Sintered NdFeB cov hlau nplaum ruaj khov, ua ib yam khoom tseem ceeb los txhawb kev siv technology thiab kev vam meej, tau siv dav hauv cov haujlwm hauv qab no: lub computer hard disk, nuclear magnetic resonance imaging, hluav taws xob tsheb, hluav taws xob tsim hluav taws xob, muaj cov hlau nplaum ruaj khov, cov khoom siv hluav taws xob. (CD, DVD, xov tooj ntawm tes, suab, tshuab luam ntawv, scanners, video koob yees duab, koob yees duab, tub yees, TV teeb, cua txias, thiab lwm yam) thiab sib nqus machinery, magnetic levitation technology, sib nqus kis tau tus mob thiab lwm yam lag luam.
Nyob rau hauv 30 xyoo dhau los, lub ntiaj teb no mus tas li hlau nplaum cov ntaub ntawv kev lag luam tau booming txij li thaum 1985, thaum lub lag luam pib muaj industrialized nyob rau hauv Nyiv, Tuam Tshoj, Teb chaws Europe thiab lub tebchaws United States, thiab cov khoom sib nqus tau teeb tsa cov ntaub ntawv tshiab thiab nce tus naj npawb. khoom ntau yam thiab qib. Nrog rau kev nthuav dav ntawm kev ua lag luam, cov tuam txhab tsim khoom kuj nce ntxiv, thiab ntau tus neeg siv khoom tau raug ntes nyob rau hauv qhov tsis meej pem, yuav ua li cas txiav txim siab qhov zoo ntawm cov khoom? Txoj kev zoo tshaj plaws los txiav txim: ua ntej, kev ua haujlwm ntawm cov hlau nplaum; thib ob, magnet loj; thib peb, hlau nplaum txheej.
Ua ntej, qhov kev lees paub ntawm cov hlau nplaum ua tau zoo los ntawm kev tswj cov txheej txheem ntawm cov khoom siv raw
1, Raws li cov kev xav tau ntawm kev lag luam tsim cov qib siab lossis qib nruab nrab lossis qib qis sintered NdFeB, cov khoom siv raw khoom raws li lub teb chaws tus qauv los yuav cov khoom siv raw.
2 、 Cov txheej txheem ntau lawm ncaj qha txiav txim siab qhov ua tau zoo ntawm cov hlau nplaum. Tam sim no, cov thev naus laus zis tshaj plaws yog Scaled Ingot Casting (SC) technology, Hydrogen Crushing (HD) technology thiab Airflow Mill (JM) technology.
Lub peev xwm me me nqus induction smelting furnaces (10kg, 25kg, 50kg) tau hloov los ntawm lub peev xwm loj (100kg, 200kg, 600kg, 800kg) lub tshuab nqus tsev induction furnaces, SC (StripCasting) thev naus laus zis tau maj mam hloov cov khoom lag luam loj (ingots nrog thickness ntau dua 20. 40mm nyob rau hauv cov kev taw qhia txias), HD (Hydrogen Crushing) thev naus laus zis thiab roj ntws zeb (JM) hloov lub puab tsaig crusher, disc zeb, pob zeb (ntub hmoov ua), kom ntseeg tau tias cov hmoov sib xws, thiab yog qhov tsim nyog rau cov kua theem sintering thiab cov nplej refinement.
3 、 Ntawm kev taw qhia magnetic teb, Tuam Tshoj yog tib lub teb chaws hauv ntiaj teb uas tau txais ob-kauj ruam xovxwm molding, nrog lub siab me me ntsug molding rau kev taw qhia thiab quasi-isostatic molding thaum kawg, uas yog ib qho tseem ceeb tshaj plaws ntawm Tuam Tshoj sintered. NdFeB kev lag luam.
Qhov thib ob, qhov kev lees paub ntawm cov hlau nplaum loj nyob ntawm kev ua lub zog ntawm lub Hoobkas
Daim ntawv thov tiag tiag ntawm NdFeB cov hlau nplaum ruaj khov muaj ntau yam duab, xws li puag ncig, cylindrical, cylindrical (nrog rau sab hauv); square, square, square kem; pobzeb, kiv cua, trapezoid, polygon thiab ntau yam duab tsis xwm yeem.
Txhua daim duab ntawm cov hlau nplaum ruaj khov muaj qhov sib txawv, thiab cov txheej txheem tsim khoom yog qhov nyuaj rau tsim nyob rau hauv ib qho mus. Cov txheej txheem ntau lawm yog: Mr. tso zis loj (loj loj) blanks, tom qab sintering thiab tempering kho, ces los ntawm mechanical processing (xws li txiav, xuas nrig ntaus) thiab sib tsoo, nto plating (txheej) ua, thiab ces magnet kev ua tau zoo, nto zoo thiab dimensional raug kuaj, thiab ces magnetization, ntim thiab Hoobkas.
1, mechanical processing yog muab faib ua peb pawg: (1) txiav ua: txiav cylindrical, square-shaped hlau nplaum rau hauv ib puag ncig, square-puab, (2) kev ua haujlwm: ua puag ncig, square hlau nplaum rau hauv kiv cua, pobzeb-puab los yog nrog cov grooves los yog lwm yam duab ntawm cov hlau nplaum, (3) xuas nrig ntaus ua: ua puag ncig, square bar-puab hlau nplaum rau hauv cylindrical lossis square-shaped hlau nplaum. Cov txheej txheem ua haujlwm yog: kev sib tsoo thiab txiav ua haujlwm, EDM txiav kev ua haujlwm thiab laser ua.
2 、 Qhov saum npoo ntawm sintered NdFeB cov hlau nplaum ruaj khov feem ntau yuav tsum tau ua kom du thiab qee qhov tseeb, thiab qhov chaw ntawm cov hlau nplaum xa hauv qhov khoob xav tau kev sib tsoo ua tiav. Cov kev sib tsoo uas siv rau square NdFeB cov hlau nplaum ruaj khov yog dav hlau sib tsoo, ob qhov kawg sib tsoo, kev sib tsoo sab hauv, kev sib tsoo sab nraud, thiab lwm yam. Cylindrical feem ntau siv coreless sib tsoo, ob qhov kawg sib tsoo, thiab lwm yam. Rau cov pobzeb, kiv cua thiab VCM hlau nplaum, ntau qhov chaw sib tsoo. yog siv.
Cov hlau nplaum tsim nyog tsis yog tsuas yog yuav tsum tau ua kom tau raws li tus qauv kev ua tau zoo, tab sis kuj tseem muaj kev tswj hwm qhov ntev ntawm qhov cuam tshuam ncaj qha rau nws daim ntawv thov. Qhov seem lav ncaj qha nyob ntawm kev ua lub zog ntawm lub Hoobkas. Cov cuab yeej ua haujlwm tau hloov kho tas li nrog kev lag luam thiab kev lag luam xav tau, thiab cov qauv ntawm cov cuab yeej siv tau zoo thiab kev lag luam automation tsis yog tsuas yog ua kom tau raws li qhov xav tau ntawm cov neeg siv khoom ntau ntxiv rau cov khoom raug, tab sis kuj tseem yuav txuag tau cov neeg ua haujlwm thiab cov nqi, ua rau nws muaj kev sib tw ntau dua. lub khw.
Ntxiv dua thiab, qhov zoo ntawm cov hlau nplaum plating ncaj qha txiav txim siab txog daim ntawv thov lub neej ntawm cov khoom
Kev sim, 1cm3 sintered NdFeB hlau nplaum yuav raug corroded los ntawm oxidation yog tias nws tawm hauv huab cua ntawm 150 ℃ rau 51 hnub. Nyob rau hauv tsis muaj zog acid daws, nws yog feem ntau yuav corroded. Txhawm rau ua kom NdFeB cov hlau nplaum ruaj khov, nws yuav tsum muaj lub neej ua haujlwm ntawm 20-30 xyoo.
Nws yuav tsum tau kho nrog kev tiv thaiv corrosion los tiv thaiv corrosion ntawm cov hlau nplaum los ntawm corrosive media. Tam sim no, cov hlau nplaum sintered NdFeB feem ntau coated nrog hlau plating, electroplating + tshuaj plating, electrophoretic txheej thiab phosphate kev kho mob los tiv thaiv cov hlau nplaum los ntawm corrosive nruab nrab.
1, feem ntau galvanized, npib tsib xee + tooj liab + npib tsib xee plating, npib tsib xee + tooj liab + tshuaj npib tsib xee plating peb txheej txheem, lwm yam hlau plating yuav tsum, feem ntau yog thov tom qab nickel plating thiab ces lwm yam hlau plating.
2, nyob rau hauv qee qhov tshwj xeeb kuj tseem yuav siv phosphating: (1) hauv cov khoom siv hlau nplaum NdFeB vim qhov kev hloov pauv, kev txuag lub sij hawm ntev dhau lawm thiab tsis meej thaum cov txheej txheem kev kho deg tom ntej, kev siv phosphating yooj yim thiab yooj yim; (2) Thaum cov hlau nplaum xav tau epoxy nplaum nplaum, pleev xim, thiab lwm yam, kua nplaum, xim thiab lwm yam epoxy organic adhesion yuav tsum muaj kev ua haujlwm zoo ntawm cov substrate. Cov txheej txheem phosphating tuaj yeem txhim kho qhov chaw ntawm cov hlau nplaum muaj peev xwm nkag mus.
3, electrophoretic txheej tau dhau los ua ib qho ntawm cov cuab yeej siv los tiv thaiv corrosion ntog. Vim tias nws tsis tsuas yog muaj kev sib raug zoo nrog cov hlau nplaum nplaum nplaum, tab sis kuj muaj corrosion kuj rau ntsev tsuag, kua qaub, alkali, thiab lwm yam, zoo heev los tiv thaiv corrosion. Txawm li cas los xij, nws tsis kam mus rau av thiab cua sov yog qhov tsis zoo piv rau cov tshuaj tsuag txheej.
Cov neeg siv khoom tuaj yeem xaiv cov txheej txheem raws li lawv cov khoom ua haujlwm. Nrog rau kev nthuav dav ntawm daim ntawv thov lub cev, cov neeg siv khoom muaj kev xav tau ntau dua rau kev tiv thaiv corrosion ntawm NdFeB. Kev xeem HAST (tseem hu ua PCT test) yog txhawm rau kuaj qhov kev tiv thaiv corrosion ntawm sintered NdFeB cov hlau nplaum ruaj khov nyob rau hauv qhov chaw ntub thiab kub kub.
Thiab yuav ua li cas cov neeg siv khoom txiav txim seb lub plating ua tau raws li qhov yuav tsum tau ua los yog tsis? Lub hom phiaj ntawm kev ntsuas tshuaj ntsev yog ua qhov kev ntsuam xyuas sai ntawm cov hlau nplaum NdFeB sintered uas nws nto tau kho nrog cov txheej txheem tiv thaiv corrosion. Thaum kawg ntawm qhov kev xeem, cov qauv raug coj tawm ntawm chav kuaj, qhuav, thiab saib nrog ob lub qhov muag lossis lub iav tsom iav kom pom seb puas muaj cov pob nyob rau saum npoo ntawm cov qauv, qhov loj ntawm qhov chaw ntawm lub thawv xim hloov.
Post lub sij hawm: Jan-06-2023
