Kev lag luam thoob ntiaj teb photovoltaic (PV) txuas ntxiv nws qhov kev nthuav dav, nrog rau txhua xyoo kev teeb tsa hnub ci tawg cov ntaub ntawv xyoo dhau los. Kev txhawb nqa qhov kev loj hlob no yog cov khoom lag luam tsim khoom lag luam uas tsim cov khoom lag luam siab tshaj - zoo silicon wafers, thiab ntawm lub plawv ntawm silicon crystal ntau lawm yog isostatic graphite crucibles thiab cov khoom kub kub. Cov khoom lag luam graphite no ua rau muaj kev tswj hwm kev loj hlob ntawm monocrystalline thiab polycrystalline silicon ingots, ncaj qha cuam tshuam rau wafer purity, ntau lawm yield, thiab kawg hnub ci cell efficiency.
Lub ntiaj teb tshwj xeeb graphite kev lag luam rau cov ntawv thov photovoltaic muaj nuj nqis ntawm USD 1,442.34 lab hauv 2025 thiab tau kwv yees kom ncav cuag $ 2,380.46 lab los ntawm 2032, loj hlob ntawm CAGR ruaj khov ntawm 7.42%, raws li PW Kev Pabcuam Kev Tshawb Fawb. Isostatic graphite tso nyiaj rau qhov loj tshaj plaws ntawm cov lag luam no ntawm 67.7%, raws li nws cov khoom siv isotropic ua rau nws tus qauv kub rau silicon siv lead ua kev loj hlob rau cov khoom siv hluav taws xob. Monocrystalline silicon ruber daim ntawv thov sawv cev rau qhov xav tau siab tshaj plaws ntawm 61.9%, cuam tshuam kev lag luam kev hloov pauv mus rau siab dua -kev ua haujlwm zoo monocrystalline hnub ci xov tooj ntawm tes nrog rau PERC, TOPCon, thiab HJT.
Graphite crucibles ua lub nkoj ntim rau molten silicon thaum lub sij hawm siv lead ua loj hlob, ua haujlwm ntawm qhov kub ntawm kwv yees li 1,420℃rau ncua sij hawm ntev -feem ntau pua pua ntawm cov sij hawm ua haujlwm. Nyob rau hauv Czochralski (CZ) txoj kev rau monocrystalline silicon ntau lawm, quartz crucible tuav lub molten silicon, thiab quartz crucible no nws tus kheej txhawb thiab tiv thaiv los ntawm ib tug txheej graphite crucible. Lub graphite crucible muab cov qauv kev txhawb nqa ntawm qhov kub thiab txias, ua kom cov cua sov sib txawv nyob ib puag ncig ntawm cov yaj, thiab tiv thaiv qhov tsis yooj yim dua quartz crucible los ntawm thermal stress thiab mechanical puas.
Tshaj li qhov crucibles, tag nrho thaj chaw kub hauv cov khoom siv lead ua loj hlob yog tsim los ntawm cov khoom tshwj xeeb graphite. Qhov no suav nrog graphite heaters uas tsim cov thermal profile uas yuav tsum tau siv rau kev tswj cov khoom siv lead ua, graphite heat shields uas tswj cov thermal gradients thiab txo lub zog noj, graphite pedestals uas txhawb crucible sib dhos, thiab ntau yam rwb thaiv tsev. Ua ke, cov khoom graphite no tsim qhov chaw ruaj khov, zoo ib puag ncig thermal uas yog qhov tseem ceeb rau kev loj hlob tsis xws luag - dawb silicon crystals nrog cov khoom hluav taws xob zoo ib yam.
Cov kev xav tau ntawm kev ua haujlwm rau PV- qib graphite Cheebtsam yog qhov xav tau heev. High purity yog qhov tseem ceeb tshaj plaws - cov ntsiab lus tshauv yuav tsum tau khaws cia kom qis qis kom tsis txhob muaj kev sib kis ntawm silicon yaj, uas yuav ua rau lub hnub ci ua haujlwm tau zoo. Isostatic graphite yog qhov zoo dua li molded graphite rau cov ntawv thov siab -kawg vim nws 360-degree uniform pressing ua cov khoom uas muaj qhov sib xws, lub zog, thiab thermal conductivity nyob rau hauv tag nrho cov lus qhia. Qhov isotropy no ua kom cov cua sov tsis sib xws thiab qhov kev ntsuas thermal nthuav dav, txo qis thermal kev ntxhov siab uas tuaj yeem ua rau cov khoom siv lead ua tsis xws luag lossis crucible cracking.
Daim duab 1: High- purity isostatic graphite crucibles tsim rau photovoltaic silicon siv lead ua kev loj hlob rauv, muab cov qauv kev txhawb nqa thiab kev faib cov cua sov.
Asia - cheeb tsam Pacific yog tus tswj hwm lub ntiaj teb PV tshwj xeeb graphite lag luam nrog USD 1.04 billion hauv cov nyiaj tau los, suav txog ntau dua 70% ntawm kev thov thoob ntiaj teb. Qhov no qhia txog qhov concentration ntawm hnub ci cell thiab wafer tsim nyob rau hauv Tuam Tshoj, uas tsim ntau tshaj 80% ntawm lub ntiaj teb no lub hnub ci panels. Cov tuam txhab loj hauv Suav teb PV txuas ntxiv nthuav dav zuj zus, uas tau tsav los ntawm ob qho tib si hauv tsev xav tau thiab nthuav tawm kev lag luam xa tawm rau cov khoom siv hnub ci zog.
Huixian Jincheng Abrasive & Graphite Pwm Hoobkascoj ntau tshaj 40 xyoo ntawm graphite kev txawj ntse rau cov khoom siv hluav taws xob photovoltaic, kev tsim khoom siab - zoo graphite crucibles, cua sov, cov ntaub thaiv npog, thiab kev cai kub cheeb tsam rau silicon siv lead ua kev loj hlob furnaces. Founded hauv 1984 hauv Huixian City, Henan Province -ib qho ntawm Tuam Tshoj cov chaw ua haujlwm graphite keeb kwm- lub tuam txhab tau hloov zuj zus nrog rau kev lag luam PV, txuas ntxiv kho nws cov ntaub ntawv thiab kev ua kom muaj peev xwm ua tau raws li cov kev xav tau ntawm hnub ci kev lag luam.
Jincheng Graphite qhov chaw hwm isostatic graphite thiab siab - qib molded graphite raw cov ntaub ntawv rau PV daim ntaub ntawv, xaiv cov qib uas sib npaug purity, thermal conductivity, mechanical zog, thiab nqi-effectiveness. Lub tuam txhab 50+ CNC machining chaw pab kom precision fabrication ntawm graphite Cheebtsam nrog lub siab tshaj plaws qhov ntev mus txog 1,000 mm, haum rau nruab nrab thiab loj -scale siv lead ua kev loj hlob rauv. Txhua yam khoom yog machined kom nruj dimensional tolerances kom haum haum thiab kev sib raug zoo nyob rau hauv lub cub tawg kub cheeb tsam sib dhos.
Multiple vacuum impregnation cycles are applied to enhance density and close internal porosity, further improving thermal uniformity and extending component service life. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov cua sov graphite thiab cov crucibles uas tau rov ua dua thermal cycling, raws li cov porosity txo qis thermal qaug zog tawg thiab tiv thaiv silicon melt infiltration. Lub tuam txhab kuj tseem siv cov txheej txheem kev ua tiav ntawm cov txheej txheem ua tiav, ua tiav cov txheej txheem du, zoo ib yam uas txo cov khoom tsim tawm thiab txo qhov kev pheej hmoo ntawm kev sib kis hauv qhov chaw loj hlob.
Nrog rau cov nqi tsim khoom txhua xyoo ntawm RMB 20 lab, Jincheng Graphite ua haujlwm ruaj khov nruab nrab -tier tus neeg muag khoom rau PV cov khoom lag luam thiab cov chaw cob qhia kev loj hlob thoob plaws Suav teb. Lub tuam txhab kev tsim khoom muaj peev xwm tso cai rau nws los tsim cov khoom siv graphite raws li cov neeg siv khoom kos duab, ua kom haum rau cov qauv tsim hluav taws xob tshwj xeeb, qhov ntau thiab tsawg siv lead ua, thiab cov txheej txheem tsis ua haujlwm. Qhov kev hloov pauv no tau ua rau nws muaj txiaj ntsig tus khub rau ob qho tib si tsim PV tuam ntxhab thiab cov tsim tawm hnub ci thev naus laus zis.
Raws li kev lag luam PV txuas ntxiv mus, cov kev xav tau ntawm graphite yuav txuas ntxiv mus. L txoj kab uas hla siv lead ua loj hlob furnaces xav tau loj dua, siab dua -lub zog graphite crucibles thiab cov cua sov. N- hom solar cell technologies (TOPCon, HJT) xav tau ntau dua - cov ntaub ntawv graphite purity kom tswj tau cov neeg tsawg tsawg lub neej. Thiab kev siv zog tas mus li los txo cov nqi tsim khoom thawb graphite cov neeg muag khoom los txhim kho cov khoom siv kom ruaj khov thiab txuas ntxiv lub neej kev pab cuam. Rau Jincheng Graphite, kev nqis peev tsis tu ncua hauv cov ntaub ntawv tshawb fawb, kev ua kom zoo dua qub, thiab kev ua haujlwm zoo yuav yog qhov tseem ceeb rau kev ntes cov hauv kev hauv ntiaj teb kev lag luam loj tshaj plaws photovoltaic.
