Sintered NdFeB (Neodymium Iron Boron) hlau nplaum yog ib hom hlau nplaum ruaj khov ua los ntawm cov hlau nplaum ntawm neodymium, hlau, thiab boron. Cov hlau nplaum no paub txog lawv lub zog sib nqus siab, ua haujlwm rau demagnetization, thiab tus nqi qis dua piv rau lwm cov hlau nplaum ua haujlwm siab.
Vim Li Cas Xaiv Peb
Kev Txawj Ntse Thiab Kev Paub
Peb pab pawg kws tshaj lij muaj ntau xyoo dhau los hauv kev xa cov kev pabcuam zoo rau peb cov neeg siv khoom. Peb ntiav tsuas yog cov kws tshaj lij tshaj lij uas muaj cov ntaub ntawv pov thawj ntawm kev xa cov txiaj ntsig tshwj xeeb.
Tus nqi sib tw
Peb muab cov nqi sib tw rau peb cov kev pabcuam yam tsis muaj kev cuam tshuam rau qhov zoo. Peb cov nqi yog pob tshab, thiab peb tsis ntseeg hauv cov nqi zais lossis cov nqi.
Cov neeg siv khoom txaus siab
Peb tau cog lus tias yuav xa cov kev pabcuam zoo tshaj plaws uas tshaj peb cov neeg tau txais kev cia siab. Peb siv zog los xyuas kom meej tias peb cov neeg siv khoom txaus siab rau peb cov kev pabcuam thiab ua haujlwm ze nrog lawv kom ntseeg tau tias lawv tau ntsib.
One-Stop Service
Peb cog lus tias yuav muab koj cov lus teb ceev tshaj plaws, tus nqi zoo tshaj, qhov zoo tshaj plaws, thiab ua tiav cov kev pab cuam tom qab muag.
Cia peb tham txog neodymium hlau boron mus tas li hlau nplaum. NdFeB luv luv.
Alloys raws li peb lub ntsiab lus no yog siv los tsim cov hlau nplaum uas muaj zog tshaj plaws nyob rau hauv kev lag luam.
Dab tsi ua rau neodymium-based hlau nplaum tshwj xeeb?
NdFeB hlau nplaum tsim cov hlau nplaum muaj zog heev thiab muaj zog heev rau demagnetisation. Los ntawm kev ua tib zoo hloov kho ntawm cov muaj pes tsawg leeg, siv ntau yam khoom siv ntxiv, cov hlau nplaum muaj peev xwm ua haujlwm ntawm qhov kub siab tshaj 200 degrees celsius tuaj yeem tsim.
Lawv nyob qhov twg?
Neodymium, hlau thiab boron muaj nyob rau hauv lub ntiaj teb crust. Neodymium yog lub npe hu ua lub ntiaj teb tsis tshua muaj, uas tsis tshua muaj tsawg, tab sis cov khoom ua rau nws nyuaj rau kev ua haujlwm. Nws tuaj yeem pom muaj txiaj ntsig zoo hauv, piv txwv li, Tuam Tshoj, Russia, Tebchaws Meskas, Brazil, Is Nrias teb thiab Australia.
Neodymium yog ib qho ntawm 17 cov ntsiab lus tshuaj nyob rau hauv lub rooj sib tham uas tau muab cais ua cov ntsiab lus tsis tshua muaj hauv ntiaj teb.
NdFeB hlau nplaum ua li cas?
Cov ntaub ntawv raw yog rhuab rau hauv qhov cub induction melted thiab cam khwb cia kom muab cov hlau. Thaum txias, cov hlau yog crushed thiab milled los tsim ib coarse granular hmoov. Cov hmoov yog ces dav hlau-milled mus rau ib tug zoo me me thiab nias nyob rau hauv ib tug sib nqus teb rau orientate cov hais. Tom qab nias rau hauv lawv daim ntawv xav tau, cov compacts yog sintered rau tag nrho ntom coated (yog xav tau) thiab ces thaum kawg magnetised.
Lawv siv rau dab tsi?
NdFeB hlau nplaum yog siv rau ntau yam kev siv xws li kev ua haujlwm siab motors, sib nqus sib nqus, sib nqus resonance imaging, sensors, thiab hais lus nrov. Lawv tau dhau los ua neeg nyiam nyob rau ob peb xyoos dhau los hauv kev hloov mus rau lub neej yav tom ntej. Cua turbines, hluav taws xob tsheb thiab hluav taws xob tsheb kauj vab tag nrho tso siab rau cov hlau nplaum no.
Koj puas yuav tsum tau ceev faj thaum tuav NdFeB hlau nplaum?
Yog lawm. Cov hlau nplaum no muaj zog heev, koj yuav tsis xav kom koj cov ntiv tes tso rau hauv nruab nrab ntawm lawv. Koj kuj yuav tsum tau kom lawv nyob deb ntawm credit cards, watches, lub plawv pacemakers thiab TVs vim lawv tuaj yeem ua rau cov hlau nplaum ntawm qee yam khoom puas.
Yuav Ua Li Cas Neodymium Ndfeb Magnets tau ua
Txoj kev tsim khoom ntawm Neodymium NdFeB Magnets (Neodymium Iron Boron Magnets) yog raws li hauv qab no.
Cov hlau Neodymium yog thawj zaug sib cais los ntawm lub ntiaj teb tsis tshua muaj oxides nyob rau hauv lub cub tawg electrolytic. Cov ntsiab lus "Rare Earth" yog lanthanoids (tseem hu ua lanthanides), thiab lub sij hawm tshwm sim los ntawm cov tsis tshua muaj oxide minerals siv los cais cov ntsiab lus. Txawm hais tias lo lus "Rare Earth" yog siv, nws tsis txhais hais tias cov tshuaj tsis tshua muaj. Cov ntsiab lus tsis tshua muaj ntiaj teb muaj ntau, piv txwv li Neodymium keeb muaj ntau dua li kub. Lub Neodymium, Hlau thiab Boron yog ntsuas thiab muab tso rau hauv lub tshuab nqus tsev induction rauv los tsim cov hlau. Lwm cov ntsiab lus ntxiv, raws li qhov xav tau, rau cov qib tshwj xeeb, xws li Cobalt, Copper, Gadolinium thiab Dysprosium (xws li pab tiv thaiv corrosion). Qhov sib tov yog melted vim yog high-frequency cua sov thiab melting.
Hauv cov ntsiab lus yooj yim, "Neo" alloy yog zoo li lub ncuav mog qab zib sib tov, nrog rau txhua lub Hoobkas daim ntawv qhia rau txhua qib. Lub resultant melted alloy yog ces txias los ua ingots ntawm alloy. Cov hlau ingots yog tom qab ntawd tawg los ntawm hydrogen decrepitation (HD) los yog hydrogenation disproportionation desorption thiab recombination (HDDR), thiab dav hlau milled rau hauv ib tug nitrogen thiab argon cua mus rau ib tug micron-loj hmoov (kwv yees li 3 microns los yog tsawg dua nyob rau hauv loj). Cov hmoov Neodymium no ces muab tso rau hauv lub hopper kom tso cai nias ntawm cov hlau nplaum.
Txoj Kev Nias Cov Hmoov
Muaj peb txoj hauv kev tseem ceeb ntawm kev nias cov hmoov - axial thiab transverse nias. Tuag nias yuav tsum tau siv cov cuab yeej los ua kom cov kab noj hniav me ntsis loj dua qhov tsim nyog cov duab (vim sintering ua rau shrinkage ntawm cov hlau nplaum). Cov hmoov Neodymium nkag mus rau hauv qhov tuag kab noj hniav los ntawm lub hopper thiab ces compacted nyob rau hauv lub xub ntiag ntawm ib tug externally thov magnetic teb. Lub teb sab nraud yog siv thaum uas tig mus rau lub compacting quab yuam (qhov no axial nias tsis yog li ntawd tus qauv) los yog perpendicular mus rau lub compaction kev taw qhia (hu ua transverse nias). Transverse nias muab cov khoom sib nqus ntau dua rau Neodymium NdFeB Magnets.
Txoj kev thib peb ntawm kev nias yog isostatic nias. NdFeB hmoov yog muab tso rau hauv cov pwm roj hmab thiab rau hauv lub thawv ntim dej loj, ua kom cov kua dej ntau ntxiv. Ib zaug ntxiv, ib qho chaw magnetising sab nraud yog tam sim no, tab sis NdFeB hmoov yog compacted los ntawm txhua sab. Isostatic nias muab qhov ua tau zoo tshaj plaws sib nqus ua haujlwm rau Neodymium Iron Boron. Cov txheej txheem ua haujlwm sib txawv nyob ntawm qib ntawm "Neo" xav tau thiab txiav txim siab los ntawm cov chaw tsim khoom.
Magnetising Field
Lub solenoid coil teem rau ntawm ob sab ntawm cov hmoov compacting ua rau sab nraud magnetising teb. Cov khoom sib nqus ntawm NdFeB hmoov ua ke nrog daim ntawv thov magnetising - qhov ntau homogenous daim ntawv thov teb, ntau homogenous qhov sib nqus ntawm cov hlau nplaum Neodymium. Raws li qhov tuag nias lub Neodymium hmoov, cov kev taw qhia ntawm magnetisation yog xauv rau hauv qhov chaw - Neodymium hlau nplaum tau muab ib tug nyiam kev taw qhia ntawm magnetization. Nws yog hu ua anisotropic (yog hais tias tsis muaj sab nraud teb tau thov, nws yuav ua tau kom hlau nplaum hlau nplaum nyob rau hauv ib qho kev taw qhia, uas yog hu ua isotropic, tab sis qhov sib nqus kev ua tau zoo yuav qis dua li ntawm cov hlau nplaum anisotropic thiab feem ntau yog nyob rau hauv cov hlau nplaum sib nqus. ).
Lub ntiaj teb tsis tshua muaj hlau nplaum nthuav tawm uniaxial magnetocrystalline anisotropy, piv txwv li lawv muaj cov qauv siv lead ua tshwj xeeb sib txuas nrog cov axis yooj yim ntawm magnetisation. Nyob rau hauv cov ntaub ntawv ntawm Nd2Fe14B, qhov yooj yim axis ntawm magnetisation yog c-axis ntawm complex tetragonal qauv. Nyob rau hauv lub xub ntiag ntawm sab nraud magnetising teb, nws dlhos raws lub c-axis, ua muaj peev xwm ua tau tag nrho magnetised rau saturation nrog siab coercivity.
Txoj Kev Sintering
Ua ntej nias NdFeB hlau nplaum raug tso tawm, nws tau muab cov mem tes demagnetising kom nws tsis muaj hlau nplaum. Cov hlau nplaum compacted yog hu ua 'ntsuab' hlau nplaum - nws yooj yim rau kev quab yuam kom tawg sib nrug, thiab nws qhov kev sib nqus tsis zoo. Lub 'ntsuab' Neodymium hlau nplaum yog sintered los muab nws cov khoom sib nqus zaum kawg.
Cov txheej txheem sintering yog ua tib zoo saib xyuas (qhov kub thiab lub sij hawm profile yuav tsum tau siv) thiab tshwm sim nyob rau hauv ib qho inert (oxygen-dawb) cua (xws li argon). Yog tias muaj cov pa oxygen, cov txiaj ntsig oxides rhuav tshem cov hlau nplaum ua haujlwm ntawm NdFeB. Cov txheej txheem sintering kuj ua rau shrinkage ntawm cov hlau nplaum raws li cov hmoov fuses ua ke. Lub shrinkage muab cov hlau nplaum ze rau qhov xav tau, tab sis qhov shrinkage feem ntau tsis sib xws (xws li lub nplhaib yuav ntsws los ua ib qho oval).
Thaum kawg ntawm cov txheej txheem sintering, qhov kawg ceev quench yog thov kom txias cov hlau nplaum sai. Qhov no txo qis qhov tsis xav tau ntawm 'theem' (hauv cov ntsiab lus yooj yim, qhov sib txawv ntawm cov hlau tsis zoo nrog cov khoom sib nqus) uas tshwm sim hauv qab qhov kub ntawm sintering. Lub quench ceev maximizes magnetic kev ua tau zoo ntawm NdFeB. Vim tias cov txheej txheem sintering ua rau qhov tsis sib xws, cov duab ntawm Neodymium hlau nplaum yuav tsis ua rau qhov loj me.
Tolerances thiab Dimensions
Cov theem tom ntej yog tshuab cov hlau nplaum kom haum rau qhov yuav tsum tau ua. Vim tias kev siv tshuab xav tau, cov hlau nplaum Neodymium tau ua kom loj dua me ntsis thaum nias, xws li cov kab loj dua sab nraud, me me hauv kab thiab siab dua rau lub nplhaib hlau nplaum. Standard magnet dimensional tolerances yog +/-0.1mm, txawm hais tias +/-0.05mm yog ua tiav ntawm tus nqi ntxiv. Qhov muaj peev xwm ntawm kev ua kom nruj dua yog nyob ntawm cov duab thiab qhov loj ntawm cov hlau nplaum thiab tej zaum yuav ua tsis tau.
Nco ntsoov, Neodymium hlau nplaum yog nruj. Txiav qhov hauv NdFeB nrog tus qauv laum lossis carbide taub yuav ua rau lub laum me ntsis. Pob zeb diamond-txiav cov cuab yeej (CNC pob zeb diamond sib tsoo lub log, pob zeb diamond laum, thiab lwm yam) yuav tsum tau siv lub tshuab txiav hlau (EDM). NdFeB swarf hmoov tsim thaum lub sij hawm machining yuav tsum tau txias los ntawm cov kua. Txwv tsis pub, nws yuav spontaneously combust. Rau Neodymium thaiv cov hlau nplaum, tej zaum yuav muaj kev txuag nyiaj hauv kev siv cov hlau nplaum loj dua uas ua los ntawm isostatic nias thiab txiav lawv mus rau hauv me me Neodymium blocks ntawm qhov xav tau loj. Qhov no yog ua kom ceev thiab loj ntau lawm (qhov twg txaus txiav thiab sib tsoo tshuab tam sim no) thiab hu ua "slice thiab tsuav". Thaum qhov kawg qhov ntev rau cov hlau nplaum tau ntsib los ntawm machining, Neodymium hlau nplaum tau muab cov txheej tiv thaiv. Qhov no feem ntau yog Ni-Cu-Ni txheej.
Txheej
Cov hlau nplaum yuav tsum tau muab ntxuav kom tshem tawm cov swarf / hmoov los ntawm machining. Nws yog ces qhuav kom huv si ua ntej yuav plated. Nws yog ib qho tseem ceeb uas lub ziab kom huv si. Txwv tsis pub, dej yog xauv rau hauv cov hlau nplaum Neodymium plated, thiab cov hlau nplaum yuav corrode los ntawm sab hauv tawm. Cov plating yog nyias heev, xws li 15-35 microns rau Ni-Cu-Ni (1 micron yog 1/1000mm).
Cov txheej txheem tam sim no muaj raws li nram no: - Nickel-Copper-Nickel (Ni-Cu-Ni) [standard], Epoxy, Zinc (Zn), Kub (Au), Silver (Ag), Tin (Sn), Titanium (Ti), Titanium Nitride (TiN), Parylene C, Everlube, Chrome, PTFE ("Teflon"; dawb, dub, grey, silvery), Ni-Cu-Ni plus Epoxy, Ni-Cu-Ni ntxiv roj hmab, Zn ntxiv Roj hmab, Ni-Cu-Ni ntxiv rau Parylene C, Ni-Cu-Ni ntxiv rau PTFE, Tin (Sn) ntxiv rau Parylene C, Zinc Chromate, Phosphate Passivation thiab Uncoated (piv txwv li liab qab - tsis pom zoo tab sis qee zaum xav tau los ntawm tus neeg siv khoom).
Lwm cov txheej txheem tuaj yeem ua tau. Nws tsis pom zoo kom siv cov hlau nplaum tsis muaj txheej tiv thaiv.
Siab dua Hci Neodymium NdFeB hlau nplaum tau hais tias zoo dua ntawm kev tiv thaiv corrosion, tab sis qhov no tsis tau lees tias kev siv nyab xeeb thaum tsis siv. Yog tias tsim nyog, phaj cov hlau nplaum tom qab sib dhos (qhov no yog vim tias cov kua nplaum yuav ua raws li lub plating ntau dua li NdFeB hlau nplaum, yog li yog tias plating tsis ua haujlwm, cov hlau nplaum yuav dawb). Tshem tawm cov plating kom cia cov kua nplaum zoo dua tuaj yeem ua tau. Txawm li cas los xij, kev tiv thaiv corrosion hauv Neodymium hlau nplaum tuaj yeem raug cuam tshuam loj heev thaum lub sijhawm txheej txheem tshwj tsis yog tias muaj kev saib xyuas zoo thaum lub sijhawm sib dhos (cov tes tsho tiv thaiv yuav tsim nyog los txiav txim siab kom cov hlau nplaum nyob hauv qhov chaw, xws li lub tes tsho carbon fiber rau rotors).
Sintered NdFeB Magnet Composition
Sintered NdFeB hlau nplaum muaj peb yam tseem ceeb: lub ntiaj teb tsis tshua muaj neodymium, hlau thiab boron. Nd atoms, coupling nrog ferromagnetic Fe atoms, pab cov hlau nplaum kom tau siab remanence Br thiab siab tshaj plaws zog khoom (BH) max, uas ua rau nws txawv tshaj plaw piv nrog rau lwm yam hlau nplaum mus tas li. Txawm hais tias B cov ntsiab lus tsuas yog nyob ib ncig ntawm 1 wt% hauv cov hlau nplaum, nws yog qhov tsim nyog rau theem intermetallic stability, yog li cov hlau nplaum muaj cov khoom sib nqus ruaj khov.
Hauv kev lag luam sintered NdFeB hlau nplaum, Nd lub ntsiab lus feem ntau yog hloov pauv los ntawm lwm yam tsis tshua muaj ntiaj teb xws li praseodymium, dysprosium thiab terbium, thiab lwm yam. Vim hais tias Nd thiab Pr ntsiab feem ntau coexist nyob rau hauv ore thiab ob lub ntsiab muaj xws li lub cev thiab tshuaj zog, yog li nws yog ntau dua. kev lag luam los tsim PrNd alloy es tsis txhob ntshiab Nd hlau los ntawm ore thiab siv PrNd alloy ua raw khoom ntawm hlau nplaum. Raws li Nd / Pr piv nyob rau hauv ore yog nyob ib ncig ntawm 4: 1, yog li nws kuj yog nyob ib ncig ntawm 4: 1 nyob rau hauv feem ntau coj mus muag hlau nplaum. Dy thiab / lossis Tb lub caij hloov pauv rau Nd lub caij tuaj yeem ua rau muaj kev sib koom ua ke ntawm Hcj lossis Hci vim lawv qhov siab dua magnetocrystalline anisotropy teb HA. Tag nrho cov ntsiab lus ntawm Dy thiab Tb cov ntsiab lus hauv cov hlau nplaum feem ntau yog tsawg dua 10 wt% vim yog tus nqi siab thiab Br poob. Feem ntau, tag nrho cov ntsiab lus tsis tshua muaj hauv ntiaj teb yog nyob ib ncig ntawm 30 wt% hauv cov hlau nplaum, thiab nws cov nqi khoom siv rau ib ncig ntawm 70% ntawm cov hlau nplaum los yog siab dua nyob ntawm cov nqi qis hauv ntiaj teb thiab cov ntsiab lus.
Fe keeb tuaj yeem hloov tau los ntawm qee qhov Co lub ntsiab lus los txhim kho cov hlau nplaum thermal stability thiab corrosion kuj. Tsis tas li ntawd, ib qho me me ntawm Al thiab Cu cov ntsiab lus tuaj yeem ntxiv los txhim kho cov hlau nplaum microstructure homogeneity kom tau Hcj siab dua thiab (BH) max.
Nyob rau hauv kev pom ntawm lub tshuab ntsuas hluav taws xob tshuab hluav taws xob (SEM) daim duab, cov cheeb tsam grey tsaus yog Nd2Fe14B nplej, qhov nruab nrab cov nplej loj yog nyob ib ncig ntawm 6-8 μm. Qhov sib zog grey thaj chaw nyob ib puag ncig cov nplej yog Ni-nplua nuj lis ciam teb, qhov nruab nrab ntawm cov ciam teb tuab ntawm cov nplej uas nyob ib sab yog nyob ib ncig ntawm 10 nm raws li qhia hauv daim duab kis tau tus mob electron microscope (TEM).
http://www.advancedmagnets.com/wp-content/uploads/2018/12/sintered-ndfeb-magnet-microstructure-SEM-TEM.webp
Qhov tseeb, cov txheej txheem sintering ntawm sintered NdFeB hlau nplaum yog cov txheej txheem ua kua theem sintering. Cov theem ciam teb, nrog qis melting point tshaj li theem ntawm cov nplej, yuav yaj mus rau hauv cov kua theem thaum lub sij hawm sintering txheej txheem thiab tom qab annealing txheej txheem, nws yog ib qho tseem ceeb rau densify cov hlau nplaum thiab txhim kho nws microstructure homogeneity los txhim kho nws cov khoom sib nqus.
Lub zog hlau nplaum ntawm sintered neodymium hlau boron cov hlau nplaum ruaj khov tuaj yeem sib txawv nyob ntawm seb muaj pes tsawg leeg, cov duab, thiab qhov loj ntawm cov hlau nplaum. Txawm li cas los xij, cov hlau nplaum no tau paub txog lawv qhov tshwj xeeb siab magnetic teb lub zog. Lawv tuaj yeem tsim cov hlau nplaum uas muaj zog dua li lwm cov khoom sib nqus, xws li ferrite lossis alnico hlau nplaum.
Lub zog hlau nplaum ntawm sintered neodymium hlau boron cov hlau nplaum ruaj khov yog ntsuas hauv cov ntsuas tesla (T) lossis gauss (G). Cov txiaj ntsig raug rau sintered neodymium hlau boron cov hlau nplaum ruaj khov tuaj yeem nyob ntawm 1.0 T txog 1.5 T, nyob ntawm cov ntawv thov tshwj xeeb thiab cov kev xav tau.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias lub zog sib nqus ntawm cov hlau nplaum tuaj yeem cuam tshuam los ntawm qhov kub thiab txias, demagnetization, thiab lwm yam. Tsis tas li ntawd, lub zog magnetic teb yuav txawv nyob ntawm qhov kev taw qhia thiab qhov chaw ntawm cov hlau nplaum. Yog tias koj xav tau cov khoom sib nqus hlau nplaum tshwj xeeb rau qhov tshwj xeeb sintered neodymium hlau boron cov hlau nplaum ruaj khov, nws raug nquahu kom sab laj nrog cov chaw tsim khoom tshwj xeeb lossis ua kev ntsuas siv lub ntsuas magnetic los yog lwm yam khoom tsim nyog.
Sintered neodymium hlau boron (NdFeB) cov hlau nplaum ruaj khov yog siv rau hauv ntau yam kev kho mob vim lawv cov khoom siv hlau nplaum siab thiab lub zog. Cov hlau nplaum no yog tsim los ntawm neodymium, hlau, thiab boron, thiab lawv tau tsim los ntawm cov txheej txheem hu ua sintering, uas suav nrog kev cog lus thiab cua sov cov hmoov sib tov nyob rau hauv qhov kub thiab txias los tsim cov hlau nplaum.
Kev siv cov hlau nplaum NdFeB hauv cov tshuaj siv ntau qhov chaw, suav nrog.
Sib nqus Resonance Imaging (MRI):MRI cov tshuab siv cov hlau nplaum muaj zog superconducting los tsim cov duab ntxaws ntawm sab hauv ntawm tib neeg lub cev. Txawm hais tias thawj cov hlau nplaum hauv MRIs yog superconducting thiab tsis sintered NdFeB, NdFeB hlau nplaum tuaj yeem pom nyob rau hauv qee yam ntawm MRI system, xws li gradient coils.
Particle Accelerators:Hauv kev kho kab mob rau kev kho mob qog noj ntshav, NdFeB hlau nplaum yog siv rau hauv cyclotrons thiab synchrotrons kom ceev cov khoom mus rau lub zog siab ua ntej coj lawv ntawm cov qog.
Linear Motors thiab Actuators:Cov no yog siv rau hauv cov cuab yeej phais thiab cov tshuab neeg hlau rau kev tswj xyuas meej thaum cov kev phais me me. NdFeB hlau nplaum yog qhov zoo dua rau lawv qhov loj me thiab qhov tso zis ntau zog hauv ib cheeb tsam.
Sib nqus Stimulation:Transcranial magnetic stimulation (TMS) siv cov hlau nplaum muaj zog uas tsim los ntawm NdFeB hlau nplaum los txhawb cov paj hlwb hauv hlwb thiab siv los kho qee yam kev puas hlwb xws li kev nyuaj siab.
Immobilization Devices:Cov hlau nplaum tuaj yeem siv rau hauv cov hlua khi thiab txhawb nqa kom tsis txhob muaj ceg lossis pob qij txha thaum kho tom qab raug mob lossis phais.
Separation thiab sorting:NdFeB hlau nplaum yog siv rau hauv cov khoom siv kho mob rau kev sib cais cov ntshav los yog cais cov hlwb raws li lawv cov khoom sib nqus.
Thaum siv rau hauv daim ntawv thov kev kho mob, tsim thiab tsim cov hlau nplaum NdFeB yuav tsum ua raws li cov qauv nruj thiab kev nyab xeeb kom ntseeg tau tias muaj kev sib raug zoo nrog cov chaw kho mob rhiab heev thiab kev nyab xeeb ntawm tus neeg mob. Tsis tas li ntawd, biocompatibility thiab muaj peev xwm toxicity ntawm cov ntaub ntawv siv nyob rau hauv cov hlau nplaum yuav tsum tau ua tib zoo txiav txim siab, tshwj xeeb tshaj yog tias lawv nkag mus rau hauv cov ntaub so ntswg los yog kua.
Yog lawm, sintered neodymium hlau boron mus tas li hlau nplaum tuaj yeem ua rau hauv qhov ntau thiab tsawg thiab cov duab. Cov txheej txheem tsim khoom ntawm cov hlau nplaum no suav nrog cov hmoov hlau metallurgy, qhov twg cov hmoov hlau nplaum yog nias rau hauv pwm thiab ces sintered los ua cov hlau nplaum zaum kawg. Cov txheej txheem no tso cai rau kev tsim cov hlau nplaum hauv ntau cov duab thiab ntau thiab tsawg, suav nrog cylindrical, rectangular, square, thiab kev cai geometries.
Thaum lub sij hawm tsim cov txheej txheem, cov hmoov sib nqus yog tov nrog ib tug binding tus neeg sawv cev los ua ib tug muab tshuaj txhuam, uas yog ces nias rau hauv pwm. Cov pwm tuaj yeem tsim los tsim cov hlau nplaum sib txawv thiab qhov ntau thiab tsawg, nyob ntawm qhov tshwj xeeb ntawm daim ntawv thov. Tom qab nias, cov hlau nplaum yog sintered nyob rau hauv ib tug high-kub qhov cub kom khi cov hmoov hais ua ke thiab tsim ib tug khoom sib nqus qauv.
Lub peev xwm los tsim sintered neodymium hlau boron mus tas li hlau nplaum rau hauv qhov ntau thiab tsawg thiab cov duab ua rau lawv muaj ntau yam thiab haum rau ntau yam kev siv. Custom-shaped hlau nplaum tuaj yeem tsim kom haum rau cov cuab yeej tshwj xeeb lossis cov khoom sib dhos, muab kev sib nqus siab tshaj plaws thiab kev ua haujlwm zoo. Yog tias koj muaj qhov loj me thiab cov duab uas yuav tsum tau ua rau sintered neodymium hlau boron cov hlau nplaum ruaj khov, nws yog qhov zoo tshaj plaws los tham nrog cov chaw tsim khoom lossis tus neeg muag khoom uas tuaj yeem muab cov kev cai hlau nplaum raws li koj xav tau.
Sintered NdFeB yog hais txog ib hom hlau nplaum ruaj khov ua los ntawm kev sib xyaw ntawm neodymium, hlau, thiab boron hmoov, uas tau muab sib xyaw ua ke thiab tom qab ntawd sintered (rhuab kom txog thaum lawv fuse ua ke) los tsim cov hlau nplaum. Sintered NdFeB hlau nplaum paub txog lawv lub zog sib nqus siab heev, uas ua rau lawv muaj txiaj ntsig hauv ntau yam kev siv, suav nrog lub khoos phis tawj nyuaj, cua turbines, hluav taws xob motors, thiab hais lus.
Tom ntej no yog cov lus qhia txog kev npaj ntawm sintered NdFeB hlau nplaum.
Raw khoom pretreatment.
Sib tsoo, sib tov, thiab ua ntej kev sib txuas ntawm cov khoom siv raw xws li neodymium, hlau, thiab boron. Thaum lub sij hawm crushing txheej txheem, lub tshuab cua tshuab feem ntau yog siv los tsoo cov ntaub ntawv raw mus rau qhov nruab nrab particle loj nyob rau hauv thaj tsam ntawm 3-5 μm. Nyob rau hauv cov txheej txheem sib tov, txhua yam los yog kua-theem sib tov tuaj yeem siv los faib cov khoom sib npaug. Cov txheej txheem ua ntej synthesis yog tsuas yog los txhim kho cov khoom sib nqus thiab txo oxidation thaum lub sij hawm tom qab sintering.
Nias thiab sib sau.
Cov khoom siv raw khoom ua ntej yog nias rau hauv cov duab uas xav tau ntawm ntsuab compact siv isostatic lossis uniaxial nias txoj kev. Organic binders thiab lubricants tuaj yeem muab ntxiv los txhim kho kev ua haujlwm.
Debinding thiab sintering.
Lub ntsuab compact yog debinded kom tshem tawm cov organic binders thiab lubricants. Debinding txoj kev muaj xws li thermal debinding, tshuaj debinding, thiab nqus debinding. Cov txheej txheem sintering feem ntau yog ua nyob rau hauv lub tshuab nqus tsev los yog tiv thaiv cua sintering rauv, nrog rau qhov kub thiab txias ntawm feem ntau 1080-1120 degree thiab lub sij hawm sintering ntawm 1-3 teev.
Magnetic field alignment thiab annealing.
Cov hlau nplaum sintered yog nyob rau hauv ib qho chaw sib nqus los txhim kho nws cov khoom sib nqus. Thaum lub sij hawm kev sib raug zoo, cov hlau nplaum yog rhuab mus txog 850 degree nyob rau hauv ib tug high magnetic teb (txog 30-50 kOe), thiab ces txias rau chav tsev kub nyob rau hauv lub magnetic teb. Annealing feem ntau yog tshem tawm kev ntxhov siab thiab qhov tsis xws luag tsim thaum lub sij hawm sintering thiab feem ntau yog ua nyob rau hauv lub tshuab nqus tsev los yog tiv thaiv cua sov, nrog rau qhov kub thiab txias ntawm 450-550 degree thiab annealing lub sij hawm ntawm 2-10 teev. Machining, txheej, thiab magnetization.
Sintered NdFeB
Cov hlau nplaum yog machined los ntawm kev txiav thiab sib tsoo kom ua tiav qhov xav tau loj thiab cov duab. Txheej feem ntau yog ua los ntawm cov txheej txheem xws li npib tsib xee plating, zinc plating, lossis kub plating los txhim kho cov hlau nplaum tiv thaiv corrosion. Thaum kawg, cov hlau nplaum yog magnetized nyob rau hauv lub siab magnetic teb kom ua tiav qhov xav tau sib nqus ncej faib.
Peb lub Hoobkas
Peb cov hlau nplaum feem ntau yog siv rau lub cev muaj zog thiab cov tshuab hluav taws xob, xws li Servo motors, Linear motors, Wind power generators, Automotive drive motors, Compressor motors, Audio equipment, Home theatre, Instrumentation, Medical equipment, Automotive sensors, Wind turbines and magnetic tools etc.
FAQ
Q: Sintered Neodymium Iron Boron (NdFeB) Magnet yog dab tsi?
Q: Dab tsi yog qhov zoo ntawm Sintered NdFeB Magnets?
Q: Dab tsi yog Daim Ntawv Thov ntawm Sintered NdFeB Magnets?
Q: Dab tsi yog qhov ua haujlwm siab tshaj plaws rau Sintered NdFeB Magnets?
Q: Kuv Yuav Ua Li Cas thiab Khaws Sintered NdFeB Magnets?
Q: Puas yog Sintered NdFeB Magnets Environmentally Friendly?
Q: Dab tsi yuav tsum tau ceev faj txog kev nyab xeeb thaum ua haujlwm nrog Sintered NdFeB hlau nplaum?
Q: Cov hlau nplaum neodymium puas tuaj yeem rov ua dua?
Q: Kuv yuav tsum ntxuav cov hlau nplaum neodymium li cas?
Q: 3 txoj kev ua cov hlau nplaum yog dab tsi?
Cov hlau nplaum yog tsim los ntawm kev nthuav tawm cov hlau ferromagnetic xws li hlau thiab npib tsib xee rau cov hlau nplaum. Muaj peb txoj hauv kev ua cov hlau nplaum: (1) Ib qho kov txoj kev (2) Ob txoj kev kov (3) Siv hluav taws xob tam sim no.
Q: Yuav ua li cas cov hlau nplaum yuav ua artificially?
Q: Koj tuaj yeem qhia tau li cas yog tias qee yam tau txhaj tshuaj molded?
Q: Puas yog kev txhaj tshuaj molding kim?
Q: Yuav ua li cas ua ib lub hlau nplaum tsis muaj hluav taws xob?
Q: Txoj kev zoo tshaj plaws ntawm kev ua hlau nplaum yog dab tsi?
Q: Koj puas tuaj yeem ua cov hlau nplaum yam tsis siv cov khoom sib nqus?
Q: Dab tsi yog qhov muaj zog hlau nplaum?
Q: Cov hlau nplaum puas tuaj yeem nqa lub roj teeb?
Q: Dab tsi yog qhov zoo tshaj plaws hlau siv los ua hlau nplaum?
Q: Koj ua li cas thiaj li ua hluav taws xob nrog cov hlau nplaum?
Tsiv cov hlau nplaum nyob ib ncig ntawm ib lub kauj ntawm cov hlau, los yog txav ib lub kauj ntawm cov hlau nyob ib ncig ntawm cov hlau nplaum, thawb cov electrons hauv cov hlau thiab tsim cov hluav taws xob tam sim no. Cov tshuab hluav taws xob tseem ceeb hloov lub zog kinetic (lub zog ntawm kev txav) mus rau hauv hluav taws xob.
Cim npe nrov: Tuam Tshoj sintered neodymium hlau boron mus tas li hlau nplaum manufacturers, lwm tus neeg, Hoobkas
