Sintered NdFeB maginito okhazikika, monga chimodzi mwa zinthu zofunika kulimbikitsa luso lamakono ndi kupita patsogolo chikhalidwe, chimagwiritsidwa ntchito m'madera otsatirawa: kompyuta zolimba litayamba, nyukiliya maginito kumveka kumveka, magalimoto magetsi, m'badwo mphamvu mphepo, mafakitale okhazikika maginito Motors, ogula zamagetsi (ma CD, DVD, mafoni am'manja, zomvetsera, zokopera, masikani, makamera avidiyo, makamera, mafiriji, ma TV, zoyatsira mpweya, ndi zina zotero) ndi maginito makina, maginito levitation luso, maginito kufala ndi mafakitale ena.
M'zaka 30 zapitazi, makampani okhazikika a maginito padziko lonse lapansi akhala akuchulukirachulukira kuyambira 1985, pomwe makampaniwa adayamba kukhala otukuka ku Japan, China, Europe ndi United States, ndipo mphamvu zamaginito zakhala zikukhazikitsa mbiri yatsopano ndikuwonjezera kuchuluka kwa maginito. mitundu ya zinthu ndi magiredi. Pamodzi ndi kukula kwa msika, opanga nawonso akuwonjezeka, ndipo makasitomala ambiri mosakayikira amagwidwa ndi chisokonezo ichi, momwe angaweruzire zoyenera za mankhwalawa? Njira yodziwika kwambiri yoweruzira: choyamba, magwiridwe antchito a maginito; chachiwiri, kukula kwa maginito; chachitatu, zokutira maginito.
Choyamba, chitsimikiziro cha ntchito ya maginito chimachokera ku kayendetsedwe ka kayendetsedwe kazinthu zopangira
1, Malinga ndi zofunika za ogwira ntchito kupanga mkulu-kalasi kapena m'ma kalasi kapena otsika kalasi sintered NdFeB, zopangira zikuchokera malinga ndi muyezo dziko kugula zopangira.
2, Njira zopangira zapamwamba zimatsimikizira momwe maginito amagwirira ntchito. Pakalipano, matekinoloje apamwamba kwambiri ndi teknoloji ya Scaled Ingot Casting (SC), Hydrogen Crushing (HD) ndi luso la Airflow Mill (JM).
ng'anjo zazing'ono zosungunula zotsekemera (10kg, 25kg, 50kg) zasinthidwa ndi mphamvu zazikulu (100kg, 200kg, 600kg, 800kg) ng'anjo zotsekemera, SC (StripCasting) teknoloji yasintha pang'onopang'ono ingots zazikulu (ingots ndi makulidwe aakulu kuposa 20). 40mm kumbali yakuzirala), HD (Hydrogen Crushing) teknoloji ndi gas flow mphero (JM) m'malo mwa nsagwada, disc mphero, mpira mphero (yonyowa ufa kupanga), kuonetsetsa kufanana kwa ufa, ndipo zimathandiza kuti madzi gawo sintering ndi kuyenga tirigu.
3, Pa maginito orientation, China ndi dziko lokhalo mu dziko amene utenga awiri sitepe atolankhani akamaumba, ndi yaing'ono kuthamanga ofukula akamaumba kwa orientation ndi quasi-isostatic akamaumba kumapeto, chimene ndi chimodzi mwa zinthu zofunika kwambiri za sintered China. Makampani a NdFeB.
Kachiwiri, chitsimikiziro cha kukula kwa maginito kumadalira mphamvu yokonza fakitale
The kwenikweni ntchito NdFeB maginito okhazikika ali akalumikidzidwa zosiyanasiyana, monga kuzungulira, cylindrical, cylindrical (ndi dzenje lamkati); lalikulu, lalikulu, lalikulu; matailosi, zimakupiza, trapezoid, poligoni ndi zosiyanasiyana akalumikidzidwa osasamba.
Maonekedwe aliwonse a maginito okhazikika amakhala ndi makulidwe osiyanasiyana, ndipo kupanga kwake kumakhala kovuta kupangidwa kamodzi. The ndondomeko ambiri kupanga ndi: Bambo linanena bungwe lalikulu (lalikulu) akusowekapo, pambuyo sintering ndi tempering mankhwala, ndiye kudzera processing makina (kuphatikizapo kudula, kukhomerera) ndi akupera, pamwamba plating (❖ kuyanika) processing, ndiyeno maginito ntchito, pamwamba khalidwe ndi kuyezetsa kulondola kwa dimensional, ndiyeno magnetization, ma CD ndi fakitale.
1, makina processing agawidwa m'magulu atatu: (1) kudula processing: kudula cylindrical, maginito lalikulu woboola pakati mu kuzungulira, lalikulu woboola pakati, (2) mawonekedwe processing: processing kuzungulira, maginito lalikulu mu zimakupiza woboola pakati, matailosi woboola pakati kapena matailosi. okhala ndi ma grooves kapena mawonekedwe ena ovuta a maginito, (3) kukonza kukhomerera: kukonza mozungulira, maginito owoneka ngati mipiringidzo kukhala maginito ozungulira kapena mabwalo. Njira zopangira ndi: kugaya ndi kudula, EDM kudula processing ndi laser processing.
2, Pamwamba pa sintered NdFeB okhazikika maginito zigawo zikuluzikulu zambiri amafuna kusalala ndi mwatsatanetsatane zina, ndi pamwamba maginito kuperekedwa akusoweka kanthu pamwamba akupera processing. Wamba akupera njira lalikulu NdFeB okhazikika maginito aloyi ndi ndege akupera, pawiri mapeto akupera, akupera mkati, akupera kunja, etc. Cylindrical ambiri ntchito coreless akupera, iwiri mapeto akupera, etc. Pakuti matailosi, zimakupiza ndi VCM maginito, Mipikisano siteshoni akupera amagwiritsidwa ntchito.
Maginito oyenerera samangofunika kuti akwaniritse muyeso wa magwiridwe antchito, komanso kuwongolera kwapang'onopang'ono kumakhudza mwachindunji ntchito yake. The dimensional chitsimikizo mwachindunji zimadalira mphamvu processing fakitale. Zida zogwirira ntchito zimasinthidwa nthawi zonse ndi kufunikira kwachuma ndi msika, ndipo machitidwe a zida zogwirira ntchito komanso makina opanga mafakitale sikuti amangokwaniritsa zomwe makasitomala akufuna kuti azitha kulondola, komanso kupulumutsa antchito ndi mtengo, ndikupangitsa kuti zikhale zopikisana kwambiri. msika.
Apanso, mtundu wa plating wa maginito umatsimikizira moyo wa ntchito ya chinthucho
Experimentally, 1cm3 sintered NdFeB maginito adzakhala dzimbiri ndi makutidwe ndi okosijeni ngati atasiyidwa mu mlengalenga pa 150 ℃ kwa masiku 51. Mu njira yofooka ya asidi, imatha kukhala ndi dzimbiri. Kuti maginito a NdFeB akhale olimba, amafunika kukhala ndi moyo wazaka 20-30.
Iyenera kuthandizidwa ndi mankhwala odana ndi dzimbiri kuti maginito asawonongedwe ndi zida zowononga. Pakali pano, maginito sintered NdFeB zambiri yokutidwa ndi zitsulo plating, electroplating + mankhwala plating, electrophoretic ❖ kuyanika ndi mankhwala mankwala kuteteza maginito kwa sing'anga zikuwononga.
1, kawirikawiri kanasonkhezereka, faifi tambala + mkuwa + faifi tambala plating, faifi tambala + mkuwa + mankhwala faifi tambala plating njira zitatu, zina zitsulo plating zofunika, nthawi zambiri ntchito pambuyo faifi tambala plating ndiyeno zitsulo plating.
2, muzochitika zina zapadera adzagwiritsanso ntchito phosphating: (1) mu NdFeB maginito mankhwala chifukwa cha zolowa, kusunga nthawi yaitali kwambiri ndipo si bwino pamene wotsatira pamwamba mankhwala njira, ntchito phosphating yosavuta ndi yosavuta; (2) pamene maginito amafuna epoxy zomatira kugwirizana, penti, etc., zomatira, utoto ndi zina epoxy organic adhesion amafuna bwino kulowerera ntchito gawo lapansi. Phosphating process imatha kupititsa patsogolo mphamvu ya maginito kulowa.
3, zokutira za electrophoretic zakhala imodzi mwaukadaulo wogwiritsidwa ntchito kwambiri polimbana ndi dzimbiri. Chifukwa sikuti imangokhala ndi mgwirizano wabwino ndi porous maginito pamwamba, komanso imakhala ndi kukana kwa dzimbiri kutsitsi mchere, asidi, alkali, ndi zina zambiri, anti-corrosion. Komabe, kukana kwake ku chinyezi ndi kutentha kumakhala kocheperako poyerekeza ndi zokutira zopopera.
Makasitomala amatha kusankha ❖ kuyanika molingana ndi zomwe akufuna kuchita. Ndi kukula kwa gawo galimoto ntchito, makasitomala ndi zofunika apamwamba kukana dzimbiri wa NdFeB. The mayeso HAST (amatchedwanso PCT mayeso) ndi kuyesa kukana dzimbiri wa sintered NdFeB maginito okhazikika pansi chinyezi ndi kutentha chilengedwe.
Ndipo kasitomala angadziwe bwanji ngati plating ikukwaniritsa zofunikira kapena ayi? Cholinga cha mayeso kutsitsi mchere ndi kuchita mwamsanga odana dzimbiri mayeso pa sintered NdFeB maginito amene pamwamba wakhala ankachitira ndi odana ndi dzimbiri ❖ kuyanika. Pamapeto pa mayesowo, chitsanzocho chimachotsedwa m'chipinda choyesera, chouma, ndikuwonedwa ndi maso kapena galasi lokulitsa kuti muwone ngati pali mawanga pamwamba pa chitsanzo, kukula kwa bokosi la malo kusintha kwa mtundu.
Nthawi yotumiza: Jan-06-2023
