Crucibles tuaj nyob rau hauv ntau cov qauv thiab cov kev qhia tshwj xeeb, muab ntau cov ntawv thov tsis muaj kev txwv los ntawm cov nplai ntau lawm, pob loj, lossis ntau yam ntawm cov khoom melting. Qhov kev hloov pauv no ua kom muaj zog hloov kho tau thiab lav txog cov kev coj dawb huv ntawm cov ntaub ntawv raug melted.
Cov Lus Qhia Siv:
Tom qab siv, tso tus ntoo khaub lig nyob hauv qhov chaw qhuav thiab tsis txhob muaj dej nag. Ua ntej siv nws dua, maj mam ua kom sov lub crucible rau 500 degrees Celsius.
Thaum ntxiv cov ntaub ntawv rau cov crucible, zam kev ua kom tiv thaiv cov hlau los ntawm kev nthuav dav thiab ua rau cov ntoo khaub lig vim yog cov khoom plig thermal.
Thaum muab cov hlau molten ntawm cov crucible los ntawm Crucible, siv rab diav thaum twg ua tau thiab txo qhov siv ntawm kev siv nplaig. Yog hais tias tus nplaig lossis lwm yam cuab yeej yog tsim nyog, xyuas kom lawv phim cov duab ntawm Crucible los tiv thaiv kev sib zog ntau dhau thiab txuas ntxiv nws lifespan.
Lub neej ntawm tus crucible yog cuam tshuam los ntawm nws cov kev siv. Zam kev ncaj qha rau cov nplaim taws uas ncaj qha rau ntawm tus ntoo khaub zig, vim qhov no tuaj yeem ua rau cov khoom tawg ntawm cov crucible.
Cov ntaub ntawv crucible tsim: Cov ntaub ntawv ntau lawm tuaj yeem muab cov ntsiab lus ntawm peb lub ntsiab: crystalline graphite, yas refractory av nplaum, thiab calcined tawv kaolin zoo li cov khoom siv. Txij li xyoo 2008, kub tiv thaiv cov khoom siv hluavtaws xws li silicon carrum, thiab silicon hlau kuj tau siv ua cov moj khaum rau cov cribibles. Cov khoom siv no tau txhim kho qhov zoo, ntom ntom, thiab lub zog kho tshuab muaj zog ntawm cov khoom crucible.
Cov ntawv thov: crucibles feem ntau siv rau:
Kev hlawv cov khoom siv
Evaporation, concentration, lossis crystallization ntawm cov kev daws teeb meem (thaum cov tais diav tsis muaj, crucibles tuaj yeem siv tau hloov)
Cov Lus Siv Kev Siv Tseem Ceeb:
Crucibles tuaj yeem ua kom sov ncaj qha, tab sis lawv yuav tsum tsis txhob txias sai dua tom qab cua sov. Siv cov ceg ntoo ci ntsa iab los daws lawv thaum lawv kub.
Tso lub crucible ntawm ib daim duab peb sab av thaum cua sov.
Do cov ntsiab lus thaum evaporating thiab siv cov khoom siv hluav taws xob uas muaj nyob ze-ua kom qhuav.
Ntawm crucailes: crucibles tuaj yeem muab faib kom dav ua peb pawg: crucite cruciles, av nplaum crucailes, thiab hlau crucailes. Nyob rau hauv graphite crucable qeb, muaj cov qauv graphtacle crucles, qhov tshwj xeeb ntawm graphbite crucite, thiab high-purity graphibles. Txhua hom ntawm crucible txawv hauv kev ua tau zoo, kev siv, thiab kev ua haujlwm, ua rau kev hloov ua haujlwm hauv cov ntaub ntawv raw, cov txheej txheem tsim khoom, thiab cov khoom lag luam tshwj xeeb.
Cov lus qhia tshwj xeeb thiab naj npawb: Cov ntsiab lus Crucible (qhov ntau thiab tsawg) feem ntau yog txhais los ntawm cov lej. Piv txwv li, ib tus # 1 Crucible tuaj yeem tuav ib lub ntim ntawm 1000g ntawm tooj dag thiab hnyav 180g. Lub peev xwm melting rau cov sib txawv ntawm cov hlau lossis alloys tuaj yeem suav los ntawm kev sib npaug ntawm cov Crucible lub ntim-rau-hnyav piv txwv los ntawm cov coefficient lossis alloy coefficient.
Cov Kev Siv Tshwj Xeeb: Nickel cruci yog qhov haum rau melting kuaj muaj Naoh, NA2O2, Nahco3, Nahaxco3, thiab Kno3 hauv Alkaline cov kuab tshuaj. Txawm li cas los xij, lawv tsis haum rau melting kuaj muaj tiss4, K2S2O7, lossis lwm cov kuab tshuaj acidic, thiab lwm yam kua qaub uas muaj cov txiv neej.
Hauv kev xaus, cruciBles muaj ntau cov kev siv hauv ntau qhov kev lag luam, lawv txoj kev ua kom tau zoo, lawv txoj kev ua kom ntev thiab ua tau zoo.
Lub sij hawm Post: Lub Yim Hli 01-2023