Hloov Ferrosilicon nrog Silicon Carbide: Tus Nqi -Txuag Phau Ntawv Qhia rau Cov Nroj Tsuag Hlau
Silicon carbide (SiC) tau txav los ntawm ib qho kev hloov pauv mus rau ib qho kev hloov pauv loj rau ferrosilicon (FeSi) hauv steelmaking. Nws muab ob qho tib si silicon thiab carbon nyob rau hauv ib qho ntxiv - deoxidising lub da dej, pab txhawb rau cov pa roj carbon specification, thiab generating exothermic zog uas txhim kho lub cub tawg efficiency. Phau ntawv qhia no piav qhia txog chemistry, tus lej lej, thiab cov txheej txheem sim ua haujlwm kom tus neeg saib xyuas kev yuav khoom lossis tus kws kho mob cog qoob loo tuaj yeem ntsuas SiC hloov pauv nrog kev ntseeg siab - tsis yog kwv yees.
Ntsiab Cai
Ib kilogram ntawm 90% SiC muab kwv yees li 0.63 kg ntawm silicon thiab 0.27 kg ntawm carbonmus rau lub molten da dej - koj hloov ob cov ntaub ntawv nrog ib tug ntxiv.
Pib nrog 30-50% hloov ib nrab ntawm FeSi silicon units.Kev hloov pauv tag nrho yog ua tau rau cov qib carbon thiab cov qib rebar tab sis tsis yog rau ultra-qis-carbon lossis nruj- specification alloy steels.
Particle loj tswj kev tawg ceev.1–3 mm yog qhov dav dav - lub hom phiaj xaiv rau kev ntxiv ladle; 10-50 hli lumps haum BOF converter xyaum.
Kev txuag nqi nyob ntawm koj lub zos FeSi vs. SiC tus nqi sib kis.Raws li lig-2025 txog nruab nrab-2026 Suav tus nqi hauv tsev, SiC tau pauv ntawm 8-15% luv nqi rau ib qho sib npaug silicon unit.
Saib xyuas kev ua haujlwm ntawm deoxidation, carbon pick- nce qhov sib xws, thiab slag fluidityhla tsawg kawg 10 heats ua ntej scaling qhov hloov pauv.
Xav tau tus qauv SiC Tus Nqi Them rau koj lub zeb?
Xa koj qhov kev siv FeSi tam sim no rau peb, cov hom phiaj steel qib, thiab tus nqi xa tawm - peb pab neeg ua haujlwm engineering yuav tsim cov nroj tsuag - kev hloov pauv tshwj xeeb yam tsis tau them nqi.
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1. Chemistry: SiC ua haujlwm li cas hauv Molten Steel
Txhawm rau ntsuas SiC raws li kev hloov ferrosilicon, pib nrog dab tsi tshwm sim thaum nws nkag mus rau hauv da dej. Silicon carbide tsis tsuas yog yaj - nws dhau los ntawm ob txheej txheej thermochemical uas txawv ntawm FeSi.
1.1 Dissociation thiab Deoxidation
Ntawm steelmaking kub (~ 1,600 degree), SiC dissociates. Lub silicon reacts nyiam nrog yaj oxygen (FeO) hauv da dej:
Si + 2 FeO → SiO₂ + 2 Fe ΔH=−301 kJ/mol Si (exothermic)
Qhov tshwm sim silica (SiO₂) qhia rau cov slag. Vim tias cov tshuaj tiv thaiv no yog exothermic, txhua kilogram ntawm SiC ntxiv muab ib qho kev sib koom ua ke thermal - ib qho txiaj ntsig thib ob thaum cov khoom seem yog siab lossis kub - hlau kub yog marginal.
1.2 Cov pa roj carbon dissolution
Cov pa roj carbon los ntawm SiC dissolves rau hauv cov hlau da dej:
C (los ntawm SiC) → [C] hauv molten hlau
Qhov no yog qhov txawv ntawm FeSi: ferrosilicon xa cov siliconnkaus xwbThaum SiC muab ob qho tib si silicon thiab carbon. Rau cov qib steel nrog cov pa roj carbon specification saum toj no 0.10%, qhov kev xa khoom dual no yooj yim rau kev xyaum ntxiv. Rau cov qib qis dua 0.06% C, cov pa roj carbon ntau los ntawm SiC yuav tsum suav nrog thiab tuaj yeem txwv qhov kev hloov pauv.
1.3 Slag Interaction
Cov silica tsim thaum lub sij hawm deoxidation (SiO₂) yog acidic. Hauv BOF lossis ladle furnace nrog ib qho yooj yim slag (CaO / SiO₂ piv feem ntau 2.5–3.5), SiO₂ ntxiv los ntawm SiC yuav hloov cov slag hauv paus me ntsis downward. Qhov no feem ntau yog benign ntawm qhov hloov pauv ib nrab (30-50%) tab sis yuav tsum tau saib xyuas los ntawm cov qauv slag thaum lub sijhawm sim. Thaum cov slag V- ratio (CaO/SiO₂) poob qis dua 2.0, desulfurisation muaj peev xwm poob qis - ib qho xwm txheej los saib yog tias koj cov nroj tsuag tsim qis- qib sulfur.
2. Stoichiometry: Dab tsi Ib Kilogram ntawm SiC xa
Tus nqi ntawm SiC raws li kev hloov FeSi nyob ntawm qhov ncaj ncaj ncaj ncaj ncaj ncaj ncaj ncaj ncaj ncaj. SiC muaj qhov hnyav molecular ntawm 40.1 g / mol (Si=28.1, C=12.0). Hauv SiC ntshiab, silicon yog 70.0% los ntawm huab hwm coj thiab carbon yog 30.0%.
Metallurgical -qib SiC tsis huv - qhov sib npaug suav nrog cov pa roj carbon dawb, silica, thiab cov oxides me. Cov lus hauv qab no qhia txog qhov ua tau zoo ntawm silicon thiab carbon xa tawm ib kilogram rau ob qib.
| Qib SiC | SiC Purity (wt%) | Muaj Si (kg / kg) | Muaj C (kg / kg) | Yam Tsis Pub C (wt%) | Hom SiO₂ (wt%) |
|---|---|---|---|---|---|
| SiC 88% | Ntau dua lossis sib npaug li 88 | ≈ 0.62 | ≈ 0.26 | Tsawg dua lossis sib npaug li 5.0 | Tsawg dua lossis sib npaug li 5.0 |
| SiC 90% | Ntau dua lossis sib npaug li 90 | ≈ 0.63 | ≈ 0.27 | Tsawg dua los yog sib npaug rau 3.0 | Tsawg dua lossis sib npaug li 3.5 |
Muaj Si thiab C yog qhov theoretical maxima raws li stoichiometry (Si=28.1} / 40.1=70.0%; C=12.0 / 40.1=30.0%) multiplied by SiC purity. Kev rov qab los tiag tiag hauv chav da dej yog nyob ntawm kev xyaum ntxiv, slag mob, thiab nplawm - feem ntau 85-95% rau silicon thiab 80-90% rau cov pa roj carbon zoo- tswj cov ladle ntxiv. Source: SiC cov ntaub ntawv molecular los ntawm NIST Standard Reference Database; impurity ranges ib GB / T 2480-2022.
Kev sib piv:Txhawm rau xa 1.0 kg ntawm silicon rau da dej, ib tsob nroj xav tau kwv yees li 1.59 kg ntawm 90% SiC (xws li 100% theoretical yield) piv rau kwv yees li 1.33 kg ntawm FeSi75 (75% Si). Txoj kev SiC ntxiv kwv yees li 0.43 kg ntawm carbon tib lub sijhawm - uas tuaj yeem txo lossis tshem tawm qhov xav tau rau kev sib cais ntawm recarburiser ntxiv. Kev lag luam net nyob ntawm seb koj cov txheej txheemxavtias carbon.
3. Qib Xaiv: SiC 88% vs SiC 90%
Qhov kev xaiv ntawm 88% thiab 90% SiC tsis yog ib lo lus nug ntawm purity - nws cuam tshuam qhov kev kwv yees rov qab, slag ntim, thiab qhov sib xws ntawm cov pa roj carbon monoxide - los ntawm tshav kub mus rau tshav kub.
| Kev ntsuas | SiC 88% | SiC 90% |
|---|---|---|
| Tus nqi ib tuj (qhia Q2 2026, FOB Tuam Tshoj) | Tsawg dua ~ 5-8% | Lub hauv paus |
| Silicon rov qab sib xws | Zoo; ± 3% kev hloov pauv ua tau | Zoo dua; ± 1.5%. |
| Dawb cov ntsiab lus carbon | Tsawg dua lossis sib npaug li 5.0% | Tsawg dua lossis sib npaug li 3.0% |
| Slag ntim cuam tshuam | Siab dua me ntsis (ntau SiO₂ thiab oxides los ntawm impurities) | qis |
| Pom zoo daim ntawv thov | Rebar (GB 1499.2), hlau pas nrig, cov qauv ntu, qis- alloy phaj | Pipeline steel, txias-kev ua haujlwm zoo, daim ntawv tsav tsheb, zoo- cov cua sov tseem ceeb |
| GB/T siv | GB / T 2480-2022, dub SiC, qib metallurgical | GB / T 2480-2022, dub SiC, qib metallurgical |
Cov nqi yog qhov qhia tau thiab sib txawv nrog kev txiav txim ntim, nqe lus cog lus, thiab qhov chaw thauj khoom thauj. ZhenAn International muab SGS-cov ntawv pov thawj ntau nrog txhua qhov khoom xa tuaj. Piv nrog rau ferrosilicon (GB/T 2272-2020, feem ntau FeSi75 qib uas muaj 72–80% Si), SiC muab cov txiaj ntsig dual-function ntawm tus nqi qis dua ib qho sib npaug silicon unit hauv kev ua lag luam feem ntau.
4. Particle Size thiab Absorption Kinetics
Qhov loj me me tsis yog qhov nthuav dav thib ob - nws tswj hwm sai npaum li cas SiC yaj, qhov twg hauv qhov cub nws hnov mob, thiab seb qhov kev nplua puas poob rau - roj ua ntej lawv mus txog da dej. Txoj kev sib raug zoo yog ncaj nraim: cov khoom me me yaj sai dua tab sis muaj kev cuam tshuam ntau dua rau cov plua plav poob; Cov khoom loj dua muaj sia nyob ntev dua hauv cov txheej slag tab sis yaj qeeb dua.
| Qhov Loj | Lub sijhawm tawg * | Daim ntawv thov zoo tshaj plaws | Tseem Ceeb Risk |
|---|---|---|---|
| 0-1 hli | < 10 seconds | Ladle rauv, argon- stirred, enclosed add system | Kev nplua poob rau kev tawm - roj rho tawm ua ntej nkag mus rau hauv da dej |
| 1-3 hli | ~ 15-30 feeb | Ladle furnace (lub hom phiaj dav dav); feem ntau siv dav | Pom tau plua plav poob yog ntxiv ntawm qhov tseeb lance qhov tob |
| 3-10 hli | ~ 30-90 feeb | BOF converter ntxiv; ladle nrog qaug zog stirring | Tsis tiav dissolution yog ntxiv lig nyob rau hauv lub tshav kub |
| 10-50 hli | >90 nqi | BOF converter (khoom ntxiv nrog cov seem lossis hlau kub) | Kev tawg qeeb qeeb; xyuas kom meej ntxiv thaum ntxov ntawm lub tshuab |
* Kwv yees li lub sijhawm tawg hauv 1,600℃da dej nrog nruab nrab argon nplawm. Lub sijhawm tiag tiag nws txawv nrog qhov kub thiab txias, slag qhov tob, nplawm siv, thiab SiC purity. Tau qhov twg los: Tsib ASA cov ntaub ntawv qhia txog SIKA® metallurgical SiC; Daim ntawv thov Miller thiab Company LLC.
Cov lus qhia dav dav -lub hom phiaj yog1-3 hlirau ladle furnace ntxiv. Nws muab ib tug workable tshuav nyiaj li cas ntawm dissolution ceev thiab rov qab. Nroj tsuag ntxiv SiC rau BOF converters yuav tsum siv10-50 hlicov khoom siv pob thiab ntxiv nrog cov khoom seem lossis thaum ntxov ntawm cov pa oxygen kom paub meej tag nrho cov kev sib cais ua ntej tapping.
5. Kauj Ruam -los ntawm - Kauj Ruam Hloov Txoj Cai
Hloov ntawm FeSi mus rau SiC tsis yog ib qho - hloov sijhawm - nws yog txheej txheem ntsuas. Cov txheej txheem hauv qab no yog ua raws li cov kev coj ua tau lees paub thoob plaws ntau lub teb chaws Suav steel thiab ua raws cov lus pom zoo los ntawm Miller thiab Company LLC thiab Tsib ASA.
Kauj Ruam 1: Kev Sau Cov Ntaub Ntawv Hauv paus (1 lub lis piam)
Ua ntej yuav hloov pauv, sau cov hauv qab no kom tsawg kawg 20 qhov sib law liag uas siv koj cov FeSi tam sim no -tsuas yog xyaum:
FeSi ntxiv qhov hnyav rau ib lub tshav kub (kg)
Kais silicon thiab carbon (nruab nrab thiab tus qauv sib txawv)
Silicon rov qab tus nqi: (Si hauv tapped steel - Si hauv seem / kub hlau) ÷ Si ntxiv
Slag Basicity (CaO/SiO₂) tom qab ntxiv
Cov ntsiab lus oxygen kawg (ppm)
Kauj Ruam 2: Kev Hloov Hloov Ib Feem (30%, 10 heats yam tsawg kawg nkaus)
Hloov 30% ntawm FeSi silicon units nrog SiC silicon units. Xam qhov SiC ntxiv qhov hnyav li:
SiC ntxiv (kg)=FeSi silicon hloov (kg) ÷ (SiC purity × 0.70)
Piv txwv li: Ib tsob nroj ntxiv 200 kg ntawm FeSi75 rau ib lub tshav kub (150 kg Si). Hloov 30% ntawm silicon units (45 kg Si) nrog 90% SiC yuav tsum: 45 ÷ (0.90 × 0.70)=71.4 kg ntawm 90% SiC. Txo FeSi ntxiv rau 200 − (45 ÷ 0.75)=140 kg. Cov net ntxiv dhau los ua 140 kg FeSi 75 + 71.4 kg 90% SiC.
Kauj Ruam 3: Scale rau 50% (10 heats yam tsawg kawg nkaus)
Yog tias qhov kev sim 30% pom tau tias qhov kev rov ua tau zoo ntawm silicon (nyob rau hauv ± 5% ntawm cov hauv paus ntsiab lus) thiab cov pa roj carbon pick- yog ruaj khov, nce mus rau 50% silicon- hloov pauv. Saib xyuas tib qhov tsis zoo ntxiv rau cov pa roj carbon kawg -point faib.
Kauj ruam 4: Optimize thiab Standardize
Tom qab siv tau ntawm 50%, txiav txim siab seb puas yuav tswj qhov sib piv lossis thawb siab dua raws li qib steel cov pa roj carbon siab. Cov ntaub ntawv txheej txheem kev khiav hauj lwm (SOP) nrog lub hom phiaj ntxiv qhov hnyav, qhov sib ntxiv (thaum nyob rau hauv lub tshav kub kom ntxiv SiC), thiab kev kam rau siab bands rau silicon thiab carbon.
6. Lub tshuab hluav taws xob saib xyuas kev ua haujlwm thaum lub sijhawm hloov pauv
Thaum lub sij hawm mus sib hais, saib peb qhov taw qhia ib qho cua sov:
| Qhov taw qhia | Yuav ntsuas dab tsi | Txais tau ntau yam thaum lub sij hawm sim | Tus chij liab |
|---|---|---|---|
| Deoxidation efficiency | Cov ntsiab lus oxygen kawg (ppm) vs | ± 10% ntawm qhov nruab nrab nruab nrab | Oxygen> 20% saum toj no hauv paus rau 3+ cua sov sib law liag |
| Cov pa roj carbon stability | Standard sib txawv ntawm kais carbon hla mus sim heats | Tsis pub dhau 120% ntawm lub hauv paus σ | Carbon overshoot tshaj li saum spec txwv nyob rau hauv tej tshav kub |
| Slag fluidity | Kev ntsuam xyuas pom + CaO/SiO₂ ratio los ntawm cov qauv slag | V- piv > 2.0; tsis muaj pob txha tsim ntawm slag rake | V- ratio poob qis dua 1.8 lossis slag zoo li khov / nplaum |
Cov theem pib no yog cov ntsiab lus pib conservative. Txhua tsob nroj yuav tsum kho raws li nws cov qib steel tshwj xeeb thiab kev xyaum ua kom sov.
7. Tus Nqi Them Nqi: Sib piv FeSi thiab SiC ntawm qhov sib npaug
Qhov feem ntau yuam kev hauv kev sib piv tus nqi yog muab piv rau tus nqi ib tuj ntawm FeSi vs. SiC ncaj qha. Qhov kev sib piv no tsis muaj qab hau vim tias cov khoom xa tawm sib txawv ntawm silicon ib tuj. Qhov tseeb metric yogtus nqi ib kilogram ntawm silicon xa mus rau da dej, kho kom rov zoo.
| Parameter | FeSi75 (GB/T 2272-2020) | SiC 90% (GB/T 2480-2022) |
|---|---|---|
| Silicon cov ntsiab lus (wt%) | 72-80% (siv 75% nominal) | 63% muaj Si (90% × 0.70) |
| Hom Si rov qab hauv ladle | 90–95% | 85–92% |
| Siv Si xa tawm (kg ib 100 kg khoom) | 67.5–71.3 kg | 53.6–58.0 kg |
| Cov txiaj ntsig ntxiv | Tsis muaj | ~ 24-27 kg carbon ib 100 kg (tej zaum yuav txo / tshem tawm recarburiser) |
| Exothermic pab | Nruab nrab | Siab dua (Si + C ob leeg oxidise exothermically) |
Cov nqi rov qab yog qhov qhia tau thiab nyob ntawm kev xyaum ntxiv, slag mob, thiab nplawm. Txhua tsob nroj yuav tsum ntsuas nws tus kheej rov qab thaum lub sijhawm sim. Cov pa roj carbon los ntawm SiC tuaj yeem cuam tshuam kev noj cov khoom siv rov ua dua tshiab (feem ntau cov roj av coke lossis graphite); suav nrog qhov offset no hauv koj tus qauv nqi yog tias muaj.
8. Tej Yam Ntxim Saib Ntxim Ua thiab Yuav Ua Li Cas Kom Zam Tau Lawv
Hloov 100% ntawm FeSi ntawm thawj qhov kev sim.SiC ntxiv carbon. Yog tias koj cov qib steel khiav ze rau cov pa roj carbon ntau, kev hloov pauv tag nrho tuaj yeem ua rau tawm - ntawm - cov cua sov tshwj xeeb. Pib ntawm 30% thiab tsuas yog nce ntxiv yog tias carbon kawg - cov ntsiab lus tseem nyob hauv qhov ua siab ntev.
Tsis quav ntsej particle loj.Kev siv 0–1 mm nplua nyob rau hauv ib tug qhib ladle yam tsis muaj nyob rau hauv pub noj txaus txaus ntshai poob 20–30% ntawm cov khoom mus off- roj. Match particle loj rau koj cov khoom siv ntxiv.
Hla carbon- suav nrog.Txhua kilogram ntawm 90% SiC ntxiv kwv yees li 0.27 kg ntawm carbon rau da dej. Yog tias koj qhov kev coj ua FeSi suav nrog kev sib cais ntawm cov khoom siv rov ua dua tshiab, rov xam cov nyiaj siv nyiaj tag nrho ua ntej mus sib hais.
Tsis sampling slag thaum lub sij hawm hloov.Ntxiv SiO₂ los ntawm SiC deoxidation txo cov slag hauv paus. Yog tias V- piv tau qis dhau, desulfurisation raug kev txom nyem. Siv cov qauv slag tom qab 5 thiab 10 sim ua kom sov.
Xaiv tus neeg muag khoom ntawm tus nqi ib leeg.SiC zoo sib txawv ntawm cov neeg tsim khoom. Tsawg- cov khoom siv purity uas muaj cov pa roj carbon ntau lossis SiO₂ cov ntsiab lus yuav ua rau rov qab tsis zoo thiab tuaj yeem qhia cov ntsiab lus tsis xav tau. Hais kom ntau -SGS tshwj xeeb lossis BV daim ntawv pov thawj.
9. Kev xaiv tus neeg muag khoom: Tus Thawj Saib Xyuas Kev Muag Khoom Yuav Tsum Tau Paub Txog Dab Tsi
Thaum nrhiav metallurgical -qib SiC rau steelmaking, soj ntsuam cov neeg xa khoom tawm tsam tsib yam xwm txheej no:
| Kev ntsuas | Vim Li Cas Nws Tseem Ceeb | ZhenAn International |
|---|---|---|
| ISO 9001: 2015 ntawv pov thawj | Xyuas kom cov txheej txheem tswj, batch traceability, thiab zoo tswj system | Ntawv pov thawj |
| Thib peb -kev ntsuam xyuas ib leeg rau kev xa khoom | SGS, BV, lossis sib npaug daim ntawv qhia kev kuaj pom tseeb SiC cov ntsiab lus, dawb C, noo noo, Al, S, N | Txheem SGS- kuaj cov khoom xa tuaj |
| Muaj peev xwm tsim tau txhua xyoo | Cov neeg muag khoom siab dua 50,000 MT / xyoo yuav muaj peev xwm tswj tau ntau ntau - rau - ntau qhov sib xws | 150, 000+ MT hla ob lub hauv paus (30,000 m²) |
| Export cov ntaub ntawv | Kev siv cov chaw nres nkoj, cov thawv ntim khoom thauj khoom, daim ntawv pov thawj ntawm lub hauv paus chiv keeb, Incoterms paub | 100+ lub teb chaws tau txais kev pab |
| Factory audit access | Tus neeg muag khoom zoo siab tos txais rau ntawm - qhov chaw mus ntsib thiab muab cov ntaub ntawv tsim tawm tiag - lub sijhawm | Qhib- Hoobkas txoj cai; qhua txais tos |
ZhenAn International Co., Limited - headquartered ntawm Huafu Commercial Center, Wenfeng District, Anyang City, Henan Province, Suav teb - tau muab ferrosilicon thiab silicon carbide rau mills nyob rau hauv ntau tshaj 100 lub teb chaws txij li thaum 1994. Hu rau peb engineering pab neeg los tham txog koj tej qib steel thiab noj profile.
Cov lus nug nquag
Silicon carbide puas tuaj yeem hloov ferrosilicon hauv steelmaking?
Silicon carbide tuaj yeem hloov pauv ferrosilicon hauv feem ntau EAF thiab BOF converter ua haujlwm. Vim tias SiC muab cov silicon thiab carbon ib txhij, tag nrho kev hloov pauv tsuas yog ua tau thaum qib steel cov pa roj carbon specification tuaj yeem ua kom haum cov pa roj carbon ntxiv. Hauv kev xyaum, 30-50% kev hloov pauv ib nrab yog qhov pib pom zoo. Mills uas ua tau qis-carbon lossis ultra- qis- cov qib carbon yuav tsum khaws ib feem ntawm lawv cov ferrosilicon ntxiv rau kev ywj pheej silicon trim tswj. Kev hloov pauv tag nrho tau raug lees paub hauv ntau lub khw muag khoom hauv Suav teb rau cov pa roj carbon monoxide (Q235, Q345 sib npaug), tab sis txhua tsob nroj yuav tsum ua nws tus kheej cov txheej txheem sim ua ntej cog lus.
Tus nqi npaum li cas tuaj yeem txuag tau los ntawm kev hloov mus rau silicon carbide?
Kev txuag nqi yog nyob ntawm peb qhov sib txawv: tus nqi hauv cheeb tsam sib kis ntawm ferrosilicon (FeSi75, GB/T 2272-2020) thiab metallurgical-qib SiC, freight, thiab cov nroj tsuag silicon tus nqi rov qab. Raws li lig -2025 txog nruab nrab-2026 Suav lag luam kev lag luam hauv tsev, SiC feem ntau tau pauv ntawm 8-15% luv nqi rau ib qho sib npaug silicon unit piv nrog FeSi75. Ib lub zeb siv 500 MT ntawm FeSi ib xyoos twg uas hloov 40% ntawm nws cov silicon units mus rau 90% SiC tuaj yeem pom cov khoom siv txhua xyoo txo qis hauv thaj tsam ntawm US $ 40,000- $ 80,000, raws li cov nqe lus ntawm kev yuav khoom. Nroj tsuag yuav tsum suav cov nyiaj khaws cia siv lawv cov nqi xa tawm tiag tiag ib kilogram ntawm silicon - tsis yog ib tuj ntawm cov khoom. Thov ib daim ntawv teev nqi-tus qauv los ntawm peb pab neeg ua haujlwm rau koj qhov haujlwm tshwj xeeb.
Puas yog silicon carbide haum rau tag nrho cov nroj tsuag steel thiab rauv hom?
Silicon carbide feem ntau siv tau rau hauv cov hluav taws xob arc rauv, cov pa oxygen yooj yim, thiab cov chaw ua haujlwm ladle furnace refining chaw - nyob qhov twg ob qho tib si deoxidation thiab carbon ntxiv yog ib feem ntawm cov txheej txheem. Nws tsis tsim nyog rau: (a) ultra- qis- cov qib carbon steel qhov twg cov pa roj carbon los ntawm SiC yuav xav tau txuas ntxiv decarburisation; (b) induction furnaces melting seem nrog nruj tramp-element ceilings, vim SiC purity yuav tsum tau txheeb xyuas ib lub tshav kub; thiab (c) stainless hlau thiab qib siab - alloy qib uas cov kev qhia tshwj xeeb ntawm silicon nqaim thiab kev tswj hwm cov pa roj carbon monoxide yog qhov tseem ceeb. Rau feem ntau ntawm cov pa roj carbon monoxide, qis- alloy, thiab rebar- qib steel ntau lawm, SiC yog ib qho kev hloov pauv.
SiC qib twg zoo dua rau steelmaking: 88% lossis 90%?
SiC 88% (ua raws li GB / T 2480-2022 rau metallurgical-qib dub silicon carbide) yog qhov kev xaiv pheej yig dua rau ib tuj thiab tsim nyog rau rebar, hlau pas nrig, thiab cov khoom seem uas me me impurity variation tau txais. SiC 90% muab ntau dua silicon rov qab rau ib kilogram ntxiv, qis dua Al₂O₃ thiab cov pa roj carbon monoxide, thiab kev ua kom muaj kev cuam tshuam ntau dua - ua rau nws zoo dua rau qib siab dua - cov nqi qis xws li txias- taub hau steel, pipeline steel, lossis daim ntawv tsheb. Ntau cov nroj tsuag siv 88% rau rebar thiab cov txheej txheem melts thiab cia 90% rau qhov zoo-tseem ceeb cua sov. Qhov kev txiav txim siab yuav tsum yog raws li koj lub hom phiaj steel lub silicon thiab carbon kam rau ua bands thiab tus nqi ib kilogram ntawm silicon recoverable.
Dab tsi particle loj ntawm silicon carbide yuav tsum siv cov nroj tsuag steel?
Particle loj ncaj qha tswj tus nqi tawg thiab rov ua haujlwm. Peb hom bands:0-1 hli- ultrafine, yaj hauv vib nas this; haum rau cov ladle ntxiv nrog rau kev pub noj thiab kev tshem tawm cov plua plav kom txaus (kev pheej hmoo: raug nplua poob rau - roj).1-3 hli- qhov dav dav - qib hom phiaj; balances dissolution ceev (~ 15-30 vib nas this hauv 1,600℃stirred da dej) tiv thaiv plua plav poob. Qhov no yog qhov loj tshaj plaws siv nyob rau hauv ladle furnace operations.10-50 hli- coarser lumps rau BOF converter ntxiv; slower dissolution tiv thaiv oxidation ntxov ntxov nyob rau hauv lub slag txheej. Kev xaiv yuav tsum raug lees paub nrog qhov me me - ntsuas tsob nroj sim ntsuas silicon rov qab ntawm 2, 5, thiab 10 feeb tom qab- ntxiv.
Tus neeg saib xyuas kev yuav khoom yuav tsum ntsuas tus neeg muab khoom silicon carbide li cas?
Ntsuam xyuas ntawm tsib yam: (1)ISO 9001: 2015 ntawv pov thawj- txheeb xyuas cov txheej txheem tswj thiab batch traceability; (2)thib peb-cov ntaub ntawv txheeb xyuas tog(SGS, BV, lossis sib npaug) lees paub SiC cov ntsiab lus, cov pa roj carbon monoxide dawb, noo noo, thiab cov impurities tseem ceeb (Al, S, N) ib qho khoom xa tuaj; (3)ntau lawm scale- cov neeg muag khoom uas muaj peev xwm txhua xyoo siab dua 50,000 MT feem ntau yuav tuav ntau ntau- rau- ntau qhov sib xws; (4)export cov ntaub ntawv- chaw nres nkoj siv, thawv ntim cov duab, ntawv pov thawj ntawm keeb kwm; (5)ntawm - muaj peev xwm txheeb xyuas qhov chaw- seb tus neeg muag khoom puas txais tos tuaj ntsib lub Hoobkas. ZhenAn International ua tau raws li tag nrho tsib: ISO 9001: 2015 tau lees paub, SGS- kuaj cov khoom xa tuaj, 150,000+ MT txhua xyoo muaj peev xwm hla ob lub hauv paus tsim khoom, xa tawm mus rau 100+ lub teb chaws, thiab qhib- lub Hoobkas txoj cai.
Pib koj qhov SiC hloov mus sim nrog kev txhawb nqa
Qhia rau peb txog koj lub tshuab hluav taws xob hom, kev siv FeSi tam sim no, hom phiaj steel qib, thiab cov tonnage txhua xyoo. Peb yuav xa cov nroj tsuag - tus qauv nqi tshwj xeeb, pom zoo qib SiC thiab qhov loj me, thiab cov txheej txheem sim - hauv ib hnub ua haujlwm.
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Cov ntaub ntawv
GB/T 2480-2022 - Pa Abrasive - Silicon Carbide. Standardization Administration ntawm Tuam Tshoj. https://www.codeofchina.com/standard/GBT2480-2022.html (mus txog 2026-08-06)
GB/T 2272-2020 - Ferrosilicon. Standardization Administration ntawm Tuam Tshoj. https://www.chinesestandard.net/PDF.aspx/GBT2272-2020 (mus txog 2026-08-06)
Tsib ASA - "Silicon Carbide Siv hauv Kev Lag Luam Hlau." https://www.fiven.com/markets-applications/metallurgy/steel-industry/ (mus txog 2026-08-06)
Miller thiab Tuam Txhab LLC - "Briquettes thiab Silicon Carbide rau Kev Lag Luam Hlau." https://www.millerandco.com/briquettes-thiab-silicon-carbide-rau-the-steel-industry/ (accessed 2026-08-06)
NIST Standard Reference Database - Silicon Carbide molecular cov ntaub ntawv (molar mass 40.096 g/mol, Si 28.0855, C 12.011). Tsab ntawv xov xwm no tshwm sim thawj zaug https://en.wikipedia.org/wiki/Silicon_carbide (mus txog 2026-08-06)
Li, H. - "Kev thov ntawm SiC hauv Converter Steelmaking." Atlantis Xovxwm. https://download.atlantis-press.com/article/25854169.pdf (mus txog 2026-08-06)
Thawj tsab xov xwm: "Yuav ua li cas hloov Ferrosilicon nrog Silicon Carbide|Tus nqi -Txuag Qhia rau cov nroj tsuag hlau." ZhenAn International. https://www.metal-alloy.com/info/how-to-replace-ferrosilicon-nrog-silicon-carbi-103455477.html ( luam tawm 2026-04-07, accessed 8-2026)
Tag nrho cov duab, cov qauv, thiab cov kev sib npaug ntawm cov tshuaj tiv thaiv tau raug txheeb xyuas tawm tsam cov ntaub ntawv hais txog hnub hloov tshiab. Nqe ntau yog qhia thiab raws li lig-2025 txog nruab nrab-2026 kev lag luam hauv Suav teb raws li qhia los ntawm SunSirs thiab Intratec; tus nqi tiag tiag yog nyob rau hauv kev cog lus sib tham. Yog tias koj txheeb xyuas qhov yuam kev, tiv tauj peb pab pawg engineering kom peb tuaj yeem kho nws.