Cov ntsiab lus ntawm siliconferrosilicon pobfeem ntau yog nyob rau hauv ib qho chaw tshwj xeeb. Cov feem ntau suav nrogferrosilicon 75nrog cov ntsiab lus silicon ntawm li 75%, uas muaj cov pa roj carbon tsawg, phosphorus, thiab sulfur cov ntsiab lus; thiabferrosilicon 72nrog cov ntsiab lus silicon ntawm li 72%. Cov hom sib txawv tsim nyog rau cov xwm txheej sib txawv vim qhov sib txawv ntawm cov ntsiab lus silicon thiab lwm cov ntsiab lus impurity.
Hauv kev lag luam steelmaking, ferrosilicon lumps plays lub luag haujlwm tseem ceeb heev li deoxidizer thiab alloying tus neeg sawv cev.
Silicon muaj cov tshuaj lom neeg muaj zog nrog oxygen. Nyob rau theem kawg tseem ceeb ntawm steelmaking, thaum ferrosilicon lumps raug pov rau hauv cov hlau molten, cov khoom silicon yuav sai sai ua ke nrog cov pa oxygen hauv cov hlau molten los tsim cov khoom sib txuas ruaj khov xws li silica thiab ntab mus rau kev tso tawm. Li no zoo txo cov pa oxygen hauv cov hlau molten thiab ua kom cov hlau zoo. Piv txwv li, thaum refining high-strength alloy steel, lub deoxidation ntawm ferrosilicon lumps yuav zam tsis xws luag xws li pores thiab looseness nyob rau hauv cov hlau vim muaj cov pa oxygen ntau dhau, thiab txhim kho qhov ntom thiab lub zog ntawm cov hlau.
Raws li tus neeg sawv cev alloying, silicon nyob rau hauv ferrosilicon pob yog kev sib xyaw rau hauv cov hlau, uas tuaj yeem txhim kho lub zog, hardness thiab elasticity ntawm cov hlau. Piv txwv li, thaum tsim cov rebar rau kev tsim kho, ntxiv qhov tsim nyog ntawm ferrosilicon lumps tuaj yeem txhim kho lub zog tensile ntawm cov hlau tuav, ua rau lawv zoo dua tiv taus lub siab thiab nruj ntawm lub tsev qauv.
Hauv kev lag luam cam khwb cia hlau, ferrosilicon lumps yog indispensable inoculants thiab spheroidizing neeg sawv cev.
Cam khwb cia hlau muaj cov yam ntxwv ntawm tus nqi qis, yooj yim melting thiab smelting thiab zoo heev casting kev ua tau zoo. Thaum lub pob ferrosilicon ntxiv rau cov cam khwb cia hlau yaj, nws tuaj yeem tiv thaiv kev tsim cov carbides hauv cov hlau molten thiab nquag txhawb cov nag lossis daus thiab spheroidization ntawm graphite. Siv cov khoom siv hlau ua piv txwv, qhov sib ntxiv ntawm ferrosilicon lumps ua rau cov graphite sib npaug sib npaug hauv cov cam khwb cia hlau matrix hauv cov duab kheej kheej, uas txawv kiag li ntawm cov qauv ntawm flake graphite nyob rau hauv dog dig grey cam khwb cia hlau. Cov qauv graphite no zoo heev txo qhov kev sib cais ntawm cov matrix, yog li txhim kho cov khoom siv ntawm cov hlau cam khwb cia, xws li tensile zog, toughness thiab ductility. Ductile hlau yog dav siv nyob rau hauv ntau lub teb xws li machinery manufacturing thiab kev lag luam tsheb. Nws tuaj yeem siv los tsim cov khoom tseem ceeb xws li lub cav lumps thiab crankshafts, txo cov nqi tsim khoom thaum ua kom zoo.
