Grain Boundary Diffusion
Lus piav qhia luv luv:
● Kev tsim khoom loj ntawm kev ua haujlwm siab NdFeB hlau nplaum nrog cov khoom sib nqus(BH) max+Hcj≥75, xws li qib ntawmG45UH, G48EH, G50UH, G52UH.
● Tus nqi ntawm GBD hlau nplaum yog qis dua qhov uas ua los ntawm cov khoom siv tshuab los ntawmntau tshaj 20%.
● Pab pawg Magnet Power tau tsim cov txheej txheem tshuaj tsuag thiab PVD. Thiab peb muaj cov txheej txheem thev naus laus zis paub tab thiab kev tswj hwm nruj.
● Lub tshuab GBD yog tsim rau NdFeB cov ntaub ntawv nrog lub thickness tsawg dua10 hli.
Grain ciam diffusion txoj kev, cov txheej txheem tshwj xeeb yog hais txog kev qhia txog cov khoom hnyav hauv ntiaj teb tsis tshua muaj Dy thiab Tb nyias zaj duab xis rau saum npoo ntawm cov hlau nplaum, qhov kub ntawm lub ntiaj teb tsis tshua muaj nplua nuj theem siab tshaj qhov melting point ntawm kub nqus diffusion kho, yog li ntawd lub ntiaj teb hnyav atoms nyob rau hauv lub grain ciam teb ua kua theem mus rau sab hauv ntawm cov hlau nplaum, lub ntsiab theem grain epitaxis txheej tsim (Nd, Dy, Tb) 2Fe14B plhaub qauv; Lub ntsiab theem anisotropy teb yog txhim kho. Kev hloov pauv ntawm cov ciam teb yog qhov tsis tu ncua thiab ncaj, qhov sib nqus coupling nyhuv ntawm lub ntsiab theem yog suppressed, lub Hcj ntawm cov hlau nplaum yog ho nce, thiab Br thiab (BH) max ntawm cov hlau nplaum tsis cuam tshuam.
1. Txo qhov hnyav tsawg hauv ntiaj teb: Tib qib ntawm cov hlau nplaum, kev siv cov lis ciam diffusion tuaj yeem txo qhov kev siv dysprosium (Dy), terbium (Tb) thiab lwm yam hnyav tsis tshua muaj lub ntiaj teb, yog li txo tus nqi. Hauv cov txheej txheem ib txwm muaj, ntau lub ntiaj teb tsis tshua muaj hnyav yuav nkag mus rau theem tseem ceeb ntawm cov nplej, uas ua rau muaj kev txo qis hauv kev rov qab los, tab sis txoj kev lis ntshav ciam teb ua rau lub ntiaj teb tsis tshua muaj hnyav feem ntau yog nyob ntawm thaj tsam ntawm cov qoob loo, uas tuaj yeem txhim kho kev coercivity. thaum tuav lub siab remanence.
2. Kev npaj ntawm kev ua haujlwm zoo sib nqus hlau nplaum: Nws tuaj yeem npaj cov khoom sib nqus zoo sib nqus hlau nplaum uas tsis tuaj yeem ncav cuag los ntawm cov cuab yeej siv niaj hnub, xws li 50EH, 52UH, thiab lwm yam. Los ntawm kev tsim cov yeeb yaj kiab uas tsis tshua muaj hauv ntiaj teb ntawm cov hlau nplaum hlau nplaum thiab ua kom sov hauv lub tshuab nqus tsev, lub ntiaj teb hnyav tsis tshua muaj nkag mus rau hauv. cov hlau nplaum raws cov ciam teb, hloov cov neodymium (Nd) atoms nyob ib ncig ntawm lub ntsiab theem nplej los tsim lub plhaub siab coercive, uas zoo heev txhim kho. lub coercive quab yuam thiab muaj ib tug tsawg remanence poob nqi.
3. Txhim kho coercivity: Nws tuaj yeem txhim kho qhov coercivity ntawm cov hlau nplaum, thiab cov coercivity nce loj, xws li kev siv Dy diffusion tuaj yeemtxhim kho 4kOe ~ 7kOe, kev siv Tb diffusion tuaj yeemtxhim kho 8kOe ~ 11kOe, thiab qhov txo qis ntawm remanence yog me me (br txo hauv 0.3kGs).
4. Kho nto magnetic zog: kev puas tsuaj ntawm cov hlau nplaum nto tom qab machining yuav ua rau lub zog ntawm cov hlau nplaum tsis muaj zog, tshwj xeeb tshaj yog rau cov qauv me me, thiab kev siv cov khoom siv lis piam thaj diffusion tuaj yeem kho thiab txhim kho cov khoom sib nqus ntawm cov hlau nplaum nto.
Rau kev faib khoom zoo ntawm HRE ntawm NdFeB lis ciam teb. Nws yog qhov ua tau los txhim kho siab coceivity thiab tsis txo Ms ntau dhau.G48EH, G52UH, G54SHqib, uas nyuaj tsim los ntawm alloy technology, yog tsim los ntawm GBD technology. Qhov zoo ntawm cov hlau nplaum no yog txiav txim los ntawm cov qauv ntawm cov hlau nplaum.Hangzhou hlau nplaum fais fab tuaj yeem ruaj khov tsim khoomG45EH,G48EH,G50UH,G52UHthiab lwm yam.
Magnet Power tau txais ISO9001 thiab IATF16949 ntawv pov thawj. Lub tuam txhab tau raug lees paub tias yog lub tuam txhab me-rau-nruab nrab-qhov loj me thiab lub teb chaws high-tech enterprise. Txog tam sim no, Magnet Power tau thov 20 daim ntawv thov patent, suav nrog 11 daim ntawv tsim khoom.
