Ke koho ʻana i ka mea magnet pono
He mea paʻakikī ke koho ʻana i ke koho mea magnet kūpono no kāu noi. Aia nā ʻano mea magnet e koho mai, kēlā me kēia me nā ʻano hana like ʻole. Ma ke ʻano he mea hoʻolako magnet ʻoihana, me kā mākou ʻike nui i nā magnetic, hiki iā mākou ke kōkua iā ʻoe e hana i ka koho kūpono.
Loaʻa nā ʻano mea like ʻole, me nā neodymium magnets (NdFeB a i ʻole ka honua ʻole), alnico magnets (AlNiCo), samarium cobalt (SmCo) a i ʻole ferrite magnets (ceramic). Eia kekahi, aia nā ʻano like ʻole e like me nā electromagnets, nā magnet flexible a me nā magnet i hoʻopaʻa ʻia. ʻO ke koho ʻana i ka mea kūpono ke kī i kahi papahana holomua.
ʻEhia nā ʻano magneto like ʻole
Hiki ke hana ʻia kahi hoʻokaʻawale maʻalahi o kēia mau magnet ma muli o ke ʻano o nā mea magneti like ʻole a me ke kumu o kā lākou magnetism. ʻO nā mākēneki e mau ana ma hope o ka hoʻoneʻe ʻana i kapa ʻia he mau magnet mau loa. ʻO ke kū'ē o kēia ka electromagnet. ʻO ka electromagnet kahi magnet pōkole wale nō e like me ka magnet mau loa ke kokoke i kahi māla magnetic, akā e nalowale koke kēia hopena ke wehe ʻia.
Hoʻokaʻawale pinepine ʻia nā magnet paʻa i ʻehā mau ʻāpana e like me kā lākou mau mea: NdFeB, AlNiCo, SmCo a me ferrite.
Neodymium hao boron (NdFeB) - ʻike nui ʻia ʻo ka neodymium iron boron a i ʻole NEO magnets - he mau mea hoʻokalakupua honua i hana ʻia e ka hoʻohui ʻana i ka neodymium, ka hao a me ka boron, a ʻo ia nā mea ikaika loa i loaʻa i kēia lā. ʻOiaʻiʻo, hiki ke hoʻokaʻawale ʻia ʻo NdFeB i NdFeB sintered, NdFeB i hoʻopaʻa ʻia, NdFeB i hoʻopaʻa ʻia, a pēlā aku. Eia nō naʻe, ma ka laulā, inā ʻaʻole mākou e wehewehe i ke ʻano o Nd-Fe-B, e kuhikuhi mākou iā Nd-Fe-B i hoʻopaʻa ʻia.
Samarium Cobalt (SmCo) - ʻike ʻia hoʻi ʻo ka rare earth cobalt, rare earth cobalt, RECo a me CoSm - ʻaʻole ikaika e like me nā neodymium magnets (NdFeB), akā hāʻawi lākou i ʻekolu mau pono nui. Hiki i nā mākēneki i hana ʻia mai SmCo ke hana ma luna o kahi ākea ākea ākea, loaʻa kahi koena wela kiʻekiʻe a ʻoi aku ke kūpaʻa i ka corrosion. No ka mea, ʻoi aku ka pipiʻi o SmCo a loaʻa iā ia kēia mau waiwai kūʻokoʻa, hoʻohana pinepine ʻia ʻo SmCo i nā noi koa a me nā aerospace.
Aluminum-Nickel-Cobalt (AlNiCo) - ʻEkolu mau mea nui o AlNiCo - aluminika, nickel a me ka cobalt. ʻOiai ua kūpaʻa lākou i ka wela, ua maʻalahi lākou i ka demagnetized. I kekahi mau noi, ua hoʻololi pinepine ʻia lākou e ka seramika a me nā mea hoʻokalakupua honua. Hoʻohana pinepine ʻia ʻo AlNiCo i ke ola o kēlā me kēia lā no nā noi paʻa a me ke aʻo ʻana.
Ferrite- Hana ʻia nā mākēneki paʻa seramika a i ʻole ferrite mai ka iron oxide a me ka barium a i ʻole strontium carbonate a he maʻalahi a maʻalahi hoʻi e hana ma ka sintering a i ʻole ke kaomi ʻana. ʻO kēia kekahi o nā ʻano magnet i hoʻohana pinepine ʻia. He ikaika lākou a hiki ke maʻalahi i ka demagnetized.
Hiki ke hoʻokaʻawale ʻia nā magnet paʻa i kēia mau ʻāpana ma o ka hoʻokaʻawale ʻana o nā ʻano like ʻole:
Sintering-ʻo ia ka hoʻololi ʻana o nā mea pauka i loko o nā kino paʻa a he hana kuʻuna. Ua hoʻohana ka poʻe i kēia kaʻina no ka manawa lōʻihi e hana i nā ceramics, pauda metallurgy, refractory material, ultra-high temperature material, etc. Ma keʻano laulā, ʻo ke kino paʻakikī i loaʻa ma ka sintering ma hope o ka hoʻoheheʻe ʻia ʻana o ka pauka he mea polycrystalline me kahi microstructure. i loko o nā kristal, vitreous humor a me nā pores. Hoʻopili pololei ke kaʻina hana sintering i ka nui o ka palaoa, ka nui o ka pore a me ke ʻano a me ka hāʻawi ʻana i nā palena o ka palaoa i loko o ka microstructure, a laila pili i nā waiwai o ka mea.
Hoʻopaʻa - ʻAʻole kahi mana kūʻokoʻa ka hoʻopaʻa ʻana ma ke ʻano koʻikoʻi o ka huaʻōlelo, no ka mea, ʻo ka hoʻopaʻa ʻana ʻo ia ka hoʻopaʻa ʻana o nā mea i hoʻopaʻa ʻia me ka hoʻopili ʻana. Ma kēia ala, hiki ke hoʻemi iki ʻia nā au eddy i hana ʻia i ka wā noi magnet, e hoʻomaikaʻi nui i ka hilinaʻi o ka magnet i ka wā o ka noi.
Injection Molding - ʻO ka hoʻoheheʻe ʻana he ʻano hana i nā ʻano no nā huahana ʻoihana. Hoʻoheheʻe pinepine ʻia nā huahana me ka hoʻohana ʻana i ka hoʻoheheʻe ʻana i ka lāʻau a me ka hoʻoheheʻe ʻana i ka plastic. Hiki ke hoʻokaʻawale ʻia ka hoʻoheheʻe ʻana i loko o ke ʻano hoʻoheheʻe injection a me ke ʻano hoʻoheheʻe make. ʻO ka hoʻohana ʻana i ka hoʻoheheʻe ʻia ʻana ma ke ʻano he hana hiki ke hāʻawi i nā mea hou aku no nā ʻano magnet. Ma muli o nā waiwai o nā magnets ponoʻī, ʻoi aku ka palupalu a paʻakikī ka hana ʻana o nā magnet sintered no nā ʻano kikoʻī. ʻO ke ʻano hoʻoheheʻe injection e hana pinepine i nā ʻano like me ka hoʻohui ʻana i nā mea ʻē aʻe.
Mākēneki hikiwawe- ʻO ka magnet hiki ke hoʻopaʻa ʻia a paʻa mau kona mau waiwai. Hana ʻia kēia mau magnet me nā mea maʻalahi, e like me ka rubber, polyurethane, a me nā mea ʻē aʻe, a hui pū ʻia me ka pauka magnetic e hana ai i ka magnetic. ʻAʻole e like me nā magnet paʻakikī maʻamau, ʻoi aku ka maʻalahi a me ka malleable nā magnet flexible, no laila hiki ke ʻoki ʻia a hoʻopaʻa ʻia i nā ʻano like ʻole e like me ka mea e pono ai. ʻOi aku ka maikaʻi o nā waiwai adhesion a hiki ke hoʻohana ʻia no kahi
Solenoid: ʻO ka ʻaoʻao o ka magnet mau loa he electromagnet, hiki ke kapa ʻia he magnet pōkole. ʻO kēia ʻano magnet he coil e hana ana i ka loop ma ke kāʻei ʻana i nā uwea a puni kahi mea kumu, ʻike ʻia hoʻi he solenoid. Ma ka hele ʻana i ka uila ma o ka solenoid, ua hoʻokumu ʻia ka māla magnetic i hoʻohana ʻia e hoʻokalakupua i ka electromagnet. ʻO ke kahua magnetic ikaika loa i loko o ka wili, a piʻi ka ikaika o ke kahua me ka helu o nā coils a me ka ikaika o ke au. ʻOi aku ka maʻalahi o nā electromagnets a hiki ke hoʻololi i ke kuhikuhi o ka māla magnetic e like me ke kuhikuhi o ka manawa, a hiki ke hoʻoponopono pū i ka ikaika o kēia manawa e like me ka mea e pono ai e hoʻokō i ka ikaika o ka māla i makemake ʻia.
Ka manawa hoʻouna: Apr-21-2023