Hang Zhou Magnet Power's Vacuum Aluminium coated Magnet
Lus piav qhia luv luv:
Lub tshuab nqus tsev aluminium coated Magnet hlau nplaum, tsim thiab tsim los ntawm Hang Zhou Magnet Power, muaj lub zog zoo kawg thiab ua haujlwm ntev. Nws cov kev tsim tshwj xeeb ua kom ntseeg tau tias nws tuaj yeem tiv taus txawm tias qhov xav tau tshaj plaws, ua rau nws yog qhov kev daws teeb meem zoo tshaj plaws rau ntau hom kev lag luam thiab kev lag luam.
●Sintered NdFeB hlau nplaumtau siv dav rau lawv cov khoom sib nqus zoo kawg li. Txawm li cas los xij, cov hlau nplaum 'tsis zoo corrosion kuj cuam tshuam lawv cov kev siv ntxiv hauv kev lag luam, thiab cov txheej txheem saum npoo yog tsim nyog. Cov txheej txheem siv dav siv tam sim no suav nrog electroplating Ni-based coatings, electroplating Zn-based coatings, nrog rau electrophoretic lossis tshuaj tsuag epoxy txheej. Tab sis nrog kev nce qib ntawm kev siv thev naus laus zis, cov kev xav tau rau txheej txheej ntawm NdFeB kuj nce ntxiv, thiab cov txheej txheem electroplating qee zaum tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua. Al-raws li txheej tso siv lub cev vapor deposition (PVD) tshuab muaj cov yam ntxwv zoo heev.
● Cov txheej txheem PVD xws li sputtering, ion plating, thiab evaporation plating tuaj yeem tau txais cov txheej txheem tiv thaiv. Table 1 teev cov ntsiab cai thiab cov yam ntxwv sib piv ntawm electroplating thiab sputtering txoj kev.
Table 1 Kev sib piv cov yam ntxwv ntawm electroplating thiab sputtering txoj kev
Sputtering yog qhov tshwm sim ntawm kev siv cov khoom siv hluav taws xob siab los ua ib qho khoom nto, ua rau cov atoms thiab cov molecules ntawm cov khoom nto los pauv lub zog kinetic nrog cov khoom siv hluav taws xob siab, yog li txaws tawm ntawm cov khoom nto. Nws tau pom thawj zaug los ntawm Grove hauv xyoo 1852. Raws li nws lub sijhawm txhim kho, muaj kev sib tw thib ob, tertiary sputtering, thiab lwm yam. Txawm li cas los xij, vim tsis muaj kev sib txuas lus tsis zoo thiab lwm yam laj thawj, nws tsis tau siv dav txog xyoo 1974 thaum Chapin tau tsim cov magnetron sputtering sib npaug, ua rau kev kub ceev thiab qis kub sputtering qhov tseeb, thiab magnetron sputtering tshuab tau tsim sai. Magnetron sputtering yog ib txoj kev sputtering uas qhia txog electromagnetic teb thaum lub sij hawm sputtering txheej txheem kom ionization tus nqi mus rau 5% -6%. Lub schematic daim duab ntawm balanced magnetron sputtering yog qhia nyob rau hauv daim duab 1.
Daim duab 1 Daim duab qhia txog kev sib npaug magnetron sputtering
Vim nws zoo heev corrosion kuj, Al txheej tso los ntawm ion vapor deposition (IVD) tau siv los ntawm Boeing ua ib qho kev hloov rau electroplating Cd. Thaum siv rau sintered NdFeB, nws feem ntau muaj cov hauv qab no zoo:
1.High nplaum lub zog.
Lub zog nplaum ntawm Al thiabNdFeBFeem ntau ≥ 25MPa, thaum lub zog nplaum ntawm cov electroplated Ni thiab NdFeB yog li 8-12MPa, thiab lub zog nplaum ntawm electroplated Zn thiab NdFeB yog li 6-10MPa. Cov yam ntxwv no ua rau Al / NdFeB haum rau txhua daim ntawv thov uas xav tau lub zog nplaum siab. Raws li pom nyob rau hauv daim duab 2, tom qab alternating 10 cycles ntawm kev cuam tshuam ntawm (-196 ° C) thiab (200 ° C), lub nplaum lub zog ntawm Al txheej tseem zoo heev.
Daim duab 2 photo
2. So hauv cov kua nplaum.
Al txheej muaj hydrophilicity thiab lub kaum sab xis ntawm cov kua nplaum yog me me, tsis muaj kev pheej hmoo ntawm kev poob. Daim duab 3 qhia txog 38mN nto nro kua. Cov kua ntsuas no tau kis tag rau ntawm qhov chaw ntawm Al txheej.
Daim duab 3. qhov kev ntsuam xyuas ntawm 38mN nto nro
3.Qhov sib nqus permeability ntawm Al yog tsawg heev (tus txheeb ze permeability: 1.00) thiab yuav tsis ua rau shielding ntawm magnetic zog.
Qhov no tseem ceeb tshwj xeeb hauv kev siv cov hlau nplaum me me hauv 3C teb. Kev ua haujlwm saum npoo yog qhov tseem ceeb heev. Raws li pom hauv daim duab 4, rau D10 * 10 qauv kem, lub zog ntawm Al txheej ntawm cov khoom sib nqus yog tsawg heev.
Daim duab 4 Kev hloov pauv hauv cov khoom sib nqus ntawm sintered NdFeB tom qab tso PVD Al txheej thiab electroplating NiCuNi txheej rau saum npoo.
5.The PVD technology deposition txheej txheem yog kiag li ib puag ncig tus phooj ywg thiab tsis muaj ib puag ncig muaj kuab paug teeb meem.
Raws li cov kev xav tau xav tau, PVD thev naus laus zis tuaj yeem tso nyiaj ntau, xws li Al / Al2O3 multilayers nrog corrosion kuj zoo heev thiab Al / AlN txheej nrog cov khoom zoo heev. Raws li pom nyob rau hauv daim duab 5, tus ntoo khaub lig-sectional qauv ntawm Al / Al2O3 multilayer txheej.
Daim duab 5 Hla ntu ntawm Al/Al2O3 multilyaers
Tam sim no, cov teeb meem tseem ceeb txwv kev lag luam ntawm Al txheej ntawm NdFeB yog:
(1) Rau sab ntawm cov hlau nplaum yog sib npaug. Qhov yuav tsum tau muaj kev tiv thaiv hlau nplaum yog tso rau qhov sib npaug ntawm txheej txheej ntawm cov hlau nplaum, uas yuav tsum tau daws qhov kev sib hloov ntawm peb sab ntawm cov hlau nplaum hauv batch ua kom ntseeg tau tias cov txheej txheem zoo sib xws;
(2) Al txheej stripping txheej txheem. Nyob rau hauv cov txheej txheem kev lag luam loj loj, nws yog ib qho inevitable uas cov khoom tsis tsim nyog yuav tshwm sim. Yog li ntawd, nws yog ib qho tsim nyog los tshem tawm cov txheej txheem Al tsis tsim nyog thiab rov tiv thaiv nws yam tsis muaj kev puas tsuaj rau cov hlau nplaum NdFeB;
(3) Raws li ib puag ncig daim ntawv thov, sintered NdFeB hlau nplaum muaj ntau qib thiab cov duab. Yog li ntawd, nws yog ib qho tsim nyog los kawm txog kev tiv thaiv tsim nyog rau cov qib sib txawv thiab cov duab;
(4) Kev tsim cov khoom siv ntau lawm. Cov txheej txheem ntau lawm yuav tsum ua kom muaj kev tsim nyog tsim nyog, uas yuav tsum tau tsim cov khoom siv PVD tsim nyog rau NdFeB hlau nplaum tiv thaiv thiab nrog kev ua haujlwm siab;
(5) Txo tus nqi ntawm PVD technology ntau lawm thiab txhim kho kev lag luam kev sib tw;
Tom qab xyoo ntawm kev tshawb fawb thiab kev tsim kho kev lag luam. Hangzhou Magnet Fais Fab Technology tau tuaj yeem muab cov khoom lag luam PVD Al plated rau cov neeg siv khoom. Raws li pom cov duab hauv qab no, cov duab cov khoom cuam tshuam.
