Mainstream thermal teb cov ntaub ntawv: C / C composite cov ntaub ntawv

Cov pa roj carbon-carbon compositesyog ib hom carbon fiber composites, nrog carbon fiber raws li cov khoom txhawb zog thiab deposited carbon raws li cov khoom matrix. Lub matrix ntawmC/C composites yog carbon. Txij li thaum nws yuav luag tag nrho tsim los ntawm cov pa roj carbon monoxide, nws muaj qhov kub thiab txias ua haujlwm zoo thiab tau txais cov khoom muaj zog ntawm cov pa roj carbon fiber ntau. Nws tau raug industrialized nyob rau hauv kev tiv thaiv teb ua ntej.

Kev siv thaj chaw:
C / C cov ntaub ntawv sib xyawnyob rau hauv nruab nrab ntawm cov kev lag luam saw, thiab cov upstream muaj xws li carbon fiber thiab preform manufacturing, thiab downstream daim ntawv thov teb yog kuj dav.C / C cov ntaub ntawv sib xyawFeem ntau yog siv los ua cov ntaub ntawv kub-resistant, cov ntaub ntawv sib txhuam, thiab cov khoom siv ua haujlwm siab. Lawv yog siv nyob rau hauv aerospace ( foob pob ua ntxaij nozzle caj pas linings, thermal tiv thaiv cov ntaub ntawv thiab lub cav thermal structural qhov chaw), nres cov ntaub ntawv (high-speed rail, aircraft nres discs), photovoltaic thermal teb (cov rwb thaiv tsev chim, crucibles, qhia raj thiab lwm yam khoom), biological lub cev (cov pob txha pob txha) thiab lwm yam. Tam sim no, domesticC / C cov ntaub ntawv sib xyawtuam txhab uas muag tsuas yog tsom mus rau ib qho kev sib txuas ntawm cov ntaub ntawv sib xyaw thiab txuas mus rau cov kev taw qhia preform.

C / C ib qho khoom siv muaj kev ua tau zoo tshaj plaws, muaj lub zog qis, muaj cov khoom siv thermal tsawg, ua haujlwm tsis kam, thiab lwm yam, tsis zoo li lwm cov ntaub ntawv, Lub zog ntawm C / C cov ntaub ntawv sib xyaw yuav tsis txo qis tab sis tuaj yeem nce nrog qhov kub thiab txias. Nws yog cov khoom siv hluav taws xob zoo heev, thiab yog li ntawd nws tau ua ntej kev lag luam hauv lub caj pas foob pob hluav taws.

C / C cov khoom sib xyaw tau txais txiaj ntsig zoo ntawm cov khoom siv kho tshuab thiab ua cov khoom ntawm cov roj carbon fiber ntau, thiab muaj cov cua sov ua haujlwm thiab corrosion tsis kam ntawm graphite, thiab tau dhau los ua cov neeg sib tw muaj zog ntawm cov khoom siv graphite. Tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov teb nrog siab zog yuav tsum tau - photovoltaic thermal teb, tus nqi-zoo thiab kev nyab xeeb ntawm C / C puas cov ntaub ntawv tau dhau los ua ib qho tseem ceeb nyob rau hauv lub loj-scale silicon wafers, thiab nws tau los ua ib tug nruj thov. Ntawm qhov tsis sib xws, graphite tau dhau los ua ib qho ntxiv rau C / C cov ntaub ntawv sib xyaw vim muaj peev xwm ntau lawm ntawm cov khoom siv.

Photovoltaic thermal teb daim ntawv thov:
Lub thermal teb yog tag nrho cov txheej txheem rau kev tswj kev loj hlob ntawm monocrystalline silicon los yog zus tau tej cov polycrystalline silicon ingots ntawm ib tug tej yam kub. Nws ua lub luag haujlwm tseem ceeb hauv purity, uniformity thiab lwm yam zoo ntawm monocrystalline silicon thiab polycrystalline silicon, thiab belongs rau pem hauv ntej kawg ntawm crystalline silicon manufacturing kev lag luam. Lub tshav kub tuaj yeem muab faib ua lub thermal teb system ntawm monocrystalline silicon ib leeg siv lead ua rub rauv thiab thermal teb system ntawm polycrystalline ingot rauv raws li cov khoom lag luam. Txij li thaum monocrystalline silicon hlwb muaj kev hloov pauv tau zoo dua li cov hlwb polycrystalline silicon, kev ua lag luam ntawm monocrystalline silicon wafers tseem nce ntxiv, thaum lub lag luam feem ntau ntawm polycrystalline silicon wafers hauv kuv lub teb chaws tau poob qis ib xyoos ib zaug, los ntawm 32.5% hauv 2019 txog 9.3%. nyob rau hauv 2020. Yog li ntawd, thermal teb manufacturers mas siv lub thermal teb technology txoj kev ntawm ib tug siv lead ua rub rauv.

Daim duab 2: Thermal teb nyob rau hauv crystalline silicon manufacturing kev lag luam saw

Lub tshav kub thermal yog tsim los ntawm ntau tshaj li kaum ob lub ntsiab lus, thiab plaub lub ntsiab lus tseem ceeb yog cov khoom siv hluav taws xob, cov raj qhia, lub tog raj kheej rwb thaiv tsev, thiab lub tshuab cua sov. Cov khoom sib txawv muaj qhov sib txawv rau cov khoom siv. Daim duab hauv qab no yog daim duab schematic ntawm lub tshav kub ntawm ib leeg siv lead ua silicon. Lub crucible, cov yeeb nkab qhia, thiab lub tog raj kheej rwb thaiv tsev yog cov txheej txheem ntawm thermal teb system. Lawv lub luag haujlwm tseem ceeb yog txhawm rau txhawb nqa tag nrho qhov kub-kub thermal teb, thiab lawv muaj cov kev xav tau siab rau kev ceev, lub zog, thiab thermal conductivity. Lub tshuab cua sov yog cov cua sov ncaj qha hauv qhov chaw thermal. Nws txoj haujlwm yog muab lub zog thermal. Nws yog feem ntau resistive, yog li nws muaj ntau dua kev xav tau rau cov khoom siv resistivity.