Los ntawm kev thauj mus los rau cov tsheb tshiab, los ntawm cov chaw kub kub mus rau aerospace satellites, cov khoom hu ua "kev lag luam pob zeb diamond" yog ntsiag to rewriting ciam teb ntawm kev tsim niaj hnub.Silicon carbide ceramics, cov khoom siv superhard nrog lub hardness thib ob tsuas yog cov pob zeb diamond ntuj, ua rau lub kiv puag ncig ntsiag to hauv ntau yam xws li kev lag luam niaj hnub, semiconductors, aerospace, thiab lub zog tshiab vim nws qhov kub tsis kam, muaj zog hluav taws xob tiv thaiv, thiab thermal conductivity zoo heev.
Thaum 'cov pob txha tawv' ntsib precision manufacturing
Yog hais tias cov tsoos ceramics yog xiav thiab dawb plooj (porcelain) hauv kev kos duab thiab khoom siv tes ua, ces silicon carbide ceramics zoo li Swiss watches hauv cov cuab yeej precision. Nws hardness yog 3-5 npaug ntawm cov ceramics zoo tib yam, thiab qhov hardness nyob ze rau tej yam ntuj tso pob zeb diamond ua rau cov txheej txheem machining zoo li carving rau steel daim hlau - tej cuab yeej zoo tib yam hnav tawm ntawm ib tug astonishing ceev thaum txiav. Dab tsi yog qhov nyuaj tshaj yog tias qhov "tawv" ntawm silicon carbide ua rau nws yooj yim rau kev tawg nrog txawm tias me ntsis yuam kev thaum ua, tshwj xeeb tshaj yog rau qee qhov nyias-walled uas yuav tsum tau ceev faj tib yam li cov khoom siv lead ua.
Tab sis qhov kev thov ntawm kev lag luam niaj hnub no yog tsav kev ua haujlwm thev naus laus zis. Engineers tau pom tias tus yuam sij rau kev daws qhov teeb meem no yog nyob rau hauv kev sib xyaw ntawm rigidity thiab saj zawg zog: tswj cov khoom siv hauv lub cev thaum siv kev tswj xyuas meej thaum lub sijhawm ua haujlwm. Ib yam li cov kws ua zaub mov sab saum toj uas paub txog cov cua sov, cov txheej txheem ua haujlwm niaj hnub no maj mam ua cov khoom tawv tawv no los ntawm kev tswj xyuas qhov kub, siab, thiab kev vibration zaus.
Peb tus yuam sij los qhib cov pob zeb diamond
1. Kub nias molding
Qhov no yog ib txoj hauv kev zoo tshaj plaws rau kev ua silicon carbide ceramics. Txoj kev no tso cov hmoov silicon carbide los yog cov hmoov sib xyaw rau hauv cov pwm kub nias thiab ua rau nws zoo nyob rau hauv qhov kub thiab txias. Nws muaj kev ua haujlwm siab ntau lawm thiab tsim cov neeg raug, thiab tsim nyog rau kev tsim cov khoom loj silicon carbide ceramic xws li cov cuab yeej txiav, kub kos aluminium daim hlau, thiab lwm yam.
2. Gouting molding
Qhov no yog tus nqi qis thiab nrawm tsim txoj hauv kev rau silicon carbide ceramic khoom. Txoj kev no sib tov silicon carbide hmoov nrog lwm cov khoom siv ntxiv, ntxiv rau hauv dej los ua cov slurry, thiab txhaj rau hauv pwm pwm. Tom qab ntawd, nws tau ua tiav thiab tsim los ntawm kev ziab thiab kub-kub sintering, nrog rau lub voj voog luv luv thiab tus nqi qis. Nws yog qhov tsim nyog rau kev npaj cov khoom muaj zog, siab ceev thiab cov khoom siv thauj khoom.
3. hmoov metallurgy
Hmoov metallurgy yog ib txoj kev sib tov thiab shaping silicon carbide hmoov nyob rau hauv ib qho kev faib ua feem, thiab ces sintering nws nyob rau hauv kub thiab siab. Cov txheej txheem no muaj cov txheej txheem tsim khoom yooj yim, cov khoom sib txawv, thiab kev ua haujlwm siab, ua rau nws tsim nyog rau kev tsim cov khoom siv high-precision, high-strength, thiab hnav-resistant ceramic khoom.
Los ntawm cov qauv kuaj mus rau cov khoom loj ntawm cov kab ntau lawm, qhov kev ua tiav ntawm silicon carbide ceramics tau lees paub qhov tseeb: tsis muaj cov khoom siv uas tsis tuaj yeem ua tiav, tsuas yog cov thev naus laus zis uas tseem tsis tau tawg. Nrog rau kev loj hlob ntawm cov thev naus laus zis tshiab xws li kev ua laser thiab microwave sintering, qhov no ib zaug daunting superhard khoom yog rejuvenating nyob rau hauv ntse factories, txhaj lub zog tseem ceeb rau hauv "Suav ntse manufacturing".
Nyob rau hauv dej hiav txwv loj ntawm qhov chaw tshawb nrhiav thiab cov yoj ntsuab ntawm lub zog huv si, silicon carbide ceramics tau sau cov lus dab neeg ntawm lub sijhawm no nrog lawv cov khoom siv tshwj xeeb ntxim nyiam. Qhov kev sib tw ntawm qhov nyuaj thiab kev txawj ntse no yuav yog qhov tseem ceeb nyob mus ib txhis ntawm tib neeg kev ua txhaum ntawm kev siv tshuab.
Post lub sij hawm: Apr-09-2025