Cov teeb meem uas yuav tsum tau them sai sai rau ua ntej electroplating magnetic cov ntaub ntawv

Neodymium hlau boron magnetic cov ntaub ntawv yog tsim los ntawm kev sib tov, nias, thiab sintering cov tshuaj ntsuam ultrafine hmoov ntawm neodymium, hlau, thiab boron. Machined rau hauv cov duab sib txawv raws li cov khoom siv xav tau. Vim muaj cov khoom siv tshuaj lom neeg ntawm cov khoom siv no thiab nws qhov muaj kev cuam tshuam rau oxidation, nws cov khoom tiav yuav tsum tau electroplating thiab txheej txheej. Txawm li cas los xij, qhov zoo ntawm electroplating txheej yog ze ze rau nws txoj kev kho ua ntej.
Txoj kev kho ua ntej no feem ntau suav nrog cov txheej txheem xws li degreasing, tshem tawm xeb, thiab ua kom muaj zog. Yog tias ib qho ntawm cov txheej txheem ua ntej no tsis tau ua kom huv si, nws yuav ua rau muaj qhov tsis xws luag rau cov khoom siv electroplating zaum kawg, ua rau muaj teeb meem xws li blistering thiab tev ntawm txheej electroplating. Cov khoom siv hlau nplaum tsis zoo yuav poob lawv cov nqi lag luam thiab raug muab pov tseg. Yog tias cov khoom siv hlau nplaum nrog cov khoom siv zais tau siv rau cov khoom siv, nws yuav ua rau tag nrho lub tshuab ua haujlwm tsis zoo vim yog siv cov khoom tsis tsim nyog. Txawm ua rau muaj txim loj.
1. Kev kho cov txheej txheem rau neodymium hlau boron magnetic cov ntaub ntawv ua ntej electroplating
Neodymium hlau boron magnetic cov ntaub ntawv tsis yog tuab li forged hlau cov ntaub ntawv. Nws belongs rau cov ntaub ntawv microporous. Nws qhov ntxeem tau coj ntau yam teeb meem thiab teeb meem rau kev kho ua ntej ntawm electroplating. Ntxiv nrog rau kev tshem tawm alkaline thiab acidic tshuaj nyob rau saum npoo ntawm lub workpiece thiab av coj los ntawm cov txheej txheem ua, qhov nyuaj tshaj plaws yog yuav ua li cas ntxuav cov av hauv micropores.
Rau cov khoom siv hlau nplaum uas tsis tshua muaj feem ntau, cov txheej txheem ua ntej kev kho mob yav dhau los siv yog: alkaline degreasing - dej ntxuav - acid ntxuav (bleaching, neutralization) - dej ntxuav - nto ua kom - electroplating. Txawm hais tias cov txheej txheem no yooj yim, nws muaj qhov yuav tsum tau ua rau cov neeg ua haujlwm degreasing, yuav tsum tau siv cov neodymium hlau boron nplooj siab degreasing agents. Cov mis ntawm no degreasing tus neeg saib xyuas yog complex, yuav tsum tau ntau yam raw cov ntaub ntawv, thiab tus neeg siv cov txheej txheem kev npaj yog cumbersome heev. Thiab thaum qhov piv tsis tsim nyog, nws yuav ua tsis tau thiab muaj kev ua haujlwm tsis zoo.
Txij li thaum lub advent ntawm high-power ultrasonic tu tshuab nyob rau hauv industrial ntau lawm, qhov teeb meem no tau yooj yim daws tau. Cov nyhuv cavitation tshwj xeeb ntawm kev ntxuav ultrasonic tuaj yeem tshem tawm cov tshuaj alkaline thiab acidic tag nrho hauv cov micropores ntawm cov khoom sib nqus.
Tom qab ntxuav ultrasonic, cov txheej txheem ua ntej kho rau neodymium hlau boron magnetic cov ntaub ntawv feem ntau yog raws li nram no:
(1) Alkaline degreasing - dej bleaching - ultrasonic zoo bleaching - dilute nitric acid kev kho mob (neutralization, bleaching) - dej yaug - dej yaug - ultrasonic zoo bleaching - activation kev kho mob - electroplating
(2) Alkaline degreasing - dej yaug - dej yaug - ultrasonic zoo bleaching - dilute nitric acid (neutralization, bleaching) kev kho - dej yaug - dej yaug - ultrasonic zoo bleaching - activation kho - dej yaug - dej yaug - ultrasonic zoo bleaching - electroplating
(3) Ultrasonic alkaline degreasing - dej yaug - dej yaug - ultrasonic zoo bleaching - dilute nitric acid (neutralization, bleaching) kev kho - dej yaug - dej yaug - ultrasonic zoo bleaching - activation kho - dej yaug - dej yaug - ultrasonic zoo bleaching - electroplating
Kev tshuaj xyuas peb cov txheej txheem saum toj no, qhov sib txawv nyob hauv: tus yam ntxwv ntawm cov txheej txheem (1) yog tias nws tau ncaj qha electroplated tom qab ua kom muaj kev kho mob. Txawm li cas los xij, tom qab ua kom muaj kev kho mob, ob txheej txheem (2) thiab (3) txuas ntxiv siv ultrasonic zoo yaug. Yog vim li cas rau kev siv thawj cov txheej txheem yog ntseeg hais tias qhov saum npoo ntawm cov khoom siv hlau nplaum workpiece tom qab ua kom muaj kev kho mob yog qhov zoo tshaj plaws thiab tsim nyog rau kev sib txuas nrog cov txheej txheem electroplating. Ib qho yooj yim los xyuas kom meej electroplating zoo. Yog vim li cas siv ob lossis peb txheej txheem yog tias cov tshuaj ua kom muaj kua qaub, thiab cov khoom seem acidic nyob rau hauv micropores ntawm lub workpiece yuav tsum raug tshem tawm ntxiv los ntawm kev ntxuav ultrasonic kom ntseeg tau tias electroplating zoo.
Qhov zoo tshaj plaws ntawm cov txheej txheem no yog kev siv ultrasonic zoo rinsing tom qab alkaline thiab acidic tu, thiab txheej txheem (3) siv mus txog plaub ultrasonic tu passes.
Peb pom zoo kom cov lag luam nrog cov txheej txheem txais yuav cov txheej txheem (3), tshwj xeeb tshaj yog rau qib high-qib sib nqus cov ntaub ntawv, nws yog qhov tsim nyog siv ntau dhau ntawm ultrasonic tu, uas tuaj yeem ua kom zoo ntawm cov khoom siv electroplating. Tau kawg, nws tsis tau txiav txim siab tias cov neeg siv tuaj yeem xaiv cov txheej txheem ntxuav sib txawv raws li lawv tus kheej kev ua haujlwm thiab cov khoom siv.
2. Xaiv txoj kev ntxuav
Qhov kev tso kawm ntawm workpieces nyob rau hauv lub tank tu yog ze ze rau kev tu kom zoo, thiab nws qhov kev tso kawm kuj muaj feem xyuam rau qhov loj, zoo, thiab cov qauv ntawm workpieces. Feem ntau hais lus, overlapping lossis ntau stacking ntawm workpieces tuaj yeem cuam tshuam cov nyhuv tu.
Txawm hais tias neodymium hlau boron magnetic cov ntaub ntawv muaj cov duab sib txawv, lawv feem ntau yog cov khoom me me. Nws tuaj yeem muab tso rau ntawm ib lub nylon mesh thiab shaken nyob rau hauv lub tank tu kom huv si, uas yuav pab tshem tawm cov av ntawm qhov chaw ntawm lub workpiece thiab tseem yuav pab ua kom puas cov dej zaj duab xis ntawm lub workpiece nrog qhov muag tsis pom qhov, ua rau nws muaj feem xyuam rau cavitation los ntawm lub workpiece. qhov dig muag qhov. Lwm txoj hauv kev yog ncaj qha kis cov khoom ua haujlwm ntawm lub phaj hauv qab ntawm lub tank ntxuav (uas yog, lub phaj hluav taws xob ntawm ultrasonic transducer), kom lub workpiece tuaj yeem tiv taus qhov cuam tshuam ultrasonic. Kev xyaum tau ua pov thawj tias txoj kev no ncaj qha tso lub workpiece ntawm lub phaj hauv qab rau kev tu kom huv si zoo tshaj plaws thiab ua haujlwm zoo tshaj plaws. Yuav kom hloov mus rau txoj kev tu no, Beijing Jinxing Ultrasonic Equipment Technology Co., Ltd. tau tsim tshwj xeeb thiab tsim cov groove tiaj tiaj hauv qab ultrasonic tu tshuab, uas yog nyiam heev los ntawm kev lag luam khoom sib nqus.
3. Kev xaiv lub zog ceev
Raws li paub zoo, cavitation tsuas yog tshwm sim thaum cov zis ultrasonic nce mus txog qee qhov kev siv. Feem ntau, lub zog qis tshaj plaws hauv dej yuav tsum siab dua {{0}}.3W/cm2. Txawm li cas los xij, yog tias lub zog ceev ntau dhau, muaj peev xwm ntxuav tau txhim kho, uas yuav ua rau kev puas tsuaj lossis cavitation kev ua haujlwm ntawm cov workpiece. Yog tias lub zog ntom ntom me me heev, kev ua haujlwm tau ntau dhau tsawg dhau, thiab txawm tias kev tu ua haujlwm tsis tau raws li cov cai. Ultrasonic tu tshuab feem ntau yog siv rau hauv kev lag luam kev lag luam, nrog lub zog ntom ntom ntawm 0.40-0.8W / cm2 thiab lub cev lub zog ntom ntom ntawm 25W / L. Qhov tshwj xeeb ultrasonic tu tshuab rau neodymium hlau boron magnetic cov ntaub ntawv tsim los ntawm Beijing Jinxing Ultrasonic Equipment Technology Co., Ltd.
4. Cov yam ntxwv ua tau zoo ntawm lub tshuab ntxhua khaub ncaws rau neodymium hlau boron magnetic cov ntaub ntawv
Kev tu ntawm neodymium hlau boron magnetic cov ntaub ntawv yuav tsum muaj kev ua tau zoo ntawm ultrasonic tu khoom, uas tsis yog feem ntau siv nyob rau hauv lub tshuab ua kev lag luam vim muaj tej yam xws li batch loj, ntev txheej txheem, hnyav ib puag ncig nyob rau hauv electroplating rhiav, thiab hnyav ntau lawm tej yam kev mob. Cov teeb meem technical nyob hauv:
(1) Kev hloov pauv loj. Vim yog phau ntawv ua haujlwm ntawm cov txheej txheem ntxuav, tus naj npawb ntawm workpieces muab tso rau hauv lub tank, qib dej, thiab tib neeg yam tseem ceeb yog qhov tsis txaus ntseeg, thiab kev hloov pauv feem ntau tseem ceeb. Qhov no yuav tsum tau hais tias cov cuab yeej tu ultrasonic tuaj yeem ua haujlwm ruaj khov nyob rau hauv cov khoom sib txawv, thiab lub peev xwm tu yuav tsum tsis txhob hloov ntau dhau.
(2) Lub tank ntxuav yog ntiav. Lub tank tu ntiav yooj yim rau kev ua haujlwm tu, tab sis cov kua qis feem ntau ua rau cov khoom siv ultrasonic ua haujlwm nrog lub zog ntau dhau. Cov neeg ua haujlwm feem ntau sim txuag lub sijhawm los ntawm kev tsis txiav tawm lub zog thaum lub sijhawm ua kua, ua rau cov khoom siv khiav tsis muaj kua rau lub sijhawm luv luv, ua rau muaj ntau dhau ntawm lub tshuab ntxuav tank steel phaj, kev ntxhov siab sab hauv siab tshaj qhov qaug zog ntawm lub zog. cov khoom, thiab tsim microcracks hauv cov hlau phaj. Thaum xws li microcracks tshwm sim, nyob rau hauv qhov kev txiav txim ntawm ultrasonic kev co, cov kab nrib pleb yuav maj mam nthuav thiab ua rau cov hlau phaj tawg. Txhawm rau zam qhov xwm txheej no, kev ntsuas tshwj xeeb yuav tsum tau ua hauv kev tsim qauv ntawm cov khoom siv.
(3) Cov kua qaub huab cua thiab qhov chaw ntub dej hauv qhov chaw ua haujlwm electroplating muaj qhov cuam tshuam loj rau cov khoom siv. Acid pos huab thiab av noo tuaj yeem yooj yim ua rau corrosion thiab luv luv Circuit Court hauv hluav taws xob cov khoom siv ultrasonic.
Yuav kom hloov mus rau txoj kev tu thiab kev ua haujlwm ntawm neodymium hlau boron magnetic cov ntaub ntawv, cov kev xav tau nruj dua tau muab tso rau pem hauv ntej rau kev tsim qauv, xaiv cov khoom siv, thiab tsim cov txheej txheem ntawm ultrasonic tu khoom.