Feem ntau, cov ntsiab lus hauv qab no yuav tsum tau ua thaum kuaj xyuas lub graphite crucible ua ntej siv:
1. Ua ntej, xyuas cov graphite crucible rau cov kab nrib pleb ua ntej siv. Yog tias tsis muaj kab nrib pleb, ua kom sov lub graphite crucible kom siab tshaj 600℃kom nws qhuav kom huv si.
2. Yuav tsum tsis txhob muaj dej nyob ib ncig ntawm lub qhov cub lossis hauv lub qhov taub ntawm lub qhov cub, thiab tsis muaj cov khoom tsis sib xws yuav tsum tau muab tso rau ze ntawm lub graphite crucible.
3. Ua tib zoo xyuas cov nqi hluav taws xob rau cov khoom tawg. Cov nqi hluav taws xob yuav tsum tau preheated thiab khaws cia qhuav, thiab ntxiv rau graphite crucible maj mam.
Nws yog ib qho tseem ceeb kom ua raws li cov ntsiab lus saum toj no ua ntej siv graphite crucible; txwv tsis pub, muaj kev pheej hmoo siab ntawm graphite crucible tawg thaum siv.
Lub hom phiaj tseem ceeb ntawm graphite crucible yog ua kom sov cov ntaub ntawv sim. Graphite crucibles feem ntau yog siv los ua kom sov cov ntaub ntawv hauv kev sim. Lawv tuaj nyob rau hauv ntau qhov ntau thiab tsawg, thiab qhov tsim nyog loj yuav tsum raug xaiv raws li qhov ntau thiab cov khoom siv los ua kom sov thiab nws cov thermal expansion. Feem ntau, thaum siv lub graphite crucible, yuav tsum tau saib xyuas kom tsis txhob sau cov crucible nrog cov khoom uas raug cua sov, vim qhov no yog qhov txaus ntshai heev. Nws tuaj yeem yooj yim ua rau muaj kev sib tsoo thiab txo qis lub neej ntawm graphite crucible. Tsis tas li ntawd, nws yog ib qho tseem ceeb kom nco ntsoov tias crucibles feem ntau ncav cuag qhov kub ntawm plaub puas lossis tsib puas degrees Celsius. Nyob rau ntawm qhov kub thiab txias, graphite crucible yuav tsum tsis txhob tuav carelessly los yog kov nrog tes liab qab, vim qhov no yog heev txaus ntshai.
1. Graphite crucibles yuav tsum muaj siab heev refractory. Yog li ntawd, lub zog refractory ntawm cov ntaub ntawv raw siv los ua cov graphite crucible yuav tsum tau ua ntej kom muaj kev nyab xeeb siv.
2. Graphite crucibles feem ntau siv nyob rau hauv ntau yam tshuaj smelting txheej txheem uas muaj corrosive heev. Yog li ntawd, cov tshuaj stability ntawm graphite crucible kuj tseem ceeb heev kom txo tau corrosion.
3. Lub hardness thiab toughness ntawm graphite crucible kuj yog ib qho tseem ceeb uas yuav tsum tau xav txog kom tsis txhob nkig tawg thaum siv.
Cov saum toj no yog cov txheej txheem xaiv cov khoom uas yuav tsum tau saws thaum tsim graphite crucibles. Tsuas yog los ntawm kev xaiv cov ntaub ntawv raws li cov qauv saum toj no tuaj yeem siv graphite crucible tag nrho nws cov kev ua tau zoo.