Ferrosilicon's Influence On Steelmaking

Silicon yog cov khoom siv raw ntawm smelting ferrosilicon, ferrosilicon cov neeg muag khoom ntseeg tias kev siv cov ferrosilicon siab dov, nyob rau hauv cov txheej txheem ntawm hluav taws xob rauv steelmaking, nrog ferrosilicon hmoov diffusion deoxidation. Txawm hais tias qhov me me ntawm ferrosilicon hmoov zoo dhau los yog ntxhib dhau lawm yuav cuam tshuam rau kev sib txuas ntawm ferrosilicon nitride. Qhov loj me me ntawm ferrosilicon hmoov muaj kev cuam tshuam zoo rau qhov zoo ntawm ferrosilicon nitride synthesis.

Txhawm rau txo qis cov ntsiab lus slag, txo kev siv hluav taws xob thiab ua kom ntau lawm, cov ntsiab lus silicon yuav tsum muaj ntau dua 97 feem pua. Cov kab liab liab ntawm qhov chaw ntawm silicon dioxide yog cov muaj alumina. Nyob rau hauv silicon dioxide, alumina yog ib qho teeb meem impurity, nws melting point yog hais txog 2050 degree, thaum lub slag muaj siab alumina, nws yuav ua rau slag paug teeb meem. Nyob rau tib lub sijhawm, silica muaj ntau ntawm alumina, yooj yim kom txo tau aluminium rau ferrosilicon, nce cov ntsiab lus ntawm txhuas hauv ferrosilicon, cuam tshuam qhov zoo ntawm ferrosilicon. Yog li ntawd, tsis muaj ntau tshaj 1 feem pua ​​alumina yuav tsum tau nyob rau hauv silica. Qhov loj me me ntawm ferrosilicon hmoov yog qhov zoo heev, ua rau cov tshuaj tiv thaiv mob siab heev, ua rau cov qauv sib xyaw ntau dhau, ua rau tsis tiav nitridation. Tab sis cov nyhuv nitriding zoo dua li cov hmoov ferrosilicon ntxhib. Rau ntxhib ferrosilicon hmoov, cov nyhuv nitriding tuaj yeem ua tiav los ntawm kev ncua lub sijhawm tuav kom tsim nyog. Tab sis nrog kev txuas ntxiv ntawm lub sijhawm tuav, cov nyhuv nitriding ntawm cov hmoov zoo ferrosilicon hmoov tsis pom tseeb li cov hmoov ferrosilicon ntxhib.

Vim muaj cov sulfur (S) thiab silicon (Si) nyob rau hauv cov txheej txheem smelting los tsim silicon sulfide, xws li SIS, Sis2 thiab lwm cov tebchaw, qhov kev thov rau phosphorus pentoxide tsis tshaj 0.02 feem pua. Cov ntsiab lus sulfur ntawm silicon. Cov tebchaw no yog volatile ntawm qhov kub thiab txias thiab yog li ntawd tsis xav tau cov sulfur ntsiab lus ntawm silicon. Cov ntsiab lus siab ntawm calcium oxide (calcium oxide) thiab magnesium oxide (magnesium oxide) hauv silica xav kom cov ntsiab lus ntawm calcium oxide thiab magnesium oxide tsawg dua 1 feem pua ​​​​hauv smelting, uas ua rau kom cov slag ntim thiab erodes cov hlau pores. Cov ntsiab lus saum toj no yog cov chaw tsim khoom ferrosilicon los qhia koj txog qhov yuav tsum tau ua ntawm ferrosilicon smelting ntawm silica, tab sis kuj raws li kev xaiv ntawm ferrosilicon rauv los txiav txim.