hniav zoo nkauj lossis cov qauv uas nyob ib sab li ua tau thaum ua kom muaj kev sib haum xeeb ntawm kev kho dua tshiab thiab tawm tsam thiab cov hniav nyob ib sab. Kev sib khi txoj kev sib txawv nyob ntawm cov khoom siv: cov hlau yuav tsum tau sandblasting lossis acid etching ua ke nrog cov nplaum tshwj xeeb los txhim kho kev sib tshuam; ceramics tuaj yeem etched nrog hydrofluoric acid los yog sandblasted los tsim micropores, tom qab ntawd ua ke nrog silane coupling agents los txhim kho cov tshuaj sib txuas; resin cov ntaub ntawv cia siab rau qhov ua kom nto thiab photocuring los yog dual -kho resin cements kom ua tiav kev tuav pov hwm.
Cov kev tswj xyuas zoo thiab kev soj ntsuam yog ua haujlwm thoob plaws hauv tag nrho cov txheej txheem, suav nrog kev tshuaj xyuas microstructural, kuaj cov cuab yeej siv tshuab, kuaj kev laus thiab kev qaug zog, thiab kev soj ntsuam ua raws- nce kev ntsuas, txhawm rau txheeb xyuas qhov ruaj khov ntawm cov khoom nyob rau hauv qhov sib txawv load, av noo, thiab kub variations.
Zuag qhia tag nrho, kev npaj thiab siv cov txheej txheem ntawm cov ntaub ntawv kho hniav sawv cev rau kev sib sib zog nqus ntawm cov ntaub ntawv tshawb fawb, txheej txheem engineering, thiab cov tshuaj kho mob, thiab lawv cov kev tsim kho tshiab txuas ntxiv muab kev nyab xeeb dua, meej dua, thiab ntau hom kev daws teeb meem rau qhov ncauj kho.
