Nyob rau hauv xyoo tsis ntev los no, cov thev naus laus zis ntau lawm ntawm kev ua haujlwmGraphite shreglestau ua kev kawm tseem ceeb. Tsis yog tsuas yog lawv tau ntes tau nrog cov crucailes txawv teb, tab sis qee kis tau ntau tshaj lawv. Los ntawm kev siv cov txuj ci tshiab thiab sourcing zoo cov ntaub ntawv raw, graphite crucibles tuaj yeem tam sim no cov xwm txheej nrog kev ua tsis tau zoo.
Lub ntsiab nta ntawm cov tshiab graphite cruciles yog tsis ntseeg tsim nyog sau cia. Ua ntej, lawv muaj siab thermal conductivity, tseem ceeb txo lub sijhawm melting, ua tsaug rau siv cov ntaub ntawv nyoos xws li graphite, uas muaj cov thermal zoo condal. Qhov nce hauv kev ua tau zoo tsis tsuas yog txuag sijhawm thiab lub zog, tab sis kuj tseem nce cov khoom lag luam nyob rau hauv kev lag luam.
Ib qho ntxiv, cov crucibles muaj cov cua sov zoo heev thiab tuaj yeem tiv thaiv kub txog 1200 txog 1600 ° C. Qhov kev ua tau zoo no ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau cov kev kub thiab ntau yam hlau pov tseg. Muaj peev xwm tiv thaiv cov huab cua sov uas tsis muaj kev cuam tshuam zoo yog kev ua si-hloov rau ntau cov txheej txheem kev muaj.
Ib qho ntawm cov khoom tshaj plaws ntawm cov cross grucibles yog lawv cov kev tiv thaiv corrosion zoo heev. Lawv pom tau zoo txawm txawm tias nyob rau hauv lub ntsej muag ntawm cov ntaub ntawv corrosive heev molten, kom paub txog kev ua haujlwm ntev thiab txhim kho. Qhov kev ua corrosion tsis kam nthuav tawm cov kev siv ntawm cov crucaibles, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj lom neeg thiab cov hlau metallgical kev lag luam.
Tsis tas li ntawd, nws zoo tshaj kub thermal tsis kam ua rau nws zoo dua rau cov khoom lag luam zoo sib xws. Graphite shrasically nyob rau hauv sai sai txias thiab cua sov mus los, ua rau lawv tsis raug kev tawg thiab tawg. Qhov kev siv hluav taws xob zoo tshaj plaws tsis yog txhim kho kev nyab xeeb tab sis kuj muab cov nqi tshwj xeeb txuag los ntawm kev txo qis kev hloov pauv.
Graphite cross yog siv dav hauv ntau yam kev lag luam vim lawv zoo heev thermal conductivity thiab kub tsis kam. Cov cruciles muaj qhov tsawg coefficient ntawm thermal expansion thiab tiv taus rau kev hloov pauv sai sai. Lawv tuaj yeem tiv thaiv cua kub ceev thiab txias uas tsis muaj kev sib txawv loj, ua kom muaj kev ua tau zoo thiab ntseeg tau.
Graphite cross muaj exemplary corrosion tsis kam rau acidic thiab alkaline daws teeb meem, ua rau lawv tseem ceeb hauv kev siv tshuaj thiab tshuaj siv tshuaj siv. Lawv cov tshuaj lom neeg zoo rau lawv cov tshuaj uas pom tau tias lawv cov kev ruaj khov thiab tuaj yeem ua kom nyab xeeb ntau yam tshuaj lom neeg.
Txoj kev sib xyaw ntawm graphite crucible yog ntuj flake graphite raws li cov khoom siv tseem ceeb. Nws yog tuav ua ke siv cov nplaum tshwj xeeb hu ua cov hluav taws kub hluav taws xob. Qhov no tshwj xeeb kev sib xyaw ua ke uas crucite cruciles tswj kev ncaj ncees hauv qab kev mob hnyav, muab cov txiaj ntsig zoo ib yam nyob hauv ntau qhov kev siv.
Lub adventically tsim cov teeb meem graphite tsis tsuas yog cim kev sib tsoo thev naus laus zis, tab sis kuj txhawb kev txhim kho ntawm kev lag luam hauv zos. Hauv zos tsim, muaj cov tawv nqaij zoo txo kev cia siab rau cov neeg muaj peev xwm muab cov nqi sib tw rau cov lag luam sib tw. Txoj kev txhim kho no txoj hauv kev rau ntau dua tus kheej kom txaus thiab ntxiv dag zog rau lub teb chaws cov toj roob hauv pes Industrain.
Hauv cov ntsiab lus, kev tsim kho hauv graphite crucite tau thawb nws mus rau cov khoom tshiab, surpassing cov khoom lag luam zoo sib xws hauv cov kev ua haujlwm ntawm kev ua tau zoo thiab kav ntev. Zoo heev thermal conductivity, zoo heev thaum tshav kub ua hauj, corrosion tsis kam thiab thermal poob siab tsis kam ua nws inventuable nyob rau hauv ntau hom kev lag luam. Nrog rau cov kev txhim kho no, cov kev lag luam hauv tsev tsim qauv tau ua cov kev txhawb nqa tseem ceeb rau lub teb chaws kev lag luam kev lag luam thiab kev vam khom tus kheej.
Lub Sijhawm Post: Kaum-08-2023