Yuav ua li cas txiav graphite block?
Graphite blocks, cov khoom siv tshwj xeeb uas sib txuas cov hluav taws xob conductivity ntawm cov hlau nrog cov cua sov tsis zoo ntawm cov hlau tsis muaj -hlau, tau dhau los ua cov khoom siv raw khoom tseem ceeb hauv kev lag luam niaj hnub no. Los ntawm cov ntaub ntawv refractory nyob rau hauv siab -kub rauv rau qhov tsis zoo electrodes ntawm lithium roj teeb, los ntawm precision Cheebtsam nyob rau hauv lub semiconductor teb mus rau tshav kub-cov khoom tiv thaiv nyob rau hauv spacecraft, nws muaj nyob rau hauv ubiquitous. Txawm li cas los xij, qhov nyuaj tsis tau nkig qhov xwm txheej ntawm graphite ua rau txiav nws mus rau hauv cov duab tshwj xeeb thiab qhov ntau thiab tsawg ntawm cov kauj ruam tseem ceeb hauv kev txuas qhov sib txawv ntawm cov khoom muaj peev xwm thiab nws cov ntawv siv kawg. Cov txheej txheem txiav no yog deb ntawm qhov yooj yim "sib faib," tab sis yog ib qho kev ua kom zoo tshaj plaws uas ua ke nrog kev txawj ntse nrog cov cuab yeej niaj hnub.
Feem ntau cov tsoos thiab dav siv txoj kev yog mechanical txiav. Txoj kev no feem ntau siv cov cuab yeej pob zeb diamond lossis carbide rau kev txiav cov tshuab dhos, tshuab milling, lossis ntsug machining chaw. Pob zeb diamond, raws li cov khoom hnyav tshaj plaws hauv cov xwm txheej, yog qhov kev xaiv zoo tshaj plaws rau kev kov yeej qhov nyuaj ntawm graphite. Hauv kev xyaum, kev txiav qhuav yog feem ntau ua haujlwm, nrog rau cov khoom siv plua plav kom zoo los tiv thaiv cov plua plav graphite los ntawm kev cuam tshuam cov khoom raug thiab cov neeg ua haujlwm noj qab haus huv. Cov tshuab txiav yog qhov ua tau zoo thiab pheej yig, ua rau nws tsim tshwj xeeb rau kev tsim khoom loj ntawm cov khoom tsis tu ncua - zoo li graphite qhov chaw uas tsis muaj qhov nruj me ntsis rau qhov yuav tsum tau ua.
Thaum cov kev xav tau siab dua tau muab tso rau ntawm qhov tseeb qhov tseeb, qhov chaw tiav, thiab cov duab ntawm cov graphite blocks, hluav taws xob xaim hluav taws xob txiav (WEDM) thev naus laus zis qhia txog nws qhov tshwj xeeb zoo. Cov txheej txheem no siv kev txav mus los tsis tu ncua, zoo heev hlau hlau (feem ntau molybdenum hlau) ua ib qho hluav taws xob, ua kom kub kub sai sai los ntawm cov hluav taws xob tawm mus rau hauv zos erode cov khoom graphite. Nws tus yam ntxwv zoo tshaj plaws yog nws "softness overcoming hardness," raws li cov hlau bears yuav luag tsis muaj txhua yam txiav quab yuam, yog li ua kom tsis tshua muaj neeg txiav ntawm txoj kev sib tshuam nrog cov npoo du thiab tiaj tus, zoo heev txo cov kauj ruam tom ntej polishing. Txawm hais tias cov khoom siv thiab cov nqi khiav lag luam siab dua li kev txiav tshuab, nws yog qhov tseem ceeb hauv kev ua cov pwm siab -kawg, cov ntsaws ruaj ruaj tshwj xeeb, thiab siab -purity graphite Cheebtsam rau kev tshawb fawb.
Nyob rau hauv xyoo tas los no, nrog rau cov leaps hauv laser technology, laser txiav tau coj ib tug revolutionary breakthrough rau graphite ua. Lub siab-zog-nrawm laser beam yog tsom rau ntawm graphite nto, ua rau cov khoom tam sim ntawd vaporize thiab tsim ib tug txiav seam. Qhov no yog ib qho uas tsis yog-txoj kev sib cuag, tsis pub hnav cov cuab yeej thiab cov khoom siv dag zog, ua kom muaj kev txiav meej tshaj plaws thiab cov qauv tsim. Nws yog qhov tshwj xeeb tshaj yog tsim nyog rau kev npaj ultra-cov ntawv nyias graphite lossis cov txheej txheem sab hauv. Txawm li cas los xij, laser txiav tej zaum yuav ua kom muaj cua sov me ntsis- thaj tsam cuam tshuam ntawm cov npoo, thiab cov cuab yeej siv tau zoo heev. Tam sim no, nws feem ntau yog siv hauv kev txiav- ntug teb uas cov txheej txheem ua haujlwm tsis txaus.
Cov txheej txheem txiav sib txawv sib haum rau cov txheej txheem thov sib txawv. Piv txwv li, loj graphite electrode blanks nyob rau hauv metallurgical kev lag luam feem ntau yog mechanically txiav siv high -efficiency band saws los yog ncig saws; thaum lub ultra-zoo, elongated graphite thermal teb Cheebtsam nyob rau hauv photovoltaic ib leeg-crystal furnaces yuav tsum cia siab rau siab -precision hlau EDM txiav los xyuas kom meej qhov seem stability thiab nto kev ncaj ncees. Lub hauv paus ntawm kev xaiv cov txheej txheem yog nyob rau hauv kev sib npaug ntawm ntau yam kev sib raug zoo ntawm precision, efficiency, nqi, thiab cov kev ua tau zoo kawg ntawm lub workpiece.
Nyob rau hauv cov ntsiab lus, los ntawm cov neeg kho tshuab zoo txiav mus rau cov xaim EDM txiav, thiab tom qab ntawd mus rau kev txiav -ntug laser tshuab, cov txheej txheem txiav rau graphite blocks tau tsim muaj ntau- txheej txheej, ua tiav cov txheej txheem thev naus laus zis. Nws yog los ntawm cov txheej txheem kev txhim kho txuas ntxiv mus uas graphite, cov khoom qub qub uas niaj hnub no, tuaj yeem ua tau zoo "zoo li tus," tso cai rau nws siv nws qhov kev ua tau zoo tshaj plaws hauv cov tswv yim xws li lub zog tshiab, aerospace, thiab cov ntaub ntawv hluav taws xob. Qhov no tiag tiag ua tau raws li cov kev xav tau ntawm ntau hom kev lag luam ntawm cov khoom siv thiab kev ua haujlwm, tsis tu ncua kev txhim kho ntawm kev lag luam kev lag luam.
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