Graphite yog ib qho tshuaj uas muaj cov pa roj carbon. Nws cov qauv atomic tau teeb tsa ua tus qauv honeycomb hexagonal. Peb ntawm plaub lub electrons sab nraum lub nucleus atomic tsim cov kev sib txuas covalent muaj zog thiab ruaj khov nrog cov electrons ntawm cov nuclei atomic uas nyob ib sab, thiab lub atom ntxiv tuaj yeem txav mus los tau yooj yim raws lub dav hlau ntawm lub network, ua rau nws muaj cov khoom siv hluav taws xob conductivity.
Cov kev ceev faj rau kev siv cov graphite electrodes
1. Tsis txhob ntub dej - Tsis txhob los nag, dej los yog av noo. Ziab ua ntej siv.
2. Tiv thaiv kev sib tsoo - Ua tib zoo tuav kom tiv thaiv kev puas tsuaj los ntawm kev cuam tshuam thiab kev sib tsoo thaum lub sijhawm thauj mus los.
3. Kev tiv thaiv kom tsis txhob tawg - Thaum siv cov ntsia hlau los khi lub electrode, xyuam xim rau lub zog uas siv los tiv thaiv kom tsis txhob tawg vim yog lub zog.
4. Tiv thaiv kev tawg - Graphite yog brittle, tshwj xeeb tshaj yog rau cov electrodes me me, nqaim thiab ntev, uas yog cov yooj yim tawg nyob rau hauv lub zog sab nraud.
5. Tiv thaiv plua plav - Cov khoom siv tiv thaiv plua plav yuav tsum tau teeb tsa thaum lub sijhawm ua haujlwm kom txo qhov cuam tshuam rau tib neeg kev noj qab haus huv thiab ib puag ncig.
6. Kev tiv thaiv pa luam yeeb - Kev siv hluav taws xob tso pa tawm feem ntau yuav ua rau muaj pa luam yeeb ntau, yog li xav tau cov cuab yeej ua pa.
7. Kev tiv thaiv kom tsis txhob muaj cov pa roj carbon ntau dhau - Graphite yooj yim raug cov pa roj carbon ntau dhau thaum lub sijhawm tso tawm. Thaum lub sijhawm ua cov txheej txheem tso tawm, nws yog qhov tsim nyog los saib xyuas nws cov xwm txheej ua tiav.
Kev Sib Piv ntawm Kev Siv Hluav Taws Xob Los Ua Haujlwm ntawm Graphite thiab Red Copper Electrodes (Yuav tsum muaj kev paub txog tag nrho)
1. Kev ua haujlwm zoo ntawm cov khoom siv kho tshuab: Qhov kev tiv thaiv txiav yog 1/4 ntawm cov tooj liab, thiab qhov ua tau zoo ntawm kev ua haujlwm yog 2 txog 3 npaug ntawm cov tooj liab.
2. Lub electrode yooj yim rau polish: Kev kho qhov chaw yooj yim thiab tsis muaj burrs: Nws yooj yim rau kev txiav tes. Kev kho qhov chaw yooj yim nrog ntawv xuab zeb txaus, uas zam kev cuam tshuam cov duab los ntawm lub zog sab nraud rau ntawm lub electrode cov duab thiab qhov loj me.
3. Siv hluav taws xob tsawg: Nws muaj kev ua hluav taws xob zoo thiab tsis tshua muaj zog, yog 1/3 txog 1/5 ntawm cov tooj liab. Thaum lub sijhawm ua haujlwm tsis zoo, nws tuaj yeem ua tiav qhov tso tawm tsis poob.
4. Kev tawm sai: Qhov kev tawm sai yog 2 txog 3 npaug ntawm tooj liab. Qhov sib txawv hauv kev ua haujlwm tsis zoo tuaj yeem ncav cuag 0.5 txog 0.8 hli, thiab tam sim no tuaj yeem loj txog 240A. Qhov hnav electrode me me thaum siv li niaj zaus rau 10 txog 120 xyoo.
5. Lub teeb yuag: Nrog lub zog tshwj xeeb ntawm 1.7 txog 1.9, uas yog 1/5 ntawm cov tooj liab, nws tuaj yeem txo qhov hnyav ntawm cov electrodes loj, txo qhov hnyav ntawm cov cuab yeej tshuab thiab qhov nyuaj ntawm kev teeb tsa thiab kev hloov kho tes.
6. Kev tiv taus kub siab: Qhov kub sublimation yog 3650 ℃. Nyob rau hauv qhov kub siab, lub electrode tsis mos, zam qhov teeb meem deformation ntawm cov khoom ua haujlwm nyias-phab ntsa.
7. Kev hloov pauv me me ntawm electrode: Tus coefficient ntawm thermal expansion tsawg dua 6 ctex10-6 / ℃, uas tsuas yog 1/4 ntawm cov tooj liab, txhim kho qhov tseeb ntawm kev tso tawm.
8. Cov qauv tsim hluav taws xob sib txawv: Cov hluav taws xob graphite yooj yim ntxuav cov ces kaum. Cov khoom ua haujlwm uas feem ntau xav tau ntau lub hluav taws xob tuaj yeem tsim los ua ib lub hluav taws xob tiav, txhim kho qhov tseeb ntawm cov pwm thiab txo lub sijhawm tso tawm.
A. Qhov ceev ntawm graphite ua haujlwm sai dua li tooj liab. Yog tias siv raws li qhov yuav tsum tau ua, nws yuav sai dua tooj liab 2 txog 5 npaug.
B. Tsis tas yuav siv sijhawm ua haujlwm ntau rau kev tshem tawm cov burr zoo li tooj liab ua;
C. Graphite muaj qhov nrawm nrawm, uas yog 1.5 txog 3 npaug ntawm tooj liab hauv kev ua hluav taws xob tsis zoo
D. Cov hluav taws xob graphite muaj kev hnav thiab tsim kua muag tsawg, uas tuaj yeem txo qhov kev siv cov hluav taws xob
E. Tus nqi ruaj khov thiab tsis tshua muaj kev cuam tshuam los ntawm kev hloov pauv ntawm tus nqi hauv khw
F. Nws tuaj yeem tiv taus qhov kub siab thiab tseem tsis hloov pauv thaum lub sijhawm ua haujlwm hluav taws xob
G. Nws muaj ib qho coefficient me me ntawm thermal expansion thiab high mold precision
H. Lub teeb nyob rau hauv qhov hnyav, nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov pwm loj thiab nyuaj
Qhov saum npoo yooj yim rau kev ua tiav thiab nws yooj yim kom tau txais qhov chaw ua tiav tsim nyog
Lub sijhawm tshaj tawm: Plaub Hlis-22-2025