✧ Chidule
Maginito a NIB amabwera m'magiredi osiyanasiyana, omwe amagwirizana ndi mphamvu ya mphamvu zawo zamaginito, kuyambira N35 (yofooka komanso yotsika mtengo kwambiri) mpaka N52 (yamphamvu kwambiri, yokwera mtengo kwambiri komanso yofooka kwambiri). Maginito a N52 ndi amphamvu pafupifupi 50% kuposa maginito a N35 (52/35 = 1.49). Ku US, nthawi zambiri maginito amagetsi amagulidwa pakati pa N40 ndi N42. Pakupanga voliyumu, N35 imagwiritsidwa ntchito nthawi zambiri ngati kukula ndi kulemera sikofunikira chifukwa ndi kotsika mtengo. Ngati kukula ndi kulemera ndi zinthu zofunika kwambiri, nthawi zambiri maginito apamwamba amagwiritsidwa ntchito. Pali mtengo wapamwamba pamtengo wa maginito apamwamba kwambiri kotero ndizofala kuwona maginito a N48 ndi N50 akugwiritsidwa ntchito popanga poyerekeza ndi N52.
✧ Kodi Giredi imasankhidwa bwanji?
Maginito a Neodymium kapena omwe amadziwika kuti NIB, NefeB kapena maginito akuluakulu ndi omwe amagwiritsidwa ntchito kwambiri padziko lonse lapansi. Ndi kapangidwe ka mankhwala ka Nd2Fe14B, maginito a neo ali ndi kapangidwe ka kristalo ka tetragonal 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 kwambiri m'ma mota, zamagetsi ndi zida zina zosiyanasiyana za moyo. Chifukwa cha kusiyana kwa kufunikira kwa maginito ndi mphamvu yokoka pa ntchito iliyonse, maginito a neodymium amapezeka mosavuta m'maginito osiyanasiyana. Maginito a NIB amayesedwa malinga ndi zinthu zomwe apangidwa nazo. Monga lamulo, maginito apamwamba, maginitowo amakhala olimba.
Dzina la neodymium nthawi zonse limayamba ndi 'N' kutsatiridwa ndi nambala ya manambala awiri mkati mwa mndandanda wa 24 mpaka 52. Chilembo 'N' m'magiredi a maginito a neo chimayimira neodymium pomwe manambala otsatirawa akuyimira mphamvu yayikulu kwambiri ya maginito yeniyeni yomwe imayesedwa mu 'Mega Gauss Oersteds (MGOe). Mgoe ndiye chizindikiro chachikulu cha mphamvu ya maginito aliwonse a neo komanso kuchuluka kwa mphamvu yamaginito yopangidwa ndi iyo mkati mwa zida zilizonse kapena ntchito. Ngakhale kuti mtundu woyambirira umayamba ndi N24, maginito otsika sakupangidwanso. Mofananamo, ngakhale mphamvu yayikulu kwambiri ya NIB ikuyembekezeka kufika pa N64 koma mphamvu zambiri zotere sizinafufuzidwebe m'malonda ndipo N52 ndiye mtundu wapamwamba kwambiri wa neo womwe umapezeka 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 ndi kampani yogulitsa maginito a rare earth yomwe imadziwika bwino pakufufuza, kupanga, kupanga ndi kutumiza maginito a neodymium iron boron opangidwa ndi sintered high-performance, maginito a neodymium okhazikika amitundu 47, kuyambira N33 mpaka 35AH, ndi GBD Series kuyambira 48SH mpaka 45AH alipo. Ngati mukufuna zinthu zathu, chonde titumizireni uthenga tsopano!
Nthawi yotumizira: Novembala-02-2022