Graphite Khoom Rau Tshuaj Ntsuam Xyuas
Dab tsi yog Graphite khoom rau tshuaj ntsuam xyuas
Cov khoom siv graphite rau kev tshuaj xyuas tshuaj, feem ntau suav nrog graphite crucibles thiab graphite tais, yog qhov tseem ceeb hauv chav kuaj ntim khoom siv rau kev ua haujlwm siab - qhov kub thiab txias, melting hlau, qauv kev zom, thiab tshuaj xyuas cov khoom muaj qhov tseeb. Feem ntau ua los ntawm siab -purity hluavtaws graphite, cov khoom no muaj cov thermal conductivity, zoo kawg li tiv thaiv thermal shock, thiab huab cua inertness, uas zoo tiv thaiv cov qauv paug thaum tshav kub kub heev. Lawv ua lub luag haujlwm tseem ceeb hauv ntau yam kev siv tshuaj ntsuam xyuas, xws li inert gas fusion rau oxygen, nitrogen, thiab hydrogen (O / N / H) kev txiav txim siab, X-ray fluorescence (XRF) iav hlaws npaj, thiab ntub acid digestion.
Cov txiaj ntsig ntawm Graphite cov khoom siv tshuaj ntsuam xyuas
Zoo heev thermal conductivity,
Graphite lub siab thermal conductivity ua rau cov cua kub ceev thiab zoo ib yam ntawm cov qauv, txo cov sij hawm melting thiab ua kom cov txiaj ntsig rov ua dua.
Thaum tshav kub kub Resistance
Nyob rau hauv lub tshuab nqus tsev los yog inert cua, graphite ntim tuaj yeem tiv taus qhov kub thiab txias tshaj 3000 degree, ua rau lawv zoo meej rau siab - ntsuas kub fusion.
Cov tshuaj chemical inertness zoo
High -purity graphite qhia tsis tshua muaj kev cuam tshuam nrog feem ntau cov hlau molten thiab reagents, zoo tiv thaiv tus ntoo khaub lig- paug thiab ua kom cov qauv purity.
Superior Thermal Shock Resistance
Nws cov txheej txheem txheej txheej tshwj xeeb muab kev ua haujlwm siab, tiv thaiv cov khoom los ntawm kev tawg thaum lub sijhawm cua sov thiab cua txias thiab muab lub neej ntev dua li cov hlab ntsha ceramic.
Graphite Crucibles
Siv raws li cov txheej txheem tshuaj tiv thaiv cov hlab ntsha hauv inert gas fusion (IGF) cov txheej txheem los txiav txim siab cov pa oxygen, nitrogen, thiab hydrogen cov ntsiab lus hauv cov hlau thiab cov khoom siv semiconductor nyob rau hauv huab cua kub.
Ua hauj lwm raws li tus nqi- zoo dua lwm txoj rau platinum crucibles rau melting hmoov kuaj nrog lithium borate flux ntawm qhov kub thiab txias, npaj cov iav tsis sib xws rau X-ray fluorescence tsom xam.
Graphite Tais
Feem ntau siv nrog graphite digestion apparatuses (feem ntau nrog los tiv thaiv -corrosion coatings) rau uniform batch cua sov thiab acid digestion ntawm ib puag ncig, av, los yog industrial kuaj nyob rau hauv heev corrosive tej yam kev mob.
Lawv qhov dav, tiaj tus geometry maximizes thaj chaw saum npoo, ua rau lawv zoo tagnrho rau kev thermal conduction ceev ceev, hnyav hnyav evaporation, los yog kev sim xav tau cov pa roj loj loj -cov khoom sib cuam tshuam, xws li kev sib txuas ntawm cov ntaub ntawv mesoporous.
Graphite Products vs Ordinary Materials khoom
Basic feature
| Graphite khoom | Ordinary Materials khoom | ||
| Thermal conductivity & cua kub ceev | Muaj cov thermal conductivity tshwj xeeb, hloov cov cua sov sai thiab sib npaug, uas txo cov sij hawm cua sov thiab txuag lub zog. | Ua raws li cov insulators uas tsis tshua muaj thermal conductivity, ua rau cov txheej txheem cua sov qeeb thiab muaj peev xwm kub gradients hauv lub nkoj. | |
| Thermal Shock Resistance | Feature superior tiv thaiv thermal shock, muaj peev xwm tiv taus cua kub ceev thiab cua txias mus (xws li, dej quenching) tsis tawg. | Muaj cov thermal poob siab tsis zoo thiab muaj qhov ua rau tawg tawg lossis tawg thaum raug kub hnyiab, ua rau muaj kev pheej hmoo ntawm cov qauv poob. | |
| Qhov kub siab tshaj plaws & kev ua haujlwm ib puag ncig | Muaj peev xwm tiv taus qhov kub thiab txias txog li 3000℃hauv lub tshuab nqus tsev lossis cua tsis zoo (xws li argon). Txawm li cas los xij, lawv yooj yim oxidize thiab hlawv hauv qhov qhib - huab cua ib puag ncig ntawm qhov kub siab tshaj 500℃. | Muaj cov ntsiab lus melting tsawg dua li graphite, tab sis lawv qhov txiaj ntsig tseem ceeb yog kev muaj peev xwm ua haujlwm tsis tu ncua hauv oxygen - nplua nuj / qhib - huab cua ib puag ncig ntawm qhov kub siab (xws li 1000℃-1700 degree) yam tsis muaj oxidizing. | |
| Chemical Inertness & Contamination Risk | Ua kom muaj tshuaj lom neeg zoo heev rau feem ntau cov hlau molten. Cov melts tsis ntub cov phab ntsa, tshem tawm cov kev pheej hmoo ntawm cov kab impurities leaching rau hauv cov qauv thiab ua rau spectral cuam tshuam. | Cov thawv ntim hlau txheem (xws li hlau lossis npib tsib xee) tuaj yeem yooj yim kis cov qauv nrog lawv tus kheej cov khoom; av nplaum cov hlab ntsha nyiam nqus cov impurities thiab nyuaj los ntxuav. | |
| Tus nqi -Kev ua tau zoo | Muab cov kev ua tau zoo tshaj plaws los yog tshaj ntawm cov hlau muaj txiaj ntsig, tab sis ntawm ib feem ntawm tus nqi ntawm cov khoom kim heev platinum alloy crucibles, ua rau lawv raug nqi ntau heev -cov khoom siv tau zoo rau siab - tsom xam qhov tseeb. | Porcelain crucibles pheej yig tab sis tsis yooj yim thiab luv luv - nyob; Precious hlau crucibles ua tau zoo tab sis yog cov khoom kim heev kev nqis peev uas yuav tsum tau saib xyuas nruj. |
Peb tau zoo-paub tias yog ib qho ntawm cov khoom lag luam graphite rau tshuaj ntsuam xyuas cov tuam ntxhab thiab cov muag khoom hauv Suav teb. Thov koj xav tias dawb mus yuav customized graphite khoom rau tshuaj ntsuam xyuas los ntawm peb lub hoobkas. Rau cov lus hais, hu rau peb tam sim no.