Ferroalloys yog cov alloys ntawm ib lossis ntau cov hlau lossis cov khoom tsis yog xim hlau. Lawv tsis tuaj yeem siv ncaj qha raws li cov ntaub ntawv hlau, tab sis feem ntau yog siv los ua deoxidizers thiab cov khoom siv nruab nrab rau cov neeg ua haujlwm alloying hauv kev tsim steel.
(1) Siv los ua deoxidizer. Nyob rau hauv steel smelting, impurities xws li carbon thiab phosphorus oxidize nyob rau hauv molten hlau. Tom qab cov txheej txheem oxidation tiav, oxygen nkag mus rau hauv cov hlau molten. Yog tias cov pa oxygen no tseem nyob hauv cov hlau, nws txo nws txoj kev ua tau zoo. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ntxiv cov ntsiab lus uas muaj zog khi nrog oxygen thiab nws cov khoom deoxidation tuaj yeem raug tshem tawm yooj yim ntawm cov hlau molten, yog li txo cov pa oxygen ntawm cov hlau molten. Cov txheej txheem no hu ua steel deoxidation. Cov ntsiab lus lossis alloys siv rau deoxidation yog hu ua deoxidizers. Feem ntau siv deoxidizers xws li manganese, silicon thiab txhuas. Cov ntsiab lus no feem ntau yog ntxiv rau molten steel hauv daim ntawv ntawm cov hlau alloys Fe-Mn, Fe-Si, thiab Al. Qhov muaj zog lub caij muaj peev xwm los khi rau oxygen, nws cov ntsiab lus ntau dua hauv cov hlau thiab qhov zoo dua nws cov nyhuv deoxidizing.
(2) Siv los ua tus neeg sawv cev alloying: Alloying ntsiab tsis tsuas yog txo tus nqi ntawm impurities hauv steel, tab sis kuj tswj nws cov tshuaj muaj pes tsawg leeg. Cov ntsiab lus los yog alloys siv los kho cov tshuaj muaj pes tsawg leeg ntawm cov hlau thiab hlau nws yog hu ua alloying agents. Feem ntau siv alloying ntsiab muaj xws li silicon, manganese, chromium, molybdenum, vanadium, titanium, tungsten, cobalt, boron, niobium, thiab lwm yam.
(3) Kev txhim kho ntawm cov txheej txheem casting thiab casting zog=Ferroalloys kuj tseem siv tau los ua cov khoom siv ntxiv hauv kev lag luam hauv kev lag luam los txhim kho cov txheej txheem casting thiab casting zog.
(4) Raws li tus neeg sawv cev txo qis: Ferrosilicon tuaj yeem siv los ua tus neeg sawv cev txo qis hauv kev tsim cov ferroalloys xws li ferromolybdenum thiab ferrovanadium. Silicon-chromium alloys thiab silicon-manganese alloys tuaj yeem siv los txo cov neeg ua haujlwm rau ferrochrome refining thiab ferromanganese refining, feem.
(5) Lwm yam kev siv: Ferroalloys kuj tau siv dav hauv lwm qhov kev lag luam. Piv txwv li, ferrosilicon hmoov tuaj yeem siv los ua ib qho ntxiv hauv electrode coatings hauv kev lag luam vuam. Hauv kev lag luam ntxhia, ferrosilicon hmoov tuaj yeem siv los ua tus neeg sawv cev ncua, thiab hauv kev lag luam hluav taws xob, kev ua haujlwm siab purity silicon, tom qab qee qhov kev ua, tuaj yeem siv ua silicon transistors. Ob lub ntsiab lus alloying tuaj yeem sib xyaw ua ke los tsim cov xov hlau kub kub, xws li Cr20Ni80.
