Dab tsi yog Cov Txheej Txheem Ntau Lawm Ntawm Non Oriented Silicon Steel

Molten hlau yog pre-desulfurized, thiab theem nrab desulfurization los ntawm kev ntxiv Ca0 ntxiv rau CaF: flux los yog lub ntiaj teb tsis tshua muaj cov ntsiab lus thiab calcium thaum lub tshuab converter. Lub boiling molten steel yog decarburized los ntawm lub tshuab nqus tsev kho mob thiab ces ntxiv desulfurized. Ferrosilicon nrog qis titanium thiab zirconium cov ntsiab lus yog siv rau alloying. Thaum nruam casting, nws raug kaw nrog argon roj thiab nplawm los ntawm electromagnetism. Lub billet yog kub xa mus rau kub dov zeb thiab muab tso rau hauv ib lub qhov txias txias. Lub pob zeb casting saum toj no 350C yog loaded rau hauv lub qhov cub cua sov thiab rhuab mus rau 1200 ± 20C, qhov kawg dov kub yog 850 ± 20C, thiab coiling kub yog 600 ± 20C. Lub thickness ntawm kub dov phaj yog 2.0 ~ 2.5 hli. Hlau nrog silicon cov ntsiab lus siab dua 2 feem pua ​​​​feem ntau siv txoj kev txias dov, uas yog normalized los ntawm 900 ~ 1050C (1 ~ 3min) ua ntej txias dov, thiab ces txias dov los ntawm ib tug 20- siab dov zeb. Cov txheej txheem txias txias thib ob kuj tuaj yeem siv tau, thiab tom qab thawj zaug txias dov, nws yog annealed nyob rau hauv nruab nrab ntawm 830 ~ 870C (1 ~ 3min) nyob rau hauv lub cub tawg tas li nrog 5 feem pua ​​~ 20 feem pua ​​​​H2 ntxiv rau N2 cua, thiab tom qab ntawd txias-dov mus rau lub thickness ntawm cov khoom tiav los ntawm 8 feem pua ​​~ 10 feem pua ​​tseem ceeb deformation. Qhov kawg annealing feem ntau yog rhuab mus rau 850 ~ 860C (2 ~ 4min) annealing nyob rau hauv lub cub tawg tas mus li nrog 20 feem pua ​​​​H2 ntxiv rau N2 cua. Yog tias yuav tsum tau decarburization, nws yog qhov zoo tshaj plaws los siv ob-theem annealing, sab pem hauv ntej yog decarburized los ntawm 800 ~ 850C hauv qhov chaw ntub dej, thiab ntu tom kawg yog annealed ntawm qhov kub siab dua rau lub sijhawm luv luv hauv qhov chaw qhuav los txhawb cov kev loj hlob ntawm nplej. Qhov nro ntawm lub cub tawg thaum lub sij hawm annealing yog qhov zoo tshaj plaws tswj hauv qab 2.9N / hli, uas tuaj yeem txo qhov sib nqus anisotropy ntawm steel phaj, thiab qhov piv ntawm longitudinal thiab transverse hlau poob (P15) ntawm cov khoom yog 1.1 ~ 1.3. Tom qab annealing, steel phaj yog coated nrog ib tug semi-organic insulating txheej. Cov motors loj uas yuav tsum tau muaj kev tiv thaiv interlayer kuj tuaj yeem coated nrog inorganic ntsev insulating txheej.