Dab tsi yog Daim Ntawv Thov Ntawm FeSi70 Hauv General Steelmaking?

Dab tsi yog Daim Ntawv Thov ntawm FeSi70 hauv General Steelmaking (xws li Carbon Steel Deoxidation)?

Siv Moderate-Si Ferroalloy kom muaj txiaj ntsig Deoxidation thiab Alloying

FeSi 70(≈ 68–72 % Si) yog siv dav hauvGeneral steelmaking, tshwj xeeb tshaj yog raucarbon hlauthiab lwm cov qib sib xws, qhov twg anruab nrab silicon ntxivntsib ob leegdeoxidationthiaballoyingxav tau kev lag luam.

Cov ntawv thov tseem ceeb hauv Steelmaking

Daim ntawv thov	Muaj nuj nqi	Cov txiaj ntsig
Kev deoxidation	Si reacts nrog yaj O → SiO₂ tshem tawm hauv slag	Txo cov ntsiab lus oxygen, txhim kho kev huv, txo kev suav nrog- cuam tshuam txog qhov tsis xws luag
Simultaneous alloying	Ntxiv Si kom ua tiav lub hom phiaj lub zog / hardness	Tshem tawm qhov xav tau cais Si ntxiv cov kauj ruam
BOF/EAF tapping	Thaum ntxov deoxidation los tiv thaiv kim alloying ntsiab ntawm oxidation	Txhim kho alloy yield, txo refractory hnav
Nruam casting tundish kev kho mob	Qhov kawg O tswj los tiv thaiv nozzle clogging & defects nto	Txhim kho strand nto zoo
Carbon steel ntau lawm	Muab Si rau cov khoom siv ntxiv zog (qhov kawg Si 0.15-0.30%)	Boosts yield zog yam tsis muaj kev cuam tshuam loj rau weldability

Qhov zoo ntawm Carbon Steel Deoxidation

Nruab nrab Si cov ntsiab lus→ Tswj meej rau steels nrog me ntsis Si lub hom phiaj, tsis txhob overshoot.

Tus nqi efficiency: pheej yig dua ib tuj dua FeSi75, kev lag luam rau kev siv ntau.

Dual muaj nuj nqi: Ib qho ntxiv ua tiav ob qho O tshem tawm thiab Si alloying, ua kom lub sijhawm ua haujlwm luv.

Tswj tau slag ntim: Tsawg SiO₂ tsim ib chav tsev Si ntxiv piv rau siab dua Si alloys rau tib qib Si kawg.

Flexible form: Muaj raws li pob, crushed, los yog granule rau cov ntsiab lus sib txawv.

Kev xyaum

Ntxiv FeSi70 hauv lub ladletam sim ntawd tom qab tapping (los yog hauv kwj).

Dokom paub meej cov tshuaj tiv thaiv tiav:

Si+2[O] → SiO2(s)

Skim slagtshem tawm SiO₂.

Kho zaum kawg Siyog xav tau los ntawm kev ntxiv me me ntxiv.

Dab tsi yog Kev Siv FeSi70 hauv Foundry rau Hnyav -Section Cast Iron?

Inoculation thiab Microstructure Control nyob rau hauv Thick Castings

Hauvchaw tsim khoom, heavy-section cam khwb cia hlau(xws li, cav thaiv, tshuab hauv paus, vaj tse loj) nthuav tawm cov kev sib tw hauvgraphite tsimthiabtsis txhob chill / carbidenyob rau hauv cov cheeb tsam tuab.FeSi 70yog siv los ua ib qhoua tsis taus palos txhawb cov graphite zoo li qub thiab txo cov tawv nqaij tawv.

Lub luag haujlwm ntawm FeSi70 hauv Hnyav-Section Cast Iron

Muaj nuj nqi	Cov nyhuv hauv Hnyav Tshooj
Graphite nucleation	Txhawb Hom A graphite flakes, txo cov carbides random
Txias txo	Tiv thaiv nkig nto / nruab nrab ntu carbides hauv qhov chaw txias txias
Solidification tswj	Pab tswj cov khoom sib xws, txo qis qhov tsis xws luag
Txhim kho microstructure	Txhim kho cov khoom siv kho tshuab (lub zog tensile, machinability) hauv cov cheeb tsam tuab

Hom Inoculation Parameters rau Heavy Sections

Parameter	Yam Ntau Yam / Xyaum
Ntxiv sijhawm	Lub sijhawm inoculation lig (kawg 1-2 min ua ntej nchuav) lossis hauv -kwj thaum lub sijhawm teem
Kev noj tshuaj	0.3-0.6% ntawm yaj hnyav (hloov raws li seem thickness, thawj Si, thiab casting geometry)
Daim ntawv	Crushed 3-10 mm los yog granulated rau txhim khu kev qha dissolution nyob rau hauv loj yaj ntim
Melt kub	1350-1450℃rau qhov zoo tshaj plaws dissolution
Sib tov	Xyuas kom muaj kev faib khoom sib xws, tshwj xeeb tshaj yog nyob rau hauv cov ladles loj lossis cov phiab

Qhov zoo hauv Hnyav-Section Cast Iron

Balanced Si tso: Txaus Si rau inoculate tuab seem yam tsis muaj Fe dilution ntau dhau.

Tus nqi efficiency: pheej yig dua ib tuj dua FeSi75, txo tus nqi inoculation rau loj melts.

Txo cov slag ntau: Muab piv rau Sio alloys siab dua, SiO₂ tsawg dua tsim rau tib yam inoculation nyhuv.

Muaj: Feem ntau yooj yim muaj nyob rau hauv cov cheeb tsam uas FeSi75 cov khoom siv yog txwv lossis tshaj-spec rau cov kev xav tau hnyav.

Cov txiaj ntsig xav tau

Uniform Hom A graphitehla ntu tuab thiab nyias.

Txo txias qhov tob→ tsawg dua qhov nyuaj, zoo dua machinability.

Txhim kho tensile zog thiab damping muaj peev xwm.

Ntau qhov sib xws mechanical zogthoob plaws hauv hnyav casting.

Cov lus xaus

Lus nug	Teb
Daim ntawv thov ntawm FeSi70 nyob rau hauv dav steelmaking	Ladle / BOP deoxidation, ib txhij Si alloying, tundish kev kho mob; txhim kho kev huv thiab lub zog hauv cov pa roj carbon steel thiab lwm qib.
Kev siv FeSi70 hauv qhov chaw tsim khoom hnyav - ntu cam khwb cia hlau	Txhawb Hom A graphite, txo qhov txias, ua kom zoo dua cov qauv; ntxiv ntawm 0.3-0.6% ntawm yaj hnyav ua ntej pouring; nqi-zoo rau loj melts thiab tuab seem.

Ferrosilicon FAQ

Tuam Tshoj Metallurgy Daim Ntawv Thov Ferro Silicon / Ferrosilicon rau Ntshiab Ferro Silicon 75% rau Hlau thiab Hlau Kev Lag Luam ntawm Cov Nqi Sib Tw

Q: Impurity kam rau ua (piv txwv li, Al Tsawg dua lossis sib npaug rau 2%, Ca Tsawg dua lossis sib npaug li 1%) hauv kev lag luam FeSi70?
A: Al Tsawg dua lossis sib npaug li 2%, Ca Tsawg dua lossis sib npaug li 1%, ntxiv rau kev txwv ntawm C, P, S ib qib spec.

Q: Kev sib tw ntau lawm ntawm FeSi70: ntsuas Si rov qab thiab siv zog?
A: Tsawg Si yuav tsum muaj kev tswj xyuas kom tsis txhob dhau - txo qis, txuag lub zog thaum ntaus lub hom phiaj.

Q: Cov ntsiab lus tseem ceeb cuam tshuam rau Si cov ntsiab lus ruaj khov hauv FeSi70 (cov khoom siv raw purity, qhov cub tswj)?
A: SiO₂ purity, coke zoo, lub cub tawg temp, lub hwj chim input, slag muaj pes tsawg leeg.

Q: Txoj kev tshuaj xyuas zoo rau FeSi70 (xws li, titration rau Si cov ntsiab lus)?
A: Titration, gravimetry, XRF, ICP-OES kom raug Si ntsuas.

Q: FeSi70 nqe ib tuj 2024 / nqe zoo dua FeSi72/75?
A: Hauv 2024, ~ 8-15% pheej yig dua / tuj dua FeSi72/75, nws txawv nrog kev ua lag luam.

Mus saibhttps://www.metal-alloy.com/kom paub ntau ntxiv txog cov khoom. Yog tias koj xav paub ntau ntxiv txog tus nqi khoom lossis xav tau kev yuav khoom, thov emailmarket@zanewmetal.com. Peb yuav tau rov qab rau koj sai li sai tau thaum peb pom koj cov lus.

Tau txais ib nqe lus Hnub no

Iron Silicon Alloy With 75 Silicon Silver Grey Powder For High Strength Alloy Steel Making

🏭 Vim Li Cas Xaiv ZhenAn?

Peb nkag siab txog qhov mob tshwm sim hauv Ferro Silicon nrhiav hnub no:
• Cov nqi hauv zos siab thiab cov khoom tsis ruaj khov
• Lub sijhawm ua haujlwm ntev ua rau lub sijhawm ua haujlwm
• Cov khoom lag luam tsis tiav
• Kev sib txuas lus qeeb thiab tsis ua raws li -

Peb pab daws cov teeb meem no nrog:
✅ Cov khoom loj npaj rau kev xa khoom sai
✅ Ib qho - nres kev xa khoom rau Ferro Silicon, silicon hlau, Silicon hlau hmoov, thiab lwm yam
✅ Kev tswj xyuas nruj nrog cov qauv thoob ntiaj teb
✅ Pab pawg muag khoom muaj kev paub nrog cov lus teb sai thiab kev sib txuas lus meej

Peb xav kawm ntxiv txog koj cov kev xav tau thiab muab koj cov nqi sib tw thiab kev pabcuam zoo.

ib - nres kev daws teeb meem

pab neeg tshaj lij

siab zoo