Yuav ua li cas thiaj tsim tau cov hlau nplaum neodymium?

Yog tias koj tau qhib ib pawg ntawm cov hlau nplaum uas tsis haum koj lub rotor, poob zog tom qab ib hlis, lossis xeb ua ntej koj txawm teeb tsa lawv, koj paub qhov kev xav. Qhov teeb meem feem ntau tsis yog cov khoom siv - nws yog li cas lub hlau nplaum tau ua.

Kuv tau pom cov neeg yuav khoom xav tias txhua lub nplhaib hlau nplaum los ntawm tib txoj kab. Lawv tsis ua. Qhov sib txawv ntawm lub nplhaib hlau nplaum "zoo txaus" thiab ib qho uas khiav tau ntau xyoo hauv lub cev muaj zog lossis lub sensor yog los ntawm cov kauj ruam tsim khoom uas koj yeej tsis tau pom.

Yog li ntawm no yog qhov tseeb tshwm sim hauv lub khw muag khoom hlau nplaum - thiab qhov twg feem ntau cov yuam kev kim heev nkag mus.

Siv Sai

Kev npaj khoom siv
Cov txheej txheem sintering
Kev siv tshuab thiab txheej
Kev taw qhia magnetization
Kev kuaj xyuas kev tswj xyuas zoo

Cov Lus Qhia Tseem Ceeb rau Neodymium Ring Magnets

Ua ntej peb yuav mus txog hauv lub hoobkas, cia peb tham meej meej. Koj yuav tsis tuaj yeem tsim lub nplhaib hlau nplaum kom raug yog tias cov lus qhia tsis meej.
Kev txhais qhov loj ntawm lub nplhaib hlau nplaum yog thawj qhov lim dej ntawm ib feem uas poob rau hauv koj lub rooj sib dhos thiab ib qho uas jams lossis wobbles. Peb yuav rov qab los rau qhov kam rau siab tom qab - tab sis paub tias txhua kauj ruam downstream nyob ntawm koj daim duab kos.

 

Kev Txheeb Xyuas Txog Cov Txheej Txheem Tsim Khoom Neodymium Ring Magnet

Kev Npaj Khoom Siv

Nws pib nrog cov neodymium nyoos, hlau, thiab boron - ntxiv rau ob peb yam khoom ntxiv xws li dysprosium lossis terbium rau kev tiv taus cua sov. Cov hlau no raug yaj hauv lub tshuab cua sov induction, tom qab ntawd pov rau hauv cov nplais nyias nyias. Cov nplais ntawd tau hloov mus ua hmoov av loj.

Nov yog qhov uas cov ces kaum raug txiav: cov chaw tsim khoom pheej yig siv cov khoom seem tsis sib xws lossis hla dhau qhov kev kuaj xyuas kev huv. Qhov tshwm sim? Cov hlau nplaum nplhaib uas ntsuas tau zoo tab sis ua haujlwm qis dua 15-20% spec. Peb xa txhua pawg ntawm cov khoom siv raw mus rau chav kuaj sab nraud. Yog tias cov pa roj carbon lossis cov pa oxygen poob qis los ntawm 0.05%, peb tsis lees txais nws. Qhov ntawd suab zoo li obsessive kom txog thaum koj tau hloov 10,000 lub nplhaib vim tias lawv poob flux hauv lub cev muaj zog kub.

Cov Txheej Txheem Sintering (Hmoov Metallurgy)

Cov hmoov zoo raug nias rau hauv lub pwm hauv qab lub zog sib nqus muaj zog. Rau cov hlau nplaum nplhaib, lub zog ntawd sib phim cov khoom me me - qhov kev sib phim no ncaj qha txiav txim siab koj qhov tso zis sib nqus kawg. Tom qab ntawd cov khoom sib xyaw "ntsuab" nias mus rau hauv lub cub tawg sintering.

Kev sintering ua rau cov khoom kub txog li qhov melting point (kwv yees li 1060–1100°C) hauv lub tshuab nqus tsev lossis roj inert. Cov khoom me me sib xyaw ua ke, ua rau qhov khoom me me li ntawm 15–20% hauv txoj kev tswj hwm. Qhov kev me me no tuaj yeem kwv yees tau - tab sis tsuas yog tias koj lub cub tawg kub thiab lub sijhawm raug hu. Kev hloov pauv 10°C rau ib teev tuaj yeem tsim cov nplhaib uas muaj qhov porous dhau lossis brittle dhau.

Tom qab sintering, cov hlau nplaum raug txias thiab tom qab ntawd laus (tempered) hauv ntau kauj ruam. Qhov no tsim qhov kawg coercivity - lub hlau nplaum txoj kev tiv thaiv rau demagnetization. Dhia ib lub voj voog tempering thiab koj lub nplhaib hlau nplaum yuav tus kheej demagnetize nyob rau hauv ib qho chaw sov.

Kev Siv Tshuab thiab Kev Ua Duab

Cov hlau nplaum sintered ring tawm hauv lub cub tawg tawv thiab tawg yooj yim tab sis tseem tsis tau txog qhov loj kawg. Kev siv tshuab ua tiav nrog cov cuab yeej diamond-coated lossis electrical discharge machining (EDM) vim tias cov carbide txheem yuav tsis txiav nws.

Lub cheeb tsam sab hauv (ID) thiab lub cheeb tsam sab nraud (OD) yog av raws li kev kam rau siab. Rau ib lub nplhaib kev lag luam ib txwm muaj, peb tuav ± 0.05 hli ntawm ID thiab OD. Rau cov ntawv thov precision xws li encoder rings, nws mus rau ± 0.01 hli. Kuv nco qab ib pawg uas tus neeg siv khoom tau teev tseg "tus qauv kev kam rau siab" - thiab tom qab ntawd yws tias 0.1 hli khiav tawm ua rau lawv cov kabmob kub dhau. Tam sim no peb ib txwm nug: qhov sib koom ua ke yog dab tsi, thiab qhov clearance yog dab tsi?

 

Cov Txheej Txheem Magnetization thiab Txheej Txheem

Kev Sib Nqus Axial vs Radial

Qhov no yog qhov uas lub nplhaib hlau nplaum yuav siv tau lossis tsis siv tau. Kev sib nqus tsis yog qhov chaw teeb tsa ua ntej - nws yuav tsum tau teev tseg.

- Kev sib nqus ntawm axial txhais tau tias cov ncej sab qaum teb thiab sab qab teb nyob rau ntawm ob lub ntsej muag tiaj tus. Qhov no yog ib txwm muaj rau cov khoom sib nqus, cov nplhaib tuav, thiab cov khoom sib dhos ntawm lub tso suab.
- Kev sib nqus radial txhais tau tias cov ncej nyob rau sab hauv thiab sab nraud - ib sab yog sab qaum teb, sab nraud yog sab qab teb, tab sis lub zog sib nqus tawm radially. Qhov no yog qhov koj xav tau rau brushless DC lub cev muaj zog rotors, sib nqus bearings, thiab qee cov sensors.

Kuv tau pom cov engineers xaj 5000 lub nplhaib sib nqus radially, tsuas yog paub tias lawv tsis nco qab qhia lub Hoobkas txog tus lej ntawm tus ncej (2-ncej, 4-ncej, 8-ncej). Lub Hoobkas ua lawv txhua tus 2-ncej. Cov nplhaib ua haujlwm, tsuas yog tsis yog rau daim ntawv thov. Ib txwm paub meej tias qhov kev taw qhia magnetization ntawm cov hlau nplaum nplhaib nrog daim duab kos uas qhia txog kev taw qhia ntawm tus ncej piv rau qhov keyway lossis cim.

Cov Txheej Txheem Txheej Txheem thiab Lawv Cov Teeb Meem

Neodymium nplhaib hlau nplaummuaj li ntawm 60% hlau - lawv yuav xeb hauv ob peb teev hauv huab cua noo. Kev pleev xim tsis yog ib yam khoom zoo nkauj.

- NiCuNi (nickel‑tooj liab‑nickel): Tus qauv rau kev siv hauv kev lag luam qhuav. Tawv, ua hluav taws xob, thiab nyias (10–20µm). Tab sis muaj ib qho khawb thiab xeb pib.
- Epoxy: Tuab dua (25–50µm), tsis ua hluav taws xob, thiab tiv taus ntsev tsuag thiab dej noo ntau dua. Nws qias neeg tab sis tawv. Peb siv nws rau cov sensors sab nraum zoov thiab cov ntawv thov hauv hiav txwv.
- Zinc: Pheej yig thiab siv tau ntev. Zoo rau kev sib dhos sab hauv tsev uas tsis pom dej noo.
- Passivation / phosphating: Nyias heev - tsuas yog rau cov hlau nplaum uas yuav raug nplaum lossis overmolded, vim tias cov nplaum lo zoo dua rau ntawm qhov chaw ntxhib, qhov chaw porous.

Muaj ib tug neeg siv khoom tau tso tseg siv epoxy thiab siv nickel rau ntawm cov nplhaib rau lub twj tso kua dej. Peb lub hlis tom qab, txhua lub nplhaib tau tawg ua xeb. Daim ntawv thov lav nqi ntau dua li tag nrho cov khoom. Tsis txhob kwv yees - sim ib qho qauv hauv koj qhov chaw ib puag ncig tiag tiag.

 

Kev Tswj Xyuas Zoo Hauv Kev Tsim Khoom Hlau nplaum

Kev kam rau siab thiab kev sim ntawm qhov ntev

Txhua lub nplhaib hlau nplaum raug kuaj xyuas - tab sis tsis yog txhua lub Hoobkas kuaj xyuas tib txoj kev. Peb siv kev ntsuas qhov muag tsis siv neeg rau OD, ID, thiab tuab ntawm 100% ntawm cov xaj tshwj xeeb. Lub tshuab ntsuas laser micrometer luam theej txhua qhov hauv qab ib pliag. Txhua lub nplhaib sab nraud qhov kev kam rau siab pom zoo yuav raug pov rau hauv lub thoob khib nyiab pov tseg.

Tab sis ntawm no yog lub ntxiab: kev kam rau siab siv rau txhua pebqhov ntev ntawm nws tus kheejIb lub nplhaib yuav muaj OD zoo meej, ID uas me dhau 0.03 hli, thiab tuab uas tsis yog 0.1 hli. Nws tseem yuav tsis sib dhos tau. Yog vim li ntawd koj yuav tsum qhia meej tias qhov loj me twg tseem ceeb thiab qhov twg yog qhov siv los ua piv txwv.

Kev Ntsuas Kev Ua Tau Zoo thiab Kev Ruaj Khov

Cov hlau nplaum sib nqus ntsuas nrog Helmholtz kauj lossis Gauss 'meter' ntawm ntau qhov chaw nyob ib puag ncig lub nplhaib. Rau cov nplhaib magnetized axially, peb xyuas qhov chaw nruab nrab thiab qhov chaw nyob ze ntawm ntug. Rau cov nplhaib magnetized radially, peb tig qhov chaw thiab nrhiav qhov sib xws ntawm tus ncej mus rau tus ncej - qhov sib txawv ntau dua 3% txhais tau tias qhov sib phim thaum lub sijhawm nias tsis sib xws.

Kev kuaj kub yog lwm txheej. Peb coj tsib lub nplhaib los ntawm txhua pawg, muab tso rau hauv qhov cub ntawm koj qhov kub siab tshaj plaws (piv txwv li 120 ° C) rau ob teev, txias lawv, thiab rov ntsuas qhov ntws. Yog tias lawv poob ntau dua 5% ntawm lawv cov zis thawj zaug, pawg ntawd raug tsis lees txais. Qhov ntawd yog qhov kev xeem txheem uas ntau tus neeg muag khoom "pheej yig" hla vim nws siv sijhawm thiab pov tseg cov khoom.

 

Cov Neeg Yuav Khoom Yuav Tsum Paub Tseeb Li Cas Ua Ntej Yuav Neodymium Ring Magnets

Qhov Loj thiab Kev kam rau siab

Ua kom meej. Tsis txhob sau "OD 20mm". Sau "OD 20.00 ±0.05 mm, ID 10.00 +0.02/-0.00 mm, thickness 5.00 ±0.03 mm". Qhia rau tus neeg tsim khoom seb qhov chaw twg yog qhov sib xyaw ua ke. Thiab ib txwm thov kom muaj daim ntawv qhia thawj zaug ua ntej tsim khoom tag nrho.

Cov Qib Khoom Siv

Cov qib txij li N35 txog N55 qhia koj txog qhov khoom siv zog siab tshaj plaws. Tus lej N siab dua = muaj zog dua tab sis tawg yooj yim dua thiab tsis kam ua kom sov. Lub hlau nplaum N52 ntawm qhov kub thiab txias yog qhov zoo kawg nkaus. Lub hlau nplaum N52 ntawm 70 ° C poob 12% ntawm nws lub zog. Lub N42SH ntawm tib qhov kub poob yuav luag tsis muaj dab tsi. Sib phim qib rau koj qhov kub ua haujlwm, tsis yog tus lej catalog xwb.

Kev Taw Qhia Txog Kev Sib Nqus

Qhov no tsis yog ib qho "zoo kom muaj". Nws yog ib qho parameter uas tsis raug teev tseg tshaj plaws. Muab ib tug xub rau ntawm koj daim duab. Sau "axial magnetized, north on top face". Los yog "radial 4-pole, outer diameter north". Yog tias koj tsis pom nws, thov kom tau ib qho qauv magnetized - ib daim ntawv thiab cov ntaub ntawv hlau yuav qhia koj tus qauv tam sim ntawd.

 

Kev Tsim Khoom Tshwj Xeeb rau Neodymium Ring Magnets

Txheej Txheem Tsim-rau-Luam Tawm

Yog tias koj xav tau lub nplhaib hlau nplaum uas tsis muaj nyob hauv daim ntawv teev npe - qhov piv txwv ID/OD tsis yog tus qauv, ib txheej tshwj xeeb, tus qauv ntau tus ncej - koj tab tom saibcov hlau nplaum neodymium customizedCov txheej txheem yooj yim heev: koj xa ib daim duab los yog ib qho qauv, peb tshuaj xyuas qhov kam rau siab thiab qhov ua tau ntawm cov cuab yeej, tom qab ntawd peb hais tus nqi cuab yeej (yog tias muaj) thiab tus nqi ib feem.

Cov cuab yeej siv rau cov hlau nplaum feem ntau yog ib pawg ntawm cov pwm thiab cov khoom siv sib tsoo. Xav tias yuav tsum tau them $ 500– $ 2000 ua ntej rau cov qhov loj me uas tsis yog tus qauv. Tus nqi ntawd raug suav nrog ntau dua li koj qhov kev txiav txim. Rau cov khoom loj (10,000+ daim), cov cuab yeej tsis tseem ceeb rau ib feem.

MOQ thiab Lub Sijhawm Ua Ntej

Qhov tsawg kawg nkaus rau cov hlau nplaum uas ua raws li kev cai feem ntau pib ntawm 2000–5000 daim rau kev tsim khoom raws li sintering. Qee tus neeg muag khoom yuav txo qis (500–1000 daim) siv cov hlau nplaum neodymium lossis cov khoom seem hloov kho, tab sis kev ua tau zoo tsis zoo ib yam - cov hlau nplaum sib txuas yog li 30% qaug zog dua.

Lub sijhawm ua: 4–6 lub lis piam rau cov cuab yeej thiab thawj cov qauv, tom qab ntawd lwm 4–6 lub lis piam rau kev tsim khoom thiab txheej tom qab kev pom zoo qauv. Kev txiav txim sai (tag nrho 2‑3 lub lis piam) yog ua tau tab sis xav tias yuav them 30–50% ntxiv thiab lees txais kev kam rau siab dua ntawm lub Hoobkas lub sijhawm, tsis yog koj li.

 

Cov hlau nplaum neodymium siv rau txhua yam los ntawm EV motors mus rau cov encoders kho mob mus rau cov khoom siv tuav. Cov txheej txheem tsim khoom yog laus tab sis tsis zam txim. Tau txais cov specs kom raug, sim ib qho prototype, thiab ua haujlwm nrog tus neeg muag khoom uas nug cov lus nug - tsis yog tus uas tsuas yog hais tias "yog" rau txhua tus lej koj sau cia.

Yog tias koj xav tau ob lub qhov muag ntxiv rau koj daim duab kos hlau nplaum ua ntej koj tso ib qho kev txiav txim ntau, hu rau peb. Peb tau ntsib qhov yuam kev uas yuav ua rau peb cov neeg siv khoom raug nqi rau tus lej. Qhov ntawd yog hom kev ua yuam kev uas koj tsuas ua ib zaug xwb.

Fullzen Technology | Chaw Tsim Khoom Siv Hlau nplaum Neodymium

Los ntawm cov khoom siv mus rau magnetization - ua txoj kev koj xav tau.