graphite electrodes ua haujlwm li cas?

Cia peb tham txog Yuav ua li cas graphite electrodes ua haujlwm? graphite electrode manufacturing txheej txheem thiab Vim li cas graphite electrodes yuav tsum tau hloov?
1. graphite electrodes ua haujlwm li cas?
Cov electrodes yog ib feem ntawm lub qhov cub lub hau thiab tau sib sau ua ke rau hauv kab. Cov hluav taws xob ces dhau los ntawm cov electrodes, tsim ib qho arc ntawm cov cua sov uas melts cov seem hlau.
Cov electrodes yog txav mus rau hauv cov seem hauv lub sijhawm meltdown. Tom qab ntawd lub arc yog tsim los ntawm cov electrode thiab hlau. Los ntawm kev txiav txim siab txog kev tiv thaiv, tsis tshua muaj hluav taws xob raug xaiv rau qhov no. Tom qab lub arc yog shielded los ntawm electrodes, qhov voltage yog nce rau ceev cov txheej txheem melting.
2. graphite electrode manufacturing txheej txheem
Cov graphite electrode feem ntau yog ua los ntawm cov roj av coke thiab rab koob coke, thiab cov thee bitumen yog siv los ua cov ntawv khi. Nws yog tsim los ntawm calcination, compounding, kneading, pressing, roasting, graphitization thiab machining. Nws yog tso tawm hluav taws xob hluav taws xob nyob rau hauv daim ntawv ntawm hluav taws xob arc nyob rau hauv hluav taws xob arc rauv. Tus neeg xyuas pib uas heats thiab melts tus nqi tuaj yeem muab faib ua lub zog graphite electrode, lub zog siab graphite electrode thiab ultra siab zog graphite electrode raws li nws qhov ntsuas zoo.

3. Vim li cas graphite electrodes yuav tsum tau hloov?
Raws li txoj cai noj, muaj ntau qhov laj thawj ntawm kev hloov graphite electrodes.
• Kev siv kawg: Cov no suav nrog sublimation ntawm cov khoom siv graphite uas tshwm sim los ntawm qhov kub thiab txias ntawm arc thiab poob ntawm cov tshuaj tiv thaiv ntawm cov electrode thiab cov hlau molten thiab slag. Kub kub sublimation tus nqi kawg yog nyob ntawm qhov ceev tam sim no los ntawm electrode; kuj muaj feem xyuam nrog txoj kab uas hla ntawm sab electrode tom qab oxidation; Kev noj kawg kuj tseem cuam tshuam txog seb puas yuav ntxig cov electrode rau hauv cov dej steel kom nce carbon.
• Lateral oxidation: Cov tshuaj muaj pes tsawg leeg ntawm electrode yog carbon, Carbon yuav oxidize nrog huab cua, dej vapor thiab carbon dioxide nyob rau hauv tej yam kev mob, thiab oxidation tus nqi ntawm electrode sab muaj feem xyuam rau chav tsev oxidation tus nqi thiab raug cheeb tsam. suav txog li 50% ntawm tag nrho cov electrode noj. Nyob rau hauv xyoo tas los no, txhawm rau txhim kho qhov nrawm nrawm ntawm lub tshuab hluav taws xob, kev ua haujlwm ntawm cov pa oxygen ntau zuj zus, oxidation poob ntawm electrode yog nce.
• Kev poob qis: Thaum cov khoom siv hluav taws xob tau siv tas li ntawm qhov sib txuas ntawm cov hluav taws xob sab sauv thiab sab qis, ib feem me me ntawm cov electrode los yog sib koom ua ke yog detached vim oxidative thinning ntawm lub cev los yog nkag mus ntawm cov kab nrib pleb.
• Nto tev thiab xau: Qhov tshwm sim ntawm qhov tsis zoo thermal shock tsis kam ntawm cov electrode nws tus kheej thaum lub sij hawm smelting.Include electrode lub cev tawg thiab txiv mis tawg. Electrode tawg yog cuam tshuam rau qhov zoo thiab machining ntawm graphite electrode thiab lub txiv mis, kuj muaj feem xyuam rau kev ua haujlwm ntawm cov hlau ua.