Nigute Wokwirinda Demagnetisation ya U Ifite Magnets Mubushuhe Bwinshi

U-shusho ya neodymiumtanga imbaraga zidasanzwe za magnetiki - kugeza ubushyuhe butangiye. Mubisabwa nka moteri, sensor, cyangwa imashini zinganda zikora hejuru ya 80 ° C, demagnetisation idasubirwaho irashobora guhagarika imikorere. Iyo U-magnet itakaje 10% gusa ya flux yayo, umurima wibanze mumwanya wacyo urasenyuka, bigatera sisitemu kunanirwa. Dore uburyo bwo kurengera ibishushanyo byawe:

Impamvu Ubushyuhe Bwica U Magnets Byihuse

Imashini ya Neodymium itesha agaciro iyo ingufu zumuriro zibangamiye guhuza kwa atome. U-shusho ihura ningaruka zidasanzwe:

• Imyitwarire ya Geometrike: Kwunama bitera ingingo zimpagarara zoroshye kwaguka kwinshi.
• Kwibanda kwa Flux: Ubucucike bwumurima mwinshi mu cyuho bwihutisha gutakaza ingufu kuri temps hejuru.
• Kunanirwa kwa Asimmetric: Ukuguru kumwe demagnetizing mbere yundi kutaringaniza umuzenguruko.

Ingamba zo Kurinda Ingingo 5

1. Guhitamo Ibikoresho: Tangira ufite amanota meza

Ntabwo NdFeB yose ingana. Shyira imbere amanota menshi (H seri) amanota:

2. Gukingira Ubushyuhe: Gabanya inzira yubushyuhe

Inyigo: Uruganda rukora moteri ya servo rwagabanije U-magnet kunanirwa 92% nyuma yo kongeramo 0.5mm ya mika hagati ya coil na magnesi.

3. Igishushanyo mbonera cyumuzunguruko: Outsmart Thermodynamics

• Abazamu ba Flux: Isahani yicyuma hakurya ya U-icyuho ikomeza inzira ya flux mugihe cyo guhungabana.
• Igice cya Magnetisiyasi: Koresha magnesi kuri 70-80% byuzuye byuzuye kugirango uve "icyumba cyumutwe" kugirango utwarwe nubushyuhe.
• Igishushanyo-Gufunga Ibishushanyo: Shyiramo U-magneti mumazu yicyuma kugirango ugabanye umwuka kandi uhindure ibintu neza.

"Umuzamu wateguwe neza agabanya ibyago bya demagnetisation 40% kuri 150 ° C na U-magneti yambaye ubusa."
- Ibikorwa bya IEEE kuri Magnetique

4. Kurinda ibikorwa

• Gutandukanya umurongo: Ntuzigere urenga igipimo cyihariye cy'ubushyuhe (reba imbonerahamwe ikurikira).
• Gukurikirana Ubushyuhe: Shyiramo ibyuma hafi ya U-amaguru kugirango umenyeshe igihe.
• Irinde Amagare: Gushyushya byihuse / gukonjesha bitera microcracks → demagnetisation yihuse.

Gutanga umurongo Utanga urugero (Icyiciro cya N40SH):

Gutakaza Br │ 0% │ 8% │ 15% │ 30% *

5. Kwambara neza no guhuza

• Epoxy Reinforcements: Yuzuza microcracks kuva kwaguka k'ubushyuhe.
• Ubushyuhe bwo hejuru cyane: Parylene HT (≥400 ° C) iruta NiCuNi isanzwe hejuru ya 200 ° C.
• Guhitamo ibifatika: Koresha epoxies yuzuye ibirahure (serivisi temp> 180 ° C) kugirango wirinde gutandukana kwa magneti.

Ibendera ritukura: E Magnet yawe U irananirana?

Menya hakiri kare demagnetisation:

1. Asymmetry yumurima:> 10% flux itandukaniro hagati ya U-amaguru (gupima hamwe na Hall probe).
2. Ubushyuhe bwo hejuru: Magnet yumva ashyushye kuruta ibidukikije - byerekana igihombo cya eddy.
3. Ibitonyanga byimikorere: Moteri itakaza umuriro, sensor yerekana drift, abatandukanya babura umwanda mwinshi.

Iyo Kwirinda Kunanirwa: Amayeri yo Kurokora

1. Ongera ukoreshe magnetisation: Birashoboka niba ibikoresho bitangiritse muburyo (bisaba> 3T pulse field).
2. Ongera utwikire: Wandike isahani yangiritse, ongera ushyire hejuru-temp.
3. Gusimbuza Porotokole: Hindura amanota ya SH / UH + kuzamura ubushyuhe.

Intsinzi

Urwego rwohejuru rwa Hci + Buffer yubushyuhe + Igishushanyo cyumuzunguruko cyubwenge = Ubushyuhe-butarwanya U Magneti

U-shusho ya neodymium magnet itera imbere mubidukikije iyo wowe:

1. Hitamo amanota SH / UH muby'amadini kuri> 120 ° C.
2. Gutandukanya amasoko yubushyuhe hamwe nimbogamizi zumwuka / ceramic
3. Hindura flux hamwe nabazamu cyangwa amazu
4. Kurikirana ubushyuhe ku cyuho