Nyob nruab nrab ntawm cov paj tawg paj hauv cov nroj tsuag hlau, cov nplaim hluav taws kub hnyiab hauv cov ceramic kiln, thiab cov pos nphuab hauv cov nroj tsuag tshuaj, ib puas xyoo kev sib ntaus sib tua tiv thaiv kub kub tsis tau tso tseg. Tom qab cov khaub ncaws tiv thaiv hnyav ntawm cov neeg ua haujlwm, muaj cov khoom siv ceramic dub uas ntsiag to rov sau dua cov cai muaj sia nyob ntawm kev lag luam tsoos -silicon carbide ceramics. Cov khoom siv zoo li no tau dhau los ua "lub thauj tog rau nkoj" ntawm cov chaw ua haujlwm kub kub.
1, Lub 'millennium armor' nyob rau hauv steelmaking cub
Nkag mus rau hauv kev cob qhia casting, molten hlau ntawm 1600 ℃ yob nyob rau hauv lub cub tawg, thiab cov tsoos refractory bricks feem ntau yuav tsum tau "tso tawm" nyob rau hauv rau lub hlis. Cov ntaub ntawv sib xyaw ua los ntawm silicon carbide ceramics zoo li muab cov lus dab neeg "dag scales" rau ntawm qhov cub. Peb cov neeg muas zaub tau muab cov lus qhia tiag tiag: 'Cov txheej txheem tsaus nti no tau tiv thaiv kev yaig ntawm cov hlau molten rau peb xyoos, thiab muaj zog ntau dua li qub refractory cib.' Cov cuab yeej tiv thaiv corrosion no tau txuas ntxiv lub voj voog txij nkawm los ntawm ib hlis ib zaug mus rau ib xyoos ib zaug, txo qis kev poob qis ntau lawm.
2, 'Phoenix Tais' hauv Ceramic Kilns
Nyob rau hauv xiav thiab dawb plooj (porcelain kilns) nyob rau hauv Jingdezhen, cov rooj tog zaum hauv qhov cub uas nqa cov qhov khoob tau raug kuaj ntawm 1300 ℃. Ib txwm alumina txhawb nqa feem ntau tawg vim thermal shock, thaum silicon carbide ceramic kiln rooj tog zoo li phoenix reborn los ntawm cov tshauv, sawv ntsug nyob rau hauv ceev ceev txias thiab cua sov. Ib tug qub txeeg qub teg ntawm cov cuab yeej cuab tam tsis muaj pov thawj tau nthuav tawm lub nplhaib nrog lub ntsej muag du thiab tshiab: "Thaum yav dhau los, thaum tua kaum lub kiln, peb yuav tsum tau hloov cov ntaub qhwv, tab sis tam sim no cov batch no tau ua haujlwm tau ob xyoos, thiab cov txiaj ntsig kev hloov pauv hauv qhov cub tau ua kom ruaj khov. Qhov tshwj xeeb thermal conductivity tau nce qhov hluav taws xob tawm los ntawm 15%.
3, Lub 'tiv thaiv corrosion' ntawm cov nroj tsuag tshuaj
Qhov thib ob nres ntawm corrosive gases thiab kub kub yog ib zaug npau suav phem rau cov tshuaj cog reactors. Tom qab peb cov neeg siv khoom tau qhia txog silicon carbide ceramic hauv ob sab phlu rau hauv cov tshuaj tiv thaiv ntauwd, cov cuab yeej siv tau txuas ntxiv los ntawm 2 xyoos mus rau 8 xyoo. Cov txheej no ntawm cov tawv dub 'dawb' tsis tsuas yog tiv taus qhov kub thiab txias ntawm 500 ℃, tab sis kuj tsis tuaj yeem raug tom los ntawm cov kua qaub muaj zog. Qhov kev tiv thaiv dual no ua tiav cov txiaj ntsig zoo hauv cov khoom siv kev nyab xeeb hauv qhov chaw muaj kev phom sij.
4 、 Cov "cov iav ruaj khov" ntawm cov kab kho cua sov
Ntawm txoj kab kev kho cua sov ntawm cov khoom siv tsheb, cov khoom siv conveyor tau raug rau lub sijhawm ntev quenching thiab kub-kub roasting. Tom qab hloov mus rau silicon carbide ceramic rollers, cov kab ntau lawm ntawm ib lub lag luam tau teeb tsa cov ntaub ntawv txuas mus ntxiv rau 180 hnub. Cov neeg siv khoom tawm tswv yim hais tias: "Yav dhau los, cov hlau yob softened thaum raug tshav kub, tab sis tam sim no cov dub ceramic chais yog zoo li 'siab kub perpetual motion machines'.
Txawm hais tias nyob rau hauv kev ua lag luam xws li aerospace cav nozzles thiab lub zog tshiab lub tsheb hluav taws xob tswj cov tshuab, qhov kev lag luam ib txwm muaj "dub thev naus laus zis" tau tshwm sim. Los ntawm cov bronze furnaces ntawm Warring States lub sij hawm mus rau ntse factories, los ntawm cov av nplaum cib nyob rau hauv ob txhais tes ntawm kiln cov neeg ua hauj lwm mus rau precision Cheebtsam nyob rau hauv spacecraft, silicon carbide ceramics yeej ib txwm nyob rau hauv kev sib tsoo ntawm kub kub thiab kev vam meej, qhia tau hais tias cov qub txeeg qub tes thiab breakthrough ntawm Suav ntse tsim.
Cov khoom lag luam zoo yuav tsum zoo li cov craftsmanship ntawm craftsmen - muaj peev xwm tiv taus kub ntawm ntau txhiab degrees thiab khaws cia ib puas xyoo ntawm qub txeeg qub teg. Qhov no yuav yog qhov kev tshoov siab tshaj plaws uas silicon carbide ceramics coj mus rau kev lag luam ib txwm muaj.
Lub sij hawm xa tuaj: Plaub Hlis-21-2025