Cov iav muaj pes tsawg leeg yog ib qho tseem ceeb ntawm kev txiav txim siab qhov xwm ntawm iav, yog li ntawd, cov tshuaj muaj pes tsawg leeg ntawm iav lub raj mis thiab tuaj yeem ua tau raws li lub cev thiab tshuaj lom neeg kev ua tau zoo ntawm lub raj mis thiab tuaj yeem, tib lub sijhawm los ua ke melting, molding. thiab kev siv thev naus laus zis thiab lwm yam kev txiav txim siab, ntxiv rau, tab sis kuj xav txog kev txuag nqi thiab txo cov pa phem.
1. Cov khoom xyaw ntawm lub raj mis thiab hub
2. Hom lub raj mis iav
Raws li cov ntsiab lus sib txawv ntawm iav oxide, tuaj yeem muab faib ua sodium calcium iav Cheebtsam, siab calcium iav Cheebtsam, siab aluminium iav Cheebtsam, tab sis qhov kev faib tawm no tsis nruj, tsuas yog rau kev yooj yim ntawm kev tshawb fawb thiab kev nthuav dav.
Raws li qhov sib txawv USES ntawm lub raj mis thiab tuaj yeem iav, kuj tuaj yeem muab faib ua iav npias fwj iav cov khoom, cov iav fwj iav cov khoom, tuaj yeem iav cov khoom, cov tshuaj fwj iav thiab cov tshuaj reagents thiab cov khoom siv tshuaj raw lub raj mis iav. Txhawm rau txo tus nqi, cov khoom iav yuav tsum tau tsim raws li kev ua tau zoo ntawm cov ntawv thov sib txawv.
Hauv tsev ntau dua yog faib cov iav tivthaiv hom raws li tonal. Kev lig kev cai, nws tau muab faib ua cov khoom siv siab dawb (Fe2O3 <0.06%), cov khoom siv ci (cov khoom siv dav dav), cov khoom siv dawb ib nrab (qingqing khoom Fe2O3≤0.5%), cov khoom siv xim, cov khoom siv mis nyuj dawb. Cov khoom siv siab dawb feem ntau yog siv rau lub raj mis zoo thiab lub raj mis kom zoo nkauj. Cov khoom siv semi-dawb yog siv rau cov kaus poom thiab lub raj mis, uas muaj qee qhov nyiaj ntawm Fez O 3, feem ntau yog siv los nqus ultraviolet rays. Nws muaj Fe2O: <0.5%, thiab ultraviolet ray txwv tsis pub dhau 320nm. Lub raj mis npias yog ntsuab lossis amber, thiab qhov txwv tsis pub nqus yog li 450nm.
Post lub sij hawm: May-15-2020