Yuav ua li cas graphite hloov tooj liab li electrode? Qhia los ntawmHigh mechanical zog Graphite Electrode Tuam Tshoj.
Hauv xyoo 1960, tooj liab tau dav siv los ua cov khoom siv hluav taws xob, nrog rau kev siv tus nqi kwv yees li 90% thiab graphite tsuas yog li 10%. Nyob rau hauv lub xyoo pua 21st, ntau thiab ntau cov neeg siv pib xaiv graphite ua cov khoom siv electrode. Hauv Tebchaws Europe, ntau dua 90% ntawm cov khoom siv electrode yog graphite. Tooj liab, ib zaug cov khoom siv hluav taws xob tseem ceeb, yuav luag poob nws ntug ntawm graphite. Dab tsi ua rau qhov kev hloov pauv loj no? Tau kawg, muaj ntau qhov zoo ntawm graphite electrode.
(1) ceev ceev ua: feem ntau, cov neeg kho tshuab ua ceev ntawmGraphite Electrode muagtuaj yeem ua 2 ~ 5 npaug sai dua li tooj liab; Txawm li cas los xij, edm yog 2 ~ 3 zaug sai dua tooj liab, thiab cov khoom siv tsis tshua muaj deformation. Lub softening point ntawm tooj liab yog hais txog 1000 degrees, thiab nws yog ib qho yooj yim rau deformed los ntawm tshav kub. Graphite sublimation kub ntawm 3650 degrees; Lub coefficient ntawm thermal expansion tsuas yog 1/30 ntawm tooj liab.
(2) qhov hnyav dua: qhov ntom ntawm graphite tsuas yog 1/5 ntawm cov tooj liab, uas tuaj yeem txo lub nra ntawm cov cuab yeej siv tshuab (EDM) thaum loj electrodes raug ua tiav los ntawm kev tso tawm; Ntau haum rau daim ntawv thov ntawm pwm loj.
(3) kev siv hluav taws xob tsawg dua; Txij li thaum cov roj ntsha tseem muaj C atoms, thaum lub sijhawm ua haujlwm tawm, qhov kub siab ua rau C atoms hauv cov roj ntsha tawg, uas dhau los ua cov yeeb yaj kiab tiv thaiv ntawm qhov chaw ntawm graphite electrode, them nyiaj rau qhov poob ntawm graphite electrode. .
(4) tsis muaj burrs; Tom qab cov tooj liab electrode ua tiav, nws yuav tsum tau txiav manually kom tshem tawm cov burrs, thaum lub graphite yog ua tiav los ntawm lubGraphite Electrode Hoobkastsis muaj burrs, uas txuag tau ntau tus nqi thiab ua kom yooj yim rau automate ntau lawm
(5) graphite yog yooj yim rau grind thiab polish; Txij li thaum graphite muaj tsuas yog ib feem tsib ntawm kev txiav tsis kam ntawm tooj liab, nws yooj yim dua rau grind thiab polish los ntawm tes.
(6) cov khoom siv qis dua thiab tus nqi ruaj khov dua; Vim qhov nce ntawm tus nqi tooj liab nyob rau hauv xyoo tas los no, tus nqi ntawm isotropic graphite yog qis dua li tooj liab. Nyob rau hauv tib lub ntim, tus nqi ntawm cov khoom graphite dav dav ntawm toyo carbon yog 30% ~ 60% qis dua tooj liab, thiab tus nqi yog ruaj khov dua, qhov luv luv nqi hloov pauv me me heev.
Vim tias qhov txiaj ntsig zoo sib xws, graphite tau maj mam hloov tooj liab raws li cov khoom nyiam rau EDM electrode.
Post lub sij hawm: Jan-22-2021