Graphite Crucibleyog cov cuab yeej siv dav hauv cov hlau smelting thiab cov ntawv thov kub. Lawv yog siv los ua kom sov cov hlau lossis lwm yam khoom siv rau qhov kub thiab txias rau melting, casting, thiab lwm yam ua haujlwm kub. Txawm li cas los xij, dhau sij hawm, ntau yam impurities thiab residues sau rau ntawm qhov chaw ntawm lub crucible, cuam tshuam nws cov kev ua tau zoo. Yog li ntawd, nkag siab yuav ua li cas ntxuav kom zoographite cruciblesNws yog ib qho tseem ceeb rau kev ncua lawv lub neej kev pab. Hauv tsab xov xwm no, peb yuav qhia cov kauj ruam tseem ceeb rau kev ntxuav graphite crucibles.
Vim li cas peb yuav tsum tau ntxuav cov graphite crucible?
Graphite crucibleskev khiav hauj lwm ntawm qhov kub thiab txias yog nquag adsorbing thiab nqus ntau yam impurities, nrog rau cov hlau seem, oxides, thiab lwm yam khoom tsis yog xim hlau. Cov impurities no tuaj yeem ua rau muaj paug rau ntawm qhov chaw ntawm lub crucible, txo nws cov thermal conductivity thiab thermal conductivity. Tsis tas li ntawd, cov impurities khaws cia kuj tuaj yeem ua rau thermal stress nyob rau hauv lub crucible, thaum kawg ua rau tawg los yog puas.
Yog li ntawd, tsis tu ncua tu ntawm graphite crucibles yog ib kauj ruam tseem ceeb ntawm kev tswj lawv cov kev ua tau zoo thiab txuas ntxiv lawv lub neej kev pab cuam.
Cov kauj ruam tseem ceeb rau kev ntxuav graphite crucibles
Cov hauv qab no yog cov kauj ruam tseem ceeb rau kev ntxuav graphite crucibles:
1. Kev ntsuas kev nyab xeeb:
Ua ntej ntxuav lub graphite crucible, thov xyuas kom meej tias cov kev ntsuas kev nyab xeeb tsim nyog raug coj mus. Qhov no suav nrog cov hnab looj tes tiv thaiv tshav kub thiab tsom iav los tiv thaiv kev raug mob.
2. Cua txias crucible:
Ua ntej ntxuav, xyuas kom meej tias cov graphite crucible tau txias tag. Kev ntxuav ntawm qhov kub thiab txias yuav ua rau kub poob siab thiab kev puas tsuaj rau lub crucible.
3. Tshem tawm cov residues:
Siv cov hlau scraper los yog pliers maj mam tshem tawm cov khoom seem ntawm qhov chaw crucible. Thov ua haujlwm nrog ceev faj kom tsis txhob khawb lub crucible.
4. Tshuaj ntxuav:
Rau qee qhov nyuaj kom tshem tawm cov av thiab cov seem, cov tshuaj ntxuav cov tshuaj tuaj yeem siv tau. Xaiv tus neeg saib xyuas tsim nyog rau graphite crucibles, xws li sodium hydroxide lossis potassium hydroxide tov, thiab ua raws li cov lus qhia rau kev siv cov tshuaj ntxuav. Feem ntau, tus neeg saib xyuas yog yaj hauv dej sov thiab lub crucible yog tsau rau hauv nws kom soften thiab tshem tawm cov av. Tom qab ua tiav, yaug lub crucible kom huv si nrog dej huv kom tsis txhob muaj tshuaj lom neeg seem ntawm qhov chaw.
5. Drying crucible:
Tom qab ntxuav thiab yaug, muab lub crucible tso rau hauv qhov cub kub lossis cua qhuav kom ntseeg tau tias nws qhuav tag. Tsis txhob siv cov cua kub ntse lossis cov txheej txheem txias kom tsis txhob muaj kev ntxhov siab thermal.
6. Txheeb xyuas qhov chaw ntawm lub crucible:
Tom qab ntxuav thiab ziab, ua tib zoo tshuaj xyuas qhov chaw ntawm lub crucible kom paub tseeb tias tsis muaj qhov seem lossis puas tsuaj. Yog tias tsim nyog, kev tu lossis kho ntxiv tuaj yeem ua tiav.
Kev ceev faj thiab cov lus qhia
Thaum ntxuav graphite crucibles, kuj tseem muaj qee qhov kev ceev faj thiab cov lus qhia tseem ceeb:
Tsis txhob siv cov tshuaj ntxuav cov kua qaub vim lawv yuav ua rau cov khoom siv graphite puas.
Tsis txhob siv cov txhuam hniav hlau los yog hlau txhuam los ntxuav lub crucible vim lawv yuav khawb qhov chaw.
Thaum siv cov tshuaj ntxuav tu, thov hnav cov cuab yeej tiv thaiv thiab xyuas kom meej tias kev ua haujlwm tau ua tiav hauv qhov chaw muaj cua zoo.
Tsis tu ncua ntxuav lub crucible kom tsis txhob muaj av thiab residue los ntawm accumulating mus rau ib theem uas nyuaj rau lis.
Raws li qhov xav tau ntawm cov txheej txheem ntau lawm, txheej txheej tiv thaiv lossis txhim kho corrosion kuj ntawm graphite crucibles tuaj yeem xaiv.
Csuav nrog
Kev tu cov graphite crucibles yog ib kauj ruam tseem ceeb hauv kev tswj lawv cov kev ua tau zoo thiab txuas ntxiv lawv lub neej kev pab cuam. Los ntawm kev tshem tawm cov av thiab cov khoom seem tsis tu ncua, nrog rau ua raws li cov kauj ruam tu kom tsim nyog, nws tuaj yeem ua kom ntseeg tau tias graphite crucibles txuas ntxiv ua haujlwm hauv cov ntawv thov kub. Hauv kev lag luam ntawm cov hlau smelting thiab high-temperature processing, tswj kev huv ntawm crucibles yog tus yuam sij kom ntseeg tau cov khoom zoo.
Post lub sij hawm: Oct-12-2023