Kev siv cov khoom siv graphite ntau dua li qhov peb xav tau, yog li kev siv cov khoom siv graphite uas peb tam sim no paub txog yog dab tsi?
1,Siv los ua cov khoom siv hluav taws xob
Thaum smelting ntau yam hlau alloys, ferroalloys, los yog tsim calcium carbide (calcium carbide) thiab daj phosphorus siv ib tug hluav taws xob arc rauv los yog submerged arc rauv, ib tug muaj zog tam sim no yog nkag mus rau hauv lub melting cheeb tsam ntawm lub cub hluav taws xob los ntawm carbon electrodes (los yog nruam nws tus kheej ci. electrodes - piv txwv li electrode paste) los yog graphitized electrodes los tsim ib qho arc, hloov hluav taws xob rau hauv lub zog hluav taws xob, thiab nce qhov kub ntawm ib ncig ntawm 2000 degrees Celsius, yog li ua tau raws li qhov yuav tsum tau ua ntawm smelting lossis cov tshuaj tiv thaiv. Hlau magnesium, txhuas, thiab sodium feem ntau yog tsim los ntawm molten ntsev electrolysis. Lub sijhawm no, cov khoom siv hluav taws xob anode ntawm lub xov tooj ntawm tes yog tag nrho cov graphite electrodes los yog txuas rau tus kheej ci electrodes (anode paste, qee zaum ua ntej ci anode). Qhov kub ntawm molten ntsev electrolysis feem ntau yog qis dua 1000 degrees Celsius. Cov khoom siv hluav taws xob anode siv hauv cov kua ntsev electrolysis hlwb rau kev tsim cov dej qab zib caustic (sodium hydroxide) thiab cov roj chlorine feem ntau yog graphitized anodes. Cov khoom siv hluav taws xob rau lub tshuab hluav taws xob lub taub hau ntawm lub qhov hluav taws xob tsis kam siv hauv kev tsim cov silicon carbide kuj siv graphitized electrodes. Ntxiv nrog rau cov hom phiaj saum toj no, cov khoom siv roj carbon thiab graphite tau dav siv los ua cov khoom siv hluav taws xob hauv kev lag luam kev lag luam xws li cov hlua khi thiab txhuam. Tsis tas li ntawd, lawv kuj tseem siv los ua cov pa roj carbon monoxide hauv cov roj teeb qhuav, arc lub teeb carbon rods rau kev tshawb nrhiav los yog arc teeb tiam, thiab anodes hauv mercury rectifiers.
Graphite conductive sib dhos
2,Siv raws li cov khoom siv refractory
Vim muaj peev xwm ntawm cov khoom siv roj carbon thiab graphite tuaj yeem tiv taus qhov kub thiab txias thiab muaj zog tiv thaiv corrosion, muaj ntau yam metallurgical furnace linings tuaj yeem tsim nrog carbon blocks, xws li hauv qab, hearth, thiab plab hlau smelting furnaces, hauv ob sab phlu ntawm ferroalloy furnaces thiab calcium carbide furnaces, thiab hauv qab thiab sab ntawm txhuas electrolytic hlwb. Ntau cov crucibles siv rau smelting precious thiab tsis tshua muaj hlau, nrog rau graphitized crucibles siv rau melting quartz iav, kuj yog tsim los ntawm graphitized billets. Cov khoom siv carbon thiab graphite siv los ua cov ntaub ntawv refractory feem ntau yuav tsum tsis txhob siv rau hauv oxidizing cua. Vim tias carbon lossis graphite sai sai ablates nyob rau hauv qhov kub thiab txias nyob rau hauv ib qho chaw oxidizing.
Lub tshuab nqus tsev vacuum Cheebtsam
3,Siv los ua cov khoom siv corrosion-resistant
Graphitized electrodes impregnated nrog cov organic lossis inorganic resins muaj cov yam ntxwv ntawm kev tiv thaiv corrosion, zoo thermal conductivity, thiab tsis tshua muaj permeability. Hom impregnated graphite no tseem hu ua impermeable graphite. Nws yog dav siv nyob rau hauv kev tsim ntawm ntau yam kub exchangers, tshuaj tiv thaiv tank, condensers, combustion yees, nqus yees, txias, cua sov, lim, twj, thiab lwm yam khoom siv. Nws yog dav siv nyob rau hauv industrial sectors xws li roj av refining, petrochemical, hydrometallurgy, acid thiab alkali ntau lawm, hluavtaws fibers, papermaking, thiab yuav txuag tau ntau ntawm cov ntaub ntawv hlau xws li stainless hlau. Kev tsim cov graphite impermeable tau dhau los ua ib ceg tseem ceeb ntawm kev lag luam carbon.
Graphite trough nkoj
4,Siv los ua cov khoom hnav-resistant thiab lubricating
Cov ntaub ntawv carbon thiab graphite tsis tsuas yog muaj tshuaj lom neeg ruaj khov, tab sis kuj muaj cov khoom zoo lubrication. Nws yog feem ntau tsis tuaj yeem txhim kho qhov hnav tsis kam ntawm zawv zawg cov khoom siv cov roj lubricating nyob rau hauv high-speed, high-temperature, thiab high-pressure tej yam kev mob. Graphite hnav-resistant cov ntaub ntawv tuaj yeem ua haujlwm yam tsis muaj roj lubricating hauv cov xov xwm corrosive ntawm qhov kub ntawm -200 txog 2000 degrees Celsius thiab ntawm qhov nrawm nrawm (txog 100 meters / thib ob). Yog li ntawd, ntau lub tshuab compressors thiab lub twj tso kua mis uas thauj corrosive media dav siv piston rings, sealing rings, thiab bearings ua los ntawm graphite cov ntaub ntawv. Lawv tsis tas yuav ntxiv cov roj nplua nyeem thaum ua haujlwm. Cov khoom hnav-tiv taus no yog tsim los ntawm impregnating cov pa roj carbon zoo tib yam lossis graphite cov ntaub ntawv nrog cov organic resin lossis cov ntaub ntawv hlau ua kua. Graphite emulsion kuj yog cov roj nplua nyeem zoo rau ntau cov hlau ua haujlwm (xws li kos duab hlau thiab raj raj).
Graphite sealing nplhaib
5,Raws li ib tug high-temperature metallurgical thiab ultrapure khoom
Cov khoom siv hauv kev tsim khoom, xws li siv lead ua kev loj hlob crucibles, lub regional refining ntim, brackets, fixtures, induction heaters, thiab lwm yam, yog tag nrho cov txheej txheem los ntawm high-purity graphite cov ntaub ntawv. Graphite rwb thaiv tsev boards thiab hauv paus siv hauv lub tshuab nqus tsev smelting, nrog rau cov khoom xws li kub-kub tiv taus cua sov raj, pas nrig, daim hlau, thiab daim phiaj, kuj yog ua los ntawm cov khoom siv graphite. saib ntxiv ntawm www.fumetal.com
Post lub sij hawm: Sep-24-2023