ʻO Neodymium Iron Boron Magnets kekahi o nā mea hoʻokele waiwai ikaika loa i loaʻa i kēia lā. Hiki i kēia mau mākēneki honua laha ʻole ke piʻi i ka 10 mau manawa ʻoi aku ka ikaika ma mua o ka magnet seramika ikaika loa. Hana ʻia nā mākēneki NdFeB me ka hoʻohana ʻana i kekahi o nā ʻano hana maʻamau ʻelua, nā magnet i hoʻopaʻa ʻia (ka hoʻopaʻa ʻana, ka hoʻoheheʻe ʻana, ka hoʻoheheʻe ʻana a i ʻole ka hoʻoheheʻe ʻana kalena), a me nā magnet sintered (powder metallurgy, PM process). Hoʻohana maʻamau ʻia nā mākēneki NdFeB i nā huahana e koi ana i nā magnet paʻa ikaika e like me nā disk drive paʻakikī no nā kamepiula, nā kaʻa uila i nā lako cordless, a me nā mea hoʻopaʻa. No nā mea hoʻohana lāʻau lapaʻau e puka mai ana nā hoʻohana hou o kēia mau magnet ikaika. No ka laʻana, ka hoʻokele catheter, kahi e hiki ai ke hoʻohui ʻia nā magnet i ka piko o kahi hui catheter a hoʻomalu ʻia e nā ʻōnaehana magnetic waho no ka hoʻokele a me ka hiki ke pale.
ʻO nā mea hoʻohana ʻē aʻe i ka lāʻau lapaʻau ka hoʻokomo ʻana i nā mea nānā i ka wehe ʻana i ka magnetic resonance imaging (MRI) i hoʻohana ʻia no ka palapala ʻāina a me ke anatomy kiʻi, ma ke ʻano he koho ʻē aʻe i nā superconducting magnets e hoʻohana maʻamau i nā coils o ka uea e hana i kahi māla magnetic. ʻO nā mea hoʻohana hou aʻe i ke kahua lāʻau lapaʻau e pili ana, nā implants lōʻihi a pōkole, a me nā mea hoʻopiʻi liʻiliʻi. ʻO kekahi mau noi liʻiliʻi liʻiliʻi no ka neodymium iron boron magnets he mau hui endoscopic no ka nui o nā kaʻina hana me; gastroesophageal, gastrointestinal, iwi iwi, ʻiʻo a me nā ʻāmiʻi, cardiovascular, and neural.
Hoʻohana ʻia nā magnet ferrite, neodymium magnets a i ʻole nā kumu magnetic no nā noi like ʻole i ka ʻenehana, i ka ʻoihana a no nā kumu olakino. Pono e hoʻolako i nā magnet me kahi pale o ka ʻili mai ka corrosion, ka "coating" no nā magnets. ʻO ka hoʻopaʻa ʻana i nā magnet neodymium kahi hana koʻikoʻi e pale i ka magnet mai ka ʻino. E oxidize koke ka substrate NdFeB (Neodymium, Iron, Boron) me ka ʻole o kahi papa pale. Aia ma lalo iho kahi papa inoa o ka uhi ʻana a me ko lākou mau hulu no kāu kuhikuhi.
| Lapaʻau ʻili | ||||||
| Ka uhi ʻana | Ka uhi ʻana mānoanoa (μm) | kalakala | Ka Mahana Hana (℃) | PCT (h) | SST (h) | Nā hiʻohiʻona |
| Polū-Keʻokeʻo Zinc | 5-20 | Polū-Keʻokeʻo | ≤160 | - | ≥48 | Ka uhi anodic |
| Zinc kala | 5-20 | kala ānuenue | ≤160 | - | ≥72 | Ka uhi anodic |
| Ni | 10-20 | Kālā kala | ≤390 | ≥96 | ≥12 | Kūleʻa wela kiʻekiʻe |
| Ni+Cu+Ni | 10-30 | Kālā kala | ≤390 | ≥96 | ≥48 | Kūleʻa wela kiʻekiʻe |
| Māmā aluminika | 5-25 | Kālā kala | ≤390 | ≥96 | ≥96 | ʻO ka hui maikaʻi, ke kūpaʻa wela kiʻekiʻe |
| Electrophoric epoxy | 15-25 | ʻeleʻele | ≤200 | - | ≥360 | Insulation, maikaʻi kūlike o ka mānoanoa |
| Ni+Cu+Epoxy | 20-40 | ʻeleʻele | ≤200 | ≥480 | ≥720 | Insulation, maikaʻi kūlike o ka mānoanoa |
| Aluminum+Epoxy | 20-40 | ʻeleʻele | ≤200 | ≥480 | ≥504 | ʻO ka hoʻokaʻawale ʻana, ke kūpaʻa ikaika i ka paʻakai paʻakai |
| Epoxy spray | 10-30 | ʻeleʻele, hina | ≤200 | ≥192 | ≥504 | ʻO ka hoʻokuʻuʻana, ka pale wela kiʻekiʻe |
| Phosphating | - | - | ≤250 | - | ≥0.5 | Kumukuai haahaa |
| Ka hoʻopaʻapaʻa | - | - | ≤250 | - | ≥0.5 | ʻO ke kumu kūʻai haʻahaʻa, aloha kaiapuni |
| E hoʻokaʻaʻike i kā mākou poʻe loea no nā uhi ʻē aʻe! | ||||||
ʻO ka uhi ʻana o NiCuNi: ʻO ka nickel coating he ʻekolu papa, nickel-copper-nickel. ʻO kēia ʻano uhi ka mea i hoʻohana nui ʻia a hāʻawi i ka pale mai ka corrosion o ka magnet i nā kūlana o waho. He haʻahaʻa nā koina hana. ʻO ka mahana hana kiʻekiʻe ma kahi o 220-240ºC (e pili ana i ka mahana hana kiʻekiʻe o ka magnet). Hoʻohana ʻia kēia ʻano uhi i nā ʻenekini, nā mea hana, nā mea lapaʻau, nā mea ʻike, nā noi kaʻa, ka paʻa ʻana, nā kaʻina hana deposition kiʻiʻoniʻoni lahilahi a me nā pamu.
ʻEleʻele nickel: ʻO nā waiwai o kēia uhi e like me nā mea o ka nickel coating, me ka ʻokoʻa i hana ʻia kahi kaʻina hana hou, ʻo ka hui nickel ʻeleʻele. Ua like nā waiwai me nā mea o ka nickel plating maʻamau; me ke ʻano o ka hoʻohana ʻia ʻana o kēia uhi i nā noi e koi ana i ka ʻike ʻole o ka ʻāpana.
Ke gula: Hoʻohana pinepine ʻia kēia ʻano uhi i ka lāʻau lapaʻau a kūpono hoʻi no ka hoʻohana ʻana me ke kino kanaka. Aia ka ʻae ʻia mai ka FDA (Food and Drug Administration). Ma lalo o ka uhi gula aia kahi sub-layer o Ni-Cu-Ni. ʻO ka mahana hana kiʻekiʻe loa e pili ana i 200 ° C. Ma waho aʻe o ke kahua o ka lāʻau lapaʻau, hoʻohana pū ʻia ka pale gula no nā mea nani a me nā mea hoʻonaninani.
Zinc: Inā emi ka mahana hana kiʻekiʻe ma mua o 120 ° C, ua lawa kēia ʻano uhi. He haʻahaʻa nā kumukūʻai a pale ʻia ka magnet i ka corrosion ma ka lewa ākea. Hiki ke hoʻopili ʻia i ke kila, ʻoiai pono e hoʻohana ʻia kahi mea hoʻopili kūikawā. Ua kūpono ka hoʻopili zinc i ka haʻahaʻa o nā pale pale no ka magnet a ua lanakila nā haʻahaʻa haʻahaʻa haʻahaʻa.
Parylene: Ua ʻae ʻia kēia uhi e ka FDA. No laila, hoʻohana ʻia lākou no nā lāʻau lapaʻau i ke kino kanaka. ʻO ka mahana hana kiʻekiʻe loa ma kahi o 150 ° C. Aia ka molecular structure i nā pūhui hydrocarbon apo i loaʻa iā H, Cl a me F. Ma muli o ke ʻano mole, ʻokoʻa nā ʻano like ʻole: Parylene N, Parylene C, Parylene D a me Parylene HT.
Epoxy: He uhi e hāʻawi i kahi pale maikaʻi loa i ka paʻakai a me ka wai. Aia kahi adhesion maikaʻi loa i ke kila, inā hoʻopili ʻia ka magnet me kahi mea hoʻopili kūikawā kūpono no nā magnet. ʻO ka mahana hana kiʻekiʻe ma kahi o 150 ° C. ʻO ka maʻamau o ka epoxy coatings he ʻeleʻele, akā hiki ke keʻokeʻo. Hiki ke loaʻa nā noi ma ka ʻāpana moana, nā ʻenekini, nā mea ʻike, nā mea kūʻai aku a me ka ʻoihana kaʻa.
Hoʻokomo ʻia nā mākēneki i loko o ka plastic: a i ʻole i kapa ʻia ʻo over-moulded. ʻO kāna hiʻohiʻona nui ka pale maikaʻi loa o ka magnet i ka haki ʻana, ka hopena a me ka corrosion. Hāʻawi ka papa pale i ka pale mai ka wai a me ka paʻakai. ʻO ka mahana hana kiʻekiʻe e pili ana i ka plastic i hoʻohana ʻia (acrylonitrile-butadiene-styrene).
Hoʻokumu ʻia ʻo PTFE (Teflon): E like me ka injected / plastic coating e hāʻawi pū i ka pale maikaʻi loa o ka magnet i ka haki ʻana, nā hopena a me ka ʻino. Mālama ʻia ka magnet mai ka makū, ka wai a me ka paʻakai. ʻO ka mahana hana kiʻekiʻe loa ma kahi o 250 ° C. Hoʻohana nui ʻia kēia uhi i nā ʻoihana olakino a me ka ʻoihana meaʻai.
Rubber: Mālama maikaʻi ʻia ka uhi ʻana mai ka haki ʻana a me nā hopena a hōʻemi i ka pala. Hoʻopuka ka mea hao i ka pale paheʻe maikaʻi loa ma nā ʻili kila. ʻO ka mahana hana kiʻekiʻe ma kahi o 80-100 ° C. ʻO nā mea magnet pot me ka uhi ʻana i ka lāʻau ka mea i maopopo loa a hoʻohana nui ʻia.
Hāʻawi mākou i kā mākou mea kūʻai aku i nā ʻōlelo aʻoaʻo a me nā hoʻonā e pili ana i ka pale ʻana i kāu mau magnet a loaʻa i ka noi maikaʻi loa o ka magnet. E kelepona mai iā mākou a e hauʻoli mākou e pane i kāu nīnau.
