4 Cov ntaub ntawv dab tsi yog NdFeB tsim los ntawm?
Cov ntaub ntawv tseem ceeb ntawm lub ntiaj teb tsis tshua muaj NdFeB cov hlau nplaum ruaj khov ntawm Nantian Magnet yog cov hlau tsis tshua muaj hauv ntiaj teb neodymium (Nd) 32 feem pua, hlau hlau (Fe) 64 feem pua thiab cov hlau tsis muaj hlau boron (B) 1 feem pua (ib qho me me ntawm dysprosium ( Dy), terbium (Tb), cobalt (Co), niobium (Nb), gallium (Ga), txhuas (Al), tooj liab (Cu) thiab lwm yam khoom). NdFeB ternary ruaj khov hlau nplaum cov ntaub ntawv yog raws li Nd2Fe14B compound, thiab nws cov muaj pes tsawg leeg yuav tsum zoo ib yam li cov mis molecular ntawm cov compound Nd2Fe14B. Txawm li cas los xij, thaum muaj pes tsawg leeg ntawm Nd2Fe14B yog proportioned kiag li, qhov sib nqus kev ua tau zoo ntawm cov hlau nplaum yog tsawg heev, lossis txawm tias tsis yog-magnetic. Tsuas yog thaum cov ntsiab lus ntawm neodymium thiab boron nyob rau hauv qhov tseeb hlau nplaum yog ntau tshaj li cov ntsiab lus ntawm neodymium thiab boron nyob rau hauv lub Nd2Fe14B compound, zoo dua mus tas li hlau nplaum zog yuav tau.
5 Cov khoom sib nqus ntawm NdFeB tuaj yeem kav ntev npaum li cas?
NdFeB hlau nplaum muaj coercivity siab heev, thiab yuav tsis demagnetize thiab magnetically hloov nyob rau hauv tej yam ntuj tso ib puag ncig thiab dav hlau magnetic teb tej yam kev mob. Piv txwv tias ib puag ncig tsim nyog, qhov poob ntawm cov khoom sib nqus ntawm cov hlau nplaum yuav tsis tseem ceeb txawm tias tom qab siv ntev. Yog li ntawd, hauv kev siv tswv yim, peb feem ntau tsis quav ntsej qhov cuam tshuam ntawm lub sijhawm ntawm cov khoom sib nqus.
6 Hais txog txoj kev taw qhia
Kev taw qhia kev taw qhia: Cov kev taw qhia uas cov hlau nplaum anisotropic tuaj yeem tau txais cov khoom sib nqus zoo tshaj plaws yog hu ua kev taw qhia ntawm cov hlau nplaum. Cov hlau nplaum tau muab faib ua 1 cov hlau nplaum isotropic: cov hlau nplaum uas muaj cov khoom sib nqus zoo ib yam nyob rau hauv ib qho kev taw qhia 2 anisotropic hlau nplaum: cov khoom sib nqus sib txawv hauv cov lus qhia sib txawv; thiab muaj ib qho kev taw qhia, kev taw qhia kev taw qhia, uas tau txais cov khoom sib nqus siab tshaj plaws. hlau nplaum. Sintered NdFeB cov hlau nplaum ruaj khov yog cov hlau nplaum anisotropic, yog li kev taw qhia kev taw qhia (kev taw qhia magnetization) yuav tsum tau txiav txim siab ua ntej ntau lawm.
7 Yam cuam tshuam rau lub zog sib nqus ntawm NdFeB hlau nplaum?
Ambient kub, txij li thaum sintered NdFeB yog heev rhiab heev rau kev ua hauj lwm kub, lub instantaneous kub siab tshaj thiab tas mus li qhov siab tshaj plaws kub ntawm ib puag ncig tej zaum yuav ua rau txawv degrees ntawm demagnetization ntawm cov hlau nplaum, nrog rau reversible thiab irreversible, recoverable thiab unrecoverable.
8 Dab tsi yog qhov ua haujlwm kub ntawm NdFeB hlau nplaum?
Qhov kev txwv kub ntawm NdFeB hlau nplaum tau ua rau kev txhim kho cov qib ntawm cov hlau nplaum sib txawv kom haum rau qhov kev ua haujlwm kub sib txawv. Thov xa mus rau peb cov ntawv teev kev ua tau zoo los sib piv cov kev ua haujlwm kub ntawm ntau qib ntawm cov hlau nplaum. Qhov siab tshaj plaws ua haujlwm kub yuav tsum tau lees paub ua ntej xaiv NdFeB hlau nplaum.
9 Yuav tiv thaiv cov hlau nplaum li cas?
Feem ntau, peb siv cov hlau zoo tib yam los tiv thaiv cov hlau nplaum. Sib nqus shielding yuav tsum muaj cov khoom permeability siab, thiab cov khoom uas ua tau raws li qhov yuav tsum tau muaj yog cov hlau-nickel alloy, uas muaj cov permeability siab. Thaum lub magnetic teb uas yuav tsum tau shielded muaj zog heev, tsuas yog siv ib txheej ntawm shielding khoom yuav ua tsis tau raws li qhov yuav tsum tau shielding, los yog saturation yuav tshwm sim. Nyob rau lub sijhawm no, ib txoj hauv kev yog ua kom cov thickness ntawm cov khoom. Tab sis ib txoj hauv kev zoo dua yog siv cov ntaub thaiv npog sib xyaw ua ke, tso ib daim ntaub thaiv rau hauv ib qho nrog rau qhov sib txawv ntawm huab cua. Cov huab cua sib txawv tuaj yeem sau nrog cov khoom siv tsis yog permeable rau kev txhawb nqa, xws li txhuas. Kev tiv thaiv kev ua tau zoo ntawm cov ntaub thaiv npog ua ke yog ntau dua li ntawm ib daim ntaub thaiv npog, yog li cov ntaub thaiv npog tuaj yeem ua rau cov hlau nplaum sib nqus mus rau qhov qis heev.
10 Kev ceev faj rau kev khaws cia thiab kev thauj mus los ntawm cov hlau nplaum yog dab tsi?
Thaum khaws cov hlau nplaum, ua kom chav tsev tsis muaj cua thiab qhuav, txwv tsis pub qhov chaw ntub dej yuav yooj yim ua rau cov hlau nplaum xeb. Lub ambient kub yuav tsum tsis txhob tshaj qhov siab tshaj plaws ua hauj lwm kub ntawm cov hlau nplaum; unplated khoom yuav tsum oiled kom tsis txhob xeb; Cov khoom siv hlau nplaum yuav tsum muab khaws cia deb ntawm cov khoom sib nqus, daim npav sib nqus, daim nplaum nplaum, lub computer saib, watches thiab lwm yam khoom rhiab rau magnetic teb. Cov khoom ntawm cov hlau nplaum kuj yog nkig. Thaum lub sij hawm kev thauj mus los thiab electroplating (txheej txheej), nws yuav tsum tau xyuas kom meej tias cov hlau nplaum tsis raug cuam tshuam loj heev thaum lub sij hawm installation. Yog tias txoj kev tsis raug, nws yuav ua rau muaj kev puas tsuaj thiab tawg; cov hlau nplaum yuav tsum tau shielded thaum thauj nyob rau hauv ib lub xeev magnetized, tshwj xeeb tshaj yog nyob rau hauv aviation Transportation yuav tsum tau shielded tag nrho.
11 Dab tsi yog kev ceev faj rau kev ua haujlwm ntawm cov hlau nplaum?
Cov hlau nplaum yuav tsum xyuas kom meej tias qhov chaw ua haujlwm huv si thaum siv, txwv tsis pub nws yooj yim rau nqus cov hlau nplaum me me xws li cov ntaub ntawv hlau thiab cuam tshuam rau kev siv; Cov yam ntxwv ntawm cov khoom siv NdFeB yog ib qho nyuaj thiab nkig, thiab nws lub zog nqus tuaj yeem ncav cuag ntau dua 600 npaug ntawm nws tus kheej qhov hnyav, uas yooj yim heev rau kev sib tsoo kev puas tsuaj. Hauv cov txheej txheem ua haujlwm, yuav tsum tau saib xyuas kom tsis txhob muaj kev sib tsoo thiab kev puas tsuaj rau qhov me me, thiab kev nyab xeeb ntawm tus kheej thiab kev tiv thaiv yuav tsum tau them nyiaj ntau rau qhov loj.
12 Dab tsi yog vim li cas rau kev tev ntawm cov txheej thiab ua rau cov pob txha xeb?
Rau cov khoom tsim nyog electroplating, nyob rau hauv ib txwm muaj xwm txheej, cov txheej txheej electroplating yuav tsum tsis txhob muaj xeb. Thaum nws ntub dhau lawm, huab cua ncig tsis zoo, thiab qhov kub thiab txias hloov pauv zoo heev, txawm tias cov khoom uas dhau los ntawm kev ntsuas ntsev ntsev tau khaws cia rau hauv ib puag ncig hnyav rau lub sijhawm ntev, thiab cov kab xeb tuaj yeem tshwm sim. Thaum cov khoom siv electroplating khaws cia rau hauv ib puag ncig hnyav, lub hauv paus txheej yuav rov ua dua nrog cov dej condensed, uas yuav txo qis kev sib txuas ntawm lub hauv paus txheej thiab txheej txheej plating. Cov khoom siv electroplating yuav tsum tsis txhob muab tso rau hauv qhov chaw uas muaj cov av noo siab ntev, tab sis yuav tsum muab tso rau hauv qhov chaw txias thiab qhuav.
13 Yuav ua li cas ntsuas qib ntawm magnetic kev ua tau zoo?
Muaj peb yam tseem ceeb: remanence Br (Residual Induction), chav tsev Gauss, tom qab tshem tawm cov magnetic teb los ntawm lub xeev saturation, cov seem sib nqus flux ceev sawv cev rau lub zog magnetic teb uas cov hlau nplaum tuaj yeem muab rau lub ntiaj teb sab nraud; coercive force Hc (Coercive Force), unit Oersteds yog muab cov hlau nplaum tso rau hauv qhov chaw sib nqus sab nraud. Thaum sab nraud magnetic teb nce mus rau ib qho kev muaj zog, cov hlau nplaum ntawm cov hlau nplaum yuav ploj mus. Lub peev xwm los tiv thaiv sab nraud magnetic teb yog hu ua coercive force, uas sawv cev rau ib qho kev ntsuas ntawm lub peev xwm los tiv thaiv demagnetization; magnetic zog Cov khoom BHmax, chav tsev Gauss-Oersteds, yog lub magnetic teb zog generated los ntawm cov chav tsev ntim ntawm cov khoom, thiab yog ib tug ntau npaum li cas lub zog ntawm ib tug hlau nplaum yuav khaws cia.
14 Feem ntau siv cov cuab yeej sib nqus ntsuas
Feem ntau siv cov khoom siv sib nqus ntsuas yog: flux meter, Tesla meter (tseem hu ua Gauss meter), ntsuas ntsuas magnetic. Lub fluxmeter yog siv los ntsuas qhov sib nqus induction flux, lub teslameter yog siv los ntsuas qhov chaw sib nqus ntawm lub zog los yog huab cua sib nqus sib nqus lub zog, thiab lub magnetometer yog siv los ntsuas cov khoom sib nqus. Ua ntej siv tag nrho cov twj paj nruag, nyeem phau ntawv kom zoo, preheat raws li qhov yuav tsum tau ntawm phau ntawv, thiab ua haujlwm raws li qhov xav tau ntawm phau ntawv tom qab preheating.
15 NdFeB ua li cas?
Nantian Magnet's sintered NdFeB cov hlau nplaum ruaj khov yog cov hlau nplaum ruaj khov uas tsim los ntawm cov txheej txheem hmoov metallurgy. Cov txheej txheem tseem ceeb yog: formula, smelting, milling, forming orientation, sintering, machining, electroplating thiab lwm yam. Ntawm lawv, kev tswj cov ntsiab lus ntawm cov pa oxygen yog qhov qhia tau tseem ceeb los ntsuas cov qib thev naus laus zis. Lub tshuab nqus tsev vacuum smelting rauv, sintering rauv thiab qib siab tsis siv neeg tswj lub dav hlau zeb raug xaiv nyob rau hauv peb lub tuam txhab cov cuab yeej tsim khoom, uas ua kom muaj cov pa oxygen dawb ntawm cov txheej txheem ntau lawm, thiab ua kom muaj kev ua tau zoo thiab kev ua haujlwm kub ntawm cov khoom.
16 Yam cuam tshuam rau kev ua cov hlau nplaum?
Tus nqi ntawm cov hlau nplaum yog feem ntau cuam tshuam los ntawm cov hauv qab no: kev ua tau zoo, batch loj, cov duab tshwj xeeb, thiab qhov ntev ntev. Qhov siab dua qhov kev xav tau ntawm kev ua haujlwm, tus nqi ntau dua. Piv txwv li, tus nqi ntawm N45 hlau nplaum yog ntau dua li ntawm N35; qhov me me ntawm batch, ntau dua tus nqi ua; qhov nyuaj ntawm cov duab, ntau dua cov nqi ua haujlwm; qhov nruj dua qhov kam rau ua, siab dua tus nqi ua.
17 Txog cov khoom siv hlau nplaum uas tsis tshua muaj hauv ntiaj teb
Cov khoom siv hlau nplaum tsis tshua muaj hauv ntiaj teb yog lub ntiaj teb tsis tshua muaj cov hlau nplaum ruaj khov uas muaj samarium, neodymium sib xyaw cov hlau tsis tshua muaj ntiaj teb thiab cov hlau hloov pauv, uas yog nias thiab sintered los ntawm hmoov metallurgy txoj kev thiab magnetized los ntawm magnetic teb.
Raws li cov khoom siv ua haujlwm tau zoo, cov khoom siv hlau nplaum tsis tshua muaj hauv ntiaj teb tau siv dav hauv lub zog, kev thauj mus los, tshuab, kev kho mob, IT, khoom siv hauv tsev thiab lwm yam, thiab tau dhau los ua lub hauv paus ntawm ntau yam kev lag luam high-tech. NdFeB cov khoom siv hlau nplaum tsis tshua muaj hauv ntiaj teb tau dhau los ua kev lag luam loj tshaj plaws thiab kev lag luam feem ntau vim nws qhov kev ua tau zoo-tus nqi piv.