Neodymium Iron Boron Magnets ke e 'ngoe ea limmanete tse matla ka ho fetesisa tse fumanehang kajeno. Limanete tsena tse sa tloaelehang tsa lefats'e li ka ba matla ka makhetlo a 10 ho feta makenete ea ceramic e matla ka ho fetisisa. Limanete tsa NdFeB hangata li hlahisoa ho sebelisoa e 'ngoe ea mekhahlelo e' meli ea mekhoa e akaretsang, limmete tse tlanngoeng (compress, ente, extrusion kapa molding ea almanaka), le limakenete tse sintered (powder metallurgy, PM process). Limanete tsa NdFeB hangata li sebelisoa lihlahisoa tse hlokang limatlase tse matla tsa nako e telele joalo ka li-hard disk drive bakeng sa likhomphutha, li-motors tsa motlakase ka lisebelisoa tse se nang mohala le li-fasteners. Bakeng sa ts'ebeliso ea likarolo tsa bongaka ho hlaha ts'ebeliso e ncha ea limakete tsena tse matla. Mohlala, navigation ea catheter, moo makenete a ka kopanngoang ntlheng ea kopano ea catheter mme a laoloa ke sistimi ea kantle ea makenete bakeng sa ho tsamaisa le ho kheloha.
Litšebeliso tse ling lefapheng la bongaka li kenyelletsa ho hlahisoa ha li-scanner tsa open magnetic resonance imaging (MRI) tse sebelisoang ho etsa 'mapa le setšoantšo sa anatomy, e le mokhoa o mong ho feta limakenete tse kholo tseo hangata li sebelisang likhoele tsa terata ho hlahisa matla a khoheli. Tšebeliso e eketsehileng lefapheng la lisebelisoa tsa bongaka li kenyelletsa, li-implants tsa nako e telele le tse khutšoanyane, le lisebelisoa tse fokolang haholo. Lisebelisoa tse ling tse hlaselang hanyane bakeng sa limakete tsa boron tsa tšepe tsa neodymium ke likopano tsa endoscopic bakeng sa lits'ebetso tse ngata tse kenyelletsang; gastroesophageal, gastrointestinal, skeleton, mesifa le manonyeletso, pelo le methapo ea kutlo.
Limanete tsa Ferrite, makenete a neodymium kapa li-bases tsa makenete li sebelisoa bakeng sa lits'ebetso tse fapaneng ho tsa mahlale, indastering le molemong oa bongaka. Ho na le tlhokahalo ea ho fana ka limatlafatsi tse nang le tšireletso e ka holimo khahlanong le ho bola, "ho roala" bakeng sa limakete. Ho roala makenete a neodymium ke ts'ebetso ea bohlokoa ea ho sireletsa makenete khahlano le kutu. Substrate NdFeB (Neodymium, Iron, Boron) e tla oxidize kapele ntle le lera le sireletsang. Ka tlase lethathamo la ho roala / ho roala le masiba a bona bakeng sa litšupiso tsa hau.
| Phekolo ea Bokaholimo | ||||||
| Ho roala | Ho roala Botenya (μm) | Mmala | Mocheso oa Mosebetsi (℃) | PCT (h) | SST (h) | Likaroloana |
| Zinc e Blue-White | 5-20 | Bosoeu-Bosoeu | ≤160 | - | ≥48 | Ho roala ha anodic |
| 'Mala oa Zinc | 5-20 | 'Mala oa mookoli | ≤160 | - | ≥72 | Ho roala ha anodic |
| Ni | 10-20 | Silevera | ≤390 | ≥96 | ≥12 | Ho hanyetsa mocheso o phahameng |
| Ni+Cu+Ni | 10-30 | Silevera | ≤390 | ≥96 | ≥48 | Ho hanyetsa mocheso o phahameng |
| Phula aluminizing | 5-25 | Silevera | ≤390 | ≥96 | ≥96 | Motsoako o motle, ho hanyetsa mocheso o phahameng |
| Electrophoretic epoxy | 15-25 | Ntsho | ≤200 | - | ≥360 | Insulation, ho lumellana ho hotle ha botenya |
| Ke+Cu+Epoxy | 20-40 | Ntsho | ≤200 | ≥480 | ≥720 | Insulation, ho lumellana ho hotle ha botenya |
| Aluminium+Epoxy | 20-40 | Ntsho | ≤200 | ≥480 | ≥504 | Insulation, ho hanyetsa ka matla ho fafatsa letsoai |
| Epoxy spray | 10-30 | Botsho, Bohlooho | ≤200 | ≥192 | ≥504 | Insulation, ho hanyetsa mocheso o phahameng |
| Phosphating | - | - | ≤250 | - | ≥0.5 | Theko e tlase |
| Boikemisetso | - | - | ≤250 | - | ≥0.5 | Theko e tlaase, tikoloho e botsoalle |
| Ikopanye le litsebi tsa rona bakeng sa litlolo tse ling! | ||||||
Ho roala ha NiCuNi: Ho roala ha nickel ho entsoe ka likarolo tse tharo, nickel-copper-nickel. Mofuta ona oa ho roala ke oona o sebelisoang ka ho fetisisa ebile o fana ka tšireletso khahlanong le ho bola ha makenete maemong a ka ntle. Litšenyehelo tsa ho sebetsa li tlase. Mocheso o phahameng oa ho sebetsa o ka ba 220-240ºC (ho itšetlehile ka mocheso o phahameng oa ho sebetsa oa makenete). Mofuta ona oa ho roala o sebelisoa lienjineng, lijenereithara, lisebelisoa tsa bongaka, li-sensor, lits'ebetso tsa likoloi, ho boloka, lits'ebetso tse tšesaane tsa ho beha lifilimi le lipompo.
Nickel e ntšo: Thepa ea seaparo sena e tšoana le ea ho roala ha nickel, ka phapang ea hore ts'ebetso e eketsehileng e hlahisoa, kopano e ntšo ea nickel. Thepa e tšoana le ea tloaelo ea nickel plating; ka ho khetheha hore ho roala hona ho sebelisoa lits'ebetsong tse hlokang hore karolo ea pono ea sengoathoana e se ke ea khanya.
Khauta: Mofuta ona oa ho roala o atisa ho sebelisoa lefapheng la bongaka hape o loketse ho sebelisoa ha o kopana le 'mele oa motho. Ho na le tumello ho tsoa ho FDA (Taolo ea Lijo le Lithethefatsi). Tlas'a seaparo sa khauta ho na le karolo e nyenyane ea Ni-Cu-Ni. Mocheso o moholo oa ho sebetsa o boetse o ka 200 ° C. Ho phaella tšimong ea meriana, ho roala khauta ho boetse ho sebelisoa bakeng sa mabenyane le merero ea ho khabisa.
Zinc: Haeba mocheso o phahameng oa ho sebetsa o ka tlase ho 120 ° C, mofuta ona oa ho roala o lekane. Litšenyehelo li tlase 'me makenete e sirelelitsoe khahlanong le kutu sebakeng se bulehileng. E ka khomareloa tšepeng, le hoja sekhomaretsi se entsoeng ka mokhoa o khethehileng se tlameha ho sebelisoa. Ho roala zinki ho loketse ha feela lithibelo tse sireletsang bakeng sa makenete li le tlase ebile ho na le mocheso o tlase o sebetsang.
Parylene: Ho roala hona ho boetse ho amoheloa ke FDA. Ka hona, li sebelisoa bakeng sa lits'ebetso tsa bongaka 'meleng oa motho. Mocheso o phahameng ka ho fetisisa oa ho sebetsa ke hoo e ka bang 150 ° C. Sebopeho sa limolek'hule se na le metsoako ea hydrocarbon e nang le lesale e nang le H, Cl le F. Ho itšetlehile ka sebopeho sa limolek'hule, mefuta e fapaneng e khetholloa e le: Parylene N, Parylene C, Parylene D le Parylene. HT.
Epoxy: Lesela le fanang ka thibelo e babatsehang khahlanong le letsoai le metsi. Ho na le sekhomaretsi se setle haholo ho tšepe, haeba makenete e khomaretsoe ka sekhomaretsi se khethehileng se loketseng limakete. Mocheso o phahameng ka ho fetisisa oa ho sebetsa ke hoo e ka bang 150 ° C. Liaparo tsa epoxy hangata li ntšo, empa hape li ka ba tšoeu. Likopo li ka fumaneha lekaleng la maoatle, lienjineri, lisensara, thepa ea bareki le lefapha la likoloi.
Limanete tse kentsoeng ka polasetiking: kapa hape li bitsoa over-moulded. Tšobotsi ea eona e ka sehloohong ke tšireletso ea eona e babatsehang ea makenete khahlanong le ho robeha, liphello le ho bola. Lera le sireletsang le fana ka tšireletso khahlanong le metsi le letsoai. Mocheso o moholo oa ho sebetsa o itšetlehile ka polasetiki e sebelisoang (acrylonitrile-butadiene-styrene).
E Thehiloe PTFE (Teflon): Joalo ka seaparo se kentsoeng / polasetiki le sona se fana ka tšireletso e ntle ea makenete khahlano le ho robeha, litlamorao le kutu. Makenete e sirelelitsoe khahlanong le mongobo, metsi le letsoai. Mocheso o moholo oa ho sebetsa o pota-potile 250 ° C. Ho roala hona ho sebelisoa haholo-holo liindastering tsa bongaka le indastering ea lijo.
Rubber: Sekoaelo sa rabara se sireletsa ka mokhoa o phethahetseng hore se se ke sa robeha, 'me se fokotsa ho bola. Lisebelisoa tsa rabara li hlahisa khanyetso e ntle haholo ea ho thella holim'a tšepe. Mocheso o moholo oa ho sebetsa o pota-potile 80-100 ° C. Li-magnets tsa pitsa tse nang le ho roala rabara ke lihlahisoa tse hlakileng le tse sebelisoang haholo.
Re fa bareki ba rona boeletsi ba litsebi le litharollo mabapi le mokhoa oa ho sireletsa limatlase le ho fumana ts'ebeliso e ntle ka ho fetisisa ea makenete. Ikopanye le rona mme re tla thabela ho araba potso ea hau.
