Ferrosiliconfeem ntau yog tsim ntawm silicon (si) thiab hlau (FE), thiab tseem yuav muaj ib qho me me ntawm txhuas (al), mangonese (m), phosphorus (p), leej faj (s ) thiab lwm yam ntsiab lus. Hom ferrosilicon suav nrogFesi75Nrog cov ntsiab lus silicon ntawm 75% thiab Fesi45 nrog cov ntsiab lus silicon ntawm 45%. Nws muaj cov tshuaj muaj peev xwm ruaj khov, tab sis tshuaj lom neeg cov tshuaj yuav tshwm sim raws cov mob tshwj xeeb xws li cov cua sov siab. Silicon lub caij hauv Ferrosilicon muaj cov khoom muaj zog muaj zog thiab tuaj yeem hnov mob nrog cov pa, thiab lwm yam.
Lub luag haujlwm ntawm ferrosilicon hauv steelmaking
Tshem tawm cov pa oxygen los ntawm Molten Hlau:
Thaum lub sij hawm cov txheej txheem statmaking, oxygen reacts nrog hlau thiab lwm cov ntsiab lus, ua rau muaj cov pa oxygen loj hauv Molten hlau. Cov oxygens no yuav ua ke nrog lwm cov ntsiab lus los ua cov roj av oxide, uas cuam tshuam rau cov hlau oxide, ua kom muaj zog, ductility, ductility thiab lwm yam khoom ntawm cov hlau. Silicon hauv Ferrosilicon yog qhov muaj zog deoxidizer uas tuaj yeem hnov cov pa oxygen nyob rau hauv molten steel los tsim silicon dioxide (sitio₂). Txij li thaum lub ntom ntom ntawm silicon dioxide me dua li ntawm Molten hlau, nws yuav ntab rau cov pa roj av thiab txhim kho cov roj av thiab txhim kho lub purity ntawm cov hlau.
Tiv thaiv cov hws thiab looseness:
Yog tias cov pa oxygen nyob rau hauv cov hlau me nyuam tsis raug tshem tawm hauv lub sijhawm, tsis xws luag xws li pores thiab looseness yuav tsim thaum lub sijhawm ua tiav. Lub deagidation cov nyhuv ntawm ferrosilicon tuaj yeem txo cov kev tshwm sim ntawm cov hlau ntau dua, thiab txhim kho qhov zoo thiab ua tau zoo ntawm cov hlau.
Txhim kho lub zog thiab Hardness:
Silicon tuaj yeem yaj mus rau hauv cov hlau ntoo los ua cov tshuaj khov kho dag zog, yog li kev txhim kho lub zog thiab hardness ntawm cov hlau. Thaum tsim cov high-zog alloy steel, los ntawm kev ntxiv tus nqi tsim nyog kom tau raws li cov khoom muaj zog tuaj yeem ua kom tau cov khoom siv siab, kev tsim khoom lag luam rau cov qauv kev ua haujlwm thiab lwm thaj chaw.
Txhim khu corrosion tsis kam thiab oxidation tsis kam:
Silicon tuaj yeem tsim cov yeeb yaj kiab dense oxide ntawm cov hlau, uas tuaj yeem tiv thaiv cov pa roj av, yog li kev sib cuag cov tshuab hluav taws xob tsis kam thiab oxidation tsis kam ntawm cov hlau. Hauv kev tsim cov hlau stainless thiab kub-resistant steel, ferrosilicon yog ib qho tseem ceeb ntawm cov kev pab cuam lub neej ntawm cov hlau hauv qhov chaw hnyav.
Lis Kev Txhim Kho:
Hauv cov txheej txheem ntau lawm ntawm qee cov qib steel, ferrosilicon tuaj yeem siv ua ib qho inoculant. Nws tuaj yeem muab cov cores ntau rau cov nucleation ntawm cov nplej ntawm cov khoom siv ntawm Molten hlau, thiaj li ua kom zoo dua cov nplej. Refined nplej tuaj yeem txhim kho cov tawv, cov yas thiab qaug zog ntawm cov hlau, thiab txhim kho kev ua tau zoo ntawm cov hlau.
Txhim kho tus qauv tswj:
Lub inoculation cuam tshuam ntawm ferrosilicon kuj tseem tuaj yeem ua tus txheej txheem hlau ntau dua, thiab txhim kho kev ruaj khov ntawm cov hlau muaj kev ruaj ntseg.
Tus nqi ntawm ferrosilicon siv hauv steelmaking
Tus nqi ntawm ferrosilicon siv nyob rau hauv steelmaking nyob ntawm ntau yam, xws li hom hlau, ua kom sov, sib xyaw ua ke ntawm cov khoom raw. Feem ntau hais lus:
Cov Carbon Steel:
Rau kev tsim cov roj carbon hlau, tus nqi ntawm ferrosilicon ntxiv feem ntau yog qhov tsawg, feem ntau}}}. 3%}. 3% (Mass}). For example, when producing Q235 steel, the amount of ferrosilicon added may be between 0.15% and 0.25%, mainly for deoxidation and proper adjustment of silicon content to ensure the basic properties of the steel.
Tsawg Alloy Hlau:
Hauv kev tsim cov roj hlau qis, tus nqi ntawm ferrosilicon yuav nce raws li cov qauv ntawm Alloy tshwj xeeb, feem ntau}} {2}}. 8%. Piv txwv li, thaum ua lag luam 16mn steel, tus nqi ntawm ferrosilicon ntxiv yuav yog 0.4% {}}}. 6% los txhim kho lub zog thiab lwm yam khoom ntawm cov hlau.
High Alloy Alloy Hlau:
Rau qee cov hlau loj, xws li stainless hlau, kub-resistran, thiab lwm yam ntawm ferrosilicon yuav siab dua, qee zaum {% lossis siab dua. Piv txwv li, thaum kev tsim khoom 316L stainless hlau, txhawm rau kom muaj kev ua tau zoo ntawm corrosion, tus nqi ntawm ferrosilicon ntxiv yuav yog nruab nrab ntawm 1.5% thiab 2.5%.
Txawv rauv taws thiab cov txheej txheem:
Hauv kev hloov pauv steelmaking, tus nqi ntawm ferrosilicon ntxiv feem ntau nyob ib ncig ntawm 5-15 kg ib tev ntawm cov hlau; Nyob rau hauv cov hluav taws xob rauv statold steelmaking, vim qhov sib txawv Smelting cov yam ntxwv ntawm cov hluav taws xob hluav taws xob thiab cov nyiaj sib txawv ntawm {1}} kg ib tev ntawm cov hlau.
