Dab tsi yog qhov sib txawv ntawm graphite electrode thiab carbon electrode?
Qhov sib txawvNruab nrab ntawm graphite electrodesthiabCov Khoom Siv Roj Carbon Electrodes
Txawm hais tias ob gr graphite electrodes thiab cov roj av roj hluav taws xob tau siv nyob rau hauv cov kev siv tshuab hluav taws xob siab, yam ntxwv sib txawv thiab kev sib piv ntawm ob qho no yog cov ncauj lus sib piv ntawm ob:
1.} cov khoom muaj pes tsawg leeg
|
Ntiag tug |
Graph kaw electrode |
Carbon electrode |
|
Cov khoom siv hauv paus |
Ua los ntawmKoob coke + thee tar pitch |
Ua los ntawmAmorphous Carbon (e {. g {}}}}}, roj av coke, thee thee) |
|
Lub tsev |
Crystalline Graphite(xaj txheej txheem) |
Amorphous Carbon(tus qauv tsis zoo) |
|
Kev coj dawb huv |
Siab dua huv (tsawg tshauv & leej faj) |
Qis kev coj dawb huv (ntau impurities) |
Vim li cas nws tseem ceeb:
Graphite cov qauv crystalline muab nws zoo duaHluav Taws Xob / thermal conductivity.
Cov hluav taws xob hluav taws xob muaj peev xwm pheej yig dua tab sis tsis tshua muaj txiaj ntsig.
{{0 {}} Hluav Taws Xob Hluav Taws Xob & Thermal Condivity
|
Ntiag tug |
Graph kaw electrode |
Carbon electrode |
|
Hluav Taws Xob Kev Tshaj Tawm |
Siab(3-5x zoo dua carbon) |
Qi dua |
|
Thermal conductivity |
Zoo tshaj(dissipates kub ua tau zoo) |
Tus tsis yog(overheats sai dua) |
|
Resiveivity (Ω·m) |
~5–10 μΩ·m |
~30–50 μΩ·m |
Cuam tshuam:
Graphite electrodes yog nyiam nyob rau hauvCov ntawv thov siab tam sim no(e {{. g .}, steelmaking).
Cov tshuaj pab hluav taws xob roj hluav taws xob yog siv qhov chaw qis dua yog siv tau (e {{}} {{.
{{03. kub & oxidation tsis kam
|
Ntiag tug |
Graph kaw electrode |
Carbon electrode |
|
Max khiav hauj lwm temp . |
Txog li 3,500 degree(UHP cov qib) |
50000 degree |
|
Oxidation tsis kam |
Zoo dua(qeeb qeeb burn-tawm) |
Tus tsis yog(oxidizes nrawm dua) |
|
Thermal poob siab tsis kam |
Zoo tshaj(tsis muaj peev xwm nthuav) |
Qaug zog(ntau dua ntiav mus rau tawg) |
Vim li cas nws tseem ceeb:
Graphite kav ntev dua nyob rau hauvFais arc rauv (EAF)Vim tias qeeb qeeb oxidation .
Cov pa roj hluav taws xob hluav taws xob txo qis nrawm dua ntawm huab cua sov sov .
{{0 {}} cov tshuab kho tshuab zog & durability
|
Ntiag tug |
Graph kaw electrode |
Carbon electrode |
|
Ceev |
Siab dua (1.6-1.8 g / cm³) |
Qis dua (1.4-1.6 g / cm³) |
|
Lub zog |
Ntau tiv taus tawg |
Ntau nkig |
|
Siv tus nqi |
Qis dua (vim muaj kev kub siab) |
Siab dua (coj tawm sai dua) |
Cuam tshuam:
Graphite electrodes yogntau ruajnyob rau hauv cov chaw muaj kev muaj teeb meem ib puag ncig .
Cov pa roj carbon electrodes yuav xav tauKev hloov pauv ntau zaus.
5.} Cov txheej txheem tsim khoom
|
Kev ua |
Graph kaw electrode |
Carbon electrode |
|
Cov Khoom Siv Raw |
Koob coke + thee tar pitch |
Roj av coke, thee thee |
|
Duab |
Ua kom sov rau~ 3, 000} degree(tsim cov qauv crystalline) |
Tsis graphitized(tseem yog amorphous carbon) |
|
Tus nqi |
Kim kim dua (vim kev ua tiav) |
Pheej yig |
Vim li cas nws tseem ceeb:
Graphitizitization txhim kho kev coj ua tab sis ntxiv tus nqi ntxiv rau .
Cov tshuaj ntsuab hluav taws xob tau yooj yim dua thiab pheej yig dua los tsim .
6. daim ntaub ntawv
|
Daim ntawv thov |
Graph kaw electrode |
Carbon electrode |
|
Steelmaking (EAF) |
Thawj qhov kev xaiv(Uhp / hp qib) |
Tsis tshua muaj siv (tsawg nyiaj) |
|
Cov hlau tsis muaj hlau |
Silicon, Aluminium Ntau Lawm |
Qee cov ntawv thov tsawg |
|
Tshuaj Kev Lag Luam |
Phosphorus, calcium carbide |
Tus nqi pheej yig dua |
|
Edm (Machining) |
Nyiam rau qhov tseeb |
Tsis haum |
Tseem ceeb takaway:
Graphite electrodes domination cov ntawv thov siab(steel, edm) .
Cov roj hluav taws xob roj hluav taws xob siv tau hauv cov nqi-rhiab, qis dua-kub ua rau .
Ntsiab lus: Qhov twg los xaiv?
|
Yam tseem ceeb |
Graph kaw electrode |
Carbon electrode |
|
Tus nqi |
Siab dua |
Qi dua |
|
Ua yeeb yam |
Superior (conductivity, durability) |
Qaug zog |
|
Lub neej |
Ntev dua |
Luv dua |
|
Zoo tshaj plaws rau |
Steelmaking, siab eafs tam sim no |
Cov Txheej Txheem Tsawg- |
Tag
Siv graphite electrodesrauKev ua haujlwm siab, qhov kub-Cov ntawv thov (e {{{{0} g .}}, steel rov ua dua tshiab, EDM).
Siv cov pa roj carbon electrodesrauTsawg tus nqi, tsawg-sivcov txheej txheem nyob qhov twg ua tau zoo kawg nkaus .
Koj puas xav tau kev sib piv ntawm cov qhab nia tshwj xeeb (e . g}}, UH. baked carbon)?