Siv cov kos duab: cov lus qhia ib qib zuj zus rau kev ntxuav cov kab graphite hluav taws xob

Graphite cov cuab yeej siv nyob rau hauv ntau cov txheej txheem muaj, feem ntau tsis tshua muaj nyob rau hauv cov khoom siv hluav taws xob ua hluav taws xob (EAF) rau ntau cov ntaub ntawv elecors. Qhov xwm txheej ntawm lubkhoom siv hluav taws xobnto cuam tshuam ncaj qha cuam tshuam kev ua tau zoo, kev ua tau zoo, thiab ntev. Paug tsis raugkhoom siv hluav taws xobtuaj yeem ua rau nce ntxivkev noj, yuam kev ua yuam kev, thiab txawm tias kev puas tsuaj lojkev txhaumCov. Cov lus qhia no muab kev kawm ntaukev qhiaYuav ua li cas kom zoohuvthiab tswj kojGraph kaw electrodeCov chaw, kos duab los ntawm kev pom kev pom ntawm lub Hoobkas. Txawm hais tias koj yog eaf tus neeg teb xov tooj zoo li Marlpson, txhawj xeeb txog kev ua tau zoo thiab nqi-efficiency, lossis atus kws ua txuj cinpaj kom meejElectrochemicalKev ntsuas, nkag siab cov txheej txheem no yog qhov tseem ceeb rau kev ua tau zoo. Wbkuaj xyuasvim li cashuv khoom siv hluav taws xobteeb meem thiab yuav ua li cas kom ua tiav nws.

1. Vim li cas kev huv huv graphite hluav taws xob deg loj heev rau kev ua tau zoo?

Kev ua yeeb yam ntawm aGraph kaw electrodeyog intrinsically txuas rau nws qhov chaw nres tsheb. Nyob rau hauv cov ntawv thov kub siab zoo li hluav taws arc rauv, ahuvNto ensures kev coj ua hluav taws xob zoo. Cov tshuaj lom ua rau cov tshuaj insulators, kev tiv thaiv hluav taws xob ntxiv. Qhov no ua rau lub kaw lus kom kos lub zog ntau dua kom ua tiav tib lub zog me me, ua rau muaj zog duakev nojThiab txo kom tsawg - kev txhawj xeeb tseem ceeb rau cov neeg ua haujlwm. Tsis tas li ntawd, tsis ncaj ncees tam sim no faib tawm los ntawm kev fouling saum npoo av tuaj yeem tsim cov zos kub nyob hauv zos, nce kev ntxhov siab hauv cua sov thiab kev pheej hmoo ntawmkev txhaumlossis hnav ua ntej.

Tshaj EAF, hauvElectrochemicalCov ntawv thov, tusNto ntawm electrodeyog qhov kev txiav txim tshwm sim - nws yog qhov tseem ceebkev sib tshuamnruab nrab ntawmkhoom siv hluav taws xobcov khoom siv thiab covElectrolyteCov. Cov khoom paug tuaj yeem thaiv cov chaw ua haujlwm, hloov cov kev tiv thaiv kev tsis zoo, lossis ua kom pom sab nraud tsis zoo. Qhov no ncaj ncaj cuam tshuam qhov tseeb thiab rov ua dua tshiab ntawm kev ntsuas. Piv txwv li, nyob rau hauv voltammetry, ib qho qias neegUa Haujlwm Electrodento tuaj yeem ua rau distortedlub ncov roobCov duab, hloov pauvlub ncov roobmuaj peev xwm, thiab txocim homkev siv, ua rau nws nyuaj rau kev txiav txim siab txheeb xyuaskev xav ntsoovlossis kawm cov tshuaj tiv thaiv kev sib cav. Ibhuv khoom siv hluav taws xobNto yog qhov tseem ceeb rau kev tau txais kev txhim khu kev qhaElectrochemicalcov ntaub ntawv. Tswj lub pristinekhoom siv hluav taws xobNto kom ntseeg tau tias ntsuasElectrochemicalTeb tiag tiag hais txog qhov txheej txheem hauv kev tshawb nrhiav.

Kev ncaj ncees ntawm cov ntsiab lus sib txuas, tshwj xeebtxoj xovntu uasob electrodesKoom nrog ntawm lub txiv mis, kuj yog qhov tseem ceeb. Cov tsis huv xws li hmoov av lossis roj hauv lubtxoj xovtuaj yeem cuam tshuam tam sim no thiab ua rau overheating ntawm kev sib koom tes. Qhov no yog ib qho kev ua tsis tiav, feem ntau ua rauloosreeting, nce hluav taws xob tsis kam, lossis txawm tias txawmkev txhaumCov. Ua kom ob qho tib si lub cevnplaimthiab kev sib txuastxoj xovthaj chaw muaj suab nrovhuvyog qhov tseem ceeb rau cov qauv thiab hluav taws xob kev vam meej ntawm tag nrhokhoom siv hluav taws xobkem, tshwj xeeb tshaj yog thaum ua rau nrog cov hluav taws xob loj-uas xav tau cov siabtorqueThaum sib dhos ua ke.

2. Dab tsi cov paug ntawm cov chaw teeb hluav taws xob hluav taws xob rau hluav taws xob?

Npaimkhoom siv hluav taws xobCov chaw tuaj yeem dhau los ntawm ntau theem - thaum lub sij hawm cia, tuav, thiab kev ua haujlwm. Nkag siab txog cov kev ua txhaum ntau pab xaiv cov hau kev tu kom huv. Ib qhov chaw loj yogRoj thiab DejCov seem, feem ntau pauv los ntawm cov khoom siv tuav lossis cov neeg ua haujlwm txhais tes. Plua plav thiab cov teeb meem los ntawm qhov chaw cia khoom los yog cov nroj tsuag muaj peev xwm yooj yim nyob rau ntawm lubnplaim, tshwj xeeb tshaj yog nyob rau hauv cov qauv sib dhos ntawm qee hom graphite. Cov no yuav zoo li me, tab sis txawm tias txheej nyias nyias tuaj yeem cuam tshuam kev ua tau zoo heev.

Thaum lub sijhawm ua haujlwm, tshwj xeeb hauv EAFs,Graphite electrodesyog nthuav tawm cov xwm txheej hnyav. Slag txaws, nws yog xim hlautso nyiajhais, thiab oxidized cov khoom tuaj yeem ua raws li lubkhoom siv hluav taws xob nplaimCov. Cov txheej txheem-hais ntsig yog cov kab ke feem ntau nyuaj rau tshem tawm thiab tuaj yeem hloov qhovElectrode'sHluav Taws Xob thiab Cov Khoom Cua Sov. HauvElectrochemicalCov chaw teeb tsa, cov khoom tsis huv tuaj yeem pib los ntawm covElectrolytenws tus kheej (impurities, cov khoom lag luam), sivkhoom siv hluav taws xobtakeage, lossis adsorption ntawm molecules los ntawm tus piv txwv Matrix mus rau hauvQhov Chaw Sab NraudCov. Cov adsorbed tsiaj tuaj yeem passivate lubkhoom siv hluav taws xob, tabkaum hloov hluav taws xob hloov.

Nws tseem yog ib qho tseem ceeb kom txiav txim siab cov seem los ntawm kev tu tu yav dhau los lossis kev tsim khoom. Tsis raug cai tua cov tshuaj tiv thaiv tu lossis cov ntaub ntawv uas muaj cov duab (zoo li alumina lossislub hlawvMuab cov siv hauvElectrochemical khoom siv hluav taws xobKev npaj) tau lawv tus kheej ua raws li paug. Txawm tias cov nplaum ntawm kev tiv thaivdaim khab xevsiv raukhoom siv hluav taws xobXov tau tawm ntawm cov nplaum uas tsis muaj yog tias tsis muab tshem tawm kom zoo. Yog li ntawd, ib qho kev tu huv sikev uaYuav tsum muaj tus account kom tshem tawm tsis yog sab nraud av tab sis kuj muaj cov peev xwm tshwm sim los ntawm kev ntxuav cov txheej txheem nws tus kheej. Peb yuav tsumxyuas sebCov peev txheej ntawm fouling los xaiv qhov zoo tshaj plaws tu lub tswv yim.

3. Cov cuab yeej tseem ceeb thiab cov ntaub ntawv rau kev tu hluav taws xob ua tau zoo?

Muaj cov cuab yeej yog thiab cov ntaub ntawv ntawm tes ua rau cov txheej txheem tu huv si thiab muaj txiaj ntsig zoo dua. Cov khoom tshwj xeeb uas xav tau yuav txawv me ntsis nyob ntawmkhoom siv hluav taws xobNtaus thiab daim ntawv thov (EAF vs.Electrochemical kem hauv qhov taub), tab sis cov khoom siv yooj yim yuav tsum muaj:

• Kev Nyab Xeeb Cov iav:Yeej ib txwm muaj kev nyab xeeb ua ntej. Qhov no suav nrog hnab looj tes uas tsim nyog (piv txwv li, nitrile lossis neoprene kom tiv thaiv cov kuab tshuaj) thiab tsom iav lossis tsom teeb tawm tsam kev sib cais thiab cov pa tawm.
• Txhuam txhuam:Mos-bristled txhuam (zoo li nylon) feem ntau nyiam rau kev tu ib txwm kom tsis txhob khawb qhovGraph kaw electrode nplaimCov. Ibtxoj xov tooj lub zuag(nyiam dua tooj dag, softer tshajhlautej zaum yuav sivceev fajTxog kev tshem tawm cov khoom siv tawv ntoo heev ntawm cov hluav taws xob muaj kev lag luam, tab sis yeej tsis ntawm qhov muag heevElectrochemicalCov electrodes. Ib qhotxoj xovKev txhuam tu hniav kuj pom zoo.
• Ntaub:Lint-dawb so lossisdaim ntaub(zoo li microfiber qhov tseem ceeb rau cov ntaub so so yam tsis muaj qhov chaw tawm hauv qab. Cov ntawv xov tooj ntawm cov ntawv yuav tsum zam.
• Cov kuab tshuaj:Qhov kev xaiv ntawmsiabnyob ntawm cov khoom paug.
  • Isopropyl cawv (IPA)lossisAcetoneyog cov kev xaiv ntau yam rau tshem tawm cov roj av,Roj thiab DejCov. Txhua zaus kos rau kev sib raug zoo nrog cov lus tshwj xeebGraph kaw electrodeQib thiab Downstream daim ntawv thov (tshwj xeeb tshaj yog nyob rau hauv rhiabElectrochemical sim sebua haujlwm).
  • Deionized (DI) dejlossisdej distilledyog qhov tseem ceeb rau yaug, tshwj xeeb hauvElectrochemicalCov ntawv thov, kom tsis txhob qhia cov kuab paug ionic.
• Compressed cua:Ib qho chaw huv huv, qhuavcompressed cuayog invaluable rau lub tshuab tawg kom txav plua plav thiab cov khib nyiab, thiab rau kom qhuavkhoom siv hluav taws xobTom qab ntxuav. Xyuas kom cov pa hluav taws yog cov roj dawb.
• Cov ntaub ntawv polishing (rau cov hluav taws xob hauv tshuab hluav taws xob):Rau Kev NpajElectrochemicalCov khoom siv hluav taws xob, ntau qib kev sib tham yog xav tau, xws li:
  • Alumina slurries (piv txwv li, 1.0μm, 0.3μm0.05μm)
  • Lub hlawvpastes / tshuaj tsuag (ntau yam zoo sib xws ntawm qhov ntau thiab tsawg ntawm cov me me)
  • Polishing Cov Cim (Emery daim ntaubfeem ntau yog ntxhib, tshwj xeeb polishing daim ntaub yog siv)
• Ntim:Huv si beakers lossis cov tais kom tuav cov kuab tshuaj thaum ntxuav,lub ultrasonicTu.

Ntawm no yog lub rooj sai sai:

Xaiv cov cuab yeej zoo yog thawj kauj ruam ntawm kev ua kom zooGraph kaw electrode.

4. Cov lus qhia-dhau los: Yuav ua li cas nyab xeeb kom nyab xeeb thiab huv graphite elecitor?

NtxuavGraphite electrodes, txawm tias cov loj loj rau cov chaw ua kom loj lossis cov me me rau cov lab, xav tau ib txoj hauv kev. Ntawm no yog ib qho dav davkev ua, uas koj tuaj yeem hloov kho raws li lubkhoom siv hluav taws xobQhov loj me thiab cov qib tsis huv:

1. Kev tshuaj xyuas thawj zaug & kev nyab xeeb:Tso rau ntawm koj tsom iav kev nyab xeeb thiab hnab looj tes.Ua tib zoosoj ntsuam lubkhoom siv hluav taws xobrau qhov pomua puas, kab nrib pleb, lossis paug paug. Khij covtxoj xovthaj chaw tshwj xeeb.
2. Kev Tu Qhuav:Siv cov tshuaj ntxuav kom huv, roj dawbcompressed cuaTxhawm rau tshuab tawm ntawm cov hmoov av xoob thiab qhov teeb meem los ntawm tag nrhonplaim, suav nrog cov xov. Ib qho muag muag muag tuaj yeem pab disoldodge maj mam ua zoo li cov lus qhia. Ua haujlwm hauv qhov chaw muaj cua zoo.
3. Hnyav so (yog tias xav tau):Yog muaj roj residues (Roj thiab Dej) yog tam sim no, moisten ib lint-dawbdaim ntaubnrog ib qho tsim nyogsiab(zoo li isopropyl cawv). Maj mam so cov chaw tsis huv. Tsis txhob tsau lubkhoom siv hluav taws xob, tshwj xeeb tshaj yog cov hom ntxeem tau, tshwj tsis yog txhob txwm ua ib qho lojntxuavCov. Siv dej los ntxuav cov chaw ntxhua khaub ncaws rau cov av av. Rau cov xov, siv cov xov dalicated txhuam los yog daim ntaub qhwv ib ncig ntawm cov cuab yeej rauhuvlub zawj.
4. Cov nyiaj them tawv me (stubborn (muaj electrodes):Rau cov roj fouled muaj hluav taws xob (piv txwv li, EAFkhoom siv hluav taws xobnrog slag), kev tu neeg txhua yam yuav tsim nyogua ntejNtxuav. Qhov no tuaj yeem koom nrogceev fajscraping nrog cov cuab yeej tsis yog xim hlau lossis maj mam siv ntawm cov tooj dajtxoj xov tooj lub zuag. Ceev fajyog xav kom tsis txhob ua kom lubkhoom siv hluav taws xob nplaimCov. Kauj ruam no feem ntautsismuaj feem xyuamElectrochemicalCov electrodes.
5. Yaug:Yog tias cov kuab tshuaj tau siv, lossis rau kev ntxuav dav dav,ywgtuskhoom siv hluav taws xobkom huv si. RauElectrochemicalCov khoom siv hluav taws xob, siv cov DI dej siab los yog tib lub siab muaj kev coj dawb huvsiabsiv rau kev tu. Rau cov hluav taws xob muajerodes, nyob ntawm kev tu tus neeg sawv cev thiab cov txheej txheem xav tau, dejywgua raws los ntawm kev ua kom tiav cov dryness tej zaum tseem ceeb. Lub hom phiaj yog kom tshem tag nrho cov kab ntawm kev tu tus neeg sawv cev thiab tsis muaj kev txom nyem. Ntau cov tshuaj tua hluav taws yuav tsim nyog.
6. Drying:Cia covkhoom siv hluav taws xobrau saum huab cua qhuav hauv ib puag ncig huv. Koj tuaj yeem nrawm ziab sivcompressed cua(Xyuas kom nws huv). Maj mam cua sov (piv txwv li, hauv qhov cub hauv qab 100° C) Siv tau, tab sis zam dhau qhov kub dhau los uas yuavtus palossis thermally poob siab graphite. Tuskhoom siv hluav taws xobyuav tsum muaj tag nrho qhuav ua ntej cia ua ntej cia lossis siv, tshwj xeeb yog ua ntej sib txuas pob qij txha lossis raus hauv ibElectrolyteCov. Ib lub tshuab cua txias cua-yuav yog 30lub minrau ob peb teev, nyob ntawm qhov loj thiab porosity. Lub electrode yuav tsumtso cai kom qhuavkom huv si.
7. Kev tshuaj xyuas zaum kawg:Ib zaug qhuav, ua ib qho kev kuaj pom zaum kawg kom ntseeg tau tias yog qhovnplaimyog uniformlyhuvthiab pub dawb los ntawm cov seem lossisua puasCov. Khij cov xov dua.

Txoj kev ua haujlwm zoo no kom ntseeg tau tias lubGraph kaw electrodeyog kev ntxuav kom zoo thaum tsis tshua muaj kev pheej hmoo ntawmua puasCov. Nco ntsoov lis covkhoom siv hluav taws xobua tib zoo rau lub txheej txheem.

5. Dab tsi yog lub luag haujlwm ntawm Ultrasonic tu rau graphite electrodes?

Lub ultrasonicKev ntxuav tu muaj cov qauv tu kom zoo dua piv rau cov ntaub so lossis txhuam hniav yooj yim. Nws siv cov khoom siv suab nrov ntau zaus los tsim cavitation npuas tsis muaj kuasiabCov. Cov npuas no impro nyob ze ntawmkhoom siv hluav taws xobsaum npoo, tsim cov dav hlau me me, muaj zog thiab cov tawv nqaij uas muaj zog hloov pauv uas cuam tshuam cov khoom paug uas cuam tshuam los ntawm Phau Ntawv Maumoosnplaim, suav nrog cov hws hws thiab cov yam ntxwv zoo li xov. Xav txog nws ua microscopic scrubbing nkaus.

Txoj kev no yog siv tau tshwj xeeb rau kev tshem tawm cov tawv ncauj, cov teeb meem zoo, lossis cov kab mob tsis huv zoo li lub hauv paus ntawm atxoj xovCov. RauElectrochemicalCov hluav taws xob, ib qholub ultrasonic ntxuav(feem ntau 5-15lub min) nyob rau hauv ib qho tsim nyogsiab(zoo li di dej los yog isopropanol) tom qab kev sim ua ke lossis ntawm kev sim tuaj yeem txhim kho qhov chaw huv thiab ua kom muaj kev nquag, rov ua haujlwm dua, reproduciblekhoom siv hluav taws xob nplaimCov. Nws yog ib kauj ruam ib txwm muaj nyob rau hauv kev tu profocol nruj me ntsis rau pristineQhov Chaw Sab Nraud.

Txawm li cas los xij,lub ultrasonicKev ntxuav yuav tsum tau siv cov lus Yudiciously. Lub zog khaus yuav muaj peev xwm ua rau ntoua puaslossis yaig, tshwj xeeb yog cov soft graphite cov qib lossis lub sijhawm ntev. Nws yog qhov tseem ceeb rau:

• Xaivib qho tsim nyogsiabTau tshaj lub graphite thiab cov paug tsis huv.
• Tswj lub sijhawm (pib nrog lub sijhawm luv luv, piv txwv li,2 feebrau 5lub min, thiab nce tsuas yog tias tsim nyog).
• Xyuas kom covkhoom siv hluav taws xobtsis yog so hauv qab ntawm covlub ultrasonicDa dej (siv akhoom tuavlos yog ncua nws).
• Ywgkom huv si tom qablub ultrasonickauj ruam los tshem tawm cov khib nyiab dislorris thiab seemsiab.

Lub ultrasonicKev tu huv yog ib qho khoom muaj zog hauvkhoom siv hluav taws xobKev ntxuav cua, tab sis nws tsis yog ib txwm tsim nyog lossis tsim nyog. Txheeb xyuas hom kev sib kis thiab qhov rhiab ntawm covkhoom siv hluav taws xobua ntej ua haujlwm cov txheej txheem no. Rau ntau niaj hnub ntxuav cov haujlwm, phau ntawv txheej txheem piav ua ntej lawm.

6. Koj npaj cov hluav taws xob rau cov kev sim hauv tshuab hluav taws xob?

Npaj ibkhoom siv hluav taws xobrau ib qhoElectrochemical sim sebYuav tsum tau ceev faj kom zoo nkauj rau qhov kev huv huv thiab mob, raws li txawm trace impurities yuav cuam tshuam rau cov txiaj ntsig. Lub hom phiaj yog kom ua tiav tus du, replucible, thiab nquagnplaimCov. Tus kiagkev uanyob ntawm covkhoom siv hluav taws xobcov khoom siv (piv txwv li, khob iav carbon, graphite muab tshuaj txhuam, pyrolytic graphite) thiab tshwj xeebsim seb, tab sis feem ntau cuam tshuam nrog polishing, tu, thiab qee zaumElectrochemicalkev kho mob ua ntej.

Ib txwm muaj txheej txheem ua ntu zus rau cov khoom sivGraph kaw electrode(zoo li iav carbon) yuav zoo li no:

1. NEEG KHO TSHUAB POLISHING:Cov kauj ruam no ua rau tshem tawm cov kev paug los ntawm cov txheej txheem dhau los lossis tsim cov khaubncaws sab nraud thiab tsim cov tshiab, dunplaim.
   • Pib nrog coarser polishing xov (piv txwv li, 1μmalumina lossislub hlawvMuab tshuaj txhuam) ntawm ib polishingdaim ntaubCov. Polish nyob rau hauv ib daim duab-yim cov lus tsa suab rau 1-2 feeb.
   • YwgUa kom huv si nrog DI dej.
   • Txav mus rau cov ntaub pua puv ntoob (E.G., 0.3μm, ces 0.05μmalumina). Polish rau 1-2 feebnrog txhua qib.
   • YwgUa kom huv si nrog DI dej ntawm txhua kauj ruam.
2. Tu Ultrasonic:Tom qab polishing, tso lubkhoom siv hluav taws xobtaub nyob rau hauv ib tug beaker nrog Di dej (lossis qee zaum ethanol / isopropanol) thiab sonicate rau ob peblub min(piv txwv li, 5lub min) Txhawm rau tshem tawm cov khib nyiab polishing rau hauv cov ntawv me me.
3. Thaum kawg yaug: Ywgdav nrog cov dej siab purity. Qee cov txheej txheem yuav koom nrog qhov kawgywgnrog tusElectrolytesiv nyob rau hauvsim seb.
4. Electrochemical kev kho mob ua ntej (yeem):Nyob ntawm daim ntawv thov, tuskhoom siv hluav taws xobyuav xav tauElectrochemicalua kom los yog tu. Qhov no feem ntau cuam tshuam txog kev caij tsheb kauj vab muaj peev xwm nyob rau hauv ib qho ntau hauv kev txhawb nqaElectrolyteCov. Cov kauj ruam no tuaj yeem pab tshem tawm cov seem oxides lossis adsorbed hom thiab ruaj khov raukhoom siv hluav taws xob nplaimCov. Qhov tseeb muaj peev xwm thiabkev rov ua duatsis yog tshwj xeeb rau covkhoom siv hluav taws xobcov khoom siv thiab covElectrolyteSystem. Lub hom phiaj feem ntau yuav tsum ua tiav qhov ruaj khov, qis dua keeb kwm yav dhau los thiab zoo txhaisElectrochemical lub ncov roobTeb rau paub cov neeg sib deev redrox (xws li ferrocene lossis poov tshuaj ferrissya) raws li kev kuaj xyuaskhoom siv hluav taws xobkev ua si.
5. Kom qhuav (yog xav tau):Yog tuskhoom siv hluav taws xobTsis yog siv tam sim ntawd, nws yuav tsum tau qhuav kom zoo zoo (E.G., nrog maj mam kwj ntawm nitrogen lossis argon) thiab khaws cia kom zoo.

Qhov zoo tshaj ntawm lubElectrochemical kem hauv qhov taubteeb tsa, suav nrog cov ntaub ntawv siv thiab txee electrodes, thiab lub purity ntawm lubElectrolytethiab cov kuab tshuaj, yog ib qho tseem ceeb heev. Ib qho npaj txigUa Haujlwm ElectrodeYuav tsis zam cov ntaub ntawv zoo yog tias lwm yam khoom siv tau ua txhaum lossis tsis muaj kev sib raug zoo. Ua tiav ib qho ntse, zoo txhais tauElectrochemical lub ncov roobNrog rau cov kev xav tau muaj peev xwm feem ntau yog qhov taw qhia tseem ceeb ntawm ib qho npaj tau zookhoom siv hluav taws xobthiabkem hauv qhov taub.

7. Tiv thaiv kev puas tsuaj: Dab tsi yog cov kev ceev faj tseem ceeb thaum lub sijhawm tu?

Thaum kev tu yog qhov tseem ceeb, cov txuj ci tsis txaus yuav ua rau muaj kev phom sij ntau dua li qhov zoo. Graphite, txawm hais tias nws muaj kev kub siab ntau, tuaj yeem tawg thiab raug rau kev kho tshuabua puasCov. Ntawm no yog cov kev ceev faj tseem ceeb kom coj:

• Zam kev quab yuam ntau dhau:Tsis txhob siv lub zog ntau dhau thaum txhuam hniav, so, lossis tuav covkhoom siv hluav taws xobCov. Graphite tuaj yeem khawb lossis nti. Siv cov txhuam mos mos thiab cov ntaub qhwv dawb. Kom tsis txhob poob los sis cuam tshuam raukhoom siv hluav taws xob, raws li qhov no tuaj yeem ua rau kev puas tsuaj lojkev txhaum.
• Tiv thaiv cov xov:Tustxoj xovntu yog qhov tseem ceeb rau kev txuas thiab hloov chaw tam sim no tab sis kuj tseem yuav yooj yim.
  • YeejhuvXov kom zoo zoo, ua kom tsis muaj cov khib nyiab tseem.
  • Siv cov kaus mom tiv thaiv lossisdaim khab xevtshaj xov thaum muaj kev tu lub cev loj lossis lub sijhawm cia / thauj mus losTiv thaiv cov electrodeXov los ntawmua puas.
  • Thaum sib txuasob electrodes, Ua kom cov xov ncaj tau raws li ib qho ua kom raug ua ntej zawm. Siv cov kev pom zootorqueKev tshwj xeeb - Kev ntxhov siab tuaj yeem ntxhov siabtxoj xovthiab ua raukev txhaumTom qab ntawd, thaum under-zawm tuaj yeem ua rauloosreetingthiab overheating. Siv ib qho tsim nyogkhoom tuavLos yog clamp thaum sib dhos / Disassembly. Zam kev sivhlauCov cuab yeej ncaj qha rau ntawm cov graphite yog ua tau, lossis siv lawv nrog kev saib xyuas heev.
• Tshuaj sib xyaw ua ke:Xyuas kom meej cov kuab tshuaj los yog tu cov neeg sawv cev siv tau sib xws nrog qib tshwj xeebGraph kaw electrodeThiab yuav tsis tawm cov teeb meem tsis txaus ntseeg rau cov ntawv thov. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov qib siab-purity graphite lossisElectrochemicalCov ntawv thov uas txawm muaj cov tshuaj paug tsis huv. Yeejywgkom huv si.
• Thermal poob siab:Zam kev hloov kom sov. Tsis txhob siv lub kubkhoom siv hluav taws xobthiab txawm nws nyob hauv kev tu ua kua, lossis cua sov ntubkhoom siv hluav taws xobnrawm dhau. Zuj zus ntawm qhov kub hloov yog qhov tseem ceeb los tiv thaiv kev ntxhov siab thermal thiab tawg (kev txhaum). Yog tias koj xav tauciibkhoom siv hluav taws xobQhuav, siv qhov kub ntxhov (piv txwv li, <100-120° C) thiab tso cai rau maj mam cua cua cua sov thiab cua txias.
• Cov Ntawv Ceev Toom Cov Ntawv Luam Ntawv:Raws li tau hais ua ntej, txwv lub sijhawm thiab siv ntawmlub ultrasonickev ntxuav kom tsis txhob pitting los yog eroding lubkhoom siv hluav taws xob nplaim.

Los ntawm adhering rau cov kev ceev faj no, koj tuaj yeem ua tau zoohuvnej liGraphite electrodesYog tsis muaj kev sib cuam tshuam lawv cov qauv kev ncaj ncees lossis kev ua tau zoo. Kev Tiv Thaivua puasTsuas yog ib qho tseem ceeb li tshem tawm cov dej paug.

8. Yuav tshuaj ntsuam xyuas thiab txheeb xyuas cov electrode kev nyiam huv si tom qab ntxuav?

Tom qab tu, ua li cas koj thiaj paub yog tias tuskhoom siv hluav taws xobyog tiaghuvtxaus? Kev txheeb xyuas yog theem tseem ceeb, tshwj xeeb hauv cov ntawv thov tseem ceeb. Cov hau kev ntau los ntawm cov kev pom yooj yim pom rau cov kev tshuaj xyuas sab nraud ntau dua.

Rau kev lag luam industrial electrodes (zoo li EAF Electrodes), kev soj ntsuam kom meej yog thawj txoj hauv kev. Saib rau:

• Uniform tsos:TusnplaimYuav tsum saib cov uniformly ntxuav, tsis muaj thaj ua rau thaj ntawm discoloration, cov chaw seem, lossis cov kab mob uas pom tau zoo li cov roj av lossis plua plav.
• Xov xwm mob:Ua tib zoo mloog rautxoj xovgrooves thiab ntsej muag. Lawv yuav tsum tsis pub muaj khib nyiab, roj, thiabua puas.
• Siv sijhawm so:Maj mam so ib thaj chaw me me ntawm kev ntxuav, qhuavnplaimnrog huv, dawb, lint-dawbdaim ntaubCov. Daim ntaub yuav tsum nyob twj ywm, qhia tsis muaj cov xoob xoob yog hloov chaw.

RauElectrochemicalCov hluav taws xob, qhov chaw qhov chaw qhov chaw uas muaj qhov tshwm sim ntau dua:

• Pom kev kuaj xyuas (me me):Kuaj xyuas cov polishednplaimRaws li kev magicification tuaj yeem qhia tau khawb, pits, lossis cov khoom siv polishing.
• Electrochemical Testing:Khiav ib ncig vollic voltamogram (CV) hauv tus qauvElectrolyteKev daws teeb meem tau coj zoo redox zoo (piv txwv li, 1 hli poov tshuaj ferrissionanide hauv 0.1 m Khwv) yog cov cuab yeej kuaj mob. Ib tug kom huv huv thiab ua haujlwmkhoom siv hluav taws xobyuav tsum tau ua:
  • Ib qho keeb kwm me me tam sim no.
  • Zoo-txhais cov oxidation thiab txolub ncov roobcov duab.
  • Kev cia siablub ncov roobKev sib cais (δep), uas yog theoretically ze rau 59 / n MV ntawm chav tsev kub rau cov txheej txheem n-hluav taws xob rov qab. Kev sib txawv feem ntau qhia tau ib qho kev phem lossis tsis huvnplaim.
  • Cov neeg soj ntsuam uas rov ua dua tshiab thaum rov caij tsheb kauj vab.
• Hu rau ANGGLE ntsuas:Txoj kev ua si dej los yogElectrolytehlaws dai (lossis kis tawm) rau ntawmkhoom siv hluav taws xobNto tuaj yeem muabkev txawj xavRau hauv nws cov kev huv si thiab hydrophobicity / hydrophilicity, uas tuaj yeem nkag siab txog cov khoom paug deg.
• Nto Spectroscopic Txuj Ci (Qib Siab):Hauv kev tshawb fawb chaw, cov txuj ci zoo li xoo hluav taws xob yees duab spectroscopy (xps) lossis Raman spectroscopy yuav siv rauxyuas sebLub ntsiab lus muaj pes tsawg leeg thiab tshuaj lom neeg lub xeev ntawm covkhoom siv hluav taws xob nplaim, lees paus ntsiab lus uas tsis muaj cov kuab paug tshwj xeeb. Qib no ntawmntsuas kevnthuav dav feem ntau yog tshwj tseg rau R & D.

Kev kuaj xyuas tsis tu ncua thiab kev txheeb xyuas, tsim nyog rau daim ntawv thov, xyuas kom meej tias kev ntxuav tu yog ua tau zoo thiab qhov ntawdGraph kaw electrodeyog npaj rau kev ua tau zoo tshaj plaws. Qhov no pab tiv thaiv kom tiv thaiv kom tsis txhob muaj nuj nqis lossis tsis muaj tseebqho ntsuasCov txiaj ntsig tau.

9. Tswj kom huv si: yuav ua li cas rau lub khw muag khoom thiab lis cov graphite electrodes?

NtxuavGraphite electrodesyog qhov tseem ceeb, tab sis tiv thaiv kev tsis huv hauv thawj qhov chaw yog qhov zoo dua. Kev Cia Khoom Zoo Thiab Cov Txheej Txheem Ua Kas yog qhov tseem ceeb los tswj kev nyiam huv thiab tiv thaivua puasCov. Nov yog qee qhov kev coj ua zoo tshaj plaws:

• Huv si thiab qhuav cia:Khw cov hluav taws xob hauv ib qho chaw huv si, qhuav ntawm plua plav, ya raws, tshuaj ntsuam tshuaj lom neeg, thiab muaj kev cuam tshuam tshuaj lom neeg lub cev. Zam txhob khaws cia ncaj qha rau hauv pem teb. Siv cov qauv racks lossis pallets.
• Kev Tiv Thaiv Ntim:Khaws cov electrodes nyob rau hauv lawv thawj ntim khoom tiv thaiv ntev li ntev tau. Rau cov electrial industrodes, qhov no feem ntau suav nrog qhwv thiab Cushioning. Lub txiv mis (txuas rau pins) yuav tsum tau khaws cia kom zoo zoo, feem ntau hauv cov thawv mob siab.
• Xov Kev Tiv Thaiv:Ib txwm sivpovhwmlub kaus mom lossis plugs raukhoom siv hluav taws xobthiab tus txiv mis xov thaum cia thiab tuav. Qhov no tiv thaiv ob qho tib si tsis huv thiab lub cevua puasrau cov chaw tseem ceeb no. Xyuas kom lub kaus mom lawv tus kheej huv.Daim khab xevYuav siv tau los ua kev ntsuas ib ntus tab sis kom nws tsis tawm cov khoom seem.
• Tuav:
  • Ib txwm siv cov khoom siv huv (hlais, clamps,khoom tuavCov cuab yeej siv). Nco ntsoov nqa cov khoom nqa tsis qhia cov roj lossis av. Tshwj xeeb nqa cov plugs plugs uastswjrau hauvkhoom siv hluav taws xobQhov (socket) feem ntau siv rau cov hluav taws xob loj.
  • Txo qis tuav. Npaj txav kom tsis txhob muaj kev sib pauv tsis tsim nyog.
  • Cov neeg ua haujlwm tuav hluav taws xob yuav tsum hnav cov hnab looj tes huv kom tsis txhob hloov chawRoj thiab Dejlossis av los ntawm lawv txhais tes.
• Segregation:Yog tias ua tau, khaws cov hluav taws xob tshiab sib cais los ntawm kev siv los yog ib nrab haus kom tiv thaiv kev paug.
• Ib puag ncig tswj:Nyob rau hauv rhiab cov ntawv thov (zoo li cov rooj huv si rauElectrochemicalUa haujlwm lossis semiconductor ua), tswj txoj kev tswj hwm nruj ib puag ncig kom txo cov pa hluav taws xob.

Kev siv cov txheej txheem yooj yim tau tseem siv tau thiab cov txheej txheem fandling tuaj yeem txo qis kev ua kom muaj zog, ntev ntevkhoom siv hluav taws xoblub neej, xyuas kom meej kev ua tau zoo ib yam, thiab tiv thaiv tus nqikev txhaumlossis teeb meem kev ua haujlwm. Ua tus tswv tsev lub Hoobkas (zoo li kuv tus kheej, allen), peb qhia txog cov kev ua haujlwm sab hauv thiab pom zoo rau peb cov neeg siv khoom zoo li MarkSon, uas yog tus nqi ntseeg tau thiab ua haujlwm. Kev nqis peev hauvCov Khoom Siv Zoo Graphiteyog ib feem ntawm kab zauv; Kev tu kom zoo yog qhov tseem ceeb sib luag.

10. Tshaj li kev ntxuav tu: Tshawb nrhiav kev kho kom zoo rau cov hluav taws xob graphite?

Thaum meticulous tu tu cov khoom siv tau txais qhov chaw hauv aGraph kaw electrode, qee zaum cov ntawv thov xav tau cov yam ntxwv ua kev ua tau zoo. Qhov no tau coj mus rau kev txhim kho ntawm ntau yam kev kho kom zoo thiab hloov kho. Cov no mus dhau tsuas yog tu lubnplaimthiab tsom rau hloov nws lub hauv pausntiag tugprofile rau cov txiaj ntsig tshwj xeeb. Wbkuaj xyuasOb peb tus qauv:

• Anti-oxidation txheej:Graphitics caj cestus pantawm qhov kub siab nyob rau hauv lub xub ntiag ntawm huab cua, ua rau ncekev noj, tshwj xeeb tshaj yog nyob rau EAF lossis lwm cov txheej txheem ntsuas kub hnyav. Tso cov txheej txheem tshwj xeeb (piv txwv li, raws lisiliconcarbide, alumina, lossis lwm yam ntaub ntawv regractory) tuaj yeem tsim kev tiv thaiv kev tiv thaiv, txo qis oxidation poob thiab txuaskhoom siv hluav taws xoblub neej. Cov txheej txheej no yuav tsum tau ua tib zoo xaiv los xyuas kom lawv tsis muaj kev cuam tshuam hluav taws xob kev coj ua lossis paug cov yaj.
• Deg ua haujlwm (Electrochemical):RauElectrochemicalhnov thiab catalysis, tusGraph kaw electrode nplaimtuaj yeem hloov kho kom zoo dua los txhim kho nws cov kev ua tau zoo. Qhov no yuav koom nrog:
  • ElectrochemicalDepositionnws yog xim hlauNanoparticles (zoo li kub lossis platinum) los ua kom muaj tseeb ntawm cov tshuaj tiv thaiv tshwj xeeb.
  • Kev sib txuas lus ntawm cov lwg me me los yog polymers los tsim cov chaw xaiv cov khoom siv rau phiaj tshuaj anyalytes.
  • Plasma kev kho kom qhia cov pab pawg ua haujlwm (zoo li cov pa oxygen lossis cov pab pawg ntawm cov pa hluav taws xob) uas hloov cov hluav taws xob saum npoo thiab cuam tshuam nrog lubElectrolytelossis reactants.
    Cov kev hloov kho no ua kom zoo dua txhim kho cov rhiab, xaiv tau, lossis cov tshuaj tiv thaiv lossis cov tshuaj tiv thaiv rau qee yamElectrochemicalKev ntsuas, thawb cov ciaj ciam tshaj qhov yooj yim polishedGraph kaw electrodetuaj yeem ua tiav. Peb feem ntau pom atxawvrau ntau tailoredQhov Chaw Sab NraudHauv qib siabntsuas kevChemistry.
• Impregnation:Qee cov graphite cov graphnegated nrog cov ntaub ntawv zoo li cov resins los yog ci ua ntej cov porosity thiab ci ua ntej cov porosity thiab txhim kho lub zog lossis oxidation tsis kam. Thaum ib txwm muaj feem ntawm kev tsim khoom, cov kev kho mob tom qab uas muaj cov ntaub ntawv tshwj xeeb hauv qee cov ntaub ntawv ntawm Niche, lossis cov neeg tooj liab rau cov khoom hnav tsis kam) tseem kawm tau ntau yamGraphite electrodes.

Cov kev kho mob siab dhau los no tawm tsam cov kev daws tshwj xeeb kom haum rau cov kev sib tw tshwj xeeb. Thaum tus qauv ntxuav tsom rau tswj kev tswj hwm cov hauv paus kev ua tau zoo liUHP Graphite Hluav Taws XoblossisGraphite blocks, Kev hloov kho saum npoo muaj ib txoj hauv kev kom txhim kho lub peev xwm rau cov ntawv thov. Qhov no muab lus tseem ceebkev txawj xavmus rau hauv kev hloov tshiab tsis tu ncua nyob rau hauv graphite kev lag luam. Kev xaiv thiab kev thov ntawm cov kev kho no xav tau kev paub tseem ceeb kom ntseeg tau tias lawv xa cov txiaj ntsig kev xav tau yam tsis tau qhia cov teeb meem tshiab.

Tseem Ceeb Takeays Rau Electrode Tu thiab Kev Txij Nkawm:

• Kev nyiam huv yog qhov tseem ceeb:HuvGraph kaw electrode nplaimyog qhov tseem ceeb rau kev ua kom zoo rau hluav taws xob zoo, qiskev noj, kev ua tau zoo ib yam (hauv EAFs), thiab raugElectrochemicalKev Ntsuas (Ntselub ncov roob, txhim khu kev qhacim hom).
• Paub koj cov paug:Txheeb xyuas cov peev txheej ntawm fouling (Roj thiab Dej, hmoov av, cov txheej txheem seem) los xaiv txoj kev tu kom huv.
• Siv cov cuab yeej tsim nyog:Ua cov ntaub mos muag muag muag muag, cov ntaub qhwv cov ntaub so, uas tsim nyog cov kuab tshuaj (ipa, thiab cov iav kev nyab xeeb), thiab kev nyab xeeb. Zam kev ua phem ua phem tshwj tsis yog tsim nyog thiab ua kom zoo zoo.
• Ua raws li cov txheej txheem txheej txheem:Tshuaj xyuas, qhuavhuv (compressed cua),ntxuav(Cov kuab tshuaj So / yaug), qhuav huv si, thiab rov kuaj xyuas. Tiv thaiv cov xov.
• Txiav txim siab ultrasonic sparingly:Muaj txiaj ntsig rau kev tu kom huv tab sis siv nrog kev ceev faj kom tiv thaivua puasCov. Tswj lub sijhawm thiabywgzoo.
• Electrochemical preforch yog nruj:Yuav tsum muaj polishing (alumina /lub hlawv), Enllough rinsing, feem ntaulub ultrasonickev ntxuav, thiab qee zaumElectrochemicalkev ua kom ua kom tiav kev rov ua duanplaimCov. Saib xyuas nrog CVlub ncov roobtsom xam.
• Tiv thaiv kev puas tsuaj:Lis zoo, tiv thaiv xov, siv tautorque, zam kev poob siab, thiab tshuaj xyuas tshuaj sib xyaw. Kev tiv thaiv tawg yog qhov tseem ceeb.
• Txheeb xyuas kev nyiam huv:Siv kev kuaj pom, siv cov kev sim so, thiab rauElectrochemicalUa haujlwm, CV kuaj.
• Khw thiab coj kom zoo:Khaws cov tshuaj electrodes huv si, qhuav, tiv thaiv (tshwj xeeb tshaj yog cov khoom siv), thiab lis nrog cov khoom siv huv / hnab looj tes kom txo qis rov ua haujlwm dua.
• Kev kho siab muaj:Txheej thiab kev ua haujlwm tuaj yeem txhim kho cov khoom xws li oxidation tsis kam lossisElectrochemicalkev ua si rau cov kev xav tau tshwj xeeb.

Los ntawm kev siv cov lus qhia no, cov neeg siv ntawmGraphite electrodestuaj yeem ua kom lawv tau txais kev ua tau zoo tshaj plaws thiab kev ua tau zoo thiab cov nyiaj sib xyaw los ntawm cov teeb meem tseem ceeb, teeb meem kev ua haujlwm ntawm kev ua haujlwm thiab ua haujlwm ntau.