Dab tsi yog Qhov Zoo Tshaj Plaws Ntawm FeSi70 Hauv Cov Hluav Taws Xob Hluav Taws Xob (BOF) Steelmaking?

Dab tsi yog Qhov Zoo Tshaj Plaws ntawm FeSi70 hauv Basic Oxygen Rauv (BOF) Steelmaking?

Kev suav thiab siv FeSi70 rau kev ua haujlwm zoo deoxidation thiab Alloying hauv BOF

HauvBOF steel ua, FeSi70 feem ntau yog ntxivtom qab tappingmus rau hauv lub ladle, vim hais tias BOF nws tus kheej tsis yog qhov zoo tagnrho rau cov txheej txheem lig-theem alloying vim lub sij hawm luv luv thiab turbulence.

Dosage Calculation Basics

Txiav txim siab Si ncehauv steel:

Δ[Si]{{0}[Si]final-[Si]initial

Hloov mus rau alloy lojsiv FeSi70 Si cov ntsiab lus (~ 70%):

mFeSi70=%Si hauv FeSi70Δ[Si] × Qhov Ntsuas Kub

(Qhov hnyav hauv tons, Si cov ntsiab lus raws li tus lej)

Hom Tshuaj Ntau Yam

Steel Qib / Daim Ntawv Thov	Hom kawg Si (%)	Thawj Si (%)	ΔSi (%)	FeSi70 Dosage (% ntawm qhov hnyav thaum tshav kub kub)	Lus hais
Carbon steel (rebar, structural)	0.15–0.25	0.05–0.10	0.10–0.20	0.15–0.30	Kev xyaum BOF
Tsawg-alloy steel	0.25–0.40	0.05–0.10	0.20–0.35	0.30–0.50	Tej zaum yuav xav tau kev sib cais ntxiv
Foundry hlau (yog tias BOF siv rau hlau desulfurization)	0.8–1.2	0.2–0.4	0.6–0.8	0.9–1.2	Tsis tshua muaj hauv BOF, ntau dua hauv EAF

Kev xyaum zoo hauv BOF

Ntxiv rau lub ladletam sim ntawd tom qab tapping pib los xyuas kom meej qhov sib tov zoo.

Siv granulated FeSi70 (3-10 hli)kom nrawm dua.

Donrog argon bubbling lossis mechanical agitation rau 3-5 min tom qab ntxiv.

Split ntxivYog tias qhov loj Si hloov xav tau: ib feem ntawm lub ladle thaum ntxov, seem tom qab kub stabilizes.

Saib xyuas qhov kub thiab txias(Ntau dua lossis sib npaug rau 1600 degree) kom ua tiav tiav ua ntej casting.

Yuav ua li cas kom tsis txhob sib npaug Si Distribution thaum siv FeSi70 hauv cov Ladles loj?

Ua kom muaj homogeneous Silicon hauv High-Volume Steelmaking

Hauvloj laiv (e.g., >100 t), kev sib xyaw tsis zoo tuaj yeem ua raulocal Si enrichmentlos yog depletion, ua rau inconsistent mechanical zog.

Cov tswv yim los xyuas kom meej Uniform Si Distribution

Tswv yim	Nws ua haujlwm li cas	Kev nqis tes ua
Tsim nyog qhov chaw ntxiv	Qhia FeSi70 qhov twg ntws txhawb kev sib xyaw (nruab nrab-ntev tob, tsis nto)	Siv submerged chute los yog lance rau kwj ntxiv
Tswj stirring	Argon bubbling tsim convection tam sim no uas disperse Si	Ua kom tus nqi ntws tsis tu ncua rau 3-8 feeb tom qab ntxiv
Kub uniformity	Cov chaw txias qeeb qeeb → tsis sib xws Si	Preheat ladle, maintain bath temp >1600 degree
Particle loj xaiv	Cov granules me me yaj sai dua thiab faib ntau qhov sib npaug	Siv 1-5 hli granules rau ladles loj
Ntau lub ntsiab lus ntxiv	Faib tag nrho cov koob tshuaj rau hauv 2-3 qhov chaw	Txo cov cheeb tsam siab-Si cheeb tsam
Slag npog	Tiv thaiv qhov chaw oxidation/re-absorption ntawm Si	Ntxiv slag qub tom qab alloying rau ntxiab SiO₂
Lub sij hawm nyob ua ntej tapping	Tso cai rau tag nrho homogenization	Tuav 5-10 feeb tom qab nplawm ua ntej casting

Tswv yim:Hauvnruam casting tundish kev kho mob, sivhlau pubntawm FeSi70 hmoov rau meej, ceev ceev.

Dab tsi yog Kev Nyab Xeeb Kev Nyab Xeeb rau Kev Siv FeSi70 (Plua Plav Tswj, Tiv Thaiv Kev Tiv Thaiv)?

Tiv thaiv cov neeg ua haujlwm thiab cov khoom siv ncaj ncees

FeSi70 ibhmoov los yog nplua granular daim ntawvposeshmoov av inhalationthiabnoo noo-rhiabkev phom sij. Kev ruaj ntseg tuav ob leegkev noj qab haus huv ntawm tus neeg ua haujlwmthiabkhoom reactivity.

Kev ntsuas kev nyab xeeb tseem ceeb

Hazard	Txaus ntshai	Kev Tiv Thaiv Kev Ntsuas
Plua plav inhalation	Ua pa khaus, ua rau lub ntsws ntev	• NIOSH-pom zoo ua pa (P100 lim) rau kev tuav cov hmoov zoo • Lub qhov hluav taws xob hauv zos (LEV) lossis fume hood • Tsis txhob tsim cov huab cua hauv huab cua
Cov tshuaj tiv thaiv noo noo	Muaj peev xwm tsim ntawm silanes lossis nto oxidation; clumping	• Khaws rau hauv cov thawv ntim qhuav, kaw ntom ntom (steel nruas, hnab ntim dej tsis zoo) • Khaws thaj chaw cia cov av noo< 40 % RH • Tsis txhob tso dej los yog cov av noo siab
Cov tawv nqaij / qhov muag khaus	Mechanical abrasion los ntawm cov khoom zoo	• looj tsom iav dub/ ntsej muag daim npog qhov ncauj • Cov hnab looj tes tiv taus nplaim taws • Lub tes tsho ntev thiab npog
Kev phom sij hluav taws (zoo hmoov hauv huab cua)	Combustible plua plav tawg nyob rau hauv qhov chaw kaw	• Tsis txhob qhib nplaim taws, nplaim taws, qhov chaw kub • Cov khoom siv hauv av tiv thaiv kom tsis txhob muaj cov kab mob zoo li qub • Siv lub teeb pom kev tawg-pov thawj hauv chaw khaws khoom / tuav
Txhaum teb	Plua plav dispersion, paug	• Hnav PPE tag nrho • Da dej nrog dej los yog siv HEPA nqus tsev vacuum (tsis cheb qhuav) • Muab pov tseg raws cov txheej txheem pov tseg yog tias muaj kab mob

Kev khaws cia & tuav cov kev coj ua zoo tshaj plaws

Khaws cov ntim ntim kawmus txog qhov chaw siv.

Khaws cov av ntub dejntawm pallets.

Sau npe kom meejnrog batch ID, hnub tim, thiab ceeb toom xwm txheej.

Tsheb ciav hlau cov neeg ua haujlwmhauv SDS cov ntaub ntawv thiab cov txheej txheem xwm txheej ceev.

Hloov cov Tshuag - siv cov khoom qub tshaj plaws ua ntej kom txo qis kev laus.

Cov lus xaus

Lus nug	Cov Ntsiab Lus
Kev noj tshuaj zoo tshaj plaws ntawm FeSi70 hauv BOF steelmaking	xam los ntawm lub hom phiaj ΔSi; ib txwm 0.15-0.50% ntawm tshav kub hnyav; ntxiv rau hauv lub ladle tom qab tapping, siv granules, do zoo, sib cais ntxiv rau kev hloov loj.
Yuav ua li cas kom tsis txhob sib npaug Si faib hauv cov ladles loj	Ntxiv rau qhov nruab nrab qhov tob, siv cov tshuaj sib tov, tswj qhov kub thiab txias, siv cov granules zoo, ntau cov ntsiab lus ntxiv, tso cai rau lub sijhawm nyob ua ntej casting.
Kev ntsuas kev nyab xeeb rau kev tuav FeSi70	Tswj cov plua plav (lub tshuab ua pa, LEV), tiv thaiv kom tsis txhob ya raws (kev kaw cia qhuav), tiv thaiv daim tawv nqaij / qhov muag, tsis txhob siv hluav taws xob, ua raws li cov txheej txheem spill, cob qhia cov neeg ua haujlwm.

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: Ferro Silicon 70 (FeSi70) yog dab tsi?
A: Ib qho hlau-silicon alloy nrog ~ 70% Si, siv rau deoxidation thiab alloying hauv steelmaking thiab foundries.

Q: Tshuaj muaj pes tsawg leeg ntawm FeSi70 (ib yam Si, Fe, thiab impurity theem)?
A: ~ 68–72% Si, sib npaug Fe, impurities: Al Tsawg dua lossis sib npaug 2%, Ca Less dua lossis sib npaug rau 1%, C Tsawg dua lossis sib npaug 0.2%, P Tsawg dua lossis sib npaug 0.04%, S Tsawg dua lossis sib npaug 0.02%.

Q: Puas yog FeSi70 tau lees paub qib kev lag luam? ASTM / GB cov qauv?
A: Tsis nyob hauv ASTM A1006; npog hauv GB / T 2272 (Tuam Tshoj) thiab ISO 5448 raws li qib nruab nrab-Si.

Q: Silicon cov ntsiab lus ntau rau FeSi70 (piv txwv li, 68-72%)?
A: Feem ntau 68-72% Si, nominal 70%.

Q: Qhov txawv ntawm FeSi70 thiab FeSi72 (Si cov ntsiab lus, nqi, deoxidation efficiency)?
A: FeSi70 qis Si, tus nqi qis dua, me ntsis txo qis deoxidation dua li FeSi72.

Q: FeSi70 vs FeSi65: Qhov twg zoo dua rau qis - silicon steel ntau lawm?
A: FeSi65 zoo dua rau cov hom phiaj Si tsawg heev; FeSi70 muab Si ntau dua rau ib chav tsev, yog li yuav tsum tau muab tshuaj kom zoo.

Q: Vim li cas thiaj xaiv FeSi70 ntau dua cov qib silicon hauv tus nqi- cov ntawv thov nkag siab?
A: Tus nqi qis dua, Si txaus rau cov qauv xav tau, txo cov nqi hlau.

Q: Kev siv ntawm FeSi70 hauv kev ua steel hlau (piv txwv li, carbon steel deoxidation)?
A: Tshem tawm cov pa oxygen hauv BOF / EAF, kho Si hauv carbon steels.

Q: Siv FeSi70 hauv qhov chaw tsim khoom hnyav -section cam khwb cia hlau?
A: Inoculation los tiv thaiv txias, txhawb nqa graphite zoo ib yam.

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

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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

Dab tsi yog Qhov Zoo Tshaj Plaws ntawm FeSi70 hauv Basic Oxygen Rauv (BOF) Steelmaking?​