Lub luag haujlwm tseem ceeb ntawm steelmaking yog los kho cov ntsiab lus ntawm cov pa roj carbon thiab alloy cov ntsiab lus hauv cov hlau kom tau raws li qhov xav tau ntawm cov hlau kom txo tau cov ntsiab lus ntawm P, S, H, O, N thiab lwm yam impurities hauv qab qhov tso cai. txwv.
Cov txheej txheem steelmaking yog qhov tseem ceeb ntawm cov txheej txheem oxidation. Cov pa roj carbon ntau dhau ntawm tus nqi yog oxidized, hlawv rau hauv CO roj thiab khiav tawm, thiab lwm yam Si, P, Mn, thiab lwm yam nkag mus rau hauv slag tom qab oxidation. Ntu S nkag mus rau hauv slag, thiab qhov S tsim SO2 rau kev tso tawm. Thaum muaj pes tsawg leeg thiab kub ntawm cov hlau molten ua tau raws li cov txheej txheem, cov hlau tuaj yeem tapping. Txhawm rau kom tshem tawm cov pa ntau dhau hauv cov hlau thiab kho cov tshuaj muaj pes tsawg leeg, deoxidizer thiab ferroalloy lossis alloy ntsiab tuaj yeem ntxiv.
