Magnet, tshwj xeeb-zoo li tus hlau nplaum nyob rau hauv cov txheej txheem ntau lawm yog ib qho nyuaj rau kev ua ib zaug kev sib sau.
Cov kev txiav txim siab magnet thiab sib sau ua ke: lub sib nqus hmoov ntawm cov hlau nplaum hauv kev tsim tawm, molding tom qab muaj ntau yam, cov khoom tsis zoo, cov khoom tsis yooj yim, cov adsorption ntau dua, cov qauv yooj yim ntawm cov roj ntau dej, mus rau cov txheej txheem tom ntej kom coj teeb meem thiab teeb meem.Vim tias qhov tsawg dua ntawm cov nqi ntsuab, sintering shortening tus nqi yog qhov tsim nyog rau Sintering, thiab cov txheej txheem ntawm Sintering Kev Ua Haujlwm Kev Xav Tau Cov Kev Xav Tau Zoo Siab.
Nyob rau hauv cov txheej txheem ntawm cov hlau nplaum orientation thiab molding, qhov dawb paug yuav tsum mus los ntawm ob txheej txheem thaum muab tso rau hauv lub qhov cub sintering:
Sintering thiab aging:
1. Sintering;Thaum lub sij hawm kub siab rau ib lub sij hawm, qhov tseem ceeb sintered lub cev ntom ntom.Tus txheeb ze ceev tau zoo dua los ntawm 0.6-0.7 mus rau saum 0.95.Internal muaj pes tsawg leeg ntawm txhua grain yog ntxiv homogenized.Qhov chaw nruab nrab ntawm cov khoom yog txo, thiab cov dej adsorbed vapor raug tshem tawm.
2. Kev laus:sintered NdFeb hlau nplaumbillet ceev yog siab, Br yog siab, tab sis coercivity thiab magnetic zog khoom tsis siab.Qhov no yog vim hais tias cov theem neodymium-nplua nuj tsis zoo dispersed.Thaum laus kub, lub neodymium-nplua nuj theem nyias txheej nyob ib ncig ntawm lub ntsiab theem hais thiab cais lawv ntawm ib leeg, tsim ib tug zoo heev txheej txheem conducive rau siab coercivity.Tom qab kev laus, Br ntawm billet tsuas yog ntxiv me ntsis, tab sis kev coercivity yog ob npaug.
Kev taw qhia thiab kev tsim ua ntu ntawm cov hlau nplaum tom qab sintering cov khoom seem yuav tsum tau soj ntsuam thiab kuaj raws li hauv qab no kom ntseeg tau tias cov haujlwm ntawm cov hlau nplaum tsim nyog:
A. Magnetic function test tom qab kub sintering;
B. Kev kuaj pom qhov ntom ntom tom qab kub kub sintering;
C. Kev tshuaj xyuas qhov ntsuas tom qab kub kub sintering;
D. Tom qab kub kub sintering: carbon, oxygen thiab nitrogen tsom xam;
E. Tom qab kos lub demagnetization nkhaus los ntawm lub magnetic meter los txiav txim seb qhov khoob puas txaus siab rau lub teb chaws tus qauv.Txij li feem ntau ntawmNdFeb hlau nplaumyog ua los ntawm hlau, NdFeb tau yooj yim oxidized thaum raug huab cua los yog ib puag ncig ntub.Electroplating Permanent hlau nplaumyog ib txoj hauv kev tseem ceeb los ua kom zoo nkauj zoo nkauj ntawm cov hlau nplaum thiab ntxiv cov hlau nplaum preservation lub sij hawm.Magnet nto ua feem ntau zinc, zinc dub, npib tsib xee, tooj liab, kub, nyiaj, epoxy resin.
Deg plating yog txawv ntawm nws cov xim yog txawv, lub sij hawm khaws cia tsis zoo ib yam, txhua tus muaj qhov zoo thiab qhov tsis zoo.
1. Zinc: lub ntsej muag yog nyiaj dawb, tuaj yeem ua tau 12 mus rau 48 xuab moos ntawm cov tshuaj ntsev ntsev, tuaj yeem txuas nrog qee cov kua nplaum siv (xws li AB kua nplaum), yog tias cov nyhuv electroplating zoo, nws tuaj yeem khaws cia rau ob mus rau tsib xyoos. , electroplating nqi yog tsawg.
2. Nickel: cov tsos zoo li cov xim tsis muaj xim hlau, muab tso rau hauv cov huab cua zoo li tsis yooj yim rau oxidize, zoo li zoo, gloss zoo, tuaj yeem ua 12 mus rau 72 teev ntawm kev sim ntsev tsuag.Qhov tsis zoo yog tias nws tsis yooj yim rau siv cov kua nplaum rau kev sib txuas, cov tsos ntawm lubrication adhesion tsis nruj, thiab cov txheej yog yooj yim kom poob.Txhawm rau kom ceev oxidation, kev lag luam tam sim no ntau nickel - tooj liab - npib tsib xee plating txoj kev ua 24-96 teev ntsev tsuag.
3. Dub Zinc: Raws li cov neeg siv khoom xav tau ntawm cov hlau nplaum saum npoo yog ua tiav rau hauv cov xim dub, yog los ntawm kev kho tshuaj galvanized ntxiv rau txheej txheej ntawm cov xim dub, zaj duab xis no kuj tuaj yeem ua si cov nyhuv ntawm kev saib xyuas hlau nplaum, nce qhov ntsev tsuag lub sij hawm.Tab sis nws cov tsos yog ib qho yooj yim mus khawb, poob nws cov nyhuv txij nkawm.
4. Dub Nickel: nrog tib cov kev cai ntawm zinc plating dub, yog nyob rau hauv lub hauv paus ntawm npib tsib xee plating tom qab kev kho mob tshuaj ntxiv ib txheej ntawm dub tu zaj duab xis.
5. Kub: feem ntau siv nyob rau hauv cov hniav nyiaj hniav kub hlau nplaum accessories, tam sim no muaj ntau heev nrov sib nqus tes ornaments.
6. Epoxy resin: txhawm rau ntxiv ntsev tshuaj tiv thaiv rau cov khoom, ib txheej ntawm cov xim pleev xim yog ntxiv sab nraum cov hlau nplaum tom qab npib tsib xee plating, uas feem ntau yog xim dub.Nws yog ib txheej nrog zoo corrosion kuj sab nraum cov hlau nplaum txheej.Magnet orientation thiab tsim nyob rau hauv qhov kev txiav txim ntawm hlau nplaum magnetization, lub ntsiab lus yog magnetize cov khoom sib nqus los yog tsis muaj hlau nplaum hlau nplaum ntxiv magnetic.Feem ntau, cov khoom sib nqus yuav tsum tau muab tso rau hauv qhov chaw sib nqus muaj zog uas tsim los ntawm cov kauj los ntawm qhov ncaj qha tam sim no dhau mus, thiab cov khoom sib nqus hauv cov hlau nplaum yog catalyzed los ntawm sab nraud magnetic teb.
Post lub sij hawm: Aug-06-2022