Kev tsim qauv ntawm graphite cua sov pas nrig hauv lub tshuab nqus tsev vacuum

Kev tsim qauv ntawm graphite cua sov pas nrig hauv lub tshuab nqus tsev vacuum

Lub tshuab nqus tsev vacuumgraphite pas nrigtseem hu ua lub tshuab nqus tsev rauv graphite cua sov pas nrig. Thaum ntxov, tib neeg hloov graphite rau carbon, yog li nws yog hu uacarbon rod. Cov khoom siv raw ntawm graphite carbon pas nrig yog graphite, uas yog hu ua nplaum molding. Nws tuaj yeem ua rau cov khoom siv graphite ntawm ntau yam duab, suav nrog graphite puag ncig pas nrig. Vim cov yam ntxwv ntawm graphite, nws muaj cov yam ntxwv zoo xws liconductivity, lubrication, kub tsis kamthiab lwm yam. Yog li ntawd, graphite carbon pas nrig kuj muajconductivity zoo heev, thermal conduction, lubrication,kub tsis kamthiab lwm yam khoom. Cov xwm txheej yav tom ntej yog tias cov khoom ntawm graphite tsis hloov. Yog li ntawd, kev tsim thiab muab khoom ntawm graphite rods txawv, thiab cov yam ntxwv ua haujlwm ntawm graphite rods tsim yuav txawv. Yog li yuav ua li cas thiaj paub qhov txawv? Cov khoom tsim graphite yog ncaj qha ua los ntawm graphite hmoov thiab nplaum, los yog ua ntej ua rau cov ntaub ntawv loj square, uas tau ua tiav los ntawm lub tshuab raws li cov duab kos lossis cov khoom zoo.
Muaj ntau qhov sib txawv thiab cov yam ntxwv ntawm cov graphite round pas nrig ua los ntawm thawj txoj kev thiab graphite round pas nrig ua los ntawm txoj kev thib ob. Vim tsis txaus siab thaum extrusion, lubextruded graphite pas nrigNrog graphite hmoov thiab nplaum yuav muag muag heev, nrog cov huab cua tsis zoo thiab cov huab cua loj (pores loj). Plua plav yuav poob rau hauv lub xeev ntuj, thiab nws yuav tawg thaum ntub nrog cawv. Nyob rau tib lub sijhawm, vim muaj ntau cov nplaum nplaum, cov khoom siv hluav taws xob, kev siv hluav taws xob thiab lubrication ntawm graphite pas nrig yuav raug txo kom tsawg, Qhov laj thawj yog yooj yim heev. Graphite yog cov khoom siv hluav taws xob thiab cov nplaum yog ib qhocov khoom siv insulating, uas yog khi kom txo tau cov conductivity ntawm graphite pas nrig. Tus qauv lub npe rau qhov graphite carbon pas nrig yog carbon arc cua gouging carbon pas nrig. Nws yog siv los txiav hauv qhov chaw tsim khoom. Qhov saum npoo yuav tsum tau plated nrog ib txheej ntawm tooj liab kom tsis txhob ya raws thiab ua hluav taws xob. Yog li ntawd, cov pa roj carbon monoxide hom no kuj muaj qhov tshwj xeeb uas txoj kab uas hla yuav tsawg dua 0.1-0.2 hli cim, vim tias qhov saum npoo yuav cia li ncav cuag lub cim txoj kab uas hla thaum nws yog plated nrog 10% hlau.
Txawm hais tias txoj kev thib ob kuj yog ua los ntawm graphite hmoov thiab nplaum, nws tseem ceeb heev rau nws cov txheej txheem. Ua ntej, graphite hmoov thiab nplaum yog siv los ua kom lojgraphite cov ntaub ntawvnyob rau hauv siab siab, thiab cesimpregnatedlos ntawm high-temperature roasting (evaporation thiab volatilization ntawm cov nplaum). Nyob rau hauv txoj kev no, yuav luag tsis muaj nplaum nyob rau hauv graphite tom qab rov impregnation roasting. Qhov txheej txheem impregnation roasting no yog qhov tseem ceeb heev. Qhov txo qis graphite tom qab impregnation roasting muaj cov yam ntxwv ntawm graphite nws tus kheej thiab muaj tag nrho cov haujlwm thiab cov yam ntxwv ntawm graphite. Vim hais tias xws li graphite muaj ntau dua purity, nws kuj hu uahigh-purity graphite, thiab cov graphite pas nrig kuj hu ua high-purity graphite pas nrig.