Qhov purity ntawm graphite hmoov hauv cov khoom siv graphite electrode yog ib qho tseem ceeb ntawm graphite hmoov thiab yog ib yam dab tsi uas cov neeg siv graphite hmoov thiab graphite hmoov yuav tsum nkag siab. Graphite nws tus kheej yog cov khoom siv crystalline ntuj tsim ntawm carbon, thiab cov pa roj carbon ruaj khov yog qhov qhia tseem ceeb ntawm qhov purity ntawm graphite hmoov. Ua ntej tawm hauv lub Hoobkas lossis ua ntxiv, graphite hmoov yuav tsum dhau ntau yam kev sim parameter, ntawm cov kev sim purity ntawm graphite hmoov yog ib qho tseem ceeb.
Kev ntsuas qhov huv ntawm cov hmoov graphite yog los nrhiav qhov sib piv ntawm cov pa roj carbon ruaj khov hauv cov hmoov graphite. Vim tias graphite muaj kev ruaj khov tshuaj zoo ntawm chav tsev kub, nws tsis yooj yim los txiav txim siab ncaj qha nws cov pa roj carbon. Cov pa roj carbon feem ntau yog xam los ntawm qhov kub siab volatilization ntawm cov khoom siv uas yuav tsum tau kuaj. Ntawd yog, cov pa roj carbon yog xam raws li tus nqi lej ntawm graphite uas raug oxidized rau hauv carbon dioxide thiab volatilized ntawm qhov kub siab. Txoj kev xam rau qhov huv ntawm cov hmoov graphite yog tias cov pa roj carbon ruaj khov (%) = 100% - tshauv (%) - volatile matter (%).
Cov khoom siv tshuaj lom neeg txhua hnub ntawm graphene
Txoj kev tshwj xeeb rau kev sim qhov huv ntawm cov hmoov graphite yog raws li nram no: Siv lub tshuab ntsuas hluav taws xob los ntsuas qhov hnyav ob qho piv txwv ntawm cov hmoov graphite uas hnyav 1-gram, thiab muab tso rau hauv lub khob porcelain ob lub hau thiab lub nkoj graphite uas paub qhov hnyav. Ziab lawv hauv qhov cub kom qhuav 105 ℃ kom txog thaum lawv mus txog qhov hnyav uas xav tau, thiab sau qhov hnyav G1 thiab G2 ntawm cov hmoov graphite. Muab lub khob porcelain ob lub hau uas muaj cov hmoov graphite tso rau hauv lub cub tawg kub thiab khaws cia rau qhov kub tas li ntawm 950 ℃ rau 7 feeb nrog lub moos nres. Tom qab ntawd coj nws tawm thiab txias rau qhov kub hauv chav tsev hauv lub tshuab desiccator. Hnyav cov hmoov graphite li G3. Siv lub nkoj graphite uas muaj cov hmoov graphite thiab khaws cia rau qhov kub tas li ntawm 950 ℃ rau 90 feeb hauv lub cub tawg kub. Tom qab ntawd coj cov hmoov graphite tawm thiab txias rau qhov kub hauv chav tsev. Thaum lub sijhawm no, qhov hnyav ntawm cov khoom siv yog qhov hnyav ntawm cov tshauv G4. Ua ntej, xam cov khoom volatile ntawm graphite hmoov V (%) = (G1-G3) / G1 × 100%. Yog li, cov mis xam rau qhov purity ntawm graphite hmoov C (%) = [(G2-V- G4) / G2] × 100% tau txais. Qhov purity ntawm graphite hmoov yog ib qho tseem ceeb heev, tshwj xeeb tshaj yog thaum kuaj qhov purity ntawm high-purity graphite hmoov. Tsuas yog thaum qhov purity ntawm graphite hmoov ua tau raws li qhov purity xav tau ntawm high-purity graphite hmoov thiaj li suav tias yog cov khoom tsim nyog. Kev lag luam pwm graphite tau maj mam hloov pauv los ntawm tus qauv ib txwm mus rau ntau yam kev coj ua nrog nws txoj kev loj hlob. Nws tsis tshua muaj rau cov tuam txhab koom ua ke thiab hla ciam teb kom muaj sia nyob thiab loj hlob. Hauv qhov chaw thov yav tom ntej, kev siv khoom kuj tseem yuav muaj kev nrhiav khoom ntau dua thiab kev tshaj lij.
Cov hluav taws xob graphite
Yog li ntawd, kev lag luam pwm graphite tab tom hloov pauv kom ua raws li qhov sib txawv ntawm The Times thiab txhim kho thiab nplua nuj cov khoom lag luam. Kev txhim kho ntawm ib lub tuam txhab yeej xav tau kev tshwj xeeb. Ib tus neeg faib khoom tau hais tias, nyob rau hauv qhov xwm txheej tam sim no, muaj ob peb lub tuam txhab tuaj yeem ua haujlwm zoo heev hauv kev txhim kho hla kev lag luam. Xws li cov vuas graphite pwm, graphite pwm uas hla cov vuas, cov txee uas hla graphite pwm, thiab lwm yam. Hauv txhua qhov chaw, muaj nws tus kheej qhov txwv thiab qhov tshwj xeeb, uas tsis tuaj yeem ua tiav los ntawm ib lub tuam txhab. Kev sib sau ua ke thiab kev txhim kho ntawm cov txuj ci, cov thev naus laus zis thiab cov channel txhua yam xav tau ib qho txheej txheem.
Lub Rooj Sib Tham Txog Chav Ua Noj thiab Chav Dej Zaum 20 tau pib lawm. Cov neeg ua haujlwm hauv kev lag luam tau tsom mus rau thaj chaw ntawm cov pwm graphite ntau dua thaum tham txog kev nthuav qhia chav ua noj thiab chav dej. Tab sis qhov tseeb, chav ua noj thiab chav dej tsis sib cais. Thaum lub sijhawm txhim kho kev nthuav qhia dhau ob peb xyoos dhau los, tshwj xeeb tshaj yog nrog kev qhib tag nrho ntawm Hall N, cov tuam txhab txee, cov tuam txhab khoom siv hauv chav ua noj, cov tuam txhab qab nthab thiab lwm cov chaw tsim khoom tau tsiv mus rau hauv, thiab ntau lub tuam txhab txhawb nqa kuj tau nkag mus rau ib qho tom qab ib qho, ua rau cov haujlwm thiab cov ntsiab lus tseem ceeb ntawm kev nthuav qhia nplua nuj thiab tiav, thiab cov txiaj ntsig tuaj yeem loj dua!
Txawm li cas los xij, kev sib koom ua ke ntawm kev lag luam zoo li tsis zam. Qhov laj thawj vim li cas cov pwm graphite, txee, khoom siv hauv chav ua noj thiab qab nthab tuaj yeem tso tawm hauv ib lub sijhawm nthuav qhia yog qhov xav tau ntawm kev ua lag luam thiab cov neeg siv khoom. Tau kawg, kev tshwj xeeb thiab kev sib txawv lawv tus kheej yog cov ncauj lus uas tau tsim kho hauv txoj kev sib tham. Lub Rooj Sib Tham Chav Ua Noj thiab Chav Dej Shanghai tam sim no tau nkag mus rau theem tshiab. Ob qho tib si lub rooj sib tham thiab cov lag luam tau ua kom maj mam npaj rau kev hloov pauv. Qhov sib txawv no yog qhov tseeb ntawm kev hloov pauv ntawm "Ua nyob rau hauv Suav teb". Ntawm qhov kev nthuav qhia no uas tau qhib rau lub Rau Hli 3, 2015, peb yuav pom ntau qhov cim ntawm "Internet Plus", ntau qhov cim ntawm "kev txawj ntse", thiab ntau qhov kev coj ua tsawg kawg nkaus thiab kev coj ua tshiab.
Lub sijhawm tshaj tawm: Tsib Hlis-26-2025