Dab tsi yog hluav taws xob arc rauv (EAF)? Daim ntawv qhia rau kev ua haujlwm steelmaking ua tau zoo

Txheej txheem hluav taws xob tshuab hluav taws xob (EAF) yog ib qho tseem ceeb ntawm cov steelmaking, ua kom meej thiab ua kom meej thiab ua kom meej thiab ua kom zoo nkauj) tapping {{}}} Txhua theem tseem ceeb hauv cov txheej txheem ntawm cov hlau hluav taws xob ua kom tiav tau cov txheej txheem hluav taws xob ua kom tau piav qhia hauv qab no .

Cov Ntsiab Lus Tseem Ceeb:
Dab tsi yog hluav taws xob arc rauv (EAF)? Daim ntawv qhia rau kev ua haujlwm steelmaking ua tau zoo
Them lub cub tawg:
Qhov no yog thawj theem uas raw cov ntaub ntawv, feem ntau yog cov khoom siv hlau, tau them rau hauv cov cub tawg .
Cov SCRAP hlau feem ntau yog tov nrog limone kom pab ua cov nplais, uas tshem tawm impurities .
Lub cub hluav taws xob yog tsim los daws cov khoom loj, suav nrog slabs, ci thiab crushed scrap .
Tsim nyog them ua kom muaj txiaj ntsig zoo melting thiab minimizes zog kev siv hluav taws xob .
Melting:
Thaum lub cub hluav taws xob yog them, hluav taws xob tau qhia rau hauv cov hlau thiab ARC yog tom qab ntawd tsim ntawm electrode thiab cov hlau.
Lub tshuab hluav taws xob ua rau muaj kub heev, txog li 3275℃f (1800 degree), uas tau qeeb melts cov seem ntawm cov ntawv sib xyaw hlau hlau.
Cov txheej txheem melting yog lub zog ua kom muaj zog, yuav tsum muaj kwv yees li 350 txog 370 kWh li ib tuj ntawm seem hlau.
Oxygen yuav raug txhaj rau theem no los txhim kho cov txheej txheem melting thiab tshem tawm impurities {}}
Refining:

Tom qab melting, molten hlau yog kho nws cov tshuaj muaj pes tsawg leeg thiab tshem tawm cov impurities .
Alloy cov ntsiab lus yuav raug muab ntxiv kom ua tiav qib xav ntawm cov hlau .
Cov txheej txheem ua kom zoo nkauj ua kom ntseeg tau tias cov khoom kawg tau ua raws cov qauv tshwj xeeb, suav nrog cov ntsiab lus carbon monoxide, suav nrog cov ntsiab lus carbon monoxide, suav nrog cov khoom siv roj carbon monoxide! {}
Kev tswj qhov kub thiab txias thaum lub sij hawm ua kom kub yog qhov tseem ceeb kom tsis txhob muaj qhov tsis xws luag thiab xyuas kom ntseeg tau cov kev sib luag ntawm.
Deslagging:

Slag: slag yog byproduct ntawm lub melting thiab refining txheej txheem uas tau muab tshem tawm ntawm cov hlau ntawm cov hlau molten .
Slag muaj impurities xws li oxides, phosphorus, thiab leej faj uas sib cais los ntawm cov hlau .
Deslagging feem ntau yog ua los ntawm tilting lub cub tawg lossis skimming lub slag siv cov cuab yeej tshwj xeeb {}}
Kev tshem tawm slag kom zoo nkauj kom ntseeg tau tias qhov kawg steel cov khoom lag luam yog huv thiab dawb ntawm impurities .
Tapping:

Qhov kev ua haujlwm kawg yog kom hliv lub tshuab ua kom zoo dua qub hlau los ntawm cov cub tawg rau hauv lub tsev ua haujlwm rau hauv lub tsev lossis siv tshuab .
Cov yuav tsum ua kom zoo kom tsis txhob muaj kev txau thiab kom ntseeg tau tias qhov kub thiab muaj pes tsawg thiab kev sib xyaw ntawm Molten Steel yog kho .
Cov hlau Molten tau thauj mus ntxiv ua ntxiv, xws li nruam casting lossis ingot casting, los tsim cov hlau ua tiav, los ua tiav cov hlau .
Lub cub hluav taws xob yog tom qab npaj rau tom ntej mus thiab them rov qab pib dua .
Lub zog thiab kev saib xyuas zoo:

Piv rau cov pa hluav taws kub ua kom tawg, EAF tus txheej txheem yog lub zog zoo vim tias nws siv hluav taws xob feem ntau {}}
Niaj hnub tam sim no EAFs tau nruab nrog cov tshuab tswj qhov kub uas ua kom zoo siv thiab txo cov nqi ua haujlwm .
Lub peev xwm rov qab ua dua cov hlau ua kom muaj EAF ua tus phooj ywg ib puag ncig, txo qhov xav tau rau cov khoom siv raw thiab muab pov tseg kom tsawg {}}
Kev hloov pauv hauv EAF txheej txheem:

Thaum lub sijhawm feem ntau EAF siv lub voj voog kais, xws li EAsPle uas tsis siv EAF tsis siv hluav taws xob thiab nqus dej .
Cov kev hloov pauv no tau siv rau cov ntawv thov tshwj xeeb, xws li tsim cov kev siab zoo alloys lossis tshwj xeeb hlau qib.
Los ntawm kev nkag siab cov theem no, khoom siv thiab cov khoom yuav khoom tuaj yeem txheeb xyuas qhov yuav tsum tau ua kom zoo thiab Eas-ense zoo steel profession {}}