Tanthauzo la kupanga zitsulo: Chotsani zonyansa mu chitsulo cha nkhumba ndi zidutswa za oxidation ndikuwonjezera kuchuluka koyenera kwa aloyi kuti ikhale chitsulo chokhala ndi mphamvu zambiri, zolimba kapena zinthu zina zapadera.Njirayi imatchedwa "steelmaking".
Kwa chitsulo cha carbon alloys ndi carbon content ≤ 2.0%, tanthauzo la 2.0% C mu chithunzi chachitsulo cha carbon.Kutentha kwakukulu: austenite, ntchito yabwino yotentha yogwira ntchito;Kutentha kwabwinobwino: makamaka pearlite.
Chifukwa chiyani kupanga zitsulo: chitsulo cha nkhumba sichingagwiritsidwe ntchito kwambiri.Mkulu wa carbon: palibe austenite pa kutentha kwakukulu;Kusagwira bwino ntchito: kolimba komanso kolimba, kulimba kosalimba, kusagwira bwino ntchito kuwotcherera, osatha kukonza;Zonyansa zambiri: zochulukirapo za S, P ndi inclusions.
Zinthu wamba muzitsulo: zinthu zisanu: C, Mn, s, P ndi Si (zofunika).Zinthu zina: V, Cr, Ni, Ti, Cu, etc. (malinga ndi kalasi yachitsulo).Zifukwa zomwe zilipo: ① kuchepetsa ndondomeko: s ndi P sangathe kuchotsedwa kwathunthu;② Zotsalira zakuthupi: Zotsalira za Cu, Zn;③ Katundu wowongolera: Mn amathandizira mphamvu ndipo Al amayenga mbewu.Zomwe zili muzinthu: ① Zofunikira zapadziko lonse: GB;② Mulingo wabizinesi: wotsimikizika ndi kampani;③ Miyezo ina yadziko: swrch82b (Japan).
Ntchito yayikulu yopanga zitsulo: ntchito yayikulu yopanga zitsulo ndikuyenga chitsulo chosungunuka ndi chitsulo chosungunula kukhala chitsulo chokhala ndi mankhwala ofunikira, ndikupangitsa kuti ikhale ndi zinthu zina zakuthupi ndi zamakina.Ntchito yayikulu ikufotokozedwa mwachidule monga "kuchotsa zinayi, kuchotsedwa kuwiri ndi kukonzanso kuwiri".
4. Decarbonization, desulfurization, dephosphorization ndi deoxidation;
Kuchotsa kuwiri: kuchotsa mpweya woipa ndi zonyansa;
Awiri kusintha: kusintha madzi zitsulo kutentha ndi aloyi zikuchokera.
Nthawi yotumiza: Apr-26-2022