Dab tsi yog qhov kev ua haujlwm ntawm EAF?

Fais ntawm arc rauv taws ib txwm ua haujlwm ntawm qhov kub ntawm1,500℃thiab 1,800℃(2,732℃F-3,272℃f){{0. Txawm li cas los xij, cov arcs lawv tus kheej tuaj yeem ncav cuag ib qho staggering3,500℃(6,332 Qib F)-Tus tshaj li saum npoo ntawm lub hnub .} Cov kauj ruam yog tsim nyog rau cov neeg tsis huv, thiab ua tiav cov kev qias neeg yuav tsum rau cov hlau zoo {}}

Vim li cas qhov kub thiab txias?

1. MELTING SEEM: HLAU NYOOG A ~ 1,370℃xws li kev sib cais thiab cov hlau tsis muaj zog rau kev sib cais rau kev sib cais {}}
2. Tshuaj lom neeg cov kev tshua: Decarburization (txo cov ntsiab lus carbon) thiab oxidation ntawm phosphorus / sulfur thov kom kub siab tshaj 1,600 degree.
3. Alloying: Ntxiv cov ntsiab xws li chromium lossis npib tsib xee yuav tsum tau hnav zoo li, txhawb nqa cov homogeneity {}}

Ib EAF "cua sov" (ib lub voj voog melting) ua raws li qhov kub thiab txias

. pitging & thawj melt (1,200℃-1,500 degree)

Txias cov ntawv xa mus rau hauv cov cub tawg, thiab arcs tawm tsam cov khoom .} Cov pas dej pas tsim hauv qab cov electrodes {}}

B . Refining Theem (1,600 Degree -1,750 Qib)

Oxygen lis o-rau oxidize impurities, tsim kom sov sov uas boostic sov uas boost

c . tapping (1,700℃-1,800 degree)

Molten Steel tau nchuav rau hauv lub tsev rau theem nrab ua kom . sov tswj ntawm no yog qhov tseem ceeb-txias, thiab cov hlau yuav tsis ntws; kub heev, thiab refractory shlace erode .

Tswj qhov kev kub tshaj plaws lub qhov rai zoo tshaj plaws yog lub siab tawv sib npaug

. overheating

Tej rau txim:

Nrawm electridode kev noj (graphite oxidizes sai dua 600 degree) .

Refractier hnav, raug nqi rau$200,000ib qho cub hluav taws xob tso rau hauv .

Siv hluav taws xob ntau dhau (txhua 50℃overshoot tsa cov nqi zog los ntawm ~ 5%) .

b . underheheing

Tej rau txim:

Tsis tiav melting, ua rau "txias me me" thiab slag entrapment .

Lub sijhawm ntev dua, txo qis kev nqus .

Tsis zoo alloy sib xyaw, ua rau tawm tsam-spec steel .

c .} thermal gradients

Cov cua sov tsis ncaj tau tsim hotspots thiab cov aav txias, kev nyuaj siab lub cub hluavtaws thiab ua rau zoo tsis sib xws {}}

Niaj hnub tam sim no EAFs cia siab rau kev sib xyaw ntawm cov khoom siv kho vajtse, software, thiab tus neeg teb xov tooj kev txawj ntse kom tswj cov cua nab kuab:

. sensors & ntsuas kev ntsuas tshuab

1. Hluav taws xob pyrometers: Ntsuas ntsuas Molten kub los ntawm kev pom qhov (qhov tseeb: ± 10 degree) .
2. Sub-lance thermocouples: immersed probes rau kev nyeem ncaj qha (siv thaum tapping) .
3. Cov koob yees duab infrared: soj ntsuam refractory hotspots los tiv thaiv kom tsis txhob tawg.

b . dynamic zog tswj

1. Transformer tapping: kho cov hluav taws xob kom ruaj khov arc ntev thiab tshav kub .
2. Oxygen & Carbon txhaj tshuaj: Boosts qhov kub hnyas: {{{}}}} {{}} 1 kg ntawm lub zog).

c . Ib tug tsav dav hlau uas tsav

Cov ntsiab lus zoo liSiemens 'EAF tshav kub kubkwv yees qhov kub thiab txias siv cov ntaub ntawv keeb kwm thiab kho cov hwj chim / cov nqi oxygen hauv lub sijhawm tiag tiag .

Kev Tswj Kub Ncaj Ncees Ncaj Ncees Kev Ua Haujlwm .}}} Rau mid-Sized EAF tsim 1 lab tons / xyoo:

Tau qhov twg los: u {{. s} s}. Department of Zog, EAF Cov Kev Coj Zoo Tshaj (2022)

Ib sab qaum teb Asmeskas mini-zeb tsim cov rebar hloov kho nws tus 150- nyhav ib tuj nrog:

1. REO-SIJHAWM SLAG tsom xam kom zoo-tune txhaj tshuaj .
2. Kaw-voj dej txias rau cov electrodes thiab ru tsev .
3. Kev kwv yees algorithms kom cia siab seem viRiability .

Cov txiaj ntsig:

Zog siv poob qis los ntawm380 kwh / tujrau320 kWh / tuj.

Coj mus rhaub-rau-kais sijhawm txo los ntawm12 feebRau cua sov .

Cov nyiaj khaws txhua xyoo:$ 2.8 lab.

Qhov kev tshawb nrhiav rau kev tswj kom sov kub yog tsav tsheb tawg:

. hydrogen-based cua sov

Kev sim siab siv hydrogen burners (hloov cov roj av) tsom rau kev txiav cov pa tawm thaum tuav xyuas kom txog li 1,700 degree.

b . Electromagnetic nplawm

Tsim kev lees paub rov qab los rau homogenize Molten Hlau Temps, txo Gradients los ntawm 40%.

c . chead menyuam ntxig

Faib virtual rauv taws ua qauv simuling tshav kub, pub cov neeg ua haujlwm kom ntsuas cov xwm txheej uas tsis muaj kev pheej hmoo ntawm .

Raws li cov phiaj xwm steel

1. Khib nyiab kub rov qab: kev coj ua pa tawm (ntawm ~ 1,200 degree) los tsim cov chav khov lossis preheat scrap .
2. Low-temp Alloy Tsim: Tshiab cov cim tshiab steel uas yuav tsum muaj zog tsawg dua rau melt .
3. AI + IOT kev koom ua ke: ntug computing txheej txheem txheej txheem cov ntaub ntawv ntawm-site, slashing teb lub sij hawm .

Kev ua haujlwm ntawm qhov kub ntawm cov hluav taws xob ua hluav taws xob tsis yog tus nqi qis dua, thiab cov cuab yeej siv hluav taws xob zoo, thiab cov khoom siv hluav taws xob ntev dua, precision them tawm .

NtawmXi'an huacang, we design EAF systems that marry thermal precision with rugged reliability. Whether you're melting scrap or crafting specialty alloys, our solutions ensure your furnace stays hot enough to perform-but cool enough to last. Explore our innovations athc-rauv . com.

Xi'an Huachan Metallurgical Technology Co ., ltd .

Chaw Nyob:Chav tsev 9, lub tsev C / Vanmetropolis, tsis muaj .1 Tangyan Rd. gaoxin koog tsev kawm ntawv, Tuam Tshoj, Shaanxi xeev, Suav

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