Otu esi egbochi Demagnetization nke Igwe Ọdụdọ U Ese na gburugburu Okpomọkụ dị elu

Ihe ndọta neodymium dị Unyefee ndọta na-enweghị atụ - ruo mgbe okpomọkụ dara. N'ime ngwa dị ka moto, sensọ, ma ọ bụ igwe mmepụta ihe na-arụ ọrụ karịa 80ºC, demagnetization na-enweghị ike ịtụgharị nwere ike imebi arụmọrụ. Mgbe U-magnet tụfuru naanị 10% nke mgbanwe ya, mpaghara etinyebere na oghere ya na-ada, na-akpata ọdịda sistemụ. Nke a bụ otu esi echekwa atụmatụ gị:

Ihe kpatara Okpomọkụ ji egbu Magnet gị ngwa ngwa

Neodymium ndọta demagnetize mgbe ike ọkụ na-akpaghasị nhazi atọm ha. U-ụdị chere ihe egwu pụrụ iche chere:

• Nchegbu Geometric: Ihulata na-emepụta ebe esemokwu dị n'ime na-adịghị ike na mgbasawanye ọkụ.
• Ntinye uche Flux: Njupụta dị elu dị na oghere ahụ na-eme ka ọnwụ ike dịkwuo elu n'oge dị elu.
• Esemmetric ọdịda: Otu ụkwụ na-emebi emebi tupu nke ọzọ emebie sekit magnetik.

Usoro nchekwa 5-point

1. Nhọrọ ihe: Malite na ọkwa ziri ezi

Ọ bụghị NdFeB niile hà nhata. Wepụta ọkwa mmanye dị elu ụzọ (usoro H):

2. Nchekwa okpomọkụ: gbajie ụzọ okpomọkụ

Ọmụmụ ihe: Onye na-emepụta moto servo belatara ọdịda U-magnet site na 92% mgbe ọ gbakwụnyere 0.5mm mica spacers n'etiti coils na magnets.

3. Igwe Igwe Igwe Igwe Ọdụdọ: Outsmart Thermodynamics

• Ndị na-echekwa Flux: Efere ígwè gafee oghere U-na-ejigide ụzọ mgbanwe n'oge ujo ọkụ.
• Magnetization ele mmadụ anya n'ihu: Gbaa magnetik na 70-80% nke saturation zuru oke ka ịhapụ "ụlọ isi" maka mkpagharị ọkụ.
• Nhazi nke mechiri emechi: Tinye U-magnets n'ime ụlọ nchara iji belata mkpughe ikuku wee kwụsie ike.

"Onye na-eche nche nke ọma na-ebelata ihe ize ndụ demagnetization site na 40% na 150 ° C vs. bare U-magnets."
- Azụmahịa IEEE na Magnetik

4. Nchekwa ọrụ

• Akpụkpọ ụkwụ na-akpachapụ anya: Agafela oke okpomoku akọwapụtara nke ọma (lee eserese dị n'okpuru).
• Nleba anya okpomọkụ: Tinye ihe mmetụta n'akụkụ U-ụkwụ maka mgbake ozugbo.
• Zenarị ịgba ígwè: ikpo ọkụ/iju oyi na-akpata microcracks → demagnetization ngwa ngwa.

Ihe Nlereanya Nkwụghachi (N40SH Ọkwa):

Mfu │ 0% │ 8% │ 15% │ 30%*

5. Akwa mkpuchi & nkwekọ

• Mmekwa Epoxy: Na-ejuputa microcracks sitere na mgbasawanye ọkụ.
• Mkpuchi Okpomọkụ dị elu: Parylene HT (≥400°C) karịrị ọkọlọtọ NiCuNi plating n'elu 200°C.
• Nhọrọ nrapado: Jiri epoxies jupụtara na iko (okpomọkụ ọrụ>180°C) iji gbochie ndọpụ ndọta.

Ọkọlọtọ uhie: Igwe Ọdụdọ U gị ọ na-ada?

Chọpụta demagnetization nke mmalite:

1. Ubi asymmetry:>10% mgbanwe mgbanwe dị n'etiti U-ụkwụ (jiri nyocha Ụlọ Nzukọ tụọ).
2. Okpomọkụ na-akpụ akpụ: Igwe Ọdụdọ na-ekpo ọkụ karịa gburugburu - na-egosi mfu dị ugbu a.
3. Mbelata arụmọrụ: Motors na-efunahụ torque, ihe mmetụta na-egosi mkpagharị, ndị na-ekewapụ na-atụ uche mmetọ ferrous.

Mgbe mgbochi na-ada: Usoro nzọpụta

1. Re-magnetization: Ọ ga-ekwe omume ma ọ bụrụ na ihe anaghị emebi emebi (chọrọ> 3T pulse field).
2. Mkpuchi mkpuchi ọzọ: Wepụ ihe mkpuchi mebiri emebi, tinyeghachi mkpuchi okpomọkụ dị elu.
3. Protocol ngbanwe: Jiri akara SH/UH gbanwee + nkwalite okpomọkụ.

Usoro mmeri

Ọkwa Hci dị elu + Nchekwa ọkụ + Smart Circuit Design = Igwe Ọkụ na-eguzogide Okpomọkụ

Ihe ndọta neodymium nke yiri U na-eme nke ọma na gburugburu ebe ọjọọ mgbe ị:

1. Họrọ akara SH/UH n'ụzọ okpukpe maka>120°C ngwa
2. Kewapụ na isi mmalite okpomọkụ nwere ihe mgbochi ikuku/seramiiki
3. Jiri ndị na-echekwa ma ọ bụ ụlọ mee ka ọ daa jụụ
4. Nyochaa okpomọkụ na oghere ahụ