Ua ib hom khoom siv tsis yog hlau inorganic tshiab, cov khoom siv ceramic sintered silicon carbide uas muaj cua sov tau siv dav hauv qhov cub, desulfurization thiab kev tiv thaiv ib puag ncig, kev lag luam tshuaj lom neeg, hlau, aerospace thiab lwm yam teb. Txawm li cas los xij, kev siv cov khoom siv ceramic sintered silicon carbide uas muaj cua sov tseem nyob rau theem ib txwm muaj, thiab muaj ntau qhov chaw thov uas tsis tau loj hlob, thiab qhov loj ntawm kev ua lag luam loj heev. Ua ib lub chaw tsim khoom ntawm cov khoom siv ceramic sintered silicon carbide uas muaj cua sov, peb yuav tsum txuas ntxiv txhawb kev txhim kho kev ua lag luam, txhim kho lub peev xwm tsim khoom, thiab nyob rau hauv txoj haujlwm siab dua hauv daim teb thov tshiab ntawm silicon carbide ceramics.
Qhov sab saud ntawm kev lag luam feem ntau yog kev sintered silicon carbide smelting thiab kev tsim cov hmoov zoo los ntawm kev siv cua sov. Qhov seem tom qab ntawm kev lag luam npog ntau yam, suav nrog yuav luag txhua yam kev lag luam uas xav tau cov khoom siv kub, hnav thiab tiv taus xeb.
(1) Kev lag luam sab saud
Hmoov silicon carbide thiab hmoov hlau silicon yog cov khoom siv tseem ceeb uas kev lag luam xav tau. Kev tsim cov silicon carbide hauv Suav teb tau pib xyoo 1970. Tom qab ntau tshaj 40 xyoo ntawm kev txhim kho, kev lag luam tau mus ntev heev. Kev siv tshuab smelting, cov khoom siv tsim khoom thiab cov ntsuas kev siv hluav taws xob tau mus txog qib zoo. Yuav luag 90% ntawm lub ntiaj teb silicon carbide yog tsim nyob rau hauv Suav teb. Nyob rau hauv xyoo tas los no, tus nqi ntawm cov hmoov silicon carbide tsis tau hloov pauv ntau; Cov hmoov hlau silicon feem ntau yog tsim nyob rau hauv Yunnan, Guizhou, Sichuan thiab lwm thaj chaw sab qab teb sab hnub poob. Thaum dej thiab hluav taws xob muaj ntau nyob rau lub caij ntuj sov, tus nqi ntawm cov hmoov hlau silicon pheej yig, thaum lub caij ntuj no, tus nqi siab dua me ntsis thiab tsis ruaj khov, tab sis feem ntau ruaj khov. Kev hloov pauv tus nqi ntawm cov khoom siv raw hauv kev lag luam upstream muaj qee qhov cuam tshuam rau cov cai nqi khoom thiab cov nqi ntawm cov tuam txhab hauv kev lag luam.
(2) kev lag luam hauv qab
Cov khoom siv hauv kev lag luam yog cov khoom siv silicon carbide ceramic. Cov khoom siv silicon carbide ceramic tsis yog tsuas yog muaj ntau yam xwb, tab sis kuj muaj kev ua tau zoo heev. Siv dav hauv kev tsim kho, cov khoom siv huv, cov khoom siv niaj hnub, cov khoom siv hlau nplaum, iav-ceramics, cov cub tawg hauv kev lag luam, tsheb, twj tso kua mis, boilers, chaw tsim hluav taws xob, kev tiv thaiv ib puag ncig, kev ua ntawv, roj av, metallurgy, kev lag luam tshuaj lom neeg, tshuab, aerospace thiab lwm yam teb. Nrog rau kev ua tau zoo ntawm cov khoom siv silicon carbide ceramic tau lees paub los ntawm ntau thiab ntau lub lag luam, ntau yam kev siv ntawm cov khoom siv silicon carbide ceramic yuav dav dua. Kev noj qab haus huv, kev loj hlob sai thiab kev loj hlob ntawm kev lag luam hauv qab yuav muab qhov chaw ua lag luam dav rau kev lag luam thiab txhawb kev loj hlob ntawm tag nrho kev lag luam.
Nrog rau kev siv dav dav ntawm cov khoom siv sintered silicon carbide ceramic uas muaj cua sov, qhov kev thov ntawm kev ua lag luam kuj nce ntxiv, nyiam ib feem loj ntawm cov peev txheej rau hauv kev tsim khoom siv silicon carbide ceramic. Ntawm ib sab tes, qhov ntsuas ntawm kev lag luam silicon carbide txuas ntxiv nthuav dav, thiab cov khoom tsim hauv cheeb tsam thawj zaug maj mam faib mus rau txhua qhov chaw ntawm lub tebchaws. Hauv lub sijhawm luv luv ntawm kaum xyoo, kev lag luam silicon carbide tau tsim kho sai. Ntawm qhov tod tes, thaum qhov ntsuas ntawm kev lag luam txuas ntxiv nthuav dav, nws kuj tab tom ntsib qhov xwm txheej ntawm kev sib tw vicious. Vim yog qhov nkag qis ntawm kev lag luam, tus lej ntawm cov tuam txhab tsim khoom loj, qhov loj ntawm cov tuam txhab sib txawv, thiab qhov zoo ntawm cov khoom tsis sib xws.
Qee lub tuam txhab loj tsom mus rau kev txhim kho thev naus laus zis thiab kev tshawb fawb thiab kev tsim khoom tshiab; Qhov ntsuas txuas ntxiv nthuav dav, thiab kev pom thiab kev cuam tshuam ntawm lub tuam txhab nce ntxiv txhua hnub. Tib lub sijhawm, ntau thiab ntau lub tuam txhab me me tsuas yog tuaj yeem cia siab rau txoj kev pheej yig kom tau txais kev txiav txim, ua rau muaj kev sib tw hnyav hauv kev lag luam. Kev sib tw hauv kev lag luam yog qhov hnyav, thiab kev lag luam kuj tseem yuav qhia txog kev sib cais.
Lub sijhawm tshaj tawm: Lub Xya Hli-10-2023