Yuav ua li cas graphite thiaj hloov tau tooj liab ua ib lub electrode? Qhia los ntawmLub zog siab mechanical Graphite Electrode Tuam Tshoj.
Xyoo 1960, tooj liab tau siv dav ua cov khoom siv electrode, nrog rau kev siv tus nqi suav txog li 90% thiab graphite tsuas yog li 10%. Hauv xyoo pua 21st, ntau thiab ntau tus 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 yog cov khoom siv electrode tseem ceeb, yuav luag poob nws qhov ntug dua graphite. Dab tsi ua rau qhov kev hloov pauv loj no? Tau kawg, muaj ntau qhov zoo ntawm graphite electrode.
(1) kev ua haujlwm ceev dua: feem ntau, kev ua haujlwm ceev ntawmGraphite Electrode rau kev muag khoomtuaj yeem ua tau 2 ~ 5 zaug sai dua li ntawm tooj liab; Txawm li cas los xij, edm yog 2 ~ 3 zaug sai dua li tooj liab, thiab cov khoom siv tsis tshua muaj kev hloov pauv. Lub ntsiab lus mos ntawm tooj liab yog li 1000 degrees, thiab nws yooj yim kom raug hloov pauv los ntawm cua sov. Graphite sublimation kub ntawm 3650 degrees; Tus coefficient ntawm thermal expansion tsuas yog 1/30 ntawm tooj liab.
(2) qhov hnyav dua: qhov ceev ntawm graphite tsuas yog 1/5 ntawm qhov ntawm tooj liab, uas tuaj yeem txo qhov hnyav ntawm cov cuab yeej siv tshuab (EDM) thaum cov electrodes loj raug ua tiav los ntawm kev tso tawm; Zoo dua rau kev siv pwm loj.
(3) kev siv hluav taws xob tsawg dua; Vim tias cov roj hluav taws xob kuj muaj cov C atoms, thaum lub sijhawm ua haujlwm hluav taws xob, qhov kub siab ua rau cov C atoms hauv cov roj hluav taws xob tawg, uas ua rau cov zaj duab xis tiv thaiv ntawm qhov chaw ntawm graphite electrode, them rau qhov poob ntawm graphite electrode.
(4) tsis muaj burrs; Tom qab ua tiav cov tooj liab electrode, nws yuav tsum tau txiav manually kom tshem tawm burrs, thaum lub graphite yog ua tiav los ntawmHoobkas Graphite Electrodetsis muaj burrs, uas txuag tau ntau tus nqi thiab ua rau nws yooj yim dua rau automate ntau lawm
(5) graphite yooj yim dua rau kev sib tsoo thiab txhuam; Vim tias graphite tsuas yog ib feem tsib ntawm kev txiav tsis kam ntawm tooj liab, nws yooj yim dua rau kev sib tsoo thiab txhuam los ntawm tes
(6) tus nqi khoom siv qis dua thiab tus nqi ruaj khov dua; Vim yog tus nqi tooj liab nce siab hauv xyoo tas los no, tus nqi ntawm isotropic graphite qis dua li tooj liab. Hauv tib lub ntim, tus nqi ntawm cov khoom siv graphite dav dav ntawm toyo carbon yog 30% ~ 60% qis dua li tooj liab, thiab tus nqi ruaj khov dua, qhov kev hloov pauv luv luv ntawm tus nqi yog me heev.
Vim yog qhov zoo tshaj plaws no, graphite tau maj mam hloov tooj liab ua cov khoom siv zoo tshaj plaws rau EDM electrode.
Lub sijhawm tshaj tawm: Lub Ib Hlis-22-2021