2023-02-20
Pehea
ikaika anei ka mimi o NdFeB ikaika magnet?
NdFeB
ʻO nā magnet ka mea ikaika loa i kēia manawa. ʻO nā mea magnet NdFeB
i kēia manawa nā magnets loaʻa i ke kālepa. Ua ʻike ʻia lākou he mōʻī
o ka magnetism. Loaʻa iā lākou nā waiwai magnetic kiʻekiʻe loa a me kā lākou kiʻekiʻe
ʻOi aku ka 10 mau manawa kiʻekiʻe ma mua o ka huahana ikehu magnetic (BHmax).
ferrite. ʻO ia hoʻi ka mea hoʻohana maʻamau i ka honua i kēia manawa, a ʻo ia
hoʻohana ʻia i nā ʻāpana he nui a me nā mea kani e like me kā mākou magnet mau loa
nā kaʻa kaʻa, nā disk drives, a me nā kiʻi resonance magnetic.
nona iho
maikaʻi nō hoʻi ka machinability. Hiki ke piʻi ka mahana hana a hiki i 200
degere Celsius. Eia kekahi, paʻakikī kona ʻano, kūpaʻa kāna hana, a
he maikaʻi ke kumu kūʻai, no laila ākea loa kāna noi. Akā
ma muli o kāna hana kemika ikaika, pono e mālama ʻia me ka ʻili
ka uhi ʻana. (Pēlā me Zn, Ni plating, electrophoresis, passivation, etc.).
ʻO ka mea nui
ʻO ka ʻāpana o nā mākēneki NdFeB he neodymium ʻeleʻele honua. ʻAʻole ʻo Rare Earth
kapa ʻia ʻo rare earth no ka haʻahaʻa haʻahaʻa, akā ʻoi aku ka paʻakikī
kaʻawale ma mua o nā mea ʻē aʻe i hoʻopili ʻia e nā mea paʻa kemika. ʻOiai ka
He ikaika loa ka hukihuki ʻana o NdFeB, a ua lohe ʻia
Hiki i nā mea magnet NdFeB ke komo i 600 manawa i ko lākou kaumaha ponoʻī. Akā ʻoiaʻiʻo, ʻo kēia
ʻAʻole paʻa ka ʻōlelo, no ka mea, ʻo ka mea hoʻonaninani magnetic kekahi
pili i nā kūlana he nui e like me ke ʻano a me ka mamao. No ka laʻana, no
nā magnet me ke anawaena like, ʻoi aku ka kiʻekiʻe o ka magnet, ʻoi aku ka ikaika o ka
ikaika hoʻohihi magnetic; no na magnet me ke kiekie hookahi, o ka nui o ka
ke anawaena, ʻoi aku ka nui o ka mana hoʻohihi magnetic.