Kuwunika kwa tinthu ta maginito ndi njira yodziwira yomwe imagwiritsa ntchito zida za ferromagnetic (monga chitsulo, chitsulo, cobalt, faifi tambala, ndi zina) kuti ikhale ndi maginito. Pamene akuponya zitsulondi mphamvu maginito ndi maginito, ngati pali chilema perpendicular kwa magnetization malangizo pamwamba kapena pafupi ndi pamwamba kuponya, mbali ya maginito mizere zidzasefukira pano, kupanga kutayikira maginito maginito kupanga mizati yatsopano maginito. Panthawi imeneyi, pamwamba pa kuponyera amatsanuliridwa ndi inaimitsidwa maginito madzi kapena owazidwa youma maginito ufa, ndi maginito ufa particles kusonyeza kuda zilema chifukwa kukopa maginito mizati.
Poyang'ana maginito a maginito pamapangidwe, mphamvu ya maginito yamphamvu nthawi zambiri imapangidwa ndi mphamvu. Malinga ndi njira zosiyanasiyana zopangira mphamvu komanso ma waveform apano, njira za magnetization zitha kugawidwa kukhala maginito mwachindunji ndi maginito osalunjika, maginito a DC ndi maginito a AC. Malingana ndi momwe maginito amapangidwira komanso njira yopangira mphamvu ya maginito, pali njira za magnetization zomwe zingathe kugawidwa mu circumferential magnetization ndi longitudinal magnetization, magnetization mosalekeza ndi magnetization yotsalira. Poyang'ana kwenikweni, mazikowo amatha kusankha njira zosiyanasiyana za AC ndi DC zophatikiza maginito malinga ndi kukula kwa kuponyera, kugawa kwa zolakwika ndi zina.
Magnetic ufa ndi zinthu zomwe zimapanga maginito ndikuwonetsa zolakwika, ndipo zinthu zake nthawi zambiri zimakhala ndi chitsulo chachitsulo chapamwamba kwambiri chokhala ndi maginito amphamvu, otsika kwambiri komanso otsika kwambiri, monga ferric oxide ndi ferric oxide. The tinthu kukula kwa maginito ufa makamaka 80 - 300 μm kwa njira kuyezetsa ndi youma maginito ufa. Pakuti yonyowa ndi fulorosenti anayendera, tinthu kukula kwa maginito ufa kungakhale bwino. Zowonongeka zazing'ono zoponya ziyenera kusankha ufa wabwino wa maginito. Maonekedwe a ufa maginito ayenera kukhala makamaka ozungulira maginito ufa, ndiyeno chikufanana ndi gawo lina la Mzere maginito ufa.
Maginito ufa kuyimitsidwa ndi chisakanizo cha ufa maginito ndi kubalalitsidwa mu gawo lina. Voliyumu kachigawo wa wamba maginito ufa ndi 1.3% - 3.0%, ndi voliyumu kachigawo fulorosenti maginito ufa ndi 0.1% - 0.3%. The kubalalitsidwa madzi akhoza kusankhidwa kwa madzi wothandizira, palafini ndi osakaniza palafini ndi thiransifoma mafuta, amene amatha kupewa dzimbiri, kunyowetsa ndi defoaming.
Makhalidwe ndi kuchuluka kwa ntchito yowunikira maginito:
1. Kuyang'ana kwa tinthu ta maginito kumakhala ndi chidwi kwambiri pakuzindikira zolakwika zapamtunda kapena pafupi ndi pamwamba, koma kukhudzika kwake kumachepa mwachangu ndi kuchuluka kwa chilema.
2. Njira yodziwikirayi imagwira ntchito pozindikira zinthu za ferromagnetic, koma sizingagwiritsidwe ntchito popanga maginito osapanga maginito monga zitsulo zosapanga dzimbiri za austenitic.
3. Zida zoyendera maginito tinthu tating'onoting'ono ndizosavuta, ndipo chida chonyamula ndichosavuta kugwiritsa ntchito pamalowo.
4. Magnetic tinthu anayendera ali ndi zofunika apamwamba pa roughness wa kuponya pamwamba.
5. Pambuyo poyang'anitsitsa kuponya, m'pofunika kuyeretsa pamwamba ndikuchotsa ufa wotsalira wa maginito mu nthawi. Ngati ndi kotheka, chithandizo cha demagnetization chimafunika.
Nthawi yotumiza: Sep-24-2022