Cov txheej txheem tsim cov pa roj carbon-carbon crucible feem ntau suav nrog cov kauj ruam hauv qab no:
Kev npaj cov khoom: Cov khoom tseem ceeb ntawm cov pa roj carbon -carbon crucible yog graphite, uas tuaj yeem siv rau hauv daim ntawv ntawm graphite blocks lossis graphite hmoov. Tsis tas li ntawd, yuav tsum muaj ib lub binder. Feem ntau siv binders yog resins, polyimides, silicones, thiab lwm yam.
Graphite thiab binder mixing: Graphite thiab binder yog sib xyaw hauv ib qho kev faib ua feem raws li qhov loj thiab cov duab ntawm qhov xav tau crucible. Thaum lub sij hawm sib tov, graphite blocks los yog graphite hmoov yog maj mam ntxiv rau hauv cov ntaub ntawv kom txog thaum sib tov sib xyaw. Lub tshuab ntxhua khaub ncaws lossis lub tshuab ntxhua khaub ncaws tuaj yeem siv los pab sib tov.
Casting pwm: Muab cov graphite sib xyaw slurry rau hauv pre-npaj pwm, kom ntseeg tau tias tag nrho cov pwm puv puv. Thaum lub sij hawm pouring txheej txheem, ib tug vibrator yuav siv tau los co cov pwm kom tshem tawm npuas thiab ua rau kom qhov ceev ntawm cov graphite hais.
Kev kho cov pa roj carbonization: Cov pwm cam tau muab tso rau hauv qhov cub carbonization rau kev kho carbonization. Carbonization yog cov txheej txheem ntawm kev hloov cov organic teeb meem hauv cov ntaub ntawv rau hauv cov pa roj carbon monoxide thiab sib txuas nrog graphite hais. Cov kauj ruam no yuav tsum tau maj mam nce qhov kub thiab txias, feem ntau pib ntawm chav tsev kub thiab tsis tu ncua cua sov kom siab tshaj 1500 degree. Thaum lub sij hawm cov txheej txheem carbonization, nws yog ib qho tseem ceeb los tswj tus nqi carbonization thiab kub faib kom paub meej cov qauv thiab kev ua tau zoo ntawm crucible.
Kev kho kub siab: Tom qab kev kho carbonization, lub crucible txuas ntxiv mus rau qhov kub siab, feem ntau yog siab tshaj 2500 degree. Kev kho kub kub pab txhim kho thermal stability, oxidation kuj thiab refractory zog ntawm lub crucible.
Cov txheej txheem rwb thaiv tsev: Cov pa roj carbon -carbon crucible tom qab kev kho kub kub yog raug rau kev kho rwb thaiv tsev los txhim kho cov thermal conductivity thiab thermal rwb thaiv tsev ntawm lub crucible. Qhov no tuaj yeem ua tiav los ntawm txheej txheej ntawm graphite hmoov, graphite ntawv, ceramic fiber los yog lwm yam ntaub ntawv rwb thaiv tsev nyob rau sab nraud ntawm lub crucible.
Kev kho deg: Qhov saum npoo ntawm lub crucible yog yuav tsum tau trimming thiab polishing kom ntseeg tau tias qhov saum npoo ntawm lub crucible yog du thiab tiaj tus, thiab tshem tawm cov burrs thiab lwm yam tsis xws luag.