Pehea e hana ʻia ai nā magnet apo Neodymium?

Inā ua wehe ʻoe i kahi pahu o nā magnet apo i kūpono ʻole i kāu rotor, ua nalowale ka ikaika ma hope o hoʻokahi mahina, a i ʻole ua pala ma mua o kou hoʻokomo ʻana iā lākou, ua ʻike ʻoe i ka manaʻo. ʻO ka pilikia maʻamau ʻaʻole ia ka mea - akā pehea i hana ʻia ai ka magnet.

Ua nānā au i nā mea kūʻai e manaʻo nei e hele mai nā magnet apo āpau mai ka laina like. ʻAʻole lākou. ʻO ka hakahaka ma waena o kahi magnet apo "lawa maikaʻi" a me ka mea e holo ana no nā makahiki i loko o kahi motika a sensor paha e iho i lalo i nā ʻanuʻu hana āu e ʻike ʻole ai.

Eia ka mea e hana maoli ana i loko o kahi hale kūʻai magnet maʻamau - a kahi e komo malū ai ka hapa nui o nā hewa pipiʻi.

Lawe wikiwiki

Hoʻomākaukau mea hana
Kaʻina hana sintering
Mīkini a me ka uhi ʻana
Kuhikuhi Magnetization
Hoʻāʻo ka mana maikaʻi

Nā Kikoʻī Koʻikoʻi no nā Magnets Apo Neodymium

Ma mua o ko kākou hele ʻana ma ka papahele o ka hale hana, e hoʻomaopopo kākou i hoʻokahi mea. ʻAʻole hiki iā ʻoe ke hana pololei i kahi magnet apo inā he palupalu nā kikoʻī.
ʻO ka wehewehe ʻana i nā ana kūpono o ka magnet apo ka kānana mua ma waena o kahi ʻāpana e hāʻule ana i loko o kāu hui a me kahi e paʻa ai a wili paha. E hoʻi hou mākou i nā hoʻomanawanui ma hope - akā e ʻike ʻoe e pili ana kēlā me kēia ʻanuʻu i lalo i kāu kaha kiʻi.

 

ʻIkepili o ke Kaʻina Hana Hana Magnet Neodymium Ring

Hoʻomākaukau Mea Hana

Hoʻomaka ia me ka neodymium maka, ka hao, a me ka boron - me kekahi mau mea hoʻohui e like me ka dysprosium a i ʻole terbium no ke kūpale ʻana i ka wela. Hoʻoheheʻe ʻia ka mea hoʻohui i loko o ka umu hoʻokomo vacuum, a laila hoʻolei ʻia i loko o nā ʻāpana lahilahi. Hoʻolilo ʻia kēlā mau ʻāpana i pauka ʻoi.

Eia kahi e ʻoki ʻia ai nā kihi: hoʻohana nā mea hana makepono i nā ʻōpala kūlike ʻole a i ʻole e kāpae i nā nānā maʻemaʻe. ʻO ka hopena? Nā magnet apo e ana maikaʻi ana akā hana i 15-20% ma lalo o ka spec. Hoʻouna mākou i kēlā me kēia pūʻulu o nā mea maka i kahi lab waho. Inā emi ka nui o ke kalapona a i ʻole ka oxygen ma 0.05%, hōʻole mākou. He mea paʻakikī kēlā a hiki i kou hoʻololi ʻana i 10,000 mau apo no ka mea ua nalowale lākou i ka flux i loko o kahi motika wela.

Kaʻina Hana Sintering (Pauka Metallurgy)

Ua kaomi ʻia ka pauka maikaʻi i loko o kahi make ma lalo o kahi kahua magnetic ikaika. No nā magnet apo, hoʻonohonoho kēlā kahua i nā ʻāpana - hoʻoholo pololei kēia hoʻonohonoho ʻana i kāu hopena magnetic hope loa. A laila hele nā ​​​​​​mea paʻa "ʻōmaʻomaʻo" i kaomi ʻia i loko o kahi umu sintering.

Hoʻomehana ka sintering i ka mea a kokoke i ke kiko heheʻe (ma kahi o 1060–1100°C) i loko o kahi vacuum a i ʻole ke kinoea inert. Hoʻohui pū nā ʻāpana, e hoʻemi ana i ka ʻāpana ma kahi o 15–20% ma ke ʻano i kāohi ʻia. Hiki ke wānana ʻia kēia emi ʻana - akā inā wale nō e hoʻonohonoho ʻia ka mahana a me ka manawa o kāu umu. ʻO ka drift 10°C no hoʻokahi hola hiki ke hana i nā apo i porous loa a i ʻole brittle loa.

Ma hope o ka sintering, hoʻomaʻalili ʻia nā magnet a laila hoʻomaʻamaʻa ʻia (tempered) i nā ʻanuʻu he nui. Hoʻomohala kēia i ka coercivity hope loa - ke kūʻē ʻana o ka magnet i ka demagnetization. E kāpae i kahi pōʻaiapuni tempering a e demagnetize ponoʻī kāu magnet apo i loko o kahi pā mahana.

Mīkini a me ke Hoʻoponopono ʻana

Puka mai nā makeneka apo sintered mai loko mai o ka umu me ka paʻakikī a me ka palupalu akā ʻaʻole i hiki i nā ana hope loa. Hana ʻia ka mīkini me nā mea hana i uhi ʻia me ka daimana a i ʻole ka mīkini hoʻokuʻu uila (EDM) no ka mea, ʻaʻole e ʻoki ʻia e ka carbide maʻamau.

Ua wili ʻia ke anawaena o loko (ID) a me ke anawaena o waho (OD) i ka hoʻomanawanui. No ke apo ʻoihana maʻamau, paʻa mākou i ka ±0.05mm ma ID a me OD. No nā noi kikoʻī e like me nā apo encoder, iho ia i ±0.01mm. Hoʻomanaʻo wau i kahi pūʻulu kahi i kuhikuhi ai ka mea kūʻai aku i ka "hoʻomanawanui maʻamau" - a laila hoʻopiʻi ʻo 0.1mm runout i hoʻoulu ai i kā lākou bearing i ka wela nui. I kēia manawa ke nīnau mau nei mākou: he aha ka ʻāpana male, a he aha ka ʻae?

 

Kaʻina Hana Magnetization a me ka Uhi ʻana

ʻO ka Magnetization Axial vs Radial

ʻO kēia kahi e lilo ai kahi magnet apo i mea pono a pono ʻole paha. ʻAʻole ka Magnetization kahi hoʻonohonoho paʻamau - pono e kuhikuhi ʻia.

- ʻO ke ʻano o ka magnetization axial aia nā pou ʻākau a me hema ma nā ʻaoʻao pālahalaha ʻelua. He mea maʻamau kēia no nā hui magnetic, nā apo paʻa, a me nā ʻaha leo.
- ʻO ke ʻano o ka magnetization radial, aia nā pou ma nā anawaena o loko a me waho - aia kekahi ʻaoʻao i ka ʻākau, aia ke alo ʻē aʻe i ka hema, akā pana aku ke kahua magnetic ma ke ʻano radial. ʻO kēia ka mea āu e pono ai no nā rotors motor DC brushless, nā bearings magnetic, a me kekahi mau sensor.

Ua ʻike au i nā ʻenekinia e kauoha ana i 5000 mau apo magnet radially, a ʻike wale ua poina iā lākou e haʻi i ka hale hana i ka helu pole (2-pole, 4-pole, 8-pole). Hana ka hale hana iā lākou āpau he 2-pole. Hana nā apo, ʻaʻole naʻe no ka noi. E hōʻoia mau i ke kuhikuhi magnetization o nā magnet apo me kahi kiʻi e hōʻike ana i ke kuhikuhi pole e pili ana i kahi keyway a i ʻole ka māka.

Nā ʻAno Uhi a me ko lākou hopena

Nā mākēneki apo Neodymiumhe 60% ka hao - e popo lākou i loko o nā hola i ka ea pulu. ʻAʻole hoʻonaninani ka uhi ʻana.

- NiCuNi (nickel-keleawe-nickel): Kūlana maʻamau no ka hoʻohana ʻoihana maloʻo. Paʻakikī, alakaʻi, a lahilahi (10–20µm). Akā hoʻomaka kekahi ʻōpala a me ka pala.
- Epoxy: Mānoanoa (25–50µm), ʻaʻole alakaʻi, a ʻoi aku ka kūpaʻa i ka pīpī paʻakai a me ka makū. He mea ʻino akā paʻakikī. Hoʻohana mākou ia no nā mea ʻike waho a me nā noi moana.
- Zinc: Makepono a hoʻopōmaikaʻi. Maikaʻi no nā ʻaha kūloko i ʻike ʻole ʻia ka condensation.
- Passivation / phosphating: Lahilahi loa - no nā magnet wale nō e hoʻopili ʻia a hoʻoheheʻe ʻia paha, no ka mea, ʻoi aku ka maikaʻi o ka pipili ʻana o nā mea hoʻopili i kahi ʻili ʻinoʻino a porous.

Ua kāpae kekahi mea kūʻai aku i ka epoxy a hoʻohana i nā apo nickel ma luna no kahi sensor pamu wai. ʻEkolu mahina ma hope mai, ua ʻōpala nā apo āpau. ʻOi aku ke kumukūʻai o ka palapala hoʻokō ma mua o ka pūʻulu holoʻokoʻa. Mai kuhi - e hoʻāʻo i kahi laʻana ma kou wahi maoli.

 

Ka Mana Hoʻomalu Kūlana ma ka Hana ʻana o ka Magnet

Ka Hoʻomanawanui a me ka Hoʻāʻo ʻana o ka Dimensional

Nānā ʻia kēlā me kēia makeneka apo - akā ʻaʻole nānā like nā hale hana āpau. Hoʻohana mākou i ke ana ʻike maka no ka OD, ID, a me ka mānoanoa ma 100% o nā kauoha maʻamau. Nānā kahi micrometer laser i kēlā me kēia ʻāpana ma lalo o ke kekona. ʻO kēlā me kēia apo ma waho o ka ʻae ʻia e hele i loko o kahi ʻōpala.

Akā eia ka pahele: pili ka hoʻomanawanui i nā mea ʻekolunā ana kūʻokoʻaHiki i ke apo ke loaʻa kahi OD kūpono, kahi ID he 0.03mm ka liʻiliʻi, a me ka mānoanoa he 0.1mm ke kaʻawale. ʻAʻole nō ia e hōʻuluʻulu ʻia. ʻO ia ke kumu e pono ai ʻoe e kuhikuhi i nā ana he koʻikoʻi a me nā ana he kuhikuhi.

Hoʻāʻo Hana a me ke Kūpaʻa

Ana ʻia ke kahe magnetic me kahi coil Helmholtz a i ʻole kahi mika Gauss ma nā wahi he nui a puni ke apo. No nā apo magnetized axially, nānā mākou i ke kahua waena a me ke kahua kokoke i nā kihi. No nā apo magnetized radially, hoʻohuli mākou i ka ʻāpana a nānā i ke kūlike o ka pole-to-pole - ʻo ka ʻokoʻa ma luna o 3% ʻo ia hoʻi ke kūlike ʻole i ka wā e kaomi ana.

ʻO ka hoʻāʻo ʻana i ka mahana kekahi papa ʻē aʻe. Lawe mākou i ʻelima mau apo mai kēlā me kēia ʻāpana, hoʻokomo iā lākou i loko o ka umu ma kāu mahana kiʻekiʻe loa i kuhikuhi ʻia (e ʻōlelo 120°C) no ʻelua hola, hoʻomaʻalili iā lākou, a ana hou i ke kahe. Inā nalowale lākou ma mua o 5% o kā lākou hana mua, e hōʻole ʻia ka ʻāpana. He hoʻāʻo maʻamau kēlā e hōʻole ʻia e nā mea hoʻolako "makemake ʻole" he nui no ka mea he nui ka manawa a me ka ʻōpala o nā mea.

 

ʻO ka mea a nā mea kūʻai aku e hōʻoia ai ma mua o ke kauoha ʻana i nā magnet apo Neodymium

Nā Ana a me ke Hoʻomanawanui

E kikoʻī. Mai kākau "OD 20mm". E kākau "OD 20.00 ±0.05 mm, ID 10.00 +0.02/-0.00 mm, mānoanoa 5.00 ±0.03 mm". E haʻi i ka mea hana i nā ʻili e pili ana i nā ʻili. A e noi mau i kahi hōʻike nānā mua ma mua o ka hana piha ʻana.

Nā Papa Mea

Hōʻike nā papa mai N35 a i N55 iā ʻoe i ka huahana ikehu kiʻekiʻe loa. ʻOi aku ka nui o ka helu N = ʻoi aku ka ikaika akā ʻoi aku ka palupalu a ʻaʻole i hoʻomanawanui i ka wela. He mea kupaianaha ka magnet apo N52 ma ka mahana o ka lumi. ʻO ka magnet apo N52 ma 70°C e nalowale ana he 12% o kona ikaika. ʻAneʻane ʻole ka nalowale o ka N42SH ma ka mahana like. E hoʻohālikelike i ka papa i kou mahana hana, ʻaʻole wale ka helu papa inoa.

Kuhikuhi Magnetization

ʻAʻole kēia he "mea maikaʻi ke loaʻa". ʻO ia ka palena hoʻokahi i kuhikuhi hewa ʻia. E kau i kahi pua ma kāu kaha kiʻi. E kākau "axial magnetized, ʻākau ma luna o ka maka". A i ʻole "radial 4-pole, outer diameter north". Inā ʻaʻole hiki iā ʻoe ke noʻonoʻo iā ia, e noi no kahi hāpana magnetized - e hōʻike koke kahi ʻāpana pepa a me nā waihona hao iā ʻoe i ke ʻano.

 

Hana Hana Maʻamau no nā Magnets Apo Neodymium

Kaʻina Hana Kūkulu-a-Paʻi

Inā makemake ʻoe i kahi magnet apo i loaʻa ʻole i loko o kahi papa inoa - kahi lakio ID/OD maʻamau ʻole, kahi uhi kikoʻī, kahi ʻano multi-pole - ke nānā nei ʻoenā magnet neodymium maʻamauHe maʻalahi ke kaʻina hana: hoʻouna ʻoe i kahi kiʻi a i ʻole kahi laʻana, nānā mākou i nā hoʻomanawanui a me ka hiki ke hana ʻia nā mea hana, a laila hāʻawi mākou i ke kumukūʻai o nā mea hana (inā loaʻa) a me ke kumukūʻai no kēlā me kēia ʻāpana.

ʻO ka mea hana no nā magnet apo he hoʻonohonoho maʻamau o nā make a me nā mea wili. E manaʻo i $500–$2000 ma mua no nā nui maʻamau ʻole. Hoʻonui ʻia kēlā kumukūʻai ma luna o ka nui o kāu kauoha. No nā nui kiʻekiʻe (10,000+ ʻāpana), he mea liʻiliʻi ka mea hana no kēlā me kēia ʻāpana.

MOQ a me ka Manawa Alakaʻi

ʻO ka nui o nā kauoha liʻiliʻi no nā magnet apo maʻamau e hoʻomaka pinepine ana ma 2000-5000 mau ʻāpana no ka hana sintering. E emi iho kekahi mau mea hoʻolako (500-1000 mau ʻāpana) me ka hoʻohana ʻana i ka neodymium i hoʻopaʻa ʻia a i ʻole nā ​​​​blanks stock i hoʻololi ʻia, akā ʻaʻole like ka hana - ʻoi aku ka nāwaliwali o nā magnet i hoʻopaʻa ʻia ma kahi o 30%.

Nā manawa alakaʻi: 4-6 mau pule no ka hana ʻana i nā mea hana a me nā laʻana mua, a laila 4-6 mau pule no ka hana ʻana a me ka uhi ʻana ma hope o ka ʻae ʻia ʻana o ka laʻana. Hiki ke kauoha wikiwiki ʻia (2-3 mau pule āpau) akā e manaʻo e uku i kahi uku kiʻekiʻe he 30-50% a ʻae i nā ʻae ʻana paʻa ma ka papa kuhikuhi o ka hale hana, ʻaʻole naʻu.

 

Hoʻohana ʻia nā Neodymium Ring Magnets i nā mea āpau mai nā mīkini EV a i nā encoders lapaʻau a hiki i nā mea paʻa. Ua oʻo ke kaʻina hana akā ʻaʻole kala. E kiʻi i nā kikoʻī pololei, e hoʻāʻo i kahi prototype, a e hana pū me kahi mea hoʻolako e nīnau ana - ʻaʻole ka mea e ʻōlelo wale "ʻae" i kēlā me kēia helu āu e kākau ai.

Inā makemake ʻoe i kahi lua o nā maka ma kāu kaha kiʻi makeneka apo ma mua o kou kau ʻana i kahi kauoha nui, e hoʻokaʻaʻike mai. Ua ʻike mākou i nā hewa hoʻomanawanui e uku ai i kā mākou mea kūʻai aku i ʻeono helu. ʻO ia ke ʻano hewa āu e hana ai hoʻokahi wale nō.

ʻenehana Fullzen | Mea Hana Magnet Neodymium Maʻamau

Mai ka mea a i ka magnetization - hana ʻia e like me kou makemake.