Daim ntawv thov ntawm Graphite cov hluav taws xob hauv hluav taws xob arc: ib qho tseem ceeb hauv kev txhim kho lub neej thiab ua haujlwm
Fais Arc rauv (EAF), raws li cov khoom siv metallurgical, tau siv dav hauv cov hlau thiab tsis muaj kev lag luam hlau. Lawv lub hauv paus ntsiab lus ua haujlwm muaj kev kub ntxhov siab ntawm cov hluav taws xob thiab cov khoom siv raw rau cov hlau kub thiab melt. Vim lawv lub cev thiab tshuaj lom neeg tshwj xeeb, graphite electrodes nthuav qhia kev ua tau zoo hauv EAFs, txuas ntxiv hluav taws xob cov hluav taws xob lub neej. Hauv qab no yog cov ncauj lus kom ntxaws tshuaj xyuas seb cov graphite hluav taws xob txhim kho ntev ntawm EAFs los ntawm ntau qhov kev xav.
1. Kev kub-kub ruaj khov
Graphite elecessions Qhov tshwj xeeb ua rau muaj qhov kub siab, nrog lub ntsej muag kub siab, nrog lub ntsej muag melting kom siab li 3650℃-far ntau tshaj ntawm feem ntau cov hlau thiab alloys. Hauv EAF, cov hluav taws xob yuav tsum ua kom muaj qhov kub tshaj 3000 degree, tsis tau graphite cov khoom siv lub cev ruaj khov thiab tshuaj lom neeg nyob rau hauv tej yam kev mob hnyav. Hauv kev sib piv, cov hluav taws xob ua los ntawm lwm cov ntaub ntawv zoo li muag muag, deform, lossis txawm yaj ntawm kev kub siab, ua rau luv luv lifabtomatures. Lub thermal zoo tshaj qhov ruaj ntseg ntawm graphite hluav taws xob ua kom ruaj khov nyob rau hauv lub caij nyoog kub siab, yog li txuas tag nrho cov kev pabcuam EAF.
2. Zoo hluav taws xob conduction
Graphite electrodes nthuav qhia cov hluav taws xob kev coj zoo, nrog cov qes qis tiv thaiv tau ua rau kis tau tam sim no. Hauv EAFs, electrodes yuav tsum hloov kho lub zog hluav taws xob rau hauv lub zog hluav taws xob, thiab qhov qis tsis kam ntawm graphite minimizes kev siv hluav taws xob, txhim kho kev ua haujlwm. Tsis tas li ntawd, cov neeg tau txais kev cuam tshuam qis tus kheej cua sov ntawm cov electrodes, mitigating qhov kev pheej hmoo ntawm kev puas tsuaj thermal. Qhov kev ua tau zoo no tsuas yog siv rau ERHAF kev ua tau zoo tab sis kuj tau txo electrode hnav, ntev lawv lub neej pabcuam.
3. Muaj Zog Txhua Yam
Graphite cov ntawv qhia tau ntau yam siv tshuab zog, ua rau kom lawv tiv thaiv cov tshuab kev ntxhov siab thiab kev coj ua lub sijhawm EAF. Nyob rau hauv rauv, electrodes pheej txav ntsug los kho arc ntev thaum mus kev cuam tshuam thiab siab los ntawm cov hlau molten. Lub zog siab thiab kev nruj ntawm graphite cov hluav taws xob tiv thaiv pob txha lossis ntau dhau kev hnav thiab muab txo cov zaus EAF.
4. Thermal poob siab kuj
EAF kev ua haujlwm ib puag ncig koom ua ke muaj kev sib cav sib xyaw ua ke, uas yuav tsum muaj cov electrodes kom thev naus laus zis sai li sai tau. Graphite hluav taws xob kev nthuav tawm cov cua nab kuab poob siab, tswj cov txheej txheem kev ncaj ncees txawm tias muaj kev puas tsuaj lossis kev puas tsuaj los ntawm kev ntxhov siab thermal. Cov cuab yeej no ua kom muaj kev ruaj khov ntev hauv EAFs, txo cov electrode tsis ua hauj lwm muaj kev ua tsis tiav.
5. Tshuaj Corrosion Kuj
Hauv EAFs, cov ntawv hluav taws xob raug nthuav tawm ntau cov hlau oxides, slag, thiab lwm yam tshuaj corrosive. Graphite hluav taws xob muaj cov tshuaj kuj zoo heev, nrog kev tawm tsam los ntawm cov acids, alkalis, thiab oxides. Cov cuab yeej no txo corrosion-ua rau muaj kev cuam tshuam, txuas ntxiv lub neej.
6. Tsawg Thermal nthuav tawm coefficient
Graphite hluav taws xob muaj qhov tsis tshua muaj cua sov nthuav tawm coefficient, lub ntsiab lus hloov pauv hauv qab cov kub muaj tsawg. Cov xeeb ceem no tiv thaiv kev ntxhov siab lossis deformation vim yog thermal nthuav dav, txo txoj kev pheej hmoo ntawm kev puas tsuaj. Raws li qhov tshwm sim, graphite hluav taws xob tseem ruaj khov thaum lub sij hawm ntev-ntsuas kev lag luam, pab txhawb rau EAF qhov kav ntev.
7. Yus lubrice lubricating Cov Khoom Siv
Graphite electrodes yog nws tus kheej lubricating, txo kev sib txhuam nrog lwm cov khoom ntawm cov kub. Cov yeeb yam no ua kom cov kev sib tsoo txhav tsis dhau ntawm lub cub tawg, txo kev hnav thiab kev puas tsuaj. Tus kheej lubricating Xwm tsis tsuas yog ncua electrode lub neej tab sis kuj txo tus nqi kho.
8. Ib puag ncig ua phooj ywg
Graphite cov tshuab hluav taws xob tsim cov pa paug me me thaum lub sijhawm tsim khoom thiab siv thiab yog siv tau yooj yim. Qhov no eco-friendliness li niaj hnub tsim kev lag luam kom zoo thaum tshem tawm cov khoom puas tsuaj los ntawm ib puag ncig cov khoom siv.
Tag
Hauv cov ntsiab lus, Graphite hluav taws xob txawm txhim kho lub neej kev pabcuam, cov khoom siv hluav taws xob tsis zoo, cov khoom siv rau tus kheej, thiab cov txiaj ntsig ib puag ncig. Cov yeeb yam no txhim kho kom sov, hluav taws xob siv, thiab ua haujlwm ntev, ua cov hluav taws xob graphite indispensable hauv cov me me me me. Lawv lub luag haujlwm hauv kev nce qib kev txhim kho kev muaj kev lag luam tseem pivotal.