Cov ntsiab lus tseem ceeb ntawm cov txheej txheem melting
1. Oxygen tshuab kom nrawm melting
Thaum lub sij hawm melting lub sij hawm, tshuab oxygen yog siv los ceev melting. Nyob rau hauv thawj theem, txiav yog txoj hauv kev tseem ceeb, thiab thaum tus nqi pib melted los ua ib lub pas dej molten, tshuab oxygen rau hauv cov hlau molten yog txoj kev tseem ceeb; Tshuab pa oxygen yog txheej txheem ntawm kev siv lub tshav kub ntawm lub hauv paus oxidation kom ceev lub melting ntawm lub cub tawg nqi, pib oxygen tshuab thaum cov khoom khoom tig liab (900 degree).
Thaum lub sij hawm melting, yuav luag tag nrho Si, AL, T, V, thiab lwm yam yog oxidized, Mn yog oxidized los ntawm 40-60%, thiab P yog oxidized los ntawm 40-50%; Thaum tshuab pa oxygen, C oxidizes 10-30% thiab Fe oxidizes 2-3%.
2. Slag ua thiab dephosphorization
Thaum cov nqi hluav taws xob melts mus rau 80%, npaj rau dephosphorization thiab kho cov slag uas zoo rau dephosphorization, nrog rau cov alkalinity tsim nyog, muaj zog oxidizing muaj peev xwm, txaus slag ntim, thiab zoo fluidity.
Cov muaj pes tsawg leeg ntawm slag thaum lub sij hawm melting yog roughly CaO {{{0}}}%, SiO2 15 ~ 25%, MnO 6 ~ 10%, FeO 15 ~ 25%, MgO 6 ~ 10%, P2O5 0.4 ~ 1.0%.
