Kev Tsim Khoom Ntawm Cov Carbon Ferromanganese

Cov txheej txheem ntau lawm ntawm cov pa roj carbon ferromanganese feem ntau muaj xws li blast furnace method thiab hluav taws xob rauv txoj kev.
Kev tsim cov pa roj carbon ntau ferromanganese los ntawm blast furnace txoj kev pib xyoo 1875 thiab muaj keeb kwm ntau dua 100 xyoo. kuv lub teb chaws tau pib siv cov blast furnaces los tsim ferromanganese nyob rau hauv 1949. Cov txheej txheem blast furnace yog ib qho kev siv thaum ntxov uas siv cov pa roj carbon ntau ferromanganese. Txoj kev no siv coke ua tus txo tus neeg sawv cev thiab qhov chaw tshav kub, dolomite los yog limestone raws li cov flux, thiab siv lub qhov cub tawg los tsim cov pa roj carbon monoxide ferromanganese. Txawm li cas los xij, txij li tus nqi ntawm coke nyob rau hauv tus nqi ntawm cov blast furnace smelting yog 5 mus rau 6 lub sij hawm ntawm hluav taws xob rauv smelting, ntau phosphorus nyob rau hauv lub coke yog kis mus rau hauv lub alloy, thiab lub cub tawg kub thaum lub sij hawm blast furnace smelting yog qis dua, yog li thaum lub sij hawm. cov txheej txheem smelting Lub volatilization ntawm phosphorus yog li 10% qis dua li ntawm cov hluav taws xob rauv taws.
Cov pa roj carbon ntau ferromanganese uas ua los ntawm cov hluav taws xob rauv txoj kev muaj tsawg impurities xws li silicon, phosphorus thiab sulfur.
Cov pa roj carbon ntau ferromanganese tuaj yeem siv los ua cov khoom siv alloy hauv cov txheej txheem steelmaking. Nws lub luag haujlwm tseem ceeb yog txhawm rau txhim kho cov ntsiab lus ntawm manganese hauv cov hlau molten, txhawb carburization hauv cov hlau molten, thiab sib npaug faib cov ntsiab lus carbon hauv cov hlau molten, yog li txhim kho cov hlau zoo thiab txhim kho cov hlau zoo. mechanical zog thiab corrosion kuj. Nyob rau tib lub sijhawm, cov pa roj carbon ferromanganese siab kuj tseem tuaj yeem tshem tawm cov khoom tsim tawm thaum lub sijhawm ua cov txheej txheem steel thiab txhim kho qhov zoo ntawm cov hlau molten.