Honsen Magneticskūʻai aku i nā magnet neodymium laikini. ʻO ka magnet neodymium (ʻike pū ʻia ʻo NdFeB NIB a i ʻole Neo magnet) ke ʻano hoʻohana nui ʻia o ka magnet honua paʻa, he magnet mau i hana ʻia mai kahi huila o neodymium, hao a boron e hana i ka Nd2Fe14B tetragonal crystalline structure. Hoʻokumu ʻia i ka makahiki 1982 e General Motors a me Sumitomo Special Metals, ʻo nā neodymium magnets ka ʻano ikaika loa o ka magnet mau loa i loaʻa i ke kālepa. Ua hoʻololi lākou i nā ʻano magnet ʻē aʻe i nā noi he nui i nā huahana hou e koi ana i nā magnet mau loa, e like me nā kaʻa i nā hāmeʻa cordless, hard disk drive a me nā mea hoʻopaʻa magnetic. ʻAʻole maopopo inā ʻo Neodymium ka mea maikaʻi loa no kāu noi? kaomi ma aneʻi no kahi hiʻohiʻona a me ka hoʻohālikelike noi no nā mea magnetic āpau a mākou e hāʻawi ai.
Neodymium poepoe permanent magnet Description
He kiʻekiʻe ke kiʻekiʻe uniaxial magnetocrystalline anisotropy ka tetragonal Nd2Fe14B (HA~7 teslas-magnetic field ikaika H in A/m versus magnetic moment in A.m2). Hāʻawi kēia i ka hui i ka hiki ke loaʻa ka coercivity kiʻekiʻe (ʻo ia hoʻi, ke kū'ē i ka demagnetized). He kiʻekiʻe ka saturation magnetization ka pūhui (Js ~ 1.6 T a i ʻole 16 kG) a ma ke ʻano he 1.3 teslas. No laila, ʻoiai ke kūlike ka nui o ka ikehu i ka js2, hiki i kēia māhele magnetic ke mālama i ka nui o ka ikehu magnetic (BHmax~512). kJ/m3 a i ʻole 64 MG·Oe) Ua ʻoi aku ka kiʻekiʻe o kēia waiwai i nā huila NdFeB ma mua o nā magnet samarium cobalt (SmCo), ʻo ia ke ʻano mua o ka mea hoʻokalakupua honua i kūʻai ʻia. I ka hoʻomaʻamaʻa ʻana, pili nā waiwai magnetic o nā magnet neodymium i ka haku mele, microstructure, a me nā ʻenehana hana i hoʻohana ʻia. n45 neodymium magnet disc
Nā palena kikoʻī
Palapala Kahe Huahana
No ke aha e koho ai iā mākou
Hōʻikeʻike Hui
Manaʻo manaʻo
