Nānā Mākēneki no ka hoʻolei ʻana i nā hemahema o loko

ʻO ka nānā ʻana i ka ʻāpana magnetik kahi ala ʻike e hoʻohana ai i nā waiwai o nā mea ferromagnetic (e like me ke kila, hao, cobalt, nickel, etc.) e hoʻomāke. Kehoolei metalaua hoʻoneʻe ikaika ʻia e ka māla magnetic, inā loaʻa kahi kīnā e kū pono ana i ka kuhikuhi magnetization ma ka ʻili a kokoke paha i ka ʻili o ka hoʻolei ʻana, e kahe ana kekahi hapa o nā laina mākēneki ma ʻaneʻi, e hana ana i kahi leakage magnetic field e hoʻohua ai i nā pou magnetic hou. I kēia manawa, ninini ʻia ka ʻili o ka hoʻoheheʻe ʻia me ka wai magnetic i hoʻokuʻu ʻia a i kāpīpī ʻia me ka pauka magnetic maloʻo, a ʻo nā ʻāpana pauka magnetic e hōʻike i nā ʻāpana o nā hemahema ma muli o ka huki ʻana o nā pou magnetic.

I ka hana ʻana i ka nānā ʻana i ka ʻāpana magnetic ma nā hoʻolei ʻana, hoʻokumu ʻia kahi māla magnetic ikaika e ka hoʻoikaika ʻana. E like me nā ʻano hana hoʻoikaika a me nā nalu o kēia manawa, hiki ke hoʻokaʻawale ʻia nā ʻano magnetization i ka magnetization pololei a me ka magnetization indirect, DC magnetization a me AC magnetization. E like me ke kuhikuhi i hoʻokumu ʻia ai ka māla magnetic a me ke ala e hoʻohua ai i ka māla magnetic, aia nā ala magnetization e hiki ke hoʻokaʻawale ʻia i ka magnetization circumferential a me ka magnetization longitudinal, ka hoʻomau mau a me ke koena magnetization. I ka nānā maoli ʻana, hiki i ka foundry ke koho i nā ʻano hana magnetization composite AC a me DC e like me ka nui o ka hoʻolei ʻana, ka hāʻawi ʻana i nā hemahema a me nā mea ʻē aʻe.

ʻO ka pauka Magnetic kahi mea e hana ai i nā ʻāpana magnetic a hōʻike i nā hemahema, a ʻo kāna mea he mea maʻamau kiʻekiʻe-valent iron oxide me ke kiʻekiʻe magnetic permeability, remanence haʻahaʻa a me ka coercivity haʻahaʻa, e like me ka ferric oxide a me ka ferric oxide. ʻOi aku ka maikaʻi o 80 - 300 μm ka nui o ka ʻāpana o ka pauka magnetic no ke ʻano o ka hoʻāʻo ʻana me ka pauka magnetic maloʻo. No ka nānā ʻana i ka pulu a me ka fluorescent, ʻoi aku ka maikaʻi o ka nui o ka pauka magnetic. Pono nā hemahema hoʻolei liʻiliʻi e koho i ka pauka magnetic maikaʻi. ʻO ke ʻano o ka pauka magnetic ka nui o ka pauka magnetic spherical, a laila hoʻohālikelike ʻia me kahi ʻāpana o ka pauka magnetic strip.

ʻO ka hoʻokuʻu ʻia ʻana o ka pauka magnetic kahi hui ʻana o ka pauka magnetic a me ka hoʻopuehu ʻana i kekahi ʻāpana. ʻO ka hapa nui o ka pauka magnetic maʻamau he 1.3% - 3.0%, a ʻo ka hapa nui o ka pauka magnetic fluorescent he 0.1% - 0.3%. Hiki ke koho ʻia ka wai hoʻopuehu mai ka mea hoʻoheheʻe wai, kerosene a me ka hui ʻana o ke kerosene a me ka ʻaila transformer, nona ka hiki ke pale aku i ka ʻōpala, pulu a me ka defoaming.

 

ʻO nā hiʻohiʻona a me ke ʻano o ka noi ʻana o ka nānā ʻana i nā ʻāpana magnetic:

1. Loaʻa ka ʻike kiʻekiʻe loa o ka nānā ʻana i nā ʻāpana magnetika no ka ʻike ʻana i nā hemahema o ka ʻili a i ʻole kokoke i ka ʻili o ka hoʻolei ʻana, akā e emi koke kona naʻau me ka piʻi ʻana o ka hohonu o ka hemahema.

2. Hoʻohana wale ʻia kēia ʻano ʻike i ka ʻike ʻana i nā mea ferromagnetic, akā ʻaʻole hiki ke hoʻohana ʻia no nā hoʻoheheʻe non-magnetic e like me nā austenitic stainless steels.

3. He mea maʻalahi nā mea hana o ka nānā ʻana i nā ʻāpana magnetic, a maʻalahi ka hana ʻana o ka mea lawe lima ma ka pūnaewele.

4. He kiʻekiʻe ke koi ʻana o ka nānā ʻana i nā ʻāpana magnetic ma ke ʻano ʻino o ka ʻili hoʻolei.

5. Ma hope o ka nānā ʻana i ka hoʻolei ʻana, pono e hoʻomaʻemaʻe i ka ʻili a hoʻoneʻe i ke koena magnetic pauka i ka manawa. Inā pono, pono ka mālama demagnetization.