Raws li cov cuab yeej tseem ceeb hauv kev lag luam xws li hlau smelting thiab lwm yam kev siv kub,graphite cruciblesua lub luag haujlwm tseem ceeb hauv kev muaj thiab cua sov ntau yam hlau thiab alloys.Txawm li cas los xij, lawv lub neej kev pabcuam raug txwv, uas tuaj yeem ua rau tsis yooj yim thiab ua rau cov nuj nqis ntxiv rau cov neeg siv.Hauv tsab xov xwm no, peb yuav tshawb txog qee txoj hauv kev los ua kom lub neej ntev tshaj plawsgraphite cruciblesthiab ncua lawv cov durability.
Graphite cruciblesyog dav siv rau melting thiab casting txheej txheem, vim lawv zoo thermal conductivity, corrosion kuj, thiab refractory zog.Txawm li cas los xij, lawv lub neej ntev nyob ntawm ntau yam, xws li cov khoom siv raw, kev tsim khoom, kev ua haujlwm, thiab cov txheej txheem tu.Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xaiv cov crucibles zoo los ntawm cov neeg muag khoom txhim khu kev qha thiab ua raws li cov lus pom zoo rau lawv siv thiab saib xyuas.
Ib qho tseem ceeb uas cuam tshuam rau lub neej ntawm graphite crucibles yog cov txheej txheem cua sov thiab cua txias.Kev hloov pauv ntawm qhov kub thiab txias, tseem hu ua thermal shock, tuaj yeem ua rau tawg, tawg, lossis deformation ntawm crucibles, thaum kawg txo lawv txoj kev ua haujlwm ntev thiab ua haujlwm zoo.Txhawm rau tiv thaiv cov teeb meem no, nws raug nquahu kom maj mam thiab ua tib zoo preheat lub crucibles ua ntej ntxiv cov hlau lossis alloys thiab maj mam txias lawv tom qab cov txheej txheem tiav.
Lwm qhov tseem ceeb uas yuav tau xav txog yog hom hlau lossis hlau ua tiav.Qee cov hlau, xws li hlau, npib tsib xee, thiab cobalt, tuaj yeem cuam tshuam nrog graphite ntawm qhov kub thiab txias thiab daim ntawv carbides, uas tuaj yeem ua kom nrawm nrawm ntawm cov crucibles.Txhawm rau zam qhov no, nws raug nquahu kom siv cov txheej tiv thaiv los yog cov ntaub ntawv ntawm cov crucibles lossis xaiv cov qib tshwj xeeb graphite uas tiv taus cov tshuaj tiv thaiv.
Tsis tas li ntawd, kev saib xyuas kom raug thiab tu cov crucibles tseem yog qhov tseem ceeb hauv kev ua kom lawv lub neej ntev thiab tiv thaiv kev sib kis ntawm cov hlau lossis hlau.Nws raug nquahu kom npliag, txias, thiab ntxuav cov crucibles tom qab siv txhua yam siv cov cuab yeej tsim nyog thiab tshuaj kom tshem tawm cov khoom seem lossis impurities.Kev khaws cia ntawm cov crucibles nyob rau hauv qhov chaw qhuav thiab ruaj ntseg yog qhov tseem ceeb los tiv thaiv lub cev puas tsuaj los yog nqus dej noo.
Txhawm rau kom ua tiav, ua kom lub neej ntev ntawm graphite crucibles yuav tsum ua raws li cov kev coj ua kom raug thiab ceev faj.Qhov no suav nrog kev xaiv cov crucibles zoo, tuav lawv nrog kev saib xyuas, tswj cov txheej txheem cua sov thiab txias, tiv thaiv lawv los ntawm cov hlau reactive, thiab tsis tu ncua.Los ntawm kev ua li ntawd, cov neeg siv tuaj yeem txuag lub sijhawm, nyiaj txiag, thiab cov peev txheej thaum ua kom ntseeg tau zoo thiab txhim khu kev qha crucible.
Post lub sij hawm: May-15-2023