Graphite ntawv yog ib daim ntawv tshwj xeeb ua los ntawm graphite. Thaum graphite tsuas yog khawb hauv av, nws zoo li cov nplai, thiab nws tau hu ua ntuj graphite. Hom graphite no yuav tsum tau kho thiab ua kom zoo ua ntej nws tuaj yeem siv tau. Ua ntej, lub ntuj graphite yog soaked nyob rau hauv cov tov tov ntawm concentrated sulfuric acid thiab concentrated nitric acid rau ib lub sij hawm ntawm lub sij hawm, ces ntxuav nrog dej ntshiab thiab dhuav, thiab ces muab tso rau hauv ib tug high-kub qhov cub rau hlawv. Furuite graphite editor hauv qab no qhia txog cov xwm txheej ua ntej rau kev tsim khoomgraphite ntawv:
Vim hais tias cov inlay ntawm graphite evaporates sai sai tom qab cua sov, tib lub sij hawm, lub ntim ntawm graphite expands sai heev los ntawm kaum ob los yog ntau pua lub sij hawm, yog li ntawd ib tug dav graphite yog tau, uas yog hu ua "o graphite". Muaj ntau lub qhov ographite(sab laug tom qab lub inlay raug tshem tawm), uas zoo heev txo qhov ntim ntawm graphite mus rau 0.01 ~ 0.059 / cm3, nrog lub teeb yuag thiab zoo heev tshav kub rwb thaiv tsev. Vim tias muaj ntau cov kab noj hniav nrog ntau qhov sib txawv thiab scraggy, lawv tuaj yeem cuam tshuam nrog txhua lwm yam crisscross los ntawm kev quab yuam sab nraud, uas yog tus kheej-adhesion ntawm nthuav graphite. Raws li qhov no tus kheej-adhesion ntawm nthuav graphite, nws tuaj yeem ua tiav rau hauv daim ntawv graphite.
Yog li ntawd, qhov yuav tsum tau ua ua ntej rau kev tsim cov ntawv graphite yog kom muaj cov khoom ua tiav, uas yog, cov cuab yeej siv los npaj cov graphite nthuav dav los ntawm kev ntub dej, ntxuav thiab hlawv, uas muaj dej thiab hluav taws, uas yuav ua rau tawg, yog li. kev ruaj ntseg ntau lawm yog qhov tseem ceeb tshwj xeeb; Thib ob, papermaking thiab roller pressing tshuab, linear siab ntawm cov menyuam nias yuav tsum tsis txhob siab dhau, txwv tsis pub nws yuav cuam tshuam rau cov ntawv sib xws thiab lub zog ntawm cov ntawv graphite, thiab cov linear siab me dhau, uas yog qhov tsis yooj yim dua. Yog li ntawd, cov txheej txheem txheej txheem yuav tsum muaj tseeb, thiabnraaje ntawv ntshai ya raws. Daim ntawv tiav yuav tsum ntim cov khoom pov thawj noo noo, nco ntsoov ua kom tsis muaj dej thiab khaws cia kom zoo.
Post lub sij hawm: Apr-17-2023