Nyob rau xyoo tas los no, nrog rau kev siv cov pwm graphite ntau heev, tus nqi siv txhua xyoo ntawm cov pwm hauv kev lag luam tshuab yog 5 npaug ntawm tag nrho cov nqi ntawm txhua yam cuab yeej tshuab, thiab qhov poob cua sov loj heev kuj yog qhov tsis sib xws rau cov cai txuag hluav taws xob uas twb muaj lawm hauv Suav teb. Kev siv cov pwm ntau heev tsis yog tsuas yog ua rau cov nqi ntawm cov lag luam nce ntxiv xwb, tab sis kuj ua rau cov kab ntau lawm kaw vim yog kev hloov pwm ntau zaus, thaum kawg ua rau muaj kev poob nyiaj txiag loj heev.
Raws li kev soj ntsuam, vim yog cov khoom siv pwm thiab tus nqi zog nce siab heev thiab lwm yam laj thawj, cov txiaj ntsig ntawm kev lag luam pwm tau poob qis xyoo tas los; Yuav kom muaj sia nyob thiab txhim kho, ntau lub tuam txhab tau txais yuav
Kev hloov khoom siv yog siv los ua qhov ntsuas tseem ceeb ntawm kev hloov pauv thiab kev txhim kho. Nws nkag siab tias ntau lub tuam txhab tau tsim cov khoom siv graphite spark discharge, hauv kev tsim pwm ua lub luag haujlwm tseem ceeb heev. Piv nrog rau cov pwm tooj liab ib txwm muaj, cov khoom siv graphite muaj qhov zoo ntawm kev ua haujlwm siab thiab qhov zoo ntawm qhov chaw, tshwj xeeb tshaj yog hauv kev ua cov pwm qhov chaw ntawm kev ua haujlwm precision, nyuaj, phab ntsa nyias, cov khoom siv tawv siab muaj qhov zoo heev. Piv nrog tooj liab, cov khoom siv graphite muaj qhov zoo xws li kev siv tsawg dua, kev tawm sai, lub teeb yuag thiab cov coefficient nthuav dav thermal me me, yog li tooj liab electrode tau maj mam dhau los ua cov khoom siv tawm. Hauv kev sib piv, cov khoom siv graphite electrode muaj rau qhov zoo hauv qab no:
1. Ceev ceev; Cov graphite tawm sai dua li tooj liab 2-3 zaug, thiab cov khoom siv tsis yooj yim rau deform. Nws muaj qhov zoo pom tseeb hauv kev ua cov electrode nyias nyias. Lub ntsiab lus mos ntawm tooj liab yog li 1000 degrees, thiab nws yooj yim rau deform vim cua sov.
2. Lub teeb yuag; Qhov ceev ntawm graphite tsuas yog 1/5 ntawm qhov ntawm tooj liab. Thaum lub electrode loj raug ua tiav los ntawm kev tso tawm, lub nra hnyav ntawm cov cuab yeej tshuab (EDM) tuaj yeem txo qis, uas yog qhov tsim nyog dua rau kev siv pwm loj.
3. Kev pov tseg me me; Vim tias cov roj hluav taws xob muaj cov C atoms, qhov kub siab ua rau C atoms hauv cov roj hluav taws xob raug rhuav tshem thaum lub sijhawm ua haujlwm tawm, thiab ib daim zaj duab xis tiv thaiv tau tsim rau ntawm qhov chaw ntawm graphite electrode, uas them rau qhov poob ntawm graphite electrode.
4. Tsis muaj burrs; Tom qab ua tiav cov electrode tooj liab, cov burrs yuav tsum tau tshem tawm manually. Txawm li cas los xij, tsis muaj burrs tom qab ua tiav graphite, uas tsis yog tsuas yog txuag tau ntau tus nqi thiab cov neeg ua haujlwm, tab sis kuj ua rau nws yooj yim dua los ua tiav cov khoom siv tsis siv neeg.
5. Yooj yim polishing; Vim tias qhov txiav tsis kam ntawm graphite tsuas yog 1/5 ntawm cov tooj liab, nws yooj yim dua rau kev sib tsoo thiab txhuam los ntawm tes.
Vi. Tus nqi qis; Vim yog tus nqi tooj liab nce siab hauv xyoo tas los no, tus nqi ntawm graphite hauv txhua yam qis dua li ntawm tooj liab. Hauv qab tib lub ntim ntawm Oriental carbon qhov kev siv dav dav, tus nqi ntawm cov khoom graphite yog 30% txog 60% qis dua li ntawm tooj liab, tus nqi ruaj khov, thiab qhov kev hloov pauv luv luv yog me me. Nrog kev txuag hluav taws xob, kev tiv thaiv ib puag ncig thiab kev ua haujlwm zoo ua qhov tseem ceeb ntawm kev lag luam tsim khoom, cov ntaub ntawv graphite electrode yuav maj mam hloov tooj liab electrode thiab ua lub luag haujlwm tseem ceeb hauv EDM. Ib yam li ntawd, hauv kev sib tw hnyav zuj zus hauv kev lag luam pwm niaj hnub no, kev siv cov thev naus laus zis ua tiav los tsim cov khoom pwm zoo yog txoj hauv kev zoo tshaj plaws rau cov tuam txhab kom yeej kev lag luam thiab cov neeg siv khoom.
Lub sijhawm tshaj tawm: Lub Peb Hlis-10-2021