Cov kauj ruam tseem ceeb hauv cov txheej txheem tsim khoom ntawm graphite electrodes yog dab tsi?

Cov txheej txheem tsim cov graphite electrodes yog ib txoj kev ua haujlwm nyuaj thiab ceev faj uas muaj ntau kauj ruam tseem ceeb, txhua kauj ruam cuam tshuam rau qhov zoo thiab kev ua tau zoo ntawm cov khoom kawg. Hauv qab no yog cov kauj ruam tseem ceeb hauv cov txheej txheem tsim cov graphite electrodes:

Kev Xaiv Khoom Siv Raw thiab Kev Kho Mob Ua Ntej:

• Kev Xaiv Khoom Siv Raw: Cov khoom siv raw tseem ceeb rau cov electrodes graphite suav nrog petroleum coke, needle coke, thiab thee tar pitch. Petroleum coke, uas tau los ntawm kev coking ntawm cov roj av seem thiab asphalt, muaj cov tshauv tsawg; needle coke, uas muaj cov qauv fibrous thiab cov coefficient qis ntawm thermal expansion, yog qhov tseem ceeb rau kev tsim cov electrodes graphite muaj zog lossis ultra-high-power; thee tar pitch ua haujlwm ua tus binder.
• Kev kho ua ntej: Cov khoom siv raw raug calcination kom tshem tawm cov dej noo thiab cov khoom tsis haum, txhim kho lawv cov khoom siv physicochemical. Qhov kub calcination feem ntau yog tswj ntawm 1250-1350 ° C kom ntseeg tau tias cov khoom siv raw ua tau raws li cov qauv zoo.

Kev Sib Tsoo, Kev Sib Tsoo, thiab Kev Tshuaj Ntsuam:
Cov khoom siv raw uas tau calcined raug tsoo, sib tsoo, thiab tshuaj xyuas kom tau txais cov pob txha me me thiab hmoov nrog qhov loj me uas xav tau. Cov kauj ruam no yog qhov tseem ceeb rau kev sib xyaw thiab sib tov tom qab, kom ntseeg tau tias cov khoom siv raw sib xws thiab sib xws.

Kev sib xyaw thiab kev sib xyaw:

• Kev Sib Xyaws: Raws li cov khoom xav tau, cov khoom siv raw xaiv tau sib xyaw ua ke raws li qhov sib piv tshwj xeeb kom ua tiav qhov kev ua tau zoo raws li xav tau. Kev ntsuas thiab kev tswj hwm kom raug thaum sib xyaw yog qhov tseem ceeb kom ntseeg tau tias cov khoom kawg zoo sib xws.
• Kev Sib Tov: Cov khoom siv raw sib xyaw ua ke raug sib tov kom huv si thiab sib xyaw kom ua ib qho sib tov sib xyaw. Qhov kub thiab lub sijhawm raug tswj thaum lub sijhawm sib tov kom ntseeg tau tias kev sib tov zoo thiab qhov yas ntawm cov khoom siv raw.

Kev pwm:
Cov khoom siv uas tau sib tov lawm raug nias kom ua rau daim duab pib ntawm lub electrode graphite. Kev tswj qhov siab thiab qhov kub kom meej thaum lub sijhawm molding yog qhov tsim nyog los xyuas kom meej tias cov duab thiab qhov loj ntawm cov khoom yog qhov tseeb. Cov txheej txheem molding suav nrog kev nias tuag, extrusion, thiab kev co molding, xaiv raws li hom khoom thiab cov lus qhia.

Ci:
Lub electrode graphite uas raug pwm yuav raug kho cua sov kub heev kom ruaj khov nws cov qauv. Thaum lub sijhawm ci, cov thee tar pitch hauv cov cokes ntsuab yuav tawm cov volatiles thaum lub sijhawm ntawd nws yuav ntsws thiab poob qhov loj. Lub electrode ci no muaj cov khoom siv physicochemical zoo dua qub, xws li txo qhov loj ntawm cov khoom, txo qhov hluav taws xob resistivity, thiab txhim kho lub zog kho tshuab.

Kev Ua Kom Ntsws (Xaiv Tau):
Rau cov electrodes uas muaj qhov xav tau ntau qhov loj, kev kho mob impregnation yog qhov tsim nyog. Impregnation lub hom phiaj yog kom txo qhov porosity ntawm cov khoom, ua kom nws qhov loj thiab lub zog kho tshuab, thiab txhim kho nws cov hluav taws xob thiab thermal conductivity. Cov kev ntsuas xws li qhov kub ua ntej cua sov, lub sijhawm nqus tsev, qhov kub txhaj tshuaj asphalt, thiab siab raug tswj thaum lub sijhawm impregnation.

Kev ua kom muaj graphite:
Lub electrode raug kho ntawm qhov kub siab dua kom hloov cov qauv ntawm cov khoom siv carbon mus ua cov qauv siv lead ua los ntawm graphite, ua kom nws cov hluav taws xob conductivity thiab tiv taus cua sov zoo dua. Qhov kub thiab lub sijhawm raug tswj thaum lub sijhawm graphitization kom ntseeg tau tias lub electrode mus txog qib graphitization xav tau. Lub electrode graphitized qhia txog kev tiv taus hluav taws xob txo qis thiab kev ua tau zoo dua.

Kev Siv Tshuab:
Lub electrode graphitized raug ua kom tiav, suav nrog kev tho qhov, tig, ua kom tiav qhov kawg, milling xov, thiab cov kauj ruam xws li txiav, ua kom tiaj tus qhov kawg, tig taper, thiab tho qhov rau cov connectors. Kev tswj hwm nruj ntawm kev ua kom raug thiab qhov zoo ntawm qhov chaw yog qhov tsim nyog thaum lub sijhawm ua kom ntseeg tau tias lub electrode qhov tseeb thiab kev ua tau zoo.

Kev Tshuaj Xyuas thiab Ntim Khoom:
Cov electrode tiav lawm raug tshuaj xyuas tag nrho, suav nrog cov yam ntxwv xws li qhov tseeb, qhov hnyav, ntev, txoj kab uas hla, qhov ceev ntawm cov khoom loj, kev tiv taus hluav taws xob, thiab kev ua kom haum ua ntej sib dhos. Tom qab dhau kev tshuaj xyuas, cov electrode raug ntim rau kev thauj mus los thiab khaws cia.