Nyob rau hauv cov txheej txheem ntawm steel ntau lawm, ntxiv ib qho kev faib ua feem ntawm alloying ntsiab yuav ho txhim kho cov kev ua tau zoo ntawm steel. Ferrosilicon, raws li cov khoom siv alloy, yog siv dav hauv kev lag luam steel. Nws qhov sib ntxiv tuaj yeem txhim kho qhov zoo, txhua yam khoom thiab corrosion kuj ntawm steel. Kab lus no yuav qhia txog cov muaj pes tsawg leeg, kev ua haujlwm thiab kev siv ferrosilicon hauv cov hlau, nrog rau nws cov kev cuam tshuam rau kev ua haujlwm ntawm cov hlau.
Muaj pes tsawg leeg ntawm ferrosilicon:
Ferrosilicon yog cov khoom siv hlau feem ntau yog tsim los ntawm silicon (Si) thiab hlau (Fe). Raws li cov ntsiab lus silicon, ferrosilicon tuaj yeem muab faib ua ntau qib, xws li qis ferrosilicon (silicon cov ntsiab lus yog li 15% mus rau 30%), nruab nrab ferrosilicon (silicon cov ntsiab lus yog li 30% mus rau 50%) thiab siab ferrosilicon (silicon cov ntsiab lus ntau dua. 50%). Cov ntsiab lus ntawm silicon ntawm ferrosilicon txiav txim siab nws daim ntawv thov thiab cov nyhuv hauv cov hlau.
Mechanism ntawm kev ua ntawm ferrosilicon:
Lub luag haujlwm ntawm ferrosilicon nyob rau hauv steel feem ntau yog tshwm sim hauv cov hauv qab no: a. Cov nyhuv deoxidizer: Cov silicon hauv ferrosilicon reacts nrog oxygen hauv cov hlau ntawm qhov kub thiab txias los ua tus deoxidizer. Nws tuaj yeem nqus cov pa oxygen hauv cov hlau zoo, txo cov pa oxygen hauv cov hlau, tiv thaiv qhov hws thiab kev sib xyaw ua ke los ntawm kev tsim cov txheej txheem txias, thiab txhim kho qhov zoo thiab lub zog ntawm cov hlau. b. Cov nyhuv Alloying: Silicon hauv ferrosilicon tuaj yeem tsim cov hlau sib txuas nrog lwm cov khoom hauv cov hlau. Cov alloys sib xyaw ua ke tuaj yeem hloov cov qauv siv lead ua ntawm cov hlau thiab txhim kho hardness, toughness thiab corrosion kuj ntawm steel. c. Nce melting kub: Qhov sib ntxiv ntawm ferrosilicon tuaj yeem ua rau cov hlau melting kub, uas yog qhov zoo rau cov txheej txheem smelting thiab casting ntawm hlau.
Daim ntawv thov ntawm ferrosilicon hauv steel:
Ferrosilicon yog siv dav hauv kev lag luam steel, feem ntau suav nrog cov hauv qab no:
1. Stainless hlau manufacturing:
Ferrosilicon, raws li ib qho tseem ceeb alloying caij, yog siv nyob rau hauv stainless hlau manufacturing. Nws tuaj yeem txhim kho corrosion kuj, lub zog thiab hnav tsis kam ntawm stainless hlau.
2. High-speed steel manufacturing: Ferrosilicon tuaj yeem siv los ua cov khoom siv rau kev kub ceev steel los txhim kho lub hardness thiab hnav tsis kam ntawm high-speed steel, ua rau nws tsim nyog rau cov cuab yeej txiav, txiav cov cuab yeej thiab cov bearings.
3. Silicon steel manufacturing: Ferrosilicon plays lub luag haujlwm tseem ceeb hauv kev tsim cov hlau silicon hauv cov khoom siv hluav taws xob xws li motors, transformers thiab generators. Silicon hauv ferrosilicon tuaj yeem txo qhov sib nqus permeability hauv cov hlau, txo qis tam sim no poob thiab txhim kho electromagnetic zog.
4. Pipeline steel manufacturing: Qhov sib ntxiv ntawm ferrosilicon tuaj yeem txhim kho lub zog thiab corrosion tsis kam ntawm cov kav dej steel, txuas nws lub neej kev pab cuam, thiab txhim kho kev nyab xeeb ntawm cov kav dej.
5. Lwm qhov chaw thov: Ferrosilicon kuj tseem siv rau hauv kev tsim cov khoom siv refractory, casting thiab vuam industries, thiab lwm yam.
Cov txiaj ntsig ntawm ferrosilicon rau cov khoom steel:
Qhov sib ntxiv ntawm ferrosilicon muaj qhov cuam tshuam loj rau kev ua haujlwm ntawm cov hlau. Cov hauv qab no yog cov teebmeem tseem ceeb ntawm ferrosilicon ntawm cov khoom steel:
1. Txhim kho lub zog thiab hardness: Cov nyhuv alloying ntawm ferrosilicon tuaj yeem txhim kho lub zog thiab hardness ntawm cov hlau, ua rau nws tsim nyog rau cov ntawv thov uas xav tau lub zog siab.
2. Txhim kho corrosion kuj: Qhov sib ntxiv ntawm ferrosilicon tuaj yeem txhim kho corrosion ntawm cov hlau, ua rau nws tiv taus corrosion thiab oxidation.
3. Kho cov qauv siv lead ua: Cov silicon hauv ferrosilicon tuaj yeem tsim cov hlau alloy nrog lwm cov ntsiab lus hauv cov hlau, kho cov qauv siv lead ua ntawm cov hlau, thiab txhim kho nws cov khoom siv kho mob thiab cov khoom siv kho cua sov.
4. Txhim kho kev ua tau zoo: Qhov sib ntxiv ntawm ferrosilicon tuaj yeem txhim kho lub tshuab ua haujlwm ntawm cov hlau, txo kev ua haujlwm nyuaj, thiab txhim kho kev tsim khoom.
Raws li ib qho tseem ceeb ntawm cov khoom siv hlau, ferrosilicon muaj ntau yam kev siv thiab qhov tseem ceeb hauv kev lag luam steel. Nws muaj cov txiaj ntsig zoo rau qhov zoo, cov khoom siv kho tshuab thiab corrosion kuj ntawm cov hlau los ntawm cov txheej txheem xws li deoxidizer, alloying thiab nce melting kub. Ferrosilicon muaj cov ntawv thov tseem ceeb hauv kev tsim cov hlau tsis muaj steel, kev tsim cov hlau kub ceev, kev tsim cov hlau silicon, cov yeeb nkab steel thiab lwm yam kev lag luam, thiab muaj kev cuam tshuam loj rau lub zog, hardness, corrosion kuj thiab kev ua haujlwm ntawm cov hlau. Yog li ntawd, nws yog ib qho tseem ceeb kom nkag siab txog qhov muaj pes tsawg leeg ntawm ferrosilicon.
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