Nyob rau hauv kev cuam tshuam ntawm tus nqi thoob ntiaj teb ntawm cov hlau ore, tsis ntev los no tus nqi hlau seem nce siab thiab tus nqi hlau npua pib nce siab. Tsis tas li ntawd, kev tiv thaiv ib puag ncig cuam tshuam rau qhov zoo carburizing agent tsis muaj khoom. Tom qab ntawd tus nqi hlau casting yuav nce siab rau lub hlis tom ntej. Nov yog cov ntsiab lus hauv qab no:
1. Hlau npua thiab coke
Nyob rau hauv Shandong, Shanxi, Jiangsu, Hebei, Henan thiab lwm thaj chaw txawm hais tias cov hlau xa khoom me me, tab sis muaj ob peb lub tuam txhab tsim khoom tsawg heev yog li cov khoom muag tsis ntau. Kev nce ntawm kev ua lag luam hlau, coke thiab ore nqi cuam tshuam rau cov nqi hlau tau nce, lub lim tiam dhau los npua hlau nce 1% - 3%, coke nce 2% thiab ob qho tib si cov khoom muag txo qis. Lub caij ntuj sov fais fab siab tshaj plaws tuaj txog, kev thov thiab tus nqi ntawm coke yuav txuas ntxiv mus loj hlob. Tab sis vim yog qhov kub siab thiab lub caij tawm los, cov hlau thiab cov chaw tsim khoom 'kev thov rau npua hlau tsis zoo dua, Nws xav tias tus nqi yuav tsis nce ntau dhau hauv lub sijhawm luv luv.
2 Tus neeg sawv cev pov tseg thiab carburizing
Lub khob ntawm lub chaw ua hlau raug tshem tawm vim yog teeb meem ib puag ncig, ntau lub tuam txhab tau pib hloov pauv qhov zaus ntawm cov txheej txheem hluav taws xob rauv taws xob, siv cov hlau seem pheej yig thiab rov ua dua tshiab thiab cov neeg sawv cev carburizing los tsim cov hlau ductile lossis grey hlau. Cov neeg sawv cev carburizing graphite zoo yog qhov tseem ceeb, tab sis thawj ib nrab xyoo kev tiv thaiv ib puag ncig ua rau ntau lub Hoobkas kaw thiab cov neeg sawv cev carburizing tsis muaj khoom. Ntxiv mus, tus nqi seem nce siab yog li cov nqi ntawm cov Hoobkas nce siab thiab cov kav hlau casting & cov khoom siv kuj yuav nce siab thiab.
Lub sijhawm tshaj tawm: Lub Peb Hlis-07-2017
