Cov peev txheej
Ruitai Chav Ua Noj Riam: Koj qhov Premier Qhov Chaw rau Kev Cai Chav Ua Noj Riam Teeb los ntawm Tuam Tshoj
Lus
Ruitai Chav Ua Noj Riam: Koj qhov Premier Qhov Chaw rau Kev Cai Chav Ua Noj Riam Teeb los ntawm Tuam Tshoj
Muaj ob hom txheej txheem txheej txheej: tshuaj vapor deposition (cvd) thiab lub cev vapor deposition (pvd) tam sim no. Nyob rau hauv xyoo tas los no, qee qhov txheej txheem txheej txheej tshiab tau tshwm sim, uas muaj kev cia siab rau daim ntawv thov zoo.
CVD
CVD txoj kev, uas belongs rau atomic deposition, yog ib txoj kev ntawm kev tsim cov khoom deposition txheej nyob rau saum npoo ntawm cua sov matrix los ntawm kev siv vapor, hydrogen thiab lwm yam tshuaj Cheebtsam ntawm hlau halide ntawm kub ntawm 950 ~ 1050 ℃. Cov txheej txheem suav nrog peb theem: vaporization ntawm cov khoom siv, thauj mus rau thaj tsam ntawm matrix thiab tsim ntawm overlay ntawm matrix.
Ntawm txhua yam ntawm cvd txoj kev, lub tshuab nqus tsev ion bombardment thiab magnetron ion tshuaj tiv thaiv txau yog siv ntau tshaj. cvd tshuab yog tsuas yog siv rau txheej txheej ntawm cemented carbide tej cuab yeej, uas yog tsim rau kev kub ceev roughing thiab semi-tiav ntawm nruab nrab thiab hnyav txiav.
Piv nrog rau lwm cov txheej txheem txheej, cvd txoj kev tsis tsuas yog muaj qhov zoo ntawm cov khoom siv yooj yim, cov txheej txheem paub tab, tab sis kuj muaj qhov zoo hauv qab no:
Muaj ntau hom sediments, uas tuaj yeem coated nrog hlau, alloys, carbides, nitrides, borides, oxides, carbon nitrides, oxygen nitrides, hydro-carbon nitrides, thiab lwm yam: Nrog rau siab permeability thiab uniformity, multilayer txheej nrog cov ntaub so ntswg sib txawv tuaj yeem tau txais, thiab txheej txheej thickness yog uniform. Tus nqi deposition yog siab thiab yooj yim los tswj. Cov txheej muaj siab purity thiab nplua thiab ntom nplej. Muaj zog adhesion tuaj yeem tau cov txheej tuab. Tus nqi qis txheej txheem, haum rau ntau lawm.
PVD
PVD txoj kev yog tshem tawm cov ntaub ntawv los ntawm lub hom phiaj los ntawm lub cev cov ntaub ntawv xws li evaporation los yog sputtering, thiab ces tso cov nquag vapor ions mus rau lub substrate los yog ib feem ntawm qhov chaw los ua ib tug zaj duab xis txheej los ntawm lub tshuab nqus tsev los yog ib nrab nqus tsev vacuum. Lub vapor cov tshuaj tiv thaiv ntawm evaporated los yog sputtered hlau atoms ua rau cov deposition ntawm lub tebchaw yuav tsum tau rau ntawm lub cuab tam nto. pvd txheej tuaj yeem coated nrog titanium nitride, titanium carbon nitride, aluminium titanium nitrogen tebchaw, nrog rau ntau yam hlau refractory ntawm carbides thiab nitrides.
PVD thev naus laus zis feem ntau yog siv rau hauv kev kho deg ntawm cov cuab yeej cemented carbide thiab cov cuab yeej kub ceev steel. Nws tau dav siv nyob rau hauv txheej kev kho mob ntawm cemented carbide ntsis, milling cutter, reamer, kais, tshwj xeeb-zoo li tus cuab yeej, vuam cuab yeej thiab hais txog.
MT-CVD
tcn txheej nrog ntom fibrous crystalline morphology tuaj yeem tau los ntawm nruab nrab kub tshuaj vapor deposition (MT-CVD) ntawm 700 ~ 900 ℃. Cov txheej tuab tuaj yeem ncav cuag 8 ~ 10μm, thiab tuaj yeem yog a2o3, tin ntawm txheej txheej los ntawm cvd technology.
MT-CVD txheej hniav yog tsim rau kev kub ceev, siab kub, loj load, qhuav tej yam kev mob, nws lub neej yog hais txog ob zaug siab npaum li cov zoo tib yam txheej hniav. cvd lub ntsiab drawback ntawm txoj kev yog hais tias lub deposition kub yog siab, thiab lub cuab tam annealing thiab deformation yuav tshwm sim thaum lub siab ceev cov cuab yeej steel coated. Yog li cov cuab yeej tso yuav tsum tau quenched.
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