Raws li kev cuam tshuam thoob ntiaj teb tus nqi ntawm cov hlau ore, tsis ntev los no cov khoom seem hlau tau nce siab thiab tus nqi npua hlau pib nce. Tsis tas li kev tiv thaiv ib puag ncig cuam tshuam tias cov neeg ua haujlwm zoo carburizing yog tawm ntawm cov khoom lag luam. Ces casting hlau nqi yuav nce nyob rau lub hli tom ntej. Nov yog cov ntsiab lus hauv qab no:
1 Pig hlau thiab coke
Hauv Shandong, Shanxi, Jiangsu, Hebei, Henan thiab lwm thaj chaw txawm hais tias cov hlau xa khoom me me, tab sis muaj tsawg tus neeg tsim khoom hauv kev tsim khoom yog li cov khoom muag tsis ntau. Kev nce ntawm steel kev lag luam, coke thiab ore nqi cuam tshuam uas cov nqi hlau tau nce, lub lim tiam dhau los npua hlau tau nce 1% - 3%, coke nce 2% thiab ob qho tib si cov khoom muag txo. Lub caij ntuj sov fais fab ncov tuaj, kev thov thiab tus nqi ntawm coke yuav loj hlob ntxiv. Tab sis vim qhov kub thiab txias ntawm lub caij tawm tuaj, steel thiab foundries 'thov rau npua hlau tsis zoo dua, Nws xav tias tus nqi nce tsis ntau dhau rau lub sijhawm luv.
2 Cov khoom seem thiab carburizing tus neeg sawv cev
Lub cupola ntawm foundry raug tshem tawm vim yog ib puag ncig teeb meem, ntau lub tuam txhab pib hloov zaus hluav taws xob rauv melting txheej txheem, siv tus nqi qis thiab rov siv dua cov hlau thiab carburizing tus neeg sawv cev los tsim cov hlau hlau lossis grey hlau. Fine graphite carburizing tus neeg saib xyuas yog tus yuam sij, tab sis thawj ib nrab xyoo kev tiv thaiv ib puag ncig coj mus rau ntau lub Hoobkas kaw thiab tus neeg saib xyuas carburizing yuav tawm ntawm cov khoom lag luam. Dab tsi ntxiv, cov nqi seem nce siab yog li cov chaw tsim khoom 'tus nqi nce ntxiv thiab cov kav hlau castings & fittings tus nqi yuav nce ib yam nkaus.
Post lub sij hawm: Mar-07-2017
