Nyob rau hauv lub ntiaj teb ntawm steelmaking, qhov twg fiery rauv thiab ci ntsa iab maestro {} Cov qib haum rau aerospace, tsheb, thiab kev siv khoom.} Kuv tsis sib xws, nkag siab LRF lub hauv paus ntsiab lus tsis yog sib tham.
Dab tsi yog ib tug poj niam refining rauv (lrf)
Qhov "spa kev kho" rau Molten Steel
Lub LRF yog ib qho kev ua kom zoo dua qub tsim los ua kom muaj cov khoom siv hlau ua ke, txias dua li cov khoom siv hlau ua kom sib luag
Cov hom phiaj tseem ceeb ntawm LRF:
- Homogenization: Tshem tawm qhov kub thiab cov lej gradients .
- deoxidation: tshem tawm cov pa oxygen ntau dhau los tiv thaiv porosity .
- Desulfurization: txo cov ntsiab lus sulfur mus rau qis li 0 . 001%.
- alloy hloov kho: Ntxiv cov nqi kho kom zoo xws li CR, ni, lossis mo .
- Kev Tshem Tawm Kev Tshem Tawm: Sawb tsis yog-metallic impurities (e ., alila) .
Kev lom zem qhov tseeb: Ib qho LRF lub voj voog tuaj yeem txhim kho cov hlau tawm los ntawm 10-15% thaum txo cov khoom siv tsis xws li ntawm 90% (2020) {{4 4}}
Yuav ua li cas ua LRF ua haujlwm
Theem 1: Hloov mus rau hauv lub tsev
Tom qab pib ua thawj, Molten Steel tau muab rau hauv cov refactory-lined ladle . ladle ces txav mus rauLF Refining RauvChaw nres tsheb hauv qab los yog tsheb nqaj hlau .
Theem 2: Argon plastring - lub plawv ntawm refining
- Kev Txhaj Tshuaj Roj: Argon roj yog tshuab los ntawm cov ntxeem tau ntsaws ntawm lub ladle lub hauv paus .
- tsim kev tsim kho cua, sib tov npau npau .
- floats impurities rau saum npoo li slag .
- Txhim kho cov tshuaj tiv thaiv kinetics rau kev kho kom haum tshuaj.
PRO DAIL: Kev Zoo Tshaj Argon Flow Cov Nqi Sib Tw Ntawm '50 -150 nl / min '.
Theem 3: Cua sov nrog Electrodes
- Graphite electrodes: qis rau hauv lub ladle los tsim hluav taws xob arc .
- them nyiaj rau cov cua sov poob thaum ua kom muaj .
- tswj cov hlau kub ntawm 1,550-1650 degree.
- enables siab heev termal tswj (± 5 degree) .
Theem 4: Tshuaj Ua Si
Cov neeg ua haujlwm ntxiv cov reagents los ntawm cov khoom noj khoom haus tshiab:
- desulfurizers: calcium alumininate, txiv qaub, thiab fluorsparter .
- Deagidizers: Aluminium, silicon manganese .
- alloys: ferriachrome, ferronickel, vanadium .
Theem 5: Kev Tsim Nyog thiab Tshem Tawm
- ib qho caluminate-raws li cov txheej txheem sleag, nqus cov impurities {}}
- slag yog siv tshuab raked lossis hliv tawm ua ntej ua rau .
Theem 6: Kev Ntsuas thiab Kev Ntsuam Xyuas
- Kev ntsuas kev ntsuas hluav taws xob ntsuas kub thiab oxygen ua haujlwm .
- Spectrometers Txheeb xyuas cov tshuaj muaj pes tsawg leeg hauv lub sijhawm tiag tiag.
Cov ntsiab lus tseem ceeb ntawm LRF system
| Ib feem | Rooj mov |
| Refractory Tshua | Tuav hlau molten; Lined nrog Alumina-Markesia Cib |
| Argon purging System | Muab cov roj mus rau hauv qab turyères lossis ntxeem tau plugs |
| Hluav Taws Xob | Lowers / Nce Graphite Electrodes rau Arc Cua Sov |
| Alloy Feeder | Dispenses muaj ntau ntawm cov quav ntxiv los ntawm hoppers |
| Cov Hood Wood | Ntes cov pa taws thiab cov particulation emissions |
| Caw Kaw Lus | Cov saib xyuas kub, roj txaus, thiab kev siv tshuaj pov rau plc |
Vim li cas lrfs yog qhov tsis tseem ceeb hauv kev niaj hnub steelmaking niaj hnub
a) zoo txhim kho
- ultra-low sulfur cov hlaus: Qhov tseem ceeb rau cov raj xa dej thiab sab nrauv platform .
- Kev nyiam huv: Txo cov kev suav nrog cov kabmob steels (e ., skf qib 3) {4 4}}
- Muaj xwm txheej: ua tiav kom nruj kev tsim kho ({{. 02% rau carbon).
b) tus nqi nyiaj
- Hloov tus nqi ua kom muaj peev xwm ua kom sov rau cov kev hloov kho kom haum rau tag nrho .
- minimizes scrap tiam vim yog tawm-spec steel .
C) Cov txiaj ntsig ib puag ncig
- Slag bypeProducts tuaj yeem rov ua dua tshiab lossis cov ntaub ntawv rape .
- txo kev siv zog muab piv rau txuas EAG ua kom zoo nkauj .
Lrf vs .}} lwm cov txheej txheem theem nrab
| Kev ua | Thawj siv | Qhov Txwv Tseem Ceeb |
| Txhais | Txhim kho dav (s, o, alloys) | Lub nqus plua plav tsawg tsawg |
| VD / vod | Kev sib sib zog nqus decarbonancation, hydrogen tshem tawm | Cov peev txheej siab dua / kev ua haujlwm raug cai |
| CAS-OB | Kev ua kom nrawm nrawm, kev hloov kho kom sov | Tsis tshua ua tau zoo rau desulfurization |
Kev nrhav hauv LRF thev naus laus zis
- Ai-powered Control: tshuab kev kawm kwv yees kev ua kom zoo nkauj argon ntws thiab alloy ntxiv.
- Hybrid Cua Sov: ua ke sib txuas cov hluav taws xob sib xyaw nrog cov pa hluav taws xob kom sai dua qhov rov qab.
- Cov refractories ntsuab: Cov kab hlau tsis pub dawb los txo qis kev emissions .
Kev Lag Luam Kev Lag Luam: Thoob Ntiaj Teb Lrf Kev Ua Lag Luam yog npaj los ntawm kev cog lus ntawm 2030, uas tau tsav tsheb (HSLA)
Xaiv txoj cai LRF rau koj lub chaw
- Muaj peev xwm: LRFs feem ntau lis 50-300 tons ib qho cua sov .
- Qeb kev hloov kho tshuab: semi-automatic vs. muaj kev sib xyaw ua ke {}}
- Refractory Lub Neej: Cov kab ua tiav siab kawg 80-120 tiv thaiv 40-60 rau cov qauv khoom .
Cov chav pw ua kom zoo nkauj yog qhov uas cov khoom siv roj ua kom tiav rau cov khoom siv skyscrapers, lrfs}, lrfs}}} Cov khoom lag luam txaus siab rau kev tso tawm hauv hnub no
Ntawv Sawv cev
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Tiv Tauj Peb
Xi'an Huachan Metallurgical Technology Co ., ltd .
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