●Magnette NdFeBByakoreshejwe Byinshi Kubintu Byinshi bya Magnetique.Nyamara, imbaraga za magnesi zirwanya ruswa zibuza gukomeza gukoreshwa mubucuruzi, kandi gutwikira hejuru birakenewe.Imyenda ikoreshwa cyane muri iki gihe irimo amashanyarazi Ni-ibifuniko bishingiye, amashanyarazi Zn-bishingiyeimpuzu, kimwe na electrophoreque cyangwa spray epoxy coatings.Ariko hamwe niterambere ryiterambere ryikoranabuhanga, ibisabwa kugirango utwikireof NdFeBzirimo kwiyongera, kandi amashanyarazi asanzwe rimwe na rimwe ntashobora kuzuza ibisabwa.Igikoresho cya Al gishingiye kububiko ukoresheje tekinoroji yumubiri (PVD) ifite ibintu byiza biranga.
Technics Ubuhanga bwa PVD nko gusuka, gufata ion, hamwe no guhumeka bishobora guhumeka neza.Imbonerahamwe 1 irerekana amahame nibiranga kugereranya uburyo bwo gukwirakwiza amashanyarazi.
Imbonerahamwe 1 Kugereranya ibiranga uburyo bwo gukoresha amashanyarazi
Gusohora ni ibintu byo gukoresha ingufu zifite ingufu nyinshi kugirango bitere hejuru ikomeye, bitera atome na molekile hejuru yikibanza cyo guhanahana imbaraga za kinetic hamwe nuduce twinshi twinshi, bityo bikavamo hejuru.Yavumbuwe bwa mbere na Grove mu 1852. Ukurikije igihe cyayo cyiterambere, habayeho gusohora kwa kabiri, guterana kwa kaminuza, nibindi.Ariko, kubera ubushobozi buke bwo gusohora hamwe nizindi mpamvu, ntabwo yakoreshejwe cyane kugeza mu 1974 igihe Chapin yavumburaga magnetron iringaniye, bigatuma umuvuduko mwinshi nubushyuhe bwo hasi buba impamo, kandi tekinoroji ya magnetron yashoboye gutera imbere byihuse.Magnetron isuka ni uburyo bwo gusohora butangiza amashanyarazi ya electronique mugihe cyo gusohora kugirango yongere igipimo cya ionisation kugera kuri 5% -6%.Igishushanyo mbonera cya magnetron iringaniye iragaragara mu gishushanyo 1.
Igishushanyo 1 Igishushanyo mbonera cya magnetron iringaniye
Bitewe no kurwanya ruswa nziza, Al coating yabitswe naion imyukakubitsa (IVD) byakoreshejwe na Boeing nk'igisimbuza amashanyarazi Cd.Iyo ikoreshwa kuri NdFe yacumuyeB, ifite ahanini inyungu zikurikira:
1.High imbaraga zifatika.
Imbaraga zifatika za Al naNdFeBmuri rusange ≥ 25MPa, mugihe imbaraga zifatika za amashanyarazi asanzwe Ni na NdFeB zingana na 8-12MPa, naho imbaraga zifatika za Zn na NdFeB zifite amashanyarazi ni 6-10MPa.Iyi mikorere ituma Al / NdFeB ibereye porogaramu iyo ariyo yose isaba imbaraga zifatika.Nkuko bigaragara ku gishushanyo cya 2, nyuma yo guhinduranya inzinguzingo 10 zingaruka hagati ya (-196 ° C) na (200 ° C), imbaraga zifatika za Al coating zikomeza kuba nziza.
Igishushanyo cya 2 ifoto ya Al / NdFeB nyuma yingaruka 10 zingaruka zingaruka hagati ya (-196 ° C) na (200 ° C)
2. Shira muri kole.
Igifuniko cya Al gifite hydrophilicity kandi impande zifatika za kole ni nto, nta ngaruka zo kugwa.Igishushanyo cya 3 cyerekana 38mN hejuruimpagarara.Ikizamini cyamazi yakwirakwijwe rwose hejuru ya Al coating.
Figure 3. ikizamini cya 38mN hejuruimpagarara
3.Imyuka ya magnetiki ya Al iri hasi cyane (ugereranije ni: 1.00) kandi ntabwo bizatera gukingira ibintu bya magneti.
Ibi ni ingenzi cyane mugushira mubikorwa bya magneti ntoya mumurima wa 3C.Imikorere yo hejuru ni ngombwa cyane.Nkuko bigaragara ku gishushanyo cya 4, kuri D10 * 10 icyitegererezo cyinkingi, ingaruka za Al coating kuri magnetique ni nto cyane.
Igicapo 4 Impinduka mumiterere ya magnetiki ya NdFeB yacumuye nyuma yo gushira PVD Al igifuniko no gukwirakwiza amashanyarazi ya NiCuNi hejuru.
4.Uburinganire bwubunini nibyiza cyane
Kuberako yashyizwe muburyo bwa atome hamwe na cluster ya atome, ubunini bwikibiriti cya Al burashobora kugenzurwa rwose, kandi uburinganire bwubunini nibyiza cyane kuruta ubw'amashanyarazi.Nkuko bigaragara ku gishushanyo cya 5, Al coating ifite ubunini bumwe nimbaraga nziza zifatika.
IgishushanyoIgice 5 cyambukiranya Al / NdFeB
5.Uburyo bwo kubika tekinoroji ya PVD bwangiza ibidukikije rwose kandi ntakibazo gihumanya ibidukikije.
Ukurikije ibisabwa bifatika bikenewe, tekinoroji ya PVD irashobora kandi kubitsa abantu benshi, nka Al / Al2O3 multilayers ifite imbaraga zo kurwanya ruswa hamwe na Al / AlN ikoresheje ibikoresho byiza bya mashini.Nkuko bigaragara ku gishushanyo cya 6, imiterere yambukiranya ibice bya Al / Al2O3.
Figure 6Umusaraba igiceya Al/Al2O3
Kugeza ubu, ibibazo nyamukuru bigabanya inganda za Al coatings kuri NdFeB ni:
(1) Impande esheshatu za magneti zabitswe kimwe.Ibisabwa kugirango ukingire rukuruzi ni ukubika igifuniko gihwanye hejuru yinyuma ya magneti, bisaba gukemura uruziga rwibice bitatu bya rukuruzi mugutunganya ibyiciro kugirango harebwe ubwiza bwikibiriti;
(2) Igikorwa cyo kwambura ubusa.Mubikorwa binini byo gutunganya inganda, byanze bikunze ibicuruzwa bitujuje ibyangombwa bizagaragara.Kubwibyo, birakenewe gukuraho Al itujuje ibyangombwa kandiongera urindeitabangamiye imikorere ya magnet ya NdFeB;
(3) Ukurikije ibidukikije byihariye, magnet ya NdFeB yacumuye ifite amanota menshi.Niyo mpamvu, birakenewe kwiga uburyo bukwiye bwo kurinda amanota atandukanye;
(4) Gutezimbere ibikoresho bibyara umusaruro.Igikorwa cyo kubyaza umusaruro gikeneye kwemeza umusaruro ushimishije, bisaba iterambere ryibikoresho bya PVD bikwiranye no kurinda magnet ya NdFeB kandi bifite umusaruro mwinshi;
(5) Kugabanya ikiguzi cy'umusaruro w'ikoranabuhanga wa PVD no kuzamura ubushobozi bwo guhangana ku isoko;
Nyuma yimyaka yubushakashatsi niterambere ryinganda.Ikoranabuhanga rya Hangzhou Magnet ryashoboye gutanga ibicuruzwa byinshi bya PVD Al byuzuye kubakiriya.Nkuko bigaragara ku gishushanyo 7, amafoto yibicuruzwa bijyanye.
Igicapo 7 Al yatwikiriye MagnF ya NdFeB ifite imiterere itandukanye.
Igihe cyo kohereza: Ugushyingo-22-2023
