Graphite crucible yog ib qho khoom siv siab heev -kub resistant thawv, uas yog dav siv nyob rau hauv metallurgy, tshuaj lom neeg kev lag luam, electronics thiab lwm yam lag luam. Qhov zoo thiab kev pabcuam lub neej ntawm graphite crucibles ncaj qha cuam tshuam rau kev tsim khoom thiab cov khoom zoo. Yog li ntawd, nws yog ib qho tseem ceeb heev kom khaws cov graphite crucible kom raug.
Cov yam ntxwv ntawm graphite crucibles
Graphite crucibles muaj cov khoom hauv qab no:
Kub kub tsis kam: Graphite muaj qhov melting point txog li 3500 degree, yog li graphite crucibles tuaj yeem tiv taus qhov kub thiab txias.
Cov thermal conductivity zoo: Cov thermal conductivity ntawm graphite yog 100 npaug ntawm cov hlau, yog li cov graphite crucible tuaj yeem ua kom sov sib npaug thiab txo cov cua sov.
Corrosion tsis kam: Graphite muaj cov tshuaj lom neeg ruaj khov thiab tuaj yeem tiv taus corrosive media xws li acids thiab alkalis.
Yuav ua li cas khaws graphite crucibles
Yuav kom ncua lub neej kev pab cuam ntawm graphite crucibles, cov hauv qab no preservation txoj kev yuav tsum tau muab sau tseg:
Kev khaws cia qhuav: Qhov saum npoo ntawm graphite crucible muaj txheej glaze uas tiv thaiv nws los ntawm oxidation thiab corrosion. Yog tias cov graphite crucible ntub dej, txheej glaze yuav poob, ua rau lub crucible oxidize thiab corrode. Yog li ntawd, graphite crucibles yuav tsum muab cia rau hauv qhov chaw qhuav thiab kaw nrog ib lub hnab yas los yog oiled ntawv.
Kev zam kev sib tsoo: Graphite crucibles tsis yooj yim txawm tias lawv lub zog siab. Nyob rau hauv tus txheej txheem ntawm kev tuav thiab siv, yuav tsum tau them sai sai rau kev tuav nrog kev saib xyuas kom tsis txhob muaj kev sib tsoo thiab poob.
Kev siv ncaj ncees: Thaum siv graphite crucibles, cov hauv qab no yuav tsum tau sau tseg:
Nws yuav tsum tau preheated ua ntej siv kom lub crucible maj warms mus rau qhov xav tau kub.
Kev saib xyuas yuav tsum tau them rau qhov sib xws thaum pub mis, thiab cov cua sov hauv zos yuav tsum tsis txhob ua nruj dhau.
Thaum melting hlau, qhov kub thiab txias yuav tsum tau tswj kom tsis txhob overheating.
Nws yuav tsum tau muab ntxuav kom huv si hauv lub sijhawm tom qab siv los tiv thaiv cov khoom seem ntawm corroding lub crucible.