NdFeB Magnets yog dab tsi
Raws li cov txheej txheem ntau lawm,Neodymium hlau nplaumtuaj yeem muab faib uaSintered Neodymium CovthiabBonded Neodymium. Bonded Neodymium muaj hlau nplaum nyob rau hauv tag nrho cov lus qhia thiab yog corrosion resistant; Sintered Neodymium yog nquag rau corrosion thiab yuav tsum tautxheejntawm nws qhov chaw, feem ntau suav nrog zinc plating, npib tsib xee plating, ib puag ncig tus phooj ywg zinc plating, ib puag ncig tus phooj ywg nickel plating, npib tsib xee tooj liab npib tsib xee plating, ib puag ncig tus phooj ywg npib tsib xee tooj liab npib tsib xee plating, thiab lwm yam.
Classification ntawm Neodymium Magnets
Nyob ntawm txoj kev tsim khoom siv, Neodymium Magnet cov ntaub ntawv tuaj yeem muab faib uaSintered Neodymium CovthiabBonded Neodymium. Bonded Neodymium muaj hlau nplaum nyob rau hauv tag nrho cov lus qhia thiab yog corrosion resistant; Sintered Neodymium yog nquag rau corrosion thiab yuav tsum tautxheejntawm nws qhov chaw, feem ntau suav nrog zinc plating, npib tsib xee plating, ib puag ncig tus phooj ywg zinc plating, ib puag ncig tus phooj ywg nickel plating, npib tsib xee tooj liab npib tsib xee plating, ib puag ncig tus phooj ywg npib tsib xee tooj liab npib tsib xee plating, thiab lwm yam.daim ntawv thovnyob rau hauv cov khoom tam sim no uas xav tau cov hlau nplaum ruaj khov, xws li cov tshuab hluav taws xob hauv cov cuab yeej cordless, hard disk drives, thiab cov hlau nplaum sib nqus, lawv tau coj qhov chaw ntawm lwm hom hlau nplaum.
Qhov feem ntau hom Rare-Earth Magnet yog aNeodymium hlau nplaum, feem ntau hu ua aNdFeB, NIB, or Neo magnet. Neodymium, Hlau, thiab Boron tau muab sib xyaw ua ke los tsim Cov Hlau nplaum ruaj khov Nd2Fe14B tetragonal crystalline qauv. Neodymium Magnets yog hom muaj zog tshaj plaws ntawm Permanent Magnet tam sim no nyob rau hauv kev ua lag luam. Lawv tau sib cais tsim nyob rau hauv 1984 los ntawm General Motors thiab Sumitomo Special Metals.
Neodymium hlau nplaumyog cov khoom siv tawv tawv uas tsis tshua muaj qhov ntom ntom tab sis cov khoom siv kho tshuab siab, thiab nws cov nqi tsim khoom qis dua lwm yam Rare Earth Permanent Magnet Materials. Tam sim no, raws li kev sib piv kab rov tav ntawm kev sib koom ua lag luam nrog peb tiam Rare Earth Permanent Magnet Materials, Neodymium Magnets muaj cov khoom lag luam siab tshaj plaws thiab kev tsim khoom txhua xyoo, tsuas yog qis dua pheej yig dua.Ferrite hlau nplaum.
Sintered NdFeB hlau nplaummuaj cov khoom sib nqus zoo tshaj plaws thiab siv rau hauv ntau qhov chaw, suav nrog lub qhov rooj latches, motors, generators, thiab cov khoom siv hnyav.
Bonded compressed hlau nplaummuaj zog tshaj txhaj molded hlau nplaum.
Txhaj Yas NdFeB hlau nplaumyog cov khoom siv tshiab tiam tshiab uas muaj cov hmoov sib nqus thiab cov yas ruaj khov, nrog cov khoom sib nqus thiab cov yas zoo tshaj plaws, nrog rau qhov raug siab thiab kev ntxhov siab.
Sintered Neodymium Magnets
Sintered Neodymium Magnetyog ib tug tam sim no muaj zog hlau nplaum, uas tsis tsuas yog muaj cov yam ntxwv zoo xws li siab remanence, siab coercivity, siab magnetic zog khoom, thiab high-kev ua tau zoo tus nqi piv tab sis kuj yog ib qho yooj yim rau txheej txheem rau ntau yam duab thiab ntau thiab tsawg, tshwj xeeb tshaj yog haum rau high-power thiab high magnetic teb teb, nrog rau ntau yam miniaturized thiab lub teeb yuag hloov khoom.
Sintered Neodymium Magnets feem ntau yog siv rau hauv tsheb (hluav taws xob tsav, hluav taws xob fais fab kauj, sensors, thiab lwm yam), lub zog tsim hluav taws xob, cov ntaub ntawv kev lag luam (hard disk drives, optical disk drives), cov neeg siv khoom siv hluav taws xob (cov xov tooj ntawm tes, digital koob yees duab), tsev neeg Cov cuab yeej siv hluav taws xob sib txawv (qhov hloov pauv cua txias, tub yees, thiab tshuab ntxhua khaub ncaws), elevator linear motors, nuclear magnetic resonance imaging machine, thiab lwm yam.Daim ntawv thovnyob rau hauv cov cheeb tsam xws li cov kev pabcuam ntse tau nce.
Bonded Neodymium Magnets
Bonded Neodymium Magnet yog ib hom khoom siv hlau nplaum ruaj khov uas ua los ntawm kev sib txuas sai sai quenched nanocrystalline neodymium hlau boron magnetic hmoov nrog siab polymer (xws li thermosetting epoxy resin, thermoplastic engineering plastics, thiab lwm yam).Bonded Neodymium Compressed MagnetsthiabBonded Neodymium Txhaj Magnets. Nws muaj qhov raug siab heev, zoo sib nqus sib nqus, thiab sib xws, thiab tuaj yeem ua rau cov duab nyuaj uas nyuaj rau kev ua tiav ntawm sintered neodymium hlau nplaum thiab yooj yim rau kev koom ua ke nrog lwm cov hlau lossis yas rau kev sib sau. Bonded Neodymium Magnets kuj muaj ntau txoj kev sib nqus, tsis tshua muaj kev poob tam sim no, thiab muaj zog corrosion kuj.
Bonded Neodymium Magnets yog siv rau hauv cov ntaub ntawv thev naus laus zis hauv kev lag luam xws li khoos phis tawj hard drives thiab optical disc tsav spindle motors, tshuab luam ntawv / tshuab luam ntawv, thiab cov hlau nplaum sib nqus, nrog rau kev tsav tsheb thiab tswj cov khoom siv rau cov khoom siv hluav taws xob sib txawv thiab cov khoom siv hluav taws xob. Lawv daim ntawv thov hauv micro thiab tshwj xeeb motors thiab sensors ntawm lub zog tshiab tsheb yog maj mam dhau los ua kev lag luam tseem ceeb.
Kev piav qhia ntawm Lub Zog
Neodymium yog cov hlau antiferromagnetic uas nthuav tawm cov yam ntxwv sib nqus thaum nws ntshiab, tab sis tsuas yog nyob rau ntawm qhov kub ntawm 19 K (254.2 ° C; 425.5 ° F). Neodymium tebchaw nrog ferromagnetic hloov pauv hlau zoo li hlau, muaj Curie kub ntau tshaj li chav tsev kub, yog siv los tsim neodymium hlau nplaum.
Neodymium hlau nplaum 'lub zog yog kev sib txuas ntawm ntau yam. Qhov tseem ceeb tshaj plaws yog qhov tsis tshua muaj siab uniaxial magnetocrystalline anisotropy ntawm tetragonal Nd2Fe14B siv lead ua qauv (HA 7 T - magnetic teb zog H hauv units ntawm A / m tiv thaiv lub sijhawm sib nqus hauv Am2). Qhov no qhia tau hais tias ib tug crystal ntawm cov khoom magnetizes nyiam nyob rau hauv ib tug tej yam siv lead ua axis tab sis pom nws nyuaj heev rau magnetize nyob rau hauv lwm yam lus qhia. Cov hlau nplaum neodymium hlau nplaum, zoo li lwm cov hlau nplaum, yog ua los ntawm microcrystalline nplej uas yog thaum lub sij hawm tsim khoom raws li cov hlau nplaum muaj zog xws li lawv cov hlau nplaum txhua qhov taw qhia tib yam. Lub compound muaj ib tug heev coercivity, los yog tsis kam mus rau demagnetization, vim yog siv lead ua lattice tsis kam hloov nws cov kev taw qhia ntawm magnetism.
Vim tias nws muaj plaub yam tsis sib xws hauv nws cov qauv hluav taws xob piv rau (qhov nruab nrab) peb hauv cov hlau, neodymium atom muaj peev xwm muaj lub sijhawm tseem ceeb sib nqus dipole. Lub unpaired electrons nyob rau hauv ib tug hlau nplaum uas yog raws li nyob rau hauv thiaj li hais tias lawv cov spin yog tig mus rau tib txoj kev taw qhia tsim lub magnetic teb. Qhov no ua rau muaj zog saturation magnetization rau Nd2Fe14B kev sib xyaw ua ke (Js 1.6 T lossis 16 kG) thiab cov hlau nplaum seem ntawm 1.3 teslas. Raws li qhov tshwm sim, lub sijhawm sib nqus no muaj peev xwm khaws cov khoom sib nqus ntawm lub zog loj (BHmax 512 kJ / m3 lossis 64 MGOe), vim tias lub zog siab tshaj plaws yog proportional rau Js2.
Qhov no sib nqus zog tus nqi yog nyob ib ncig ntawm 18 lub sij hawm los ntawm ntim thiab 12 lub sij hawm los ntawm huab hwm coj loj tshaj "tsis tu ncua"ferrite hlau nplaum. Samarium cobalt (SmCo), thawj cov khoom lag luam muaj tsawg-lub ntiaj teb hlau nplaum, muaj qib qis ntawm qhov sib nqus lub zog zoo li NdFeB alloys. Neodymium hlau nplaum 'cov yam ntxwv sib nqus yog tiag tiag cuam tshuam los ntawm alloy lub microstructure, kev tsim khoom, thiab muaj pes tsawg leeg.
Hlau atoms thiab ib qho kev sib xyaw neodymium-boron muaj nyob rau hauv lwm txheej hauv cov qauv siv lead ua Nd2Fe14B. Cov diamagnetic boron atoms txhawb kev sib koom ua ke los ntawm covalent bonds muaj zog tab sis tsis ncaj qha rau cov hlau nplaum. Cov hlau nplaum neodymium tsis tshua kim dua li cov hlau nplaum samarium-cobalt vim qhov sib piv tsis tshua muaj lub ntiaj teb concentration (12% los ntawm ntim, 26.7% los ntawm huab hwm coj), nrog rau cov txheeb ze muaj neodymium thiab hlau piv rau samarium thiab cobalt.
Cov khoom
Qib:
Cov khoom siv hluav taws xob siab tshaj plaws ntawm cov hlau nplaum neodymium-uas sib haum rau cov khoom sib nqus flux hauv ib chav tsev ntim-yog siv los faib lawv. Cov hlau nplaum muaj zog yog qhia los ntawm cov nqi siab dua. Muaj kev lees paub thoob ntiaj teb categorization rau sintered NdFeB hlau nplaum. Lawv nyob rau hauv tus nqi ntawm 28 mus rau 52. Neodymium, los yog sintered NdFeB hlau nplaum, yog denoted los ntawm thawj N ua ntej qhov tseem ceeb. Cov txiaj ntsig tau ua raws li cov ntawv uas qhia txog kev sib koom ua ke thiab qhov siab tshaj plaws ntawm kev ua haujlwm kub, uas muaj kev sib raug zoo nrog Curie qhov kub thiab txias los ntawm lub neej ntawd (txog 80 ° C lossis 176 ° F) mus rau TH (230 ° C lossis 446 ° F) .
Qib ntawm sintered NdFeB hlau nplaum:
N30-N56, N30H-N52M, N30H-N52H, N30SH-N52SH, N28UH-N45UH, N28EH-N42EH, N30AH-N38AH
Ntawm cov yam ntxwv tseem ceeb siv los sib piv cov hlau nplaum ruaj khov yog:
Remanence(Br),uas quantifies lub magnetic teb lub zog.
Kev quab yuam(Hci),demagnetization tsis kam ntawm cov khoom.
Cov khoom siv hluav taws xob siab tshaj plaws(BHmax),tus nqi loj tshaj ntawm magnetic flux density (B) zaug
magnetic teb lub zog, uas ntsuas qhov ceev ntawm magnetic zog (H).
Curie kub (TC), lub ntsiab lus uas ib yam khoom ceases mus magnetic.
Neodymium hlau nplaum ua tau zoo tshaj lwm hom hlau nplaum nyob rau hauv cov nqe lus ntawm remanence, coercivity, thiab zog khoom, tab sis nquag muaj qis Curie kub. Terbium thiab dysprosium yog ob qho tshwj xeeb neodymium hlau nplaum alloys uas tau tsim nrog Curie kub dua thiab siab dua kub siab. Neodymium hlau nplaum 'magnetic kev ua tau zoo yog qhov sib txawv ntawm lwm hom hlau nplaum ruaj khov hauv cov lus hauv qab no.
| Magnet | Br(T) | Hcj(kA / m) | BHmaxkJ/m3 | TC | |
| (℃) | (℉) | ||||
| Nd2Fe14B, sintered | 1.0-1.4 tsi | 750-2000 Nws | 200-440 Nws | 310-400 Nws | 590-752 : kuv |
| Nd2Fe14B, sib koom ua ke | 0.6-0.7 hli | 600-1200 Nws | 60-100 | 310-400 Nws | 590-752 : kuv |
| SmCo5, sintered | 0.8-1.1 | 600-2000 Nws | 120-200 Nws | 7 20 | 1328 ib |
| Sm (Co, Fe, Cu, Zr) 7 sintered | 0.9-1.15 Nws | 450-1300 Nws | 150-240 : kuv | 800 | 1472 ib |
| AlNiCi, sintered | 0.6-1.4 hli | 275 | 10-88 : kuv | 700-860 : kuv | 1292-1580 Ib |
| Sr-Ferrite, sintered | 0.2-0.78 Nws | 100-300 | 10-40 | 450 | 842 ib |
Teeb meem Corrosion
Cov ciam teb ntawm cov hlau nplaum sintered yog tshwj xeeb tshaj yog raug rau corrosion nyob rau hauv sintered Nd2Fe14B. Qhov zoo ntawm corrosion tuaj yeem ua rau muaj kev puas tsuaj loj, xws li qhov sib txawv ntawm cov txheej txheem saum npoo los yog cov hlau nplaum tawg rau hauv cov hmoov me me sib nqus.
Ntau cov khoom lag luam daws qhov kev pheej hmoo no los ntawm kev suav nrog kev tiv thaiv kev tiv thaiv kom tsis txhob cuam tshuam rau ib puag ncig. Cov platings feem ntau yog npib tsib xee, npib tsib xee-tooj liab-nickel, thiab zinc, thaum lwm yam hlau kuj tuaj yeem siv tau, xws li polymer thiab lacquer tiv thaiv.txheej txheej.
Kev kub ntxhov
Neodymium muaj qhov tsis zoo coefficient, uas txhais tau hais tias thaum kub nce, ob qho tib si coercivity thiab qhov siab tshaj plaws sib nqus zog ceev (BHmax) poob. Ntawm qhov kub thiab txias, neodymium-hlau-boron hlau nplaum muaj qhov sib zog siab; Txawm li cas los xij, thaum qhov kub nce siab tshaj 100 ° C (212 ° F), kev sib koom ua ke sai sai kom txog thaum nws ncav cuag Curie kub, uas nyob ib puag ncig 320 ° C lossis 608 ° F. Qhov kev txo qis hauv kev coercivity txwv cov hlau nplaum qhov ua tau zoo hauv cov ntawv thov kub xws li cua turbines, hybrid motors, thiab lwm yam. Txhawm rau tiv thaiv qhov kev ua tau zoo los ntawm kev poob vim qhov kub thiab txias, terbium (Tb) lossis dysprosium (Dy) ntxiv, nce tus nqi ntawm cov khoom siv. hlau nplaum.
Daim ntawv thov
Vim tias nws lub zog siab dua tso cai rau kev siv me me, sib zog hlau nplaum rau ib qho muabdaim ntawv thov, neodymium hlau nplaum tau supplanted alnico thiab ferrite hlau nplaum nyob rau hauv ntau qhov kev siv suav tsis txheeb hauv cov cuab yeej siv niaj hnub uas yuav tsum muaj cov hlau nplaum ruaj khov. Nov yog ob peb yam piv txwv:
Lub taub hau actuators rau lub computer hard disks
Mechanical e-luam yeeb firing keyboards
Locks rau qhov rooj
mobile hais lus & autofocus actuators
Sib nqus couplings thiab bearings
Hluav taws xob motors & Actuators
Hluav taws xob fais fab
Cov cuab yeej tsis muaj zog
Servomotors& Synchronous motors
Motors rau nqa thiab compressors
Spindle thiab stepper motors
Hybrid thiab hluav taws xob tsheb tsav motors
Hluav taws xob generators rau cua turbines (nrog mus tas li hlau nplaum excitation)
Retail media case decouplers
Cov hlau nplaum neodymium muaj zog yog siv rau hauv cov txheej txheem kev lag luam los ntes cov neeg txawv teb chaws thiab tiv thaiv cov khoom thiab cov txheej txheem.
Lub zog muaj zog ntawm Neodymium Magnets tau txhawb nqa kev siv tshiab xws li cov hniav nyiaj hniav kub sib nqus, cov menyuam yaus lub tsev sib nqus (thiab lwm yam neodymiumcov khoom ua si hlau nplaum), thiab raws li ib feem ntawm kev kaw mechanism ntawm kev ua si nawv parachute khoom siv tam sim no. Lawv yog cov hlau tseem ceeb hauv cov khoom ua si uas nrov npe hu ua "Buckyballs" thiab "Buckycubes," txawm li cas los xij Qee lub khw hauv Tebchaws Meskas tau xaiv tsis muag lawv vim kev txhawj xeeb txog kev nyab xeeb ntawm menyuam yaus, thiab lawv tau txwv hauv Canada. vim tib yam.
Nrog rau qhov tshwm sim ntawm qhib magnetic resonance imaging (MRI) scanners siv los saib lub cev nyob rau hauv radiology departments raws li ib tug lwm txoj rau superconducting hlau nplaum, lub zog thiab magnetic teb homogeneity ntawm neodymium hlau nplaum kuj tau qhib tshiab possibilities nyob rau hauv kev kho mob kev lag luam.
Neodymium Magnets yog siv los kho tus kab mob gastroesophageal reflux raws li kev phais implanted anti-reflux system, uas yog ib pawg ntawm cov hlau nplaum surgically implanted nyob ib ncig ntawm lub esophageal sphincter (GERD). Lawv kuj tau raug cog rau hauv cov ntiv tes kom muaj kev nkag siab zoo ntawm thaj chaw sib nqus, txawm tias qhov no yog kev sim ua haujlwm uas tsuas yog biohackers thiab grinders paub txog.
Vim Li Cas Xaiv Peb
Nrog ntau tshaj kaum xyoo ntawm kev paub,Honsen Sib Nqustau zoo ib yam nyob rau hauv kev tsim thiab kev lag luam ntawm Permanent Magnets thiab Magnetic Assemblies. Peb cov kab ntau lawm suav nrog ntau yam txheej txheem tseem ceeb xws li machining, sib dhos, vuam, thiab txhaj tshuaj molding, uas tso cai rau peb muab peb cov neeg siv khoom nrog ONE-STOP-SOLUTION. Cov peev txheej no tso cai rau peb los tsim cov khoom lag luam zoo tshaj plaws uas ua tau raws li cov qauv zoo tshaj plaws.
At Honsen Sib Nqus, peb txaus siab rau peb cov neeg siv khoom-centric mus kom ze. Peb lub tswv yim yog los ntawm kev muab cov kev xav tau thiab kev txaus siab ntawm peb cov neeg siv khoom siab dua txhua yam. Qhov kev cog lus no ua kom ntseeg tau tias peb tsis yog tsuas yog xa cov khoom tshwj xeeb xwb tab sis kuj muab kev pabcuam zoo thoob plaws tag nrho cov neeg siv khoom. Ntxiv mus, peb lub koob npe nrov tshwj xeeb nthuav dav dhau ciam teb. Los ntawm kev muab tus nqi tsim nyog thiab tswj xyuas cov khoom zoo, peb tau txais txiaj ntsig zoo hauv Tebchaws Europe, Amelikas, Asia, thiab lwm lub tebchaws. Cov lus pom zoo thiab kev ntseeg siab peb tau txais los ntawm peb cov neeg siv khoom ntxiv dag zog rau peb txoj kev sawv hauv kev lag luam.
Peb Cov Kab Ntau Lawm
Quality Assurance
Peb pab neeg zoo & Cov neeg siv khoom
Peb ntim cov khoom li cas
