Pehea ka lōʻihi o ke ola ʻana o nā magnet neodymium

ʻO nā magnet NdFeB, i ʻike ʻia hoʻi he mau magnet NdFeB, he mau kristal tetragonal i hana ʻia me ka neodymium, ka hao, a me ka boron (Nd2Fe14B). ʻO nā magnet Neodymium nā magnet mau loa i loaʻa i kēia lā a ʻo nā magnet honua kakaikahi i hoʻohana pinepine ʻia.

Pehea ka lōʻihi o ke ola ʻana o nā ʻano magnetic o nā magnet NdFeB?

He ikaika koʻikoʻi ko nā magnet NdFeB, a ʻaʻohe demagnetization a me nā loli magnetic ma lalo o ke kaiapuni kūlohelohe a me nā kūlana kahua magnetic maʻamau. Ke manaʻo nei ua kūpono ke kaiapuni, ʻaʻole e nalowale ka hana nui o nā magnet ma hope o ka hoʻohana lōʻihi. No laila, i ka hoʻohana pono ʻana, hoʻowahāwahā pinepine mākou i ka mana o ka mea manawa ma ka magnetism.

He aha nā mea e hoʻopilikia ai i ke ola lawelawe o nā magnet neodymium i ka hoʻohana ʻana i nā magnet i kēlā me kēia lā?

ʻElua mau mea āu e hoʻopilikia pololei ai i ke ola lawelawe o ka magnet.

ʻO ka mua, ʻo ia ka wela. E hoʻolohe pono i kēia pilikia i ke kūʻai ʻana i nā magnet. Hoʻohana nui ʻia nā magnet moʻo N ma ka mākeke, akā hiki iā lākou ke hana wale i kahi ʻano ma lalo o 80 degere. Inā ʻoi aku ka mahana ma mua o kēia mahana, e hoʻonāwaliwali ʻia ka magnetism a i ʻole e demagnetized loa. ʻOiai ua hiki ke kahua magnetic waho o ka magnet i ka saturation a ua hana i nā laina induction magnetic mānoanoa, i ka wā e piʻi ai ka mahana waho, ua luku ʻia ke ʻano neʻe maʻamau i loko o ka magnet. Hoʻemi pū ia i ka ikaika coercive intrinsic o ka magnet, ʻo ia hoʻi, loli ka huahana ikehu magnetic nui me ka mahana, a loli pū ka huahana o ka waiwai Br a me ka waiwai H.

ʻO ka lua, ʻo ia ka pala. Ma keʻano laulā, e loaʻa i ka ʻili o nā magnet neodymium kahi papa o ka uhi. Inā ua hōʻino ʻia ka uhi ma luna o ka magnet, hiki i ka wai ke komo maʻalahi i loko o ka magnet, kahi e hoʻoulu ai i ka magnet e popo a ma hope e alakaʻi ai i ka emi ʻana o ka hana magnetic. Ma waena o nā magnet āpau, ʻoi aku ka kiʻekiʻe o ka ikaika kū'ē i ka pala o nā magnet neodymium ma mua o nā magnet ʻē aʻe.

Makemake au e kūʻai i nā magnet neodymium lōʻihi, pehea e koho ai au i kahi mea hana?

Hana ʻia ka hapa nui o nā magnet neodymium ma Kina. Inā makemake ʻoe e kūʻai i nā huahana kiʻekiʻe, pili ia i ka ikaika o ka hale hana. Ma ke ʻano o ka ʻenehana hana, nā lako hoʻāʻo, ke kahe o ke kaʻina hana, ke kōkua ʻenekinia, ka ʻoihana QC a me nā palapala hōʻoia ʻōnaehana hoʻokele maikaʻi hiki ke hoʻokō i nā kūlana honua. Hoʻokō wale ʻo Fuzheng i nā kūlana āpau i luna, no laila he mea kūpono ke koho iā mākou ma ke ʻano he mea hana o nā magnet neodymium wahine.