Vim li cas thiaj xaiv Niobium crucible?

Niobium yog qhov grey dawb refractory hlau nrog lub siab muaj kwv yees li 2468℃los nyob ruaj khov ntawm qhov kub thiab tsis yooj yim yaj. Nyob rau tib lub sijhawm, Niobium muaj zoo corrosion tsis kam thiab muaj zog tsis kam rau ntau cov kua qaub thiab cov hauv paus, uas tuaj yeem tiv thaiv cov tshuaj lom los ntawm kev siv.
Muaj ntau yam tshwj xeeb rau Niobium crucibles, nrog diameters feem ntau yog xws li 1000 hli txog 500 hli thiab qhov siab txij li 1000mm. Cov phab ntsa tuab kuj tseem tuaj yeem hloov kho nyob rau qee yam raws li cov tseev kom muaj. Ib qho ntxiv, Niobium crucibles ntawm cov duab sib txawv thiab ntau thiab tsawg tuaj yeem kho tau raws li cov neeg siv khoom tshwj xeeb kom tau raws li ntau yam kev siv tshwj xeeb.
Qhov saum npoo ntawm niobium crucible feem ntau yog cov txheej txheem zoo thiab polished, ua rau muaj qhov chaw du. Qhov no tsis tsuas yog pab txhawb cov pouring thiab tu cov ntaub ntawv, tab sis kuj txo cov nplaum ntawm phab ntsa, tsis txhob muaj paug. Nyob rau tib lub sijhawm, Niobium muaj cov thermal zoo condality, uas tuaj yeem ua kom sov cov ntaub ntawv hauv Crucible, ua kom muaj kev ruaj khov ntawm kev sim lossis cov txheej txheem ntau lawm.
Hauv chav kuaj, niobium crucibles feem ntau siv rau high {{0} kev sim tshuaj, tshwj xeeb yog cov kev sim kub, tshwj xeeb yog cov kev sim kom tsis txhob muaj kev paug. Hauv kev lag luam metallurgical, nws tuaj yeem siv rau yaj siab - kub alloys tsis muaj hlau, kom cov khoom siv hlau, kom cov khoom siv hlau. Hauv kev lag luam hluav taws xob, Niobium crucibles tuaj yeem siv rau cov txheej txheem hluav taws xob melting, pab raws li cov khoom siv kub thiab muab cov khoom siv hluav taws xob siab thiab cov tshuab hluav taws xob zoo.