Cov hlau yog refined, melted thiab dov los ntawm cov txheej txheem zoo ib yam li cov siv rau carbon steels. Txawm li cas los xij, kev tswj hwm ntau dua yog siv nyob rau txhua theem ntawm kev tsim khoom. Lub sij hawm hluav taws xob yog hais txog kev siv cov hlau tsis yog rau txoj kev siv hauv lawv cov melting. Qee lub zeb siv lub tshuab hluav taws xob rau melting cov hlau no, nrog rau cov kev tsim khoom niaj hnub xws li kev nruam nruam thiab Argon Oxygen Decarburization (AOD) pab kom paub tseeb tias zoo ib yam.
Slabs ntawm hluav taws xob hlau yog dov nyob rau hauv high kub mus rau hauv hnyav gauge coils. Cov coils yog cov kua qaub kom tshem tawm cov nplai.Cov khoom yog ces txias dov mus rau qhov kawg gauges nyob rau hauv cov roj daim ntawv thiab annealed.Oriented Hluav Taws Xob Hlauyog txias txo thiab raug rau ntau yam kev ua cov kauj ruam uas yog ib qho tseem ceeb rau kev txhim kho lawv nyiam grain orientation.
CRNGO Non grain oriented silicon steel
COMPOSITION NTAWM ELECTRICAL STEELS
Flat-rolled hluav taws xob steels yog tsim los ua kom tau raws li cov cuab yeej sib nqus es tsis yog cov tshuaj lom neeg tshwj xeeb. Cov yam ntxwv sib nqus yog thawj qhov tseem ceeb thiab nyob ntawm kev ua haujlwm nrog rau cov tshuaj muaj pes tsawg leeg. Txawm li cas los xij, txhawm rau qhia txog ntau yam ntawm cov ntaub ntawv tseem ceeb thiab qhia tias lawv feem ntau raug cais raws li kev muaj pes tsawg leeg, cov tshuaj ntsuam xyuas ntawm ob peb ntawm cov ntaub ntawv no tau teev tseg.
Silicon yog qhov tseem ceeb ntawm cov hlau alloying hauv hluav taws xob hlau. Nws yog ntxiv vim nws ua rau kom lub ntim resistivity ntawm cov hlau thiab yog li txo cov eddy tam sim no tivthaiv ntawm core poob. Silicon muaj txiaj ntsig zoo hauv qhov kev hwm no ntau dua li lwm cov khoom uas tuaj yeem yooj yim ntxiv. Silicon muaj qhov txiaj ntsig ntxiv rau qhov nws cuam tshuam rau cov qauv nplej ntawm cov hlau thiab yog li muab qee qhov kev txhim kho tseem ceeb los ntawm nws qhov txo qis ntawm hysteresis tivthaiv hauv cov hlau tsis muaj hluav taws xob. Tsis tas li ntawd, qee qib ntawm silicon yuav tsum tau tswj kom tsis txhob muaj kev hloov pauv thiab yog li pab cov txheej txheem siv lead ua hauv kev taw qhia hluav taws xob steels.
Nyob ntawm seb hom khoom, lwm cov ntsiab lus tseem ceeb ntxiv rau cov hlau hluav taws xob yog aluminium thiab manganese. Txhua qhov no feem ntau yog ntxiv rau cov nyiaj tsawg dua 1.0% thiab ntau dua ntawm 0.1 thiab 0.5%. Cov ntsiab lus no tau ntxiv tsuas yog rau lawv cov txiaj ntsig metallurgical es tsis yog rau cov txiaj ntsig ntawm lub cev xws li ntim resistivity. Lawv kuj muaj txiaj ntsig zoo rau cov qauv ntawm cov hlau, yog li ua rau txo qis ntawm hysteresis tivthaiv ntawm cov tub ntxhais poob.
Lwm cov ntsiab lus muaj nyob rau hauv hluav taws xob steels tab sis tseem ceeb impurities thiab pom tsuas yog nyob rau hauv seem seem. Cov pa roj carbon monoxide yog ib qho kev hloov pauv hauv cov ntsiab lus ntawm qhov tam sim no hauv cov yaj mus rau qhov kawg ntawm cov khoom. Kev kho cua sov tshwj xeeb yog muab thaum lub sijhawm ua haujlwm zeb kom txo qis cov ntsiab lus ntawm cov khoom ua tiav kom muaj nuj nqis tsawg heev. Qhov kev tshem tawm ntawm carbon no tshwm sim thaum lub sij hawm annealing ntawm cov qib semi-processed los ntawm cov neeg siv khoom.
Nyob rau hauv cov ntaub ntawv ntawm grain oriented steels, impurities xws li sulfur thiab nitrogen yuav tsum tau pib los pab txhim kho qhov kawg siv lead ua orientation, tab sis cov ntsiab lus no ces muab tshem tawm nyob rau hauv lub kawg anneal. Txij li qhov sib nqus zoo ntawm cov hlau hluav taws xob yog qhov ua haujlwm ntawm kev tshuaj ntsuam xyuas thiab kev ua cov zeb, tej zaum yuav muaj qee qhov sib tshooj ntawm cov qib raws li qhia hauv Table 2. Txawm li cas los xij, cov tub ntxhais poob feem ntau yuav sib txawv nrog cov ntsiab lus silicon, nrog rau kev ua silicon ua kom zoo dua qub. poob qib tab sis ua rau txo qis ntawm siab induction permeability.
