Raws li tus neeg muag khoom ntawm siab - Graphite Tubes zoo, Kuv tau pom ua ntej lub luag haujlwm tseem ceeb ntawm cov khoom no ua si hauv ntau lub tshuab hluav taws xob. Ib qho tseem ceeb uas cuam tshuam rau kev ua tau zoo ntawm graphite hlab hauv hluav taws xob yog kev tso cai. Hauv qhov blog no, peb yuav tshawb xyuas seb qhov permittivity cuam tshuam li cas rau kev ua haujlwm ntawm graphite hlab, thiab qhov kev nkag siab no tuaj yeem coj koj li cas rau kev txiav txim siab rau koj daim ntawv thov hluav taws xob.
Nkag siab Permittivity
Ua ntej delving rau hauv qhov cuam tshuam ntawm graphite hlab, nws yog ib qho tseem ceeb kom nkag siab tias permittivity yog dab tsi. Permittivity, feem ntau txhais tau tias yog ε, yog ib qho kev ntsuas ntawm qhov hluav taws xob ntau npaum li cas cov khoom tuaj yeem khaws lossis "tso cai" hauv nws thaum siv hluav taws xob. Nws yog ib qho cuab yeej tseem ceeb ntawm cov khoom siv dielectric thiab muaj feem xyuam rau cov khoom muaj peev xwm los polarize nyob rau hauv teb rau ib qho hluav taws xob teb.
Muaj ob lub ntsiab ntawm permittivity: absolute permittivity (ε) thiab txheeb ze permittivity (εr). Tus txheeb ze permittivity, tseem hu ua dielectric tas li, yog qhov piv ntawm qhov permittivity ntawm cov khoom siv rau qhov permittivity ntawm qhov chaw dawb (ε0). Lub dielectric tas li muab kev ntsuas ntawm ntau npaum li cas lub zog ntawm lub capacitor tuaj yeem khaws thaum cov khoom siv dielectric tam sim no piv rau thaum tsuas muaj lub tshuab nqus tsev ntawm cov phaj capacitor.
Lub luag haujlwm ntawm Graphite Tubes hauv Cov Hluav Taws Xob
Graphite raj tau dav siv hauv cov tshuab hluav taws xob rau ntau yam laj thawj. Lawv cov hluav taws xob hluav taws xob siab ua rau lawv zoo tagnrho rau cov ntawv thov xws li cov khoom siv hluav taws xob hauv cov hluav taws xob electrolysis, cov khoom cua sov hauv siab - qhov cub kub, thiab cov khoom hauv hluav taws xob tawm tshuab (EDM). Lawv kuj muaj cov thermal conductivity zoo heev, tshuaj tiv thaiv, thiab txhua yam muaj zog, uas ua rau lawv muaj peev xwm ua tau zoo thiab ua haujlwm ntev hauv qhov hnyav hluav taws xob.
Hauv cov tshuab hluav taws xob, cov raj graphite tuaj yeem ua cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, lossis kev sib xyaw ua ke ntawm ob qho tib si, nyob ntawm cov ntawv thov tshwj xeeb. Piv txwv li, nyob rau hauv ib tug electrolysis cell, lub graphite tube ua hauj lwm raws li ib tug electrode, ua hluav taws xob los pab txhawb cov tshuaj tiv thaiv nyob rau hauv lub electrolyte. Hauv qhov kub siab - qhov cub kub, lub raj graphite tuaj yeem siv los ua cov khoom cua sov, hloov hluav taws xob hluav taws xob rau hauv cov cua sov los ntawm cov cua sov.
Yuav ua li cas Permittivity cuam tshuam rau Graphite Tube Performance
Hluav taws xob conductivity
Graphite yog ib tug zoo conductor ntawm hluav taws xob vim lub delocalized electrons nyob rau hauv nws cov carbon atoms. Txawm li cas los xij, qhov permittivity ntawm qhov nruab nrab ib puag ncig tuaj yeem cuam tshuam qhov ntws ntawm electrons hauv graphite raj. Thaum qhov permittivity ntawm qhov nruab nrab yog siab, nws tuaj yeem ua rau ntau polarization ntawm cov molecules hauv nruab nrab. Qhov polarization no tuaj yeem tsim hluav taws xob uas tawm tsam cov hluav taws xob siv hluav taws xob, txo cov hluav taws xob hauv hluav taws xob hauv lub graphite raj. Yog li ntawd, qhov ntws ntawm electrons tuaj yeem cuam tshuam, ua rau txo qis hauv cov hluav taws xob conductivity ntawm graphite raj.
Ntawm qhov tod tes, qhov qis - permittivity nruab nrab tso cai rau kom muaj txiaj ntsig zoo ntawm cov hluav taws xob hauv cov raj graphite. Nrog tsawg polarization nyob rau hauv nruab nrab, tsis tshua muaj kev tawm tsam rau daim ntawv thov hluav taws xob, thiab cov electrons tuaj yeem txav tau yooj yim dua los ntawm graphite lattice. Qhov no tuaj yeem txhim kho cov hluav taws xob conductivity ntawm graphite raj thiab txhim kho nws cov kev ua tau zoo hauv cov tshuab hluav taws xob.
Dielectric cwj pwm
Txawm hais tias graphite yog tus neeg xyuas pib, nws tuaj yeem pom tus cwj pwm dielectric nyob rau hauv qee yam mob. Thaum cov hluav taws xob hloov pauv tau siv rau lub raj graphite, qhov polarization ntawm cov pa roj carbon atoms hauv cov qauv graphite tuaj yeem tshwm sim. Lub permittivity ntawm graphite raj nws tus kheej thiab qhov nruab nrab ib puag ncig cuam tshuam cov txheej txheem polarization.
Lub siab - permittivity nruab nrab tuaj yeem txhim kho qhov polarization ntawm graphite raj, ua rau nws cov dielectric poob. Dielectric poob tshwm sim thaum lub zog khaws cia hauv cov khoom siv polarized yog dissipated li cua sov. Hauv cov tshuab hluav taws xob, kev poob qis dhau ntawm dielectric tuaj yeem ua rau overheating ntawm graphite raj, uas tuaj yeem ua rau nws qhov kev ua tau zoo thiab txo nws txoj sia. Yog li ntawd, nyob rau hauv daim ntawv thov uas txo dielectric poob yog ib qho tseem ceeb, xws li nyob rau hauv siab - zaus hluav taws xob circuits, nws yog ib qho tseem ceeb uas yuav tau xav txog qhov permittivity ntawm cov ntaub ntawv nyob rau hauv kev sib cuag nrog lub graphite raj.
Cov teebmeem Capacitive
Graphite tubes tuaj yeem tsim cov capacitors thaum lawv nyob ze rau lwm cov khoom siv hluav taws xob lossis dielectric. Lub capacitance ntawm lub capacitor tsim los ntawm graphite raj thiab lwm yam khoom yog ncaj qha proportional rau permittivity ntawm cov khoom dielectric ntawm lawv. Lub permittivity ntau dua ntawm cov khoom siv dielectric yuav ua rau muaj peev xwm ntau dua.
Hauv cov tshuab hluav taws xob, tsis xav tau cov teebmeem capacitive tuaj yeem ua rau lub teeb liab distortion, lub zog poob, thiab cuam tshuam. Piv txwv li, nyob rau hauv ib tug siab - hluav taws xob Circuit Court ceev, lub capacitance tsim los ntawm ib tug graphite raj thiab nws cov nyob ib puag ncig cov khoom yuav ua rau qeeb lub teeb liab propagation thiab qhia lub suab nrov. Los ntawm kev ua tib zoo xaiv cov ntaub ntawv nrog qhov tsim nyog permittivity qhov tseem ceeb, cov teebmeem capacitive tuaj yeem txo qis, ua kom muaj kev ntseeg siab ntawm cov hluav taws xob.
Daim ntawv thov thiab kev txiav txim siab
Kev nkag siab txog yuav ua li cas permittivity cuam tshuam rau graphite tube kev ua tau zoo yog qhov tseem ceeb hauv ntau daim ntawv thov. Piv txwv li, nyob rau hauv cov hlau - smelting kev lag luam, graphite hlab yog siv raws li electrodes nyob rau hauv hluav taws xob arc rauv. Qhov permittivity ntawm cov slag thiab cov pa roj ib puag ncig tuaj yeem cuam tshuam cov hluav taws xob conductivity thiab hluav taws xob tsim nyob rau hauv graphite electrodes. Los ntawm optimizing qhov permittivity ntawm ib puag ncig nruab nrab, qhov ua tau zoo ntawm cov txheej txheem smelting tuaj yeem txhim kho, txo kev siv hluav taws xob thiab ua kom lub neej ntev ntawm graphite electrodes.
Ntxiv nrog rau graphite raj, lwm yam khoom siv graphite xws li Graphite Pwm rau Hnub Qub Ntawm David Kub thiab Ntshiab Graphite Ingot Pwm kuj tau txais txiaj ntsig los ntawm kev nkag siab zoo ntawm kev tso cai. Cov pwm no yog siv rau hauv cov hlau castings, thiab permittivity ntawm cov khoom pwm thiab cov hlau molten tuaj yeem cuam tshuam rau cov txheej txheem kub hloov thiab solidification.
Xaus
Hauv kev xaus, permittivity plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab kev ua haujlwm ntawm graphite hlab hauv cov tshuab hluav taws xob. Nws cuam tshuam rau cov hluav taws xob conductivity, dielectric tus cwj pwm, thiab capacitive los ntawm graphite hlab, uas nyob rau hauv lem cuam tshuam rau tag nrho cov efficiency thiab kev cia siab ntawm cov hluav taws xob systems. Raws li tus neeg muag khoom Graphite Tube, peb nkag siab qhov tseem ceeb ntawm cov xwm txheej no thiab tuaj yeem muab rau koj nrog siab - graphite raj zoo haum rau koj cov kev siv hluav taws xob tshwj xeeb.
Yog tias koj xav tau cov raj graphite lossis lwm yam khoom siv graphite rau koj lub tshuab hluav taws xob, peb caw koj tiv tauj peb kom muaj kev sib tham ntxaws. Peb pab pawg kws tshaj lij tau npaj los pab koj xaiv cov khoom tsim nyog thiab ua kom lawv qhov kev ua tau zoo hauv koj daim ntawv thov.
Cov ntaub ntawv
Ashby, MF, & Jones, DRH (2012). Cov Khoom Siv Hluav Taws Xob 1: Kev Taw Qhia rau Cov Khoom, Kev Siv, thiab Kev Tsim. Butterworth - Heinemann.
Kittel, C. (2005). Taw qhia rau Solid State Physics. John Wiley & Tub.
Ziman, JM (1972). Cov Ntsiab Cai ntawm Txoj Cai ntawm Cov Khoom. Cambridge University Press.