✧ Mwachidule
Maginito a NIB amabwera m'makalasi osiyanasiyana, omwe amafanana ndi mphamvu ya maginito awo, kuyambira N35 (yotsika kwambiri komanso yotsika mtengo) mpaka N52 (yamphamvu kwambiri, yokwera mtengo kwambiri komanso yosasunthika). Maginito a N52 ndi pafupifupi 50% yamphamvu kuposa maginito a N35 (52/35 = 1.49). Ku US, ndizofanana kupeza maginito ogula mumtundu wa N40 mpaka N42. Pakupanga voliyumu, N35 imagwiritsidwa ntchito nthawi zambiri ngati kukula ndi kulemera sikuli kofunikira chifukwa ndizotsika mtengo. Ngati kukula ndi kulemera ndizofunikira kwambiri, masukulu apamwamba amagwiritsidwa ntchito. Pali mtengo wa maginito apamwamba kwambiri kotero ndizofala kwambiri kuwona maginito a N48 ndi N50 omwe amagwiritsidwa ntchito popanga motsutsana ndi N52.
✧ Kodi Makalasi Amatsimikiziridwa Bwanji?
Maginito a Neodymium kapena omwe amadziwika kuti NIB, NefeB kapena maginito apamwamba kwambiri ndi maginito amphamvu kwambiri komanso omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi. Ndi mankhwala a Nd2Fe14B, maginito a neo ali ndi mawonekedwe a tetragonal crystalline ndipo makamaka amapangidwa ndi zinthu za neodymium, Iron ndi Boron. Kwa zaka zambiri, maginito a neodymium asintha bwino mitundu ina yonse ya maginito okhazikika kuti agwiritsidwe ntchito mofala mu mota, zamagetsi ndi zida zina zatsiku ndi tsiku. Chifukwa cha kusiyana kwa kufunikira kwa maginito ndi kukoka mphamvu pa ntchito iliyonse, maginito a neodymium amapezeka mosavuta m'makalasi osiyanasiyana. Maginito a NIB amapangidwa molingana ndi zinthu zomwe amapangidwa. Monga lamulo lofunikira, kukweza magiredi, maginito adzakhala amphamvu.
Neodymium nomenclature nthawi zonse imayamba ndi 'N' yotsatiridwa ndi manambala awiri mkati mwa mndandanda wa 24 mpaka 52. Chilembo 'N' m'magiredi a neo maginito chimayimira neodymium pamene manambala otsatirawa akuyimira mphamvu yayikulu kwambiri ya maginito enieni omwe amayezedwa mu 'Mega Gauss Oersteds (MGOe). Mgoe ndiye chizindikiro choyambirira cha mphamvu ya maginito aliwonse a neo komanso kuchuluka kwa maginito opangidwa ndi iyo mkati mwa zida zilizonse kapena kugwiritsa ntchito. Ngakhale mtundu woyambirira umayamba ndi N24 komabe, magiredi otsika sakupangidwanso. Momwemonso, ngakhale mphamvu yayikulu yotheka ya NIB ikuyembekezeka kufika ku N64 komabe kuchuluka kwamphamvu kotereku sikunafufuzidwebe pamalonda ndipo N52 ndiye giredi yapamwamba kwambiri yomwe ikupezekapo mosavuta kwa ogula.
Zilembo zina zilizonse zomwe zikutsatira girediyo zimasonyeza kutentha kwa maginito, kapena mwina kusakhalapo kwake. Kuchuluka kwa kutentha komwe kumagwiritsidwa ntchito ndi Nil-MH-SH-UH-EH. Zilembo zomalizazi zikuyimira kutentha kwakukulu komwe kumagwira ntchito mwachitsanzo kutentha kwa Curie komwe maginito amatha kupirira asanataye mphamvu yake ya maginito kwamuyaya. Maginito akagwiritsidwa ntchito kupitirira kutentha kwa Curie, zotsatira zake zimakhala kutayika kwa mphamvu yotulutsa, kuchepa kwa ntchito komanso kutayika kwa mphamvu ya maginito kosatha.
Komabe, kukula ndi mawonekedwe a maginito aliwonse a neodymium zimathandizanso kwambiri pakugwira ntchito bwino kutentha kwambiri. Komanso, chinthu china choyenera kukumbukira ndichakuti mphamvu ya maginito abwino imafanana ndi chiwerengerocho, kotero kuti N37 ndi yofooka ndi 9% yokha kuposa N46. Njira yodalirika kwambiri yowerengera giredi yeniyeni ya maginito a neo ndikugwiritsa ntchito makina oyesera graph ya hysteresis.
AH Magnet ndiwosowa maginito padziko lapansi omwe amagwira ntchito pofufuza, kupanga, kupanga ndi kutumiza maginito apamwamba kwambiri a sintered neodymium iron boron, magiredi 47 a maginito wamba a neodymium, kuyambira N33 mpaka 35AH, ndi GBD Series kuyambira 48SH mpaka 45AH zilipo. Ngati mukufuna zinthu zathu, lemberani ife tsopano!
Nthawi yotumiza: Nov-02-2022