Graphite Electrodes ua haujlwm li cas hauv lub tshuab hluav taws xob ua hluav taws xob: fais fab niaj hnub steelmaking

Graphite electrodes yog unsung heroes ntawm niaj hnub steelmaking, ua si ib tug tseem ceeb hauv lubFais arc rauv (Eaftxheej txheem. Nkag Siab Li CasGraphite hluav ua haujlwm nrog lub tshuab hluav taws xobYog qhov tseem ceeb rau kev txaus siab rau lawv qhov tseem ceeb thiab xaiv cov khoom lag luam zoo rau cov khoom siv hlau tau ntau lawm. Kab lus no dhia sib sib zog nqus rau hauv txoj haujlwm, tsim khoom, thiab kev siv ntawmGraphite electrodes, piav qhia vim li cas lawv thiaj tsis tseem ceeb hauv meltingseemHlau Thiab Chaw Tsim KhoomHlau Thiab Lwm Cov HlauCov. Txawm koj yog tus tub ceev xwm ua lag luam zoo li Malompson, ibEaftus neeg teb xov tooj, lossis tsuas yog xav paub txog cov txheej txheem muaj, nyeem rau kom pom cov txheej txheem txaus nyiam thiab engineering qab no cov cheebtsam tseem ceeb no, thiab kawm paub xaiv qhov txhim khu kev qhaGraphation Chaw tsim tshuaj pausZoo li peb ntseeg tau zoo thiab ua tau zoo.

1. Dab tsi yog qhov teeb meem graphite siv rau?

Ntawm nws cov tub ntxhais, aGraph kaw electrodeyog cov kab ntawv cylindrical loj feem ntau ntawm cov kab mob ntawm cov pa roj carbon. Nws txoj haujlwm tseem ceeb yog ua raws li atus coj nkaujntawm hluav taws xob tsis pub dhau cov kev lag luam tshwj xeeblub tshuab ziab, feem ntau loab covFais arc rauv (Eaf) thiab covLadle rauv tawsCov. Xav txog nws yog tus loj heev, cov xaim hluav taws kub. Tus thawjGraphite electrode sivnyob ib ncig ntawm kev coj tus nqi lojHluav Taws Xob Hluav Taws Xoblos ntawm lub hwj chim rau cov ntaub ntawv sab hauvqho cub.

Qhov no loj hluav taws xobTam sim no hlalos ntawmGraph kaw electrodethiab tsim ib qho kub heevFais arc- Qhov tseem ceeb ib qho kev tswj hwm ntsia liaj qhov rooj ntawm xob laim - nruab nrab ntawm electrode taub thiab nws yog xim hlau them (feem ntauSeem Hlau Hlaulos yog txo cov hlau txo nqi ncaj qha)Sab hauv qhov cubCov. Lub khausThaum tshav kub kub tsimlos ntawm no arc, ncav rau qhov kub tshaj 3000 ° C (5400 ° F), yog dab tsimelts cov hlauCov. Yog li, tusgraphitation electrode feem ntau yog sivTxhawm rau hloov lub zog xav tau rauyajdown khoom cov khoom nyoos rau hauvMolten HlauCov. Lawv tseem tsis tau muaj nyob hauv cov txheej txheem zoo liFais arc rauve steelmaking, smelting ferroalloys hauv aSubmerged arc rauv, thiab refiningTus Hlau Nyob Hauv Tsev Teev Rauv.

A Graph kaw electrodetsis yog ib tug pas nrig yooj yim; Nws yog ib qho kev tsim tawm muaj zog tsim los ua kom muaj kev mob siab. Nws xav tauHigh Txhua Yam ZogTxhawm rau kom tsis txhob tawg thaum kov lossis ua haujlwm, zoo heevthermal conductivitylos tswj lub zog cua sov, thiab heevKev tiv thaiv qisTxhawm rau ua hluav taws xob ua tau zoo tsis muaj overheating nws tus kheej.Graphite hluav taws xob tau siv davVim tias teeb tsa kev sib xyaw ua ke no ntawm cov khoom lag luam, ua rau nws mus-rauKhoom Siv SivRau cov ntawv thov uas xav tau no. Tsis muaj lubGraph kaw electrode, niaj hnubEafTsuas yog tsis ua haujlwm.

2. Npaum li cas ua hluav taws xob arc rauv (EAF) khiav lag luam?

IbFais arc rauv (Eaf) yog muaj kev lag luam haibqho cubfeem ntau siv rau melting ferrousseemHlau los tsim cov tshiabhlauCov. Tsis zoo li cov ib txwm muajmoj tej tawg ua kom sovtxoj kev uas siv hlau ore, tusEafyog pob zeb ntawm theem nrabsteelmaking, tsom mus rau kev rov ua dua tshiab. Kev ua haujlwm yooj yim muaj ntau kauj ruam tseem ceeb. Ua ntej, tusqho cublub nkoj, ib txoj kab loj, rov ua dua tshiab ntawm lub plhaub hlau, yog them nrogSeem HlauCov. NoseemMuaj peev xwm ntau ntawm cov tsheb qub thiab cov khoom siv rau kev lag luam tawm. Qee zaum, txo cov hlau txo (dri) lossis npua hlau kuj tseem ntxiv ntxiv.

Ib zaug them, tusqho cubRu tsev, uas tuav covGraphite electrodes, yog viav vias mus rau hauv qhov chaw thiab txo qis. Haib transformers mov aHigh-voltage Hluav Taws Xob Tam Sim NorauGraphite electrodesCov. Raws li tusCov Hluav Taws Xobyog txo qis rau covSeem Hlau, ibFais arcstrikes ntawm cov lus qhia electrode thiab cov xim hlau tus nqi. NoArc ntawm graphite electrodesThiab tusseemTso tawm ntau yam ntawm lub zog, tsim kom muaj cua sov. TusThaum tshav kub kub tsimsai sai pibyajtusSeem Hlau HlauCov. Cov pa yog feem ntau txhaj kom ceev cov yaj thiab cov txheej txheem ua kom zoo.

Tag nrho cov txheej txheem nyob rau hauvFais arc rauvyog ua tib zoo tswj tau. Tustus neeg teb xov tooj yuav tsum tau kho qhov tam sim no thiab hluav taws xob sivtusGraphite electrodesZoo, tswj cov arc ntev thiab lub hwj chim tawm tswv yim. Raws li tusseem qaws, sib sau lub pas dej ntawmMolten SteelHauv qab ntawmqho cub, slag-thawj cov ntaub ntawv ntxiv. Cov ntaub ntawv no pab tshem tawm impurities los ntawmMolten HlauCov. Thaumhlaumus txog qhov ntsuas kub xav tau thiab muaj pes tsawg leeg, tusqho cubyog tilted (qaij rau ncuav) thiab covMolten Steelyog tapped rau hauv ankuajrau kev ua se ntxiv lossis nrum. TusEafmuaj cov khoom siv tau yooj yim thiab yog feem ntau suav tias yog ntau cov neeg nyiam ib puag ncig ntau dua li ib txwm muajsteelmakingtxoj kev vim nws tso siab rau siv rov ua dua tshiabseemCov. Tuscua sov ualos tswj cov voj voog uas tau them rov qab, melting, thiab tapping.

3. Vim li cas graphite electrodes tseem ceeb rau eAF steelmaking?

Graphite hluav taws xob yog qhov tseem ceebCheebtsam hauvEAF Steelmakingcov txheej txheem rau ob peb txoj hauv kev. Lawv lub luag haujlwm tseem ceeb yog Irreplaceable: lawv yog qhov nruab nrab los ntawm qhov tsim nyogHluav Taws Xob Hluav Taws Xobnkag mus rau hauv lubqho cubrauMelt SeemHlau. Tsis muaj lwm yam khoom siv tshwj xeeb ua kev sib xyaw ntawm cov khoom uas yuav tsum tau ua kom muaj qhov chaw hnyavSab hauv qhov cubThaum muaj txiaj ntsig zoo ua rau hluav taws xob muaj hluav taws xob loj.Cov hluav taws xob yog qhov tseem ceeb rau kev ua haujlwm hluav taws xob arc rauvntse.

TusEafcov txheej txheem tso siab rau tag nrho ntawm cov cua sov uas tsim los ntawmFais arc. Graphite electrodesmuaj cov kub siab heev thermal tsis kam thiab lub ntsej muag zoo heev (sublimates ib ncig 3650 ° C), tso cai rau lawv ua chaw ua haujlwm txuas ntxiv ntawm ultra-Kev Kub Siabtsim los ntawm arc tsis muaj melting lossis poob. Tsis tas li ntawd, Graphite boasps zoo heevHluav Taws Xob Kev Tshaj Tawm (Kev tiv thaiv qis), txo lub zog ua kom sov li cua sov hauv lubkhoom siv hluav taws xobnws tus kheej thiab maximizing lub zog xa mus rauyajCov. Qhov kev ua tau zoo no yog qhov tseem ceeb rau kev lag luam muaj txiaj ntsig ntawmEAF Steelmaking.

Ntxiv mus,Graphite hluav taws xob ua silub luag haujlwm tseem ceeb hauv Chemistry of theTxheej txheem stugmakingCov. Thaum feem ntau ua yeeb yam li atus coj nkauj, qee cov pa roj carbon los ntawm lubkhoom siv hluav taws xobtaub yog noj thiab tuaj yeem nkag mus rauMolten Steelda dej, pab txhawb rau cov ntsiab lus carbon zaum kawg ntawm lubhlau, uas feem ntau yuav tsum tau uahlaucaij. Lawv liHigh Txhua Yam Zogkom ntseeg tau lawv tuaj yeem tiv thaiv cov kev nyuab siab ntawm kev tswj hwm, kev teeb tsa, thiab cov kev mob ntshav siab nyob hauv kev ua haujlwmqho cub. Muab cov yam ntxwv no, Graphite hluav taws xob yog sivyuav luag txhua yam hauvEafthiabLadle rauv tawsCov ntawv thov thoob ntiaj teb. Tag nrhoFais arc rauve steelmakingkev voj voog nyob ntawm kev ua tau zoo ntawm cov noGraphite electrodes.

4. Li cas graphite hluav taws xob ua haujlwm nrog lub hluav taws xob arc rau cov khoom melt?

Khawv koob ntawmEaftshwm sim thaum twgGraphite hluav ua haujlwm nrog lub tshuab hluav taws xobCov. Cov txheej txheem pib thaum lub siabLub Hluav Taws Xob Tam Sim Noyog muab rau tusGraphite electrodesRaug tshem tawm saum tus nqi (feem ntauSeem Hlau) Hauvqho cubCov. Raws li cov electrodes raug txo qis, cov huab cua sib txawv ntawm cov lus qhia electrode thiab cov xim hlau txo qis. Ntawm ib qho ntsiab lus tshwj xeeb, lub zog hluav taws xob kov yeej cov insulating cov khoom ntawm huab cua, ua rau hluav taws xob dhia hla qhov sib txawv - qhov no yog qhovFais arc.

Nolub nkojyog qhov tseem ceeb ua ib qho txuas ntxiv mus ntxiv, muaj ntshav tawm ntawm ntshav. Nws ua raws li tus choj rau lubLub Hluav Taws Xob Tam Sim Nokom ntws los ntawmGraph kaw electroderauSeem Hlau(lossisMolten Steelda dej) thiab feem ntau ntawm cov electrodes lawv tus kheej hauv ibAc Fais Arc RauvCov. Cov tsis kam pom los ntawm qhov tam sim no thaum nws ntws los ntawm Arc Plasma tsim hluav taws kub tsis txaus ntseeg, mus txog qhov kub npau taws heev ntawm cov hlau. Qhov kev mob siab no, tsom kom sov saimelts cov khoom siv rawHauv qab no. Lub kaw lus tseem ceeb hloovHluav Taws Xob Hluav Taws Xobmus rau hauv cov hluav taws xob thermal meej pem qhov twg nws xav tau.

RauTsim ib lub arc thaum txoj kev hla tam sim noua tau zoo yuav tsum ua tib zoo tswj. Cov neeg ua haujlwm tswj hwmceev ceevthiab txoj hauj lwm ntawmGraphite electrodeskom muaj kev ruaj khov thiab muaj zog arc. Lub arc ntev yog qhov tseem ceeb; luv heev, thiab cov electrodes pheej hmoo tiv toj rau melt; Ntev dhau, thiab arc ua tsis tau thiab lub zog hloov chaw tsawg dua. TusCov Hluav Taws Xob Kev Coj UaQhov no loj tam sim no, thiab covThaum tshav kub kub tsimlos ntawmarc melts cov hlauCov. Seb nws yog aDC lossis AC Fais ARC, lub hauv paus tseem ceeb tseem zoo ib yam: tusGraph kaw electrodemuab lub zog, thiab covFais arcmuab cov cua sov uas tsim nyog rau melting hauv lubqho cub.

5. Dab tsi ua rau graphite cov khoom zoo rau cov hluav taws xob hluav taws xob?

Graphite sawv tawm raws li premierKhoom Siv SivRau cov electrodes nyob rau hauvFais arc rauvthiabLable FurnacesVim yog ib qho tshwj xeeb thiab muaj zog sib xyaw ua ke ntawm lub cev thiab tshuaj lom neeg. Tsis muaj lwm yam yooj yim muajKhoom Siv Hluav Taws Xobtuaj yeem sib phim nws cov kev ua tau zoo ntawm cov kev mob hnyav. Nws cov haum haum los ntawm ntau tus yam ntxwv tseem ceeb:

1. Kub-Kub Kuj:Graphite muaj ib qho ntawm cov ntsiab lus siab tshaj plaws ntawm cov khoom siv uas paub (nyob ib ncig ntawm 3650 ° C), lub ntsiab lus nws tsis yaj ntawm kev ua haujlwm kub ntawm ibEaf(uas tuaj yeem tshaj 3000 ° C hauv thaj chaw arc). Nws tseem khov thiab ua haujlwm nyob qhov twg ntau cov ntaub ntawv yuav vaporize lossis liquefy. Nws yog incrediblytiv taus cua sov.
2. Hluav Taws Xob Hluav Taws Xob Zoo:Graphite yog ib qho tshwj xeebtus coj nkaujntawm hluav taws xob, kev nthuav dav heevKev tiv thaiv qisCov. Qhov no tso cai rau ntau ntawmLub Hluav Taws Xob Tam Sim Nokom ntws los ntawmGraph kaw electrodeNrog kev ua haujlwm tsawg heev li tshav kub nyob rau hauv electrode nws tus kheej. Siabkev coj uatxhais tau tias muaj zog ntau dua ntawm arc rauyajtusseem.
3. Zoo tshaj thermal conductivity:Paradoxically, thaum tawm tsam melting, graphite kuj muajsiab siab thermal conductivityCov. Qhov no yuav pab cuam tshuam ua kom sov deb ntawm qhov chaw kub tshaj plaws (ARC txuas cheeb tsam), txo cov hauv zos overheating thiab thermal kev ntxhov siab, uas ua rau nws muaj kev ruaj khovSab hauv qhov cub.
4. Thermal poob siab:Cov txheej txheem cuam tshuam cov kev hloov kom sov sai. Graphite tuaj yeem tiv thaiv cov kev hloov pauv huab cua sov uas tsis muaj kev tawg lossis spalling, ib qho cuab yeej tseem ceeb rau kev ua haujlwm cyclic ntawm ib qhoEaf.
5. Tshuaj lom neeg inertness:Ntawm kev ua haujlwm kub, graphite yog qhov tseem ceeb ntawm kev txo cov cua uas muaj nyob hauv ib qhoEaf, tab sis nws tau maj mam oxidize (hlawv) nyob rau hauv muaj huab cua lossis oxygen, uas yog thawj hom kev siv.
6. Machinability:Txawm hais tias nws lub zog, graphite tuaj yeem raug kho kom haum rau hauv qhov loj cylindricrical daim duab yuav tsum muaj rauGraphite electrodes, suav nrog cov sab threaded yuav tsum tau koom nrog ntu ua ke.
7. Cov ntsiab lus tshauv tsawg: Zoo-Zoo Graphite Ectrodesyog tsim los ntawm kev xaiv ua tib zoo xaivCov Khoom Siv RawnyiamRoj av cokethiabKoob coke, ua tiav kom muaj impurity heev (tshauv) cov ntsiab lus. Qhov no txwv tsis pub muaj kev sib kis ntawm covMolten SteelCov. Tusduabcov txheej txheem, koom nrog cua sov kom kub siab heev (nyob ib ncig ntawm 3000 ° C), ntxiv rau cov carbon thiab tsim tawm cov qauv siv crystalline zookev coj uathiab lub zog.

Qhov kev sib xyaw ua ke no ua graphite qhov tsis tseem ceebCov Khoom Siv Uarau ib puag ncig xav tau ntawm ibFais arc rauv.

6. Nkag siab ntau graphite electrode Qib: hp vs. UHP

Graphite electrodestsis yog txhua tus tsim sib npaug. Lawv feem ntau tau cais rau hauv cov qib sib txawv raws li lawv cov peev txheej thiab cov ntaub ntawv npaj siab (RP), thiab lub zog HP), thiab ultra-siab zog (UHP). Lub ntsiab txawv txawv dag nyob rau hauv qhov zoo ntawm lubCov khoom siv rawsiv, kev tsim khoom tsim, thiab lub zog ntawm lub cev, uas dictate lubceev ceevLawv tuaj yeem coj.

• Muaj Zog Muaj Zog (HP) Graphite Electrodes:Cov no yog ib kauj ruam los ntawm RP electrodes.HP Graphite Ectrodesyog tsim los ntawm ntau duaRoj av cokethiab qee zaum suav nrog ib feem ntawmKoob cokeCov. Lawv tau txais cov txheej txheem tsim kev tsim qauv nyuaj, ua kom zoo duaHluav Taws Xob Kev Tshaj Tawm, Lub zog txhua yam siab dua, thiab txhim kho cov cua sov kev poob siab tsis kam piv rau RP qib.HP Graphite Ectrodesyog tsim nyog rauFais arc rauvkev ua haujlwm ntawm qib muaj hwj huam thiabLable FurnacesCov. Lawv muab qhov sib npaug ntawm kev ua tau zoo thiab raug nqi rau cov ntawv thov tsawg dua. Koj tuaj yeem nrhiav cov kev xaiv txhim khu kev qha zoo li pebHigh-fais fab graphite electrode.
• Ultra-Siab Fais Fab (UHP) Graphite Electrodes:Raws li lub npe qhia,UHP Graphite Hluav Taws Xobyog tsim rau cov ntawv thov xav tau tshaj plaws hauv cov khoom siv siabFais arc rauvCov. Lawv yog tsim tau siv tus nqi-qibKoob cokeRaws li tus thawjCov khoom siv raw. Koob cokemuaj lub ntsej muag zoo nkauj, rab koob zoo li cov qauv uas, tom qabduab, Qhov tshwm sim hauv cov electrodes nrog tshwj xeebTsawg Tshaj Hluav Taws Tiv Thaiv, zoo heev thermal kub tsis kam, thiabHigh Txhua Yam ZogCov. Qhov no tso caiUHP Graphite Hluav Taws Xoblos lis cov siab heevceev ceevtsis muaj cua sov ntau dhau lossis tawg. Kev sivUhpCov hluav taws xob ua kom muaj kev sib tw sai dua lub sijhawm thiab ntau dua kev tawm tsam hauv cov niaj hnub, muaj zogEafsCov. Peb liUltra-Siab Fais Fab Graphite Hluav Taws XobCov kev xaiv tau raws li cov hlua khi ua tiav.

Xaiv cov qib raug (HP graphite electrodelossisUhp) yog qhov tseem ceeb rau kev ua kom zooqho cubKev ua tau, minimizing electrode, thiab ua kom muaj kev nyab xeeb. Siv cov qib qis dua li yuav tsum muaj peev xwm ua rau cov electrode breakage thiab kev ua haujlwm qeeb, thaum siv qib siab dua yuav kim. Raws li aGraphation Chaw tsim tshuaj paus, peb pab cov neeg siv khoom xaiv cov qib siab rau lawv tshwj xeebqho cubthiab txheej txheem.

7. Yuav ua li cas graphation electrodes nruab thiab siv sab hauv rauv taws?

Txhim kho thiab sivGraphite electrodesHauv ibFais arc rauvyog txheej txheem xav tau precision thiab kev saib xyuas, tuav los ntawm kev kawmsteelworkers. Graphite electrodesFeem ntau tuaj hauv ntu, feem ntau ntau meters ntev. Vim tias ib ntu tsis ntev txaus kom mus txogseemKev them nqi thiab muaj kev noj ntau, ntau ntu yog koom nrog ua ke ua ke siv cov ntawv sau txuas ntxiv siv cov ntawv txuas ntxiv (txiv mis), kuj ua los ntawm graphite.

Cov txheej txheem feem ntau cuam tshuam:

1. Kev npaj:TshiabGraph kaw electrodeNtu thiab cov txiv mis yog ua tib zoo tshuaj xyuas rau txhua yam kev puas tsuaj thaum thauj lossis tuav. Xov tau ntxuav thiab tshawb xyuas.
2. Koom Tes Nrog:Lub txiv mis yog ntsia hlau rau hauv lub qhov (socket) ntawm ib qho hluav taws xob ntu. Tom qab ntawd, lwm ntu yog ua tib zoo rub (siv tshwj xeeb clamps kom tsis txhob muaj kev puas tsuaj) thiab ntsia hlau mus rau lub txiv mis tawm ntawm thawj ntu. Qhov no feem ntau ua tiav siv siv cov ciaj ntswj los ua kom muaj kev sib koom ua ke tas li tab sis tsis dhau kev ntxhov siab. Qhov kev koom tes no yuav tshwm sim thaum sawv ntsug ntawmqho cublossis ncaj qha rau saum tojqho cubnws tus kheej.
3. :Cov sib sau ua keGraph kaw electrodekem (uas tuaj yeem ntev heev thiab hnyav heev) yog Hoisted los ntawm lub crane thiab ua tib zoo txo ​​qis los ntawm kev qhib hauv lubqho cubru tsev. Nws tau txuas rau hauv electrode tes caj npab, uas muab ob qho tib si txhawb nqa thiab kev sib txuas hluav taws xob. Qhov no yog rov ua dua rau tag nrho peb cov hluav taws xob hauv ib txwm muajAc Fais Arc Rauvlossis ib qho hluav taws xob hauv ibDC Fais Arc Rauv. Cov Neeg Ua Haujlwm Luam GraphiteHluav taws xob me me me.
4. Kev ua haujlwm:Ib zaug ntsia, tusCov Hluav Taws Xobyog txo qis rau covSeem HlauCov. Tustus neeg teb xov tooj yuav tsum tau kho qhov tam sim no thiab hluav taws xob sivLub kaw lus zoo. Kev tswj lub tshuab tswj cov tshuab sib luag tau tswj hwm lub chaw hauv hluav taws xob, nce thiab txo qis lawv kom tswj tau qhov ntev ntawm lub sijhawmseem qawsdown thiab tusGraph kaw electrodenws tus kheej yog maj mam noj. Lub hom phiaj yog los tswj cov arc ruaj khov rau kev ua kom zoo. TusCov kev hloov pauv tau tam sim noyuav tsum tau hloov kho tas li.

Thoob plaws hauv cov txheej txheem, xyuas cov kev ua tau zoo thiab kev noj yog qhov tseem ceeb. Cov pob qij txha yuav tsum nyob ruaj khov, thiab cov tshuab thiab hluav taws xob txhawb covGraph kaw electrodeyuav tsum ua haujlwm kom raug. Tsim nyog tuav thiab kev teeb tsa yog qhov tseem ceeb heev los tiv thaiv kev ua tsis tiav thaum lub sijhawmqho cub.

8. Dab tsi tshwm sim thaum lub sij hawm lub voj voog melting hauv cov hluav taws xob tshuab hluav taws xob?

Lub voj voog melting hauv ib qhoFais arc rauv (Eaf) yog cov txheej txheem dynamic thiab khaus tsim los hloov cov khoomSeem Hlaurau hauv kuahlauCov. Nws pib tom qab lubqho cubtau raug them nrogseemCov. TusGraphite electrodesraug txo qis, thiab covFais arcyog pib.

Thaum pib, cov arcs ris los ntawm lub ntaisseemNyob rau sab saum toj. Qhov LojThaum tshav kub kub tsimlos ntawm arcs (tshaj li 3000 ° C) Pib melting lubSeem Hlauncaj qha rau hauv qab thiab ib ncig ntawm lub arc cheeb tsam. Raws li pas ntawmMolten Hlaudaim ntawv, lawv sau rau hauv qab ntawmqho cubCov. Cov arcs ces hloov tshav kub kom zoo dua rau qhov kev loj hlob no ntawmMolten SteelCov. Kom ceev tau melting thiab homogenize kub, oxygen yuav lanced rau hauvqho cub, reacting exotothermically nrog cov ntsiab lus xws li carbon, silicon, thiab hlau, tsim kom muaj cua sov ntxiv. Siv roj hlawv kuj tuaj yeem siv thaum ntxov hauv lub voj voog.

Raws li tusseem qaws, tusGraphite electrodesyog txuas ntxiv hloov kho kom huv los ntawm kev tswj hwm kom tswj tau lub arc thiab ua raws cov nqi them nqi. Lub hom phiaj yogMelt Seemraws li sai thiab muaj txiaj ntsig li sai tau. Thaum lub sij hawm theem no, cov neeg sawv cev ua yeeb yaj kiab (zoo li txiv qaub thiab dolomite) tau ntxiv. Cov ntaub ntawv noyajthiab ua ke nrog impurities (zoo li phosphorus thiab leej faj) thiab oxides, sib sau ua kua sleag uas ntab rau saum covMolten SteelCov. Qhov nolag txheej pabua kom huvCov hlau, tiv thaiv nws los ntawm cov kev paug atmosphricer, thiab insulate da dej, txo qhov kom sov. Cov kev ua si khausSab hauv qhov cubsuav nrog hluav taws xob los ntawm arc, convectionion nyob rau hauv lubMolten Hlau, thiab tshuaj lom neeg. Ib zaug txhua tusseemyog melted thiab cov hlau ncav cuag lub hom phiaj kub thiab muaj pes tsawg leeg (tshuaj xyuas los ntawm kev ntsuas), lub zog yog txo lossis txiav tawm. Tusqho cubyog tom qab ntawv tapped - tilted rau ncuav lubMolten Steelrau hauv ankuaj, cais nws los ntawm slag, uas feem ntau tau nchuav tawm nyias. Qhov no ua tiav ib qhosteelmakingpuag ncig, thiab covqho cubyog npaj rau tus nqi tom ntej.

9. Li cas graphite electrod

Qhov zoo tshaj ntawm lubGraphite electrodessiv nyob rau hauv ibFais arc rauvlossisLadle rauv tawsMuaj qhov cuam tshuam ncaj qha thiab tseem ceeb rau ob qho kev ua haujlwm thiab cov nqi ntau lawm. Kev sivsiab zooCov hluav taws xob, xws li txhim khu kev qhaUHP Graphite Hluav Taws Xob, tab tom muaj lub suab nrovGraphation Chaw tsim tshuaj paus, yog qhov tseem ceeb rau kev ua tau zoo. Txo cov hluav taws xob qis dua tuaj yeem ua rau ntau cov teeb meem thiab cov nuj nqis nce ntxiv.

Ib qho tseem ceeb yogkev noj electrodeCov. Cov hluav taws xob tau siv los ntawm cov lus qhia sublimation (vaporization nyob rau hauv arc), sidas oxidation (hlawv nyob rau hauvqho cubhuab cua), thiab tawg.Zoo-Zoo Graphite EctrodesUa kom muaj nuj nqis txo qis vim yog ua kom zooCov khoom siv rawXaiv (Koob cokerauUhp), tswj cov txheej txheem tsim kev tsim cov txheej txheem ua kom nce ntom ntom thiab zoo dua oxidation tiv taus, thiab zoo duaHigh Txhua Yam ZogCov. Kev noj qab tsawg dua txhais tau tias yuav txo cov nqi electrode ib tuj ntawm steel tsim tawm.

Breakage yogLwm qhov tseem ceeb taw tesCov. Kev tawg pob, feem ntau tshwm sim ntawm cov pob qij txha lossis vim yog thermal poob / tshuab kev ntxhov siab, tuaj yeem ua rau kev ua haujlwm qeeb. Tusqho cubyuav tsum tau tso tseg, cov ntu tawg tshem tawm (qee zaum ib qho haujlwm nyuaj yog tias nws poob rau hauvMolten Hlau), thiab ib qho tshiabGraph kaw electrodeHauv qab sab sib sau thiab ntsia. Lub sijhawm no txo ​​cov khoom lag luam thiab nce nqi.Siab zooCov hluav taws xob nrog lub zog superior thiab thermal poob siab kuj tsawg heev kev pheej hmoo ntawm kev cuam tshuam no. Tsis tas li ntawd, zoo ib yamHluav Taws Xob Kev Tshaj Tawm (Kev tiv thaiv qis) Ua kom pom kev hloov hluav taws xob ua kom nrawm nrawm (kais-to-kais lub sij hawm) thiab qis dua kev siv hluav taws xob (kWh ib tev ntawm cov hlau). Kev tsis sib xws ua tau zoo tuaj yeem ua rau arcs tsis ruaj khov thiab ua tsis tau muaj zog. Rau cov neeg yuav khoom xws li Markson, kev paub cov khoom xa tuaj qeeb lossis daim ntawv pov thawj kev dag ntxias lwm txheej kev pheej hmoo ntxiv; Ua kom zoo ib yam zoo los ntawm tus neeg xa khoom yog qhov tsis muaj kev cuam tshuam cuam tshuam cov sijhawm tsim khoom ntawm cov hlau millices nws cov khoom siv.

10. Kev txiav txim siab tseem ceeb rau kev kos cov khoom zoo graphite electrodes

Rau cov kws tshaj lij uas zoo li Malompson, sourcingGraphite electrodesUa tau zoo yuav tsum tau ua tib zoo xav txog ntau yam dhau ntawm qhov pib tus nqi. Kom ntseeg tau tias yog cov mov yooj yim ntawmsiab zooCov hluav taws xob yog qhov tseem ceeb rau kev tswj cov haujlwm du thiab tswj hwm hauvEAF SteelmakingCov. Ntawm no yog cov ntsiab lus tseem ceeb kom tsom rau:

1. Tus xa khoom rov qab thiab kev tshaj lij:Tus khub nrog ib qho tsimGraphation Chaw tsim tshuaj pausnrog ib tug pov thawj saib cov ntaub ntawv thiab kev paub tob tob. Ua tus tswv tsev lub Hoobkas (allen) nrog 7 kab ntau lawm tsim tawm hauv ntiaj teb (USA, Europe, Australia cov kev xav tau thiab kev xav tau zoo. Saib rau pob tshab thiab kev txawj ntse.
2. Cov ntaub ntawv pov thawj zoo thiab ntawv pov thawj:Hais kom muaj kev soj ntsuam zoo tshaj tawm thiab cov ntawv pov thawj cuam tshuam (E.G., ISO 9001). Qhia cov khoom siv tshwj xeeb (Cov khoom siv rawnyiamKoob cokelossisRoj av coke, Resistivity, lub zog, ntom). Yuav ceev faj ntawm cov ntawv pov thawj kev dag ntxias; Xav txog kev tshuaj ntsuam thib peb yog tias tsim nyog. Peb cov khoom lag luam, zoo liKev Loj Siab Lub Zog Graphite Blocks, Ua raws li cov qauv thoob ntiaj teb.
3. QIB Xaiv (HP vs. UHP):Ua haujlwm nrog tus xa khoom los txiav txim qib tsim nyog (HP graphite electrodelossisUhp) raws li qhov tshwj xeebqho cubHom (Eaf, Ladle rauv taws, Submerged arc rauv), Kev ntsuas hluav taws xob, thiab kev ua haujlwm ua haujlwm. Siv tus qauv raug kho kom zoo thiab raug nqi.
4. Kev Txhawb Nqa thiab Kev Sib Txuas Lus:Kev sib txuas lus tau zoo yog qhov tseem ceeb heev. Xaiv ib qho chaw muag khoom nrog cov pab pawg uas teb tau muag thiab cov cuab yeej siv tau tuaj yeem teb cov lus nug, muab cov teeb meem txhawb nqa, thiab chaw nyob kom sai. Qhov no pab kov yeej cov ntsiab lus tsis zoo xws li kev sib txuas lus tsis muaj txiaj ntsig.
5. Logistics thiab tub yug:Txhim khu kev qha thiab cov khoom xa tuaj yog qhov tseem ceeb kom tsis txhob nres ntau lawm. Sib tham txog cov lus xa tuaj, cov thawj zaug zaug, thiab ntim khoom. Xyuas kom cov khoom xa khoom tau muaj cov khoom xa tawm rau koj thaj chaw (E.G., USA, North America zoo los tiv thaiv kev xa khoom qeeb.
6. Sib xws:Xyuas kom cov khoom xa tuaj yeem muab cov khoom zoo ib yam nkaus tom qab batch. Kev hloov pauv hauv cov khoom hluav taws xob tuaj yeem ua rau tsis muaj peev xwmqho cubkev ua tau zoo thiab nce noj.
7. Tag nrho cov nqi ntawm cov tswv cuab:Saib dhau ntawm tus nqi yuav ibGraph kaw electrodeCov. Qhov Qhia Txog Cov Nqi Siv, Kev Ruaj Ntseg, Kev pheej hmoo ntawm Cov Khaub Ncaws (Cov Nqi Ncauj Lus), thiab Logistics Kev Muaj Peev Xwm Kom Paub Tias Muaj Peev Xwm Muaj Tseeb.Siab zooCov hluav taws xob feem ntau muab tus nqi zoo dua hauv kev khiav ntev.
8. Cov ntsiab lus them nqi:Sib tham thiab pom zoo ntawm cov kev them nyiaj kom haum thiab muaj kev nyab xeeb them rau thoob ntiaj teb B2B kev lag luam.

Los ntawm kev ua tsom mus rau cov kev ua kom zoo no, cov neeg yuav khoom tuaj yeem tsim kev sib raug zoo nrog cov khoom siv txhim khu kev qha, kev pheej hmoo, thiab ua kom lawvFais arc rauvUa haujlwm tau zoo nrog kev ua tiav saum tojGraphite electrodes.

Ntsiab lus: Kessays ntawm Graphite Electrodes hauv EAFs

• Tub ntxhais muaj nuj nqi: Graphite electrodesUa raws li tus saib xyuas, xa cov siabLub Hluav Taws Xob Tam Sim Nomus rau hauv ibFais arc rauv (Eaf) lossisLadle rauv taws.
• Melting tshuab:LawvTsim ARCnruab nrab ntawm lub clostrode taub thiab covSeem Hlau, generating khausThaum tshav kub kub tsim(> 3000 ° C) uasmelts cov hlau.
• Vim li cas graphite?Graphite yog xaiv rau nws qhov tshwj xeeb ua ke ntawmKev kub siabKuj, zoo heevHluav Taws Xob Kev Tshaj Tawm, siab siab thermal conductivity, thermal poob siab kuj, thiab machinesility.
• EAF Txheej Txheem:TusEafkev sivGraphite electrodesrauMelt Seem Hlau, muab ib qho hloov tau yooj yim thiab rov ua dua-ua kom zoo rausteelmaking.
• Cov Chav Hluav Taws Xob: Graphite electrodestuaj nyob rau hauv cov qib nyiam HP (siab zog) thiabUhp (Ultra-Siab Hwjchim), txawv hauvCov khoom siv raw (coekHom), Khoom, thiab haum rauqho cubqib fais fab thiabceev ceev.
• :Cov hluav taws xob tau koom nrog hauv txhua thiab ua tib zoo ntsia rau hauvqho cub, Xav kom meej kho thiab ua haujlwm.
• Cov Teeb Meem Zoo: Zoo-Zoo Graphite EctrodesLos ntawm cov tuam ntxhab txhim khu kev qha ua rau kev noj qis dua, txo cov kev pheej hmoo txaus ntshai, lub zog zoo dua, thiab qis dua tag nrho cov nqi ua haujlwm rau lubqho cub.
• Kev ua tiav:Cov neeg yuav khoom yuav tsum tsom rau cov chaw xa khoom, cov ntawv pov thawj zoo (cov ntawv sau cia, kev cia siab, thiab tag nrho cov nqi ntawm cov tswv cuab thaum sourcingGraphite electrodes.

Nkag Siab Li CasGraphite hluav taws xob ua haujlwmyog qhov tseem ceeb rau kev txaus siab ua tau zoo thiab qhov tseem ceeb ntawm niaj hnub noFais arc rauve steelmaking.