Product Descriptions
Rare Earth Segment Arc Magnet - Precision Curved Magnets rau High-Torque Motors
Thaum tsim cov hlau nplaum ua haujlwm ruaj khov rotor, cov duab ntawm cov hlau nplaum ncaj qha cuam tshuam rau torque ripple, rov qab EMF waveform, thiab kev ua haujlwm tag nrho. Pebtsawg ntiaj teb ntu arc hlau nplaumyog sintered neodymium-iron-boron (NdFeB) cov khoom tsim nrog cov arc geometry - ua kom zoo tshaj qhov sib txawv ntawm huab cua sib txawv rau BLDC, PMSM, thiab servo motors. Cov ntu arc no yog tsim los siv 100% nkauj xwb cov ntaub ntawv tsis tshua muaj hauv ntiaj teb (purity Ntau dua lossis sib npaug li 95%, tsis muaj cov khoom siv rov ua dua tshiab) hauv kev sib koom ua ke IATF 16949-certified facility. Muaj nyob rau hauv qib ntawm N35 txog N52, nrog rau cov kub kub (N38UH txog 180 degree, N42EH txog 200 degree), pebtsawg ntiaj teb ntu arc hlau nplaumxa cov remanence siab (txog 1.48 T) thaum tswj kev coercivity zoo heev. Txhua lub hlau nplaum yog qhov tseeb hauv av ntawm lub vojvoog sab hauv, lub vojvoog sab nraud, chord, thiab lub ntsej muag kawg siv CNC tig grinders, ua tiav qhov siab ntawm ± 0.03 hli ntawm txhua qhov loj me. Standard arc kaum muaj xws li 60 degree, 72 degree, 90 degree, thiab 120 degree, nrog kev cai kaum ntawm 30℃mus rau 150℃muaj. Ni‑Cu‑Ni triple plating (13–18 μm) muab ntau dua lossis sib npaug rau 72 teev ntsev tsuag tshuaj tiv thaiv; yeem epoxy lossis Parylene txheej txheej muaj hluav taws xob rwb thaiv tsev rau cov tshuab hluav taws xob siab. Txhua batch yog 100% flux-tested thiab muab nrog cov ntaub ntawv pov thawj thiab daim ntawv qhia qhov ntev.
Vim li cas Arc Segments txhim kho lub cev muaj zog ua haujlwm
Txo Cogging Torque
Curved profile ntawm atsawg ntiaj teb ntu arc hlau nplaumUa raws li cov rotor nto, ua rau ntau qhov kev hloov pauv ntawm sinusoidal flux thaum lub rotor tig. Qhov no txo qis cogging torque, uas ua rau kom ntsiag to, smoother lub cev muaj zog ua haujlwm.
Siab Torque Density
Los ntawm kev tsom cov sib nqus flux ntawm qhov sib txawv ntawm huab cua, cov ntu arc tso cai rau lub cev luv luv lossis cov kab me me rau tib lub zog tawm. Qhov no yog qhov tseem ceeb rau kev siv qhov hnyav xws li drones thiab tsheb fais fab.
Consistent Assembly
Nrog nruj chord qhov siab thiab lub vojvoog tolerances, ntu ntawm tib yam haum seamlessly ntawm lub rotor core. Qhov no txo qhov sib txawv ntawm qhov sib txawv thiab ua kom muaj qhov sib nqus sib nqus sib npaug ntawm cov ncej.
Technical Specifications – Rare Earth Arc Segment Magnets
Cov lus hauv qab no teev cov qib sib xws thiab cov qauv geometric tsis zoo rautsawg ntiaj teb ntu arc hlau nplaum. Kev cai tsim muaj nyob rau ntawm koj daim duab rotor.
| Qib | Nr (T) | Hcj (kA / m) | BHmax (kJ/m³) | Max kub (degree) | Tej kev siv |
|---|---|---|---|---|---|
| N42SH | 1.30-1.32 | Ntau dua lossis sib npaug rau 1590 (Ntau dua lossis sib npaug rau 20 kOe) | 318-334 (40-42 MOG) | 150 | Muaj servos, spindle drives |
| N40 UA | 1.25-1.29 | Ntau dua lossis sib npaug rau 1990 (Ntau dua lossis sib npaug rau 25 kOe) | 302-326 (38-41 MOG) | 180 | EV traction motors (secondary) |
| N38 EH | 1.22-1.26 | Ntau dua lossis sib npaug rau 2388 (Ntau dua lossis sib npaug rau 30 kOe) | 287-310 (36-39 MWG) | 200 | High-performance automotive, hybrid systems |
| N45 (tus qauv) | 1.33-1.37 | Ntau dua lossis sib npaug rau 955 (Ntau dua lossis sib npaug rau 12 kOe) | 342-358 (43-45 HNUB) | 80 | Ntxuam, twj, khoom siv hauv tsev |
* Txheem arc geometry: puab vojvoog 20-200 hli, sab vojvoog=puab vojvoog + thickness (3-20 hli), ntev 10-200 hli, arc kaum 30℃-150 degree. Kev cai cuab yeej muaj.
Sib nqus kev taw qhia
Txheej / Plating
High -Kev tsim khoom
Nrog precision sib tsoo thiab txiav, kam rau ua ntawm +/- 0.05mm tuaj yeem ua tiav thaum lub sijhawm tsim khoom.
Sib Nqus Qib Parameters
Full-Process Quality - Los ntawm Alloy mus rau Arc tiav
Peb vertically integrated chaw tswj txhua kauj ruam ntawmtsawg ntiaj teb ntu arc hlau nplaumntau lawm. Peb pib nrog lub tshuab nqus tsev induction melting ntawm nkauj xwb neodymium, hlau, boron, ntxiv rau dysprosium los yog terbium rau high-temperature qib. Cov hlau yog dav hlau-milled rau 3-5 μm hmoov, tom qab ntawd nias rau hauv ntu tuag nyob rau hauv ib qho chaw sib nqus kom ua tiav radial orientation. Sintering thiab ob-theem cua sov kev kho mob optimize lub microstructure rau siab tshaj plaws coercivity thiab remanence. Tom qab sintering, ntu yog hauv av rau txhua qhov chaw tseem ceeb uas siv CNC teb grinders nrog rau kev ntsuas ntsuas. Ni-Cu-Ni plating yog siv rau hauv cov kab hluav taws xob uas siv hluav taws xob nrog lub sijhawm saib xyuas XRF tuab. Kev tshuaj xyuas zaum kawg suav nrog 100% sib nqus flux ntsuas (Helmholtz coil), tag nrho qhov ntsuas qhov ntsuas (CMM lossis optical comparator), thiab coating adhesion testing. Cov tshuaj ntsev-spray yog ua raws li ASTM B117. Tag nrho cov khoom xa tuaj suav nrog cov ntawv pov thawj cov ntaub ntawv pov thawj nrog kev taug qab mus rau cov khoom siv raw. Peb yog IATF 16949 thiab ISO 9001 tau ntawv pov thawj, ua tau raws li kev tsim tsheb thiab kev lag luam OEM.
Ntim & Logistics - Npaj rau cov kab ntau lawm
Txhua ntu arc tau muab tso rau hauv lub hnab ntim ua npuas ncauj tshwj xeeb hauv cov tais los tiv thaiv zoo li qub txhawm rau tiv thaiv ntug chipping. Cov tais tau ntim thiab ntim rau hauv cov thawv ntim khoom siv ntxiv nrog cov khoom siv desiccant. Lub sij hawm ua cov txheej txheem: ntu ntu 10-12 hnub; kev cai cuab yeej 15-20 hnub tom qab kos duab pom zoo. Cov qauv dawb muaj rau cov haujlwm tsim nyog. Peb txhawb nqa tsuas yog-hauv-lub sijhawm xa khoom thiab xa khoom xa tuaj rau cov ntim siab OEMs.
FAQ
Q: Dab tsi yog ob hom tseem ceeb ntawm lub ntiaj teb tsis tshua muaj ntu arc hlau nplaum, thiab lawv txawv li cas?
A: NdFeB (piv txwv li, N35-N52) muaj kev ua haujlwm siab (1.2-1.48 T) tab sis qis max khiav hauj lwm kub (80-150 degree). SmCo (piv txwv li, Sm2Co17) muaj qis remanence (0.96-1.15 T) tab sis zoo heev thermal stability (250-350 degree) thiab corrosion kuj. Xaiv SmCo rau qhov kub kub lossis qhov kub ntxhov.
Q:Vim li cas radial orientation nyuaj dua rau qhov tsis tshua muaj lub ntiaj teb ntu arc hlau nplaum dua li kev taw qhia sib luag?
A: Radial orientation xav tau cov kab flux kom nkhaus ntawm sab hauv mus rau sab nrauv arc. Thaum nias, xav tau ib qho tshwj xeeb radial teb fixture, uas txo cov ntsuab compact zog. Kev pheej hmoo tawg yog siab heev. Parallel orientation yog qhov yooj yim dua thiab pheej yig dua, txawm hais tias nws tsim cov khoom siv hluav taws xob tsawg dua nyob rau hauv qee qhov qauv tsim.
Q: Lub arc ntu zoo li cas cuam tshuam qhov kev pheej hmoo ntawm irreversible demagnetization nyob rau hauv lub ntiaj teb tsis tshua muaj hlau nplaum?
A: Nyias sab hauv vojvoog seem (ze ntawm tus ID) muaj kev cuam tshuam ntau dua los ntawm stator tam sim no. Rau cov ntaub ntawv tsis tshua muaj hauv ntiaj teb nrog qis Hcj (piv txwv li, N40H), sab hauv lub taub hau tuaj yeem demagnetize ua ntej. Kev nce arc thickness lossis siv qib Hcj siab dua (piv txwv li, N40SH) tiv thaiv qhov no yam tsis hloov qhov ntev.
Q: Koj ua li cas ntsuas lub kaum sab xis ntawm lub ntiaj teb tsis tshua muaj hlau nplaum, thiab vim li cas nws tseem ceeb?
A: Siv CMM lossis optical sib piv. Kev kam rau ua: ± 0.5℃rau ± 1 degree. Tighter tolerances nce nqi. Arc lub kaum sab xis ua rau tsis sib npaug sib nqus rub thiab lub zog ripple hauv BLDC motors. Rau cov khub sib tw, txheeb cov hlau nplaum rau hauv cov thawv nrog Tsawg dua lossis sib npaug ntawm 0.2℃kev hloov pauv kom tsis txhob ua haujlwm tawg.
Q: Can rare earth segment arc magnets be used in high‑speed spindles (>50,000 rpm)?
A: Yog lawm, tab sis eddy tam sim no poob ua hnyav vim tsis tshua muaj zog (~ 1.5 µΩ·m rau NdFeB). Siv segmented (laminated) hlau nplaum los yog lub tes tsho conductive nrog rwb thaiv tsev txheej. SmCo muaj zog dua me ntsis (~ 5 µΩ·m) thiab poob qis. Tshaj 80 m / s nto nrawm, xav txog kev sib koom ua ke tsis tshua muaj ntiaj teb lossis Halbach arrays.