Hauv ntiaj teb kev tsim khoom lag luam, yeej ib txwm muaj qee qhov khoom tshwj xeeb uas ua rau cov engineers mob taub hau - lawv tej zaum yuav yog cov kav dej khoov hauv cov cuab yeej precision lossis cov qauv txhawb nqa nrog cov grooves nyuaj hauv cov khoom siv kub siab. Cov khoom no, hu ua "cov khoom txawv teb chaws," feem ntau nyuaj rau ua los ntawm cov khoom siv ib txwm vim lawv cov duab tshwj xeeb thiab qhov chaw ua haujlwm hnyav. Niaj hnub no, silicon carbide, ib yam khoom zoo li tsis tseem ceeb, tab tom hloov pauv txhua yam maj mam.
Qhov zoo ntawm cov khoom siv nws tus kheej
Yuav kom nkag siab tias yog vim li cassilicon carbidemuaj peev xwm kho kom haum rau cov khoom tsis sib xws, peb yuav tsum xub saib nws "kev cai lij choj". Cov khoom siv no muaj "cov noob zoo heev" uas xav tau rau kev tsim khoom lag luam: nws qhov nyuaj yog qhov thib ob tsuas yog pob zeb diamond, tab sis nws tuaj yeem tiv taus qhov kub hloov pauv loj heev zoo li hlau; Ntsib nrog kev xeb ntawm cov kua qaub thiab alkalis muaj zog, nws tseem tsis txav; Txawm tias nyob rau qhov kub siab ze rau ntawm qhov chaw ntawm lub hnub, nws tseem tuaj yeem tswj tau qhov ruaj khov.
Qhov kev sib xyaw ua ke ntawm cov yam ntxwv no tau tso cai rau silicon carbide kom yeej ntawm kab pib txij thaum pib. Xav txog tias thaum lwm cov ntaub ntawv tseem tab tom tawm tsam seb lawv puas tuaj yeem ua rau hauv daim duab no, silicon carbide twb xav txog yuav ua li cas kom nws zoo dua. Nws lub zog siab thiab kev ruaj khov tso cai rau cov neeg tsim qauv kom tsis txhob hloov kho qhov kev tsim qauv zoo tshaj plaws thawj zaug kom haum rau cov khoom siv.
Yooj yim thiab siv tau ntau yam 'shaping magic'
Muaj cov ntaub ntawv zoo xwb tsis txaus. Yuav kom hloov silicon carbide mus ua ntau yam khoom txawv txawv, kuj xav tau "kev ua khawv koob" tshwj xeeb. Cov kws ua vaj tse niaj hnub no tau paub ntau yam txuj ci los ua silicon carbide "mloog lus":
Kev siv tshuab nias txias isostatic zoo li muab ib daim khaub ncaws tshwj xeeb "nruj" rau ntawm cov hmoov silicon carbide. Hauv qab kev siab siab, cov hmoov tuaj yeem lo rau txhua qhov me me ntawm cov pwm, txawm tias cov qhov sib txawv thiab cov qauv me me tuaj yeem rov ua dua tau zoo. Kev siv tshuab laser coj dej zoo li "riam phais" zoo nkauj, siv cov dej ntws ceev ceev los coj lub laser thiab txiav ntau yam qauv nyuaj rau ntawm cov silicon carbide tawv, uas yuav tsis ua rau cov khoom tawg thiab tuaj yeem ua kom du.
Cov kev tshawb pom tshiab no tau tso silicon carbide tawm ntawm daim ntawv lo ntawm cov khoom siv ceramics ib txwm muaj li "brittle, hard, thiab nyuaj rau ua". Ib yam li molding nrog roj hmab av nplaum, cov thev naus laus zis tam sim no tso cai rau silicon carbide hmoov ua ntej tsim lub cev uas ze rau nws cov duab kawg, thiab tom qab ntawd dhau los ntawm kev kub siab sintering kom dhau los ua cov khoom tiav lawm, txo qhov nyuaj ntawm kev ua tom ntej.
Lub Luag Haujlwm Txhim Khu Kev Ruaj Ntseg Hauv Ib puag ncig hnyav
Vim li cas peb thiaj yuav tsum siv zog ntau heev los siv silicon carbide los ua cov khoom tsis sib xws? Vim tias ntau zaus, cov khoom tsim tshwj xeeb no yuav tsum ua haujlwm hauv qhov chaw nyuaj tshaj plaws.
Hauv lub lauj kaub ua kua qaub ntawm lub Hoobkas tshuaj lom neeg, cov kav dej silicon carbide zoo li tuaj yeem tiv taus xeb; Hauv thaj chaw kub siab ntawm cov cav dav hlau, cov brackets zoo li silicon carbide tuaj yeem tiv taus kev sim ntawm ntau txhiab degrees; Hauv cov khoom siv precision rau kev tsim khoom semiconductor, cov khoom zoo li silicon carbide tuaj yeem tswj tau qhov tseeb ruaj khov. Hauv cov xwm txheej no, cov duab tshwj xeeb tsis yog kom zoo nkauj, tab sis kom ua tiav cov haujlwm tshwj xeeb - nws yuav yog ua kom cov kua dej ntws du, lossis nws yuav yog kom tshem tawm cua sov kom sib npaug.
Qhov tshwj xeeb ntawm silicon carbide yog nws lub peev xwm los ua kom tau raws li qhov xav tau ntawm kev tsim qauv ntawm cov qauv tsis sib xws thiab ua haujlwm tau zoo hauv qhov chaw kub heev rau lub sijhawm ntev. Kev sib xyaw ua ke ntawm kev ruaj khov thiab kev ywj pheej no ua rau nws yog cov khoom siv nyiam hauv ntau qhov chaw lag luam.
Yav tom ntej ntawm kev tsim khoom raws li tus neeg xav tau
Nrog kev nce qib ntawm thev naus laus zis tsim khoom, lub peev xwm hloov kho cov khoom siv silicon carbide zoo li niaj zaus txhim kho. Txij li cov qauv me me ob peb millimeters mus rau cov khoom loj ob peb meters ntev, los ntawm kev khoov yooj yim mus rau cov polyhedra nyuaj, silicon carbide tab tom rhuav tshem tib neeg txoj kev nkag siab txog cov khoom siv ceramic.
Rau cov lag luam, qhov no txhais tau tias muaj ntau txoj hauv kev tshiab - tsis tas yuav txwv cov tswv yim tsim qauv rau cov khoom txheem, thiab muaj peev xwm kho cov kev daws teeb meem zoo tshaj plaws raws li qhov xav tau tiag tiag. Rau tag nrho cov lag luam kev lag luam, qhov nrov ntawm cov khoom siv silicon carbide yog tsav tsheb kev tsim cov khoom siv mus rau kev ua haujlwm zoo dua, ruaj khov, thiab raug.
Cov khoom siv khawv koob no, nrog nws "lub zog tawv" thiab "kev ua tes ua taw txawj ntse", hloov cov qauv tsim tsis zoo uas ib zaug nyob rau ntawm daim phiaj xwm mus rau hauv cov zog ua tau zoo uas tsav kev nce qib hauv kev lag luam.
Lub sijhawm tshaj tawm: Lub Yim Hli-01-2025