Txij li cov kav dej thauj mus los mus rau cov tsheb siv hluav taws xob tshiab, los ntawm cov cub tawg kub siab mus rau cov satellites aerospace, ib yam khoom hu ua "industrial diamond" tab tom maj mam rov sau cov ciam teb ntawm kev tsim khoom niaj hnub no.Cov khoom siv silicon carbide ceramics, ib yam khoom siv superhard uas muaj qhov nyuaj thib ob tsuas yog pob zeb diamond ntuj, tab tom ua rau muaj kev hloov pauv ntsiag to hauv ntau qhov chaw xws li kev lag luam niaj hnub no, semiconductors, aerospace, thiab lub zog tshiab vim nws tiv taus kub siab, tiv taus hluav taws xob muaj zog, thiab ua tau zoo heev thermal conductivity.
Thaum 'cov pob txha tawv' ntsib kev tsim khoom raug
Yog tias cov khoom siv ua los ntawm cov av nplaum ib txwm muaj yog cov av nplaum xiav thiab dawb hauv kev kos duab thiab kev ua tes ua, ces cov khoom siv ua los ntawm silicon carbide zoo li cov moos Swiss hauv cov twj paj nruag precision. Nws qhov nyuaj yog 3-5 npaug ntawm cov khoom siv ua los ntawm cov av nplaum ib txwm muaj, thiab qhov nyuaj no ze rau cov pob zeb diamond ntuj ua rau cov txheej txheem machining zoo li carving ntawm cov phaj hlau - cov cuab yeej txiav ib txwm hnav tawm ntawm qhov ceev ceev thaum txiav. Qhov nyuaj dua yog tias qhov xwm txheej "tawv" ntawm silicon carbide ua rau nws yooj yim tawg ntug nrog txawm tias qhov yuam kev me me thaum ua tiav, tshwj xeeb tshaj yog rau qee qhov nyias-phab ntsa uas xav tau kev ceev faj zoo li cov duab kos duab siv lead ua.
Tab sis qhov kev thov ntawm kev lag luam niaj hnub no tab tom tsav tsheb kev tsim kho tshiab. Cov kws ua vaj tse tau pom tias qhov tseem ceeb rau kev daws qhov teeb meem no yog nyob rau hauv kev sib xyaw ua ke ntawm kev ruaj khov thiab kev ywj pheej: tswj cov khoom siv sab hauv thaum siv kev tswj hwm meej thaum lub sijhawm ua tiav. Ib yam li cov kws ua zaub mov saum toj kawg nkaus uas tswj hwm qhov kub, cov txheej txheem ua tiav niaj hnub no maj mam tswj cov khoom tawv ncauj no los ntawm kev tswj hwm qhov kub, siab, thiab zaus kev co.
Peb tus yuam sij kom qhib tau cov pob zeb diamond hauv kev lag luam
1. Kub nias molding
Qhov no yog ib qho ntawm cov txheej txheem siv ntau tshaj plaws rau kev ua cov khoom siv silicon carbide ceramics. Txoj kev no muab cov hmoov silicon carbide lossis cov hmoov sib xyaw rau hauv cov pwm kub thiab ua kom nws zoo li qub hauv qab qhov kub thiab siab. Nws muaj kev ua haujlwm siab thiab kev ua kom raug, thiab tsim nyog rau kev tsim cov khoom siv silicon carbide ceramic loj xws li cov cuab yeej txiav, cov phaj txhuas kub, thiab lwm yam.
2. Kev txhaj tshuaj molding
Qhov no yog ib txoj kev pheej yig thiab ua sai rau cov khoom siv silicon carbide ceramic. Txoj kev no sib tov cov hmoov silicon carbide nrog lwm cov khoom ntxiv, ntxiv rau hauv dej kom ua cov slurry, thiab txhaj rau hauv pwm molding. Tom qab ntawd, nws raug ua thiab tsim los ntawm kev ziab thiab sintering kub siab, nrog rau lub voj voog ua haujlwm luv luv thiab tus nqi qis. Nws yog qhov tsim nyog rau kev npaj cov khoom muaj zog, cov khoom ntom ntom thiab cov khoom thauj khoom.
3. Hmoov hlau metallurgy
Hmoov metallurgy yog ib txoj kev sib tov thiab ua cov hmoov silicon carbide hauv ib qho kev faib ua feem, thiab tom qab ntawd sintering nws ntawm qhov kub thiab txias siab thiab siab siab. Txoj kev no muaj cov txheej txheem tsim khoom yooj yim, ntau yam duab khoom, thiab kev ua tiav siab, ua rau nws tsim nyog rau kev tsim cov khoom siv ceramic uas muaj qhov tseeb siab, muaj zog siab, thiab hnav tsis kam.
Txij li cov qauv kuaj hauv chaw kuaj mus rau kev tsim khoom loj ntawm cov kab ntau lawm, qhov kev tawg ua tiav hauv kev ua cov khoom siv silicon carbide ceramics 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, cov khoom siv superhard uas ib zaug ua rau muaj kev nyuaj siab no tau rov ua dua tshiab hauv cov chaw tsim khoom ntse, txhaj tshuaj lub zog nyuaj rau hauv "Kev tsim khoom ntse hauv Suav teb".
Hauv dej hiav txwv loj heev ntawm kev tshawb nrhiav qhov chaw thiab nthwv dej ntsuab ntawm lub zog huv, silicon carbide ceramics tab tom sau ib zaj dab neeg kev lag luam ntawm lub sijhawm no nrog lawv cov khoom siv zoo nkauj tshwj xeeb. Qhov kev sib tw ntawm qhov nyuaj thiab kev txawj ntse no yuav yog ib qho piv txwv mus ib txhis ntawm tib neeg tawg hla cov ciam teb thev naus laus zis.
Lub sijhawm tshaj tawm: Plaub Hlis-09-2025