ʻO nā kumu nui e pili ana i ka demagnetization o NdFeB magnets

ʻO ka mahana kekahi o nā kumu nui e hiki ai ke hoʻohaumia i nā magnet NdFeB. Loaʻa i kēia mau magnet aka wela hana kiʻekiʻe, ma waho aʻe o ka hoʻomaka ʻana e nalowale i kā lākou mau waiwai magnetic. ʻO ka mahana Curie ke kiko kahi e hoʻololi ai ka mea magnetic i kahi hoʻololi, e alakaʻi ana i kahi hāʻule nui o kāna magnetization. No nā mākēneki NdFeB, ʻo ka mahana Curie ma kahi o 310 degere Celsius. No laila, ʻo ka hana ʻana i ka magnet i nā mahana kokoke a i ʻole ma luna o kēia palena hiki ke alakaʻi i ka demagnetization.

ʻO kekahi kumu koʻikoʻi e pili ana i ka demagnetization o NdFeB magnets ʻo ia ke kahua magnetic waho. ʻO ka hōʻike ʻana i ka magnet i kahi māla kūʻē kūʻē ikaika hiki ke hoʻolilo iā ia i ka nalowale o kāna magnetization. Ua kapa ʻia kēia ʻano he demagnetizing. ʻO ka ikaika a me ka lōʻihi o ke kahua o waho e hana nui i ka hana demagnetization. No laila, he mea nui ka mālama ʻana i nā magnet NdFeB me ka mālama a pale aku i ka hoʻolaha ʻana iā lākou i nā māla magnetic ikaika e hiki ke hoʻololi i ko lākou mau waiwai magnetic.

ʻO ka corrosion kekahi mea nui e hiki ai ke alakaʻi i ka demagnetization o nā magnet NdFeB. Hana ʻia kēia mau magnet mai nā ʻāpana metala, a inā e ʻike ʻia lākou i ka makū a i ʻole kekahi mau kemika, hiki iā lākou ke ʻino. Hoʻonāwaliwali ka corrosion i ka paʻa o ke kūkulu ʻana o ka magnet a hiki ke hopena i ka nalowale o kona ikaika magnetic. No ka pale ʻana i kēia, hoʻohana pinepine ʻia nā uhi e like me ka nickel, zinc, a i ʻole epoxy no ka pale ʻana i nā magnet mai ka wai a me nā mea corrosive.

ʻO ke koʻikoʻi mīkini kekahi kumu e hiki ai ke hoʻohaumia i nā magnet NdFeB. Hiki i ke kaomi nui a i ʻole ka hopena ke hoʻopau i ka hoʻolikelike ʻana o nā domain magnetic i loko o ka magnet, e hopena i ka emi ʻana o kona ikaika magnetic. No laila, he mea koʻikoʻi ka mālama pono ʻana i nā magnet NdFeB e pale aku i ka hoʻohana ʻana i ka ikaika nui a i ʻole ke kau ʻana iā lākou i nā hopena hikiwawe.

ʻO ka mea hope loa, hiki i ka manawa pono ke hoʻoulu i ka demagnetization i nā magnet NdFeB. ʻIke ʻia kēia ʻo ka ʻelemakule. I nā manawa lōʻihi, hiki ke hoʻohaʻahaʻa maoli nā waiwai magnetic o ka magnet ma muli o nā ʻano like ʻole e like me ka piʻi ʻana o ka mahana, ka ʻike ʻana i nā māla magnetic waho, a me ke kaumaha mechanical. No ka hoʻohaʻahaʻa i nā hopena o ka ʻelemakule, ʻōlelo ʻia ka hoʻāʻo maʻamau a me ka nānā ʻana i nā waiwai magnetic o ka magnet.

I ka hopena, hiki i kekahi mau mea ke hoʻopili i ka demagnetization o NdFeB magnets, me ka mahana, nā māla magnetic waho, corrosion, mechanical stress, a me ka ʻelemakule. Ma ka hoʻomaopopo ʻana a me ka mālama pono ʻana i kēia mau mea, hiki ke mālama i nā waiwai magnetic ikaika o nā magnet NdFeB a hoʻolōʻihi i ko lākou ola. ʻO ka mālama pono ʻana, ka mālama ʻana i ka mahana, a me ka pale ʻana i nā kaiapuni corrosive nā mea nui i ka mālama ʻana i ka hana a ka magnet.