Cov graphite electrodes ua haujlwm li cas?

Cia peb tham txog Yuav ua li cas cov graphite electrodes ua haujlwm? graphite electrode tsim cov txheej txheem thiab Vim li cas cov graphite electrodes thiaj li xav tau hloov?
1. Cov electrodes graphite ua haujlwm li cas?
Cov electrodes yog ib feem ntawm lub hau cub tawg thiab tau muab sib dhos ua ke ua ke. Tom qab ntawd hluav taws xob hla dhau cov electrodes, tsim ib lub voj voog ntawm cua sov heev uas yaj cov hlau seem.
Cov electrodes raug tsiv mus rau hauv cov khoom seem thaum lub sijhawm yaj. Tom qab ntawd lub arc raug tsim tawm ntawm lub electrode thiab hlau. Los ntawm kev xav txog qhov kev tiv thaiv, qhov hluav taws xob qis raug xaiv rau qhov no. Tom qab lub arc raug tiv thaiv los ntawm electrodes, qhov hluav taws xob raug nce rau kev ua kom cov txheej txheem yaj sai dua.
2. cov txheej txheem tsim khoom siv hluav taws xob graphite
Lub graphite electrode feem ntau yog ua los ntawm roj av coke thiab koob coke, thiab cov thee bitumen yog siv ua cov binder. Nws yog ua los ntawm calcination, compounding, kneading, nias, roasting, graphitization thiab machining. Nws yog los tso tawm lub zog hluav taws xob hauv daim ntawv ntawm hluav taws xob arc hauv lub cub tawg hluav taws xob arc. Tus neeg xyuas pib uas ua kom sov thiab yaj cov nqi tuaj yeem muab faib ua lub zog hluav taws xob graphite electrode, lub zog hluav taws xob graphite electrode siab thiab lub zog hluav taws xob graphite electrode siab heev raws li nws cov ntsuas zoo.

3. Vim li cas cov electrodes graphite thiaj li yuav tsum tau hloov?
Raws li txoj cai siv, muaj ntau yam laj thawj ntawm kev hloov cov electrodes graphite.
• Kev siv kawg: Cov no suav nrog kev hloov pauv ntawm cov khoom siv graphite los ntawm qhov kub siab ntawm arc thiab kev poob ntawm cov tshuaj tiv thaiv ntawm lub electrode thiab cov hlau molten thiab slag. Qhov kub siab sublimation tus nqi ntawm qhov kawg feem ntau nyob ntawm qhov ceev tam sim no mus dhau lub electrode; kuj cuam tshuam nrog lub cheeb ntawm sab electrode tom qab oxidation; Kev siv kawg kuj cuam tshuam nrog seb puas yuav ntxig lub electrode rau hauv dej hlau kom nce carbon.
• Kev oxidation sab nraud: Cov tshuaj lom neeg ntawm lub electrode yog carbon, Carbon yuav oxidize nrog cua, dej pa thiab carbon dioxide nyob rau hauv qee qhov xwm txheej, thiab qhov oxidation ntawm sab electrode muaj feem cuam tshuam nrog qhov oxidation ntawm chav tsev thiab thaj chaw raug. Feem ntau, Electrode sab oxidation suav txog li 50% ntawm tag nrho cov electrode siv. Nyob rau hauv xyoo tas los no, txhawm rau txhim kho qhov ceev ntawm lub cub hluav taws xob, qhov zaus ntawm kev ua haujlwm oxygen tau nce ntxiv, kev poob oxidation ntawm lub electrode tau nce ntxiv.
• Kev poob seem: Thaum siv lub electrode tas li ntawm qhov sib txuas ntawm cov electrodes sab saud thiab sab qis, ib feem me me ntawm lub electrode lossis qhov sib koom ua ke raug tshem tawm vim yog oxidative thinning ntawm lub cev lossis kev nkag mus rau hauv cov kab nrib pleb.
• Qhov nto tev tawm thiab poob: Qhov tshwm sim ntawm qhov tsis zoo thermal shock tiv taus ntawm lub electrode nws tus kheej thaum lub sijhawm smelting. Xws li lub cev electrode tawg thiab lub txiv mis tawg. Lub electrode tawg yog cuam tshuam nrog qhov zoo thiab kev ua haujlwm ntawm graphite electrode thiab lub txiv mis, kuj cuam tshuam nrog kev ua haujlwm ntawm kev ua hlau.