Graphite cruciblesyog ntau yam thiab cov cuab yeej tseem ceeb hauv ntau qhov kev lag luam xws li metallurgy, chemistry thiab ua hniav nyiaj hniav kub. Nws yog tsim los tiv taus qhov kub thiab txias thiab feem ntau yog siv los yaj, cam khwb cia thiab smelt ntau yam ntaub ntawv. Yog tias koj tshiab siv graphite crucibles, lossis tsuas yog xav ua kom tiav koj cov txheej txheem, phau ntawv qhia no yuav coj koj mus rau cov txheej txheem ib ntus, kom ntseeg tau tias koj tau npaj txhij thiab npaj kom tiav.
1. Xaiv qhov tsim nyog graphite crucible:
Xaiv txoj cai graphite crucible yog qhov tseem ceeb kom tau txais cov txiaj ntsig zoo tshaj plaws. Xav txog cov ntaub ntawv uas koj yuav siv thiab qhov ntsuas kub yuav tsum tau ua. Cov crucibles sib txawv yog tsim los tswj qhov kub thiab txias thiab cov khoom siv, xws li kub, nyiaj lossis txawm tias graphite. Nco ntsoov xaiv lub crucible zoo rau koj daim ntawv thov tshwj xeeb.
2. Npaj lub crucible:
Ua ntej koj pib siv koj cov graphite crucible, nws yog ib qho tseem ceeb uas yuav tau npaj kom zoo rau kev siv. Qhov no yog qhov tseem ceeb vim nws pab tshem tawm cov impurities thiab ua kom lub neej ntev ntawm lub crucible. Pib los ntawm maj mam ntxuav sab hauv ntawm lub crucible siv cov txhuam mos los yog daim ntaub kom tshem tawm cov khoom xoob. Tsis txhob siv cov khoom siv abrasive uas tuaj yeem khawb lossis ua kom puas graphite nto. Yaug lub crucible nrog dej huv thiab cia cua qhuav.
3. Siv crucible txheej:
Txhawm rau txuas ntxiv lub neej kev pabcuam ntawm koj cov graphite crucible thiab tiv thaiv nws sab hauv, nws raug nquahu kom siv cov txheej. Ib txheej refractory los yog sib tov ntawm graphite thiab borax tuaj yeem siv tau. Txhuam ib txheej txheej ntawm txheej txheej rau sab hauv ntawm lub crucible, xyuas kom nws npog tag nrho cheeb tsam. Cov txheej tiv thaiv no txo qhov kev pheej hmoo ntawm cov khoom molten reacting nrog graphite sab hauv ntawm lub crucible.
4. Preheat lub crucible:
Preheating koj graphite crucible yog qhov tseem ceeb los tiv thaiv thermal poob siab thiab kev puas tsuaj thaum lub sij hawm melting txheej txheem. Muab lub crucible tso rau hauv qhov cub lossis qhov cub thiab maj mam nce qhov kub ntawm nws qhov kev khiav hauj lwm ntau. Qhov cua sov maj mam tso cai rau lub crucible kom nthuav dav sib npaug, txo qhov kev pheej hmoo ntawm kev tawg. Nco ntsoov xa mus rau cov chaw tsim khoom cov lus qhia rau cov lus qhia tshwj xeeb preheating.
5. Melting nrog graphite crucible:
Thaum lub crucible npaj txhij, koj tuaj yeem pib melting cov khoom. Xyuas kom lub crucible muab tso rau hauv lub qhov cub kom ruaj ntseg kom ruaj ntseg thiab tiv thaiv txhua yam xwm txheej. Ua raws li cov lus qhia tshwj xeeb melting rau cov khoom koj siv (txawm yog hlau alloy, iav, lossis lwm yam khoom siv) kom ua tiav cov txiaj ntsig xav tau.
6. Crucible txij nkawm thiab kev nyab xeeb:
Kev saib xyuas kom zoo ntawm graphite crucibles yog qhov tseem ceeb rau kev ua haujlwm zoo thiab kev pabcuam lub neej. Ua tib zoo ntxuav txhua qhov seem lossis cov khoom seem tom qab siv txhua. Tsis txhob nthuav tawm lub crucible rau qhov hloov pauv kub ceev vim qhov no yuav ua rau thermal shock thiab puas. Tsis tas li ntawd, ib txwm muab kev nyab xeeb ua ntej thiab hnav cov iav tiv thaiv uas tsim nyog, suav nrog cov hnab looj tes tiv thaiv tshav kub thiab tsom iav, tiv thaiv koj tus kheej los ntawm kev phom sij.
Hauv cov ntsiab lus, kev npaj graphite crucible yuav tsum tau ua tib zoo xav thiab cov txheej txheem tsim nyog. Los ntawm kev xaiv txoj cai crucible, npaj lub crucible kom raug, thiab ua raws li cov txheej txheem melting pom zoo, koj tuaj yeem ua kom tiav thiab ua tau zoo. Nco ntsoov muab kev nyab xeeb ua ntej thiab tswj koj lub crucible tsis tu ncua kom nws lub neej ntev. Nrog rau cov kauj ruam no hauv siab, koj yuav npaj tau zoo los siv koj cov graphite crucible zoo thiab ua kom nws muaj peev xwm ua tau ntau yam kev siv.
Post lub sij hawm: Nov-24-2023