Uburyo bwo kwirinda ko magneti zifite ishusho ya U zigabanuka mu bidukikije bifite ubushyuhe bwinshi

Sumateri za neodymium zifite ishusho ya Ugutanga imbaraga za rukuruzi zitagereranywa - kugeza ubushyuhe butangiye. Mu bikorwa nka moteri, sensors, cyangwa imashini z'inganda zikora hejuru ya 80°C, demagnetization idasubirwaho ishobora kwangiza imikorere. Iyo U-magnet itakaje 10% gusa by'ingufu zayo, imbaraga zivanze mu cyuho cyayo zirasenyuka, bigatuma sisitemu inanirwa gukora. Dore uko wakwirinda imiterere yawe:

Impamvu Ubushyuhe bwica magneti vuba

Sumake za Neodymium zigabanya ingufu za magneti iyo ingufu z'ubushyuhe zibangamiye uburyo atome zihuzwa. Imiterere ya U ihura n'ingorane zidasanzwe:

• Umuvuduko wa Geometrike: Gupfunyika bituma imbere hashobora kwaguka bitewe n'ubushyuhe.
• Gushyira ingufu mu kirere: Ubucucike bwinshi mu busitani bwihutisha gutakaza ingufu mu bushyuhe bwinshi.
• Kunanirwa guhindagurika: Ukuguru kumwe gukuraho magneti mbere y'uko ukundi kugorana kw'uruziga rwa rukuruzi.

Ingamba zo Kwirinda Amanota 5

1. Guhitamo ibikoresho: Tangira n'icyiciro gikwiye

Si NdFeB zose zingana. Shyira imbere amanota yo gukoresha ingufu nyinshi (uruhererekane rwa H):

2. Gukingira ubushyuhe: Guca inzira y'ubushyuhe

Inyigo y'Urubanza: Imashini ikora moteri ya servo yagabanyije 92% by'intege nke za U-magnet nyuma yo kongeramo 0.5mm mica spacers hagati ya coils na magnets.

3. Igishushanyo mbonera cy'uruziga rwa rukuruzi: Kurusha ubuhanga Thermodynamics

• Ibikoresho byo kubikamo amashanyarazi: Ibyuma bifunganye ku cyuho cya U bikomeza inzira yo gusohoka mu gihe cy'ihungabana ry'ubushyuhe.
• Gukoresha ingufu za rukuruzi ku rugero rwa 70-80% by'ubwinshi bw'amashanyarazi kugira ngo ubushyuhe bugere ku rugero rwa "headroom".
• Imiterere y'Umugozi Ufunze: Shyiramo imashini za U mu byuma bicukura kugira ngo ugabanye ikirere gikwirakwira no gutuza ikirere.

"Imashini ikora neza igabanya ibyago byo kwangiza amashanyarazi ku kigero cya 40% kuri dogere selisiyusi 150 ugereranije na U-magnets zidafite ubushyuhe."
– Ibikorwa bya IEEE kuri Magnetics

4. Uburinzi ku mikorere

• Imirongo igabanya ubushyuhe: Ntukarenze urugero rw'ubushyuhe rugenwa n'urwego runaka (reba imbonerahamwe iri hepfo).
• Gukurikirana ubushyuhe: Shyira sensor hafi y'amaguru ya U kugira ngo ubone amakuru mu gihe nyacyo.
• Irinde gushyuha/gukonjesha vuba bitera uduce duto tw’amashanyarazi → kwihuta cyane mu gukuraho ingufu za magneti.

Urugero rw'inyuguti ihindagurika (Icyiciro cya N40SH):

Igihombo cya Br │ 0% │ 8% │ 15% │ 30%*

5. Gupfuka no Guhuza Ibikoresho Bigezweho

• Gukomeza Epoxy: Yuzuza uduce duto duto tw’ubushyuhe.
• Imyambaro ishyushye cyane: Parylene HT (≥400°C) irusha ikoreshwa rya NiCuNi risanzwe riri hejuru ya 200°C.
• Guhitamo kole: Koresha epoxies zuzuye ikirahure (ubushyuhe bwa serivisi >180°C) kugira ngo wirinde gutandukana kwa rukuruzi.

Ibimenyetso Bitukura: Ese Magnet yawe ya U iri kunanirwa?

Kumenya demagnetization y’imashini mu gihe cya mbere:

1. Ubusumbane bw'umurima: itandukaniro riri hagati y'amaguru ya U n'amaguru >10% (ripimwe hakoreshejwe icyuma gipima Hall).
2. Ubushyuhe bwinshi: Sukuma ishyuha cyane kurusha ibidukikije - bigaragaza igihombo cy'umuyoboro w'amazi.
3. Kugabanuka k'imikorere: Moteri zitakaza imbaraga, sensor zigaragaza ko zihindagurika, ibikoresho byo gutandukanya ibintu bidafite imyanda ya fer.

Iyo kwirinda binaniranye: Amayeri yo gukiza

1. Gusubiramo ingufu z'amashanyarazi: Birashoboka niba ibikoresho bitangiritse mu buryo bw'imiterere (bisaba imbaraga zo gutera umuvuduko wa 3T).
2. Gusiga irangi: Kuramo irangi ryangiritse, ongera ushyireho irangi rishyushye cyane.
3. Porotokole yo gusimbuza: Hindura ukoresheje amanota ya SH/UH + kongera ubushyuhe.

Formula yo Gutsinda

Igipimo cyo hejuru cya Hci + Gukoresha ubushyuhe + Igishushanyo mbonera cy'uruziga rw'ubwenge = Magnets za U zirwanya ubushyuhe

Ingufu za neodymium zifite ishusho ya U zikura neza mu bidukikije bikomeye iyo:

1. Hitamo amanota ya SH/UH mu buryo bukurikije amategeko ku bijyanye no gukoresha dogere selisiyusi >120
2. Irinde ahantu hashyuha ukoresheje imbogamizi z'umwuka/seramike
3. Gutuza ubwihindurize bw'amazi n'abayacunga cyangwa amazu
4. Kugenzura ubushyuhe ku cyuho