Sealing pin welding yog txheej txheem sealing kawg rau cov roj teeb square. Kev vuam tsis zoo tuaj yeem cuam tshuam rau kev ua haujlwm ntawm tes thiab tseem ua rau electrolyte to, ua rau muaj teeb meem loj lithium-ion roj teeb kev nyab xeeb.
I. Dab tsi yog hom "kev vuam tsis zoo"?
1. Welding tsis txaus / False Vuam: Tsis muaj zog vuam tsis txaus; lub interface yog tsis tiag fused. Nws tuaj yeem yooj yim pried ntawm tes los yog nrog ib lub cuab yeej.
2. Sparking/Splattering: Cov nplaim taws raug tsim tawm thaum lub sij hawm vuam, ua rau cov khoom hlau tawg. Qhov no tuaj yeem cuam tshuam rau lub cell thiab muaj feem cuam tshuam rau qhov sib cais.
3. Weld Los Ntawm: Ntau lub zog tuaj yeem vuam los ntawm tus pin sealing lossis lub nplhaib yas hauv qab, ua rau lub foob tsis ua haujlwm.
4. Kev sib sib zog nqus ntau dhau: Tshaj- vuam ua rau ntau dhau ntawm cov khoom siv sib khi, ua rau lub qhov tob tob, ua rau nws lub zog tsis muaj zog thiab cuam tshuam rau nws qhov tawg - pov thawj muaj nuj nqi.
5. Discontinuous Weld/Porosity: Tsis tiav welds nrog tawg los yog qhov ua rau tsis zoo sealing.
6. Oxidation/Blackening: Qhov chaw welded tshwm dub los yog xiav, qhia oxidation thaum lub vuam txheej txheem.
II. Systemic Cause Analysis thiab Solutions
1. Khoom siv
Sealing Nails
Kev huv huv: Cov nplaim muaj roj, hmoov av, thiab oxides. Kev ntxuav tu (xws li, ntxuav cov ntshav, ntxuav ultrasonic) yuav tsum tau ua ua ntej siv, thiab kev cia thiab hloov pauv yuav tsum tau ua kom huv hauv ib puag ncig huv.
Plating: Cov plating (feem ntau yog npib tsib xee) tsis sib npaug hauv cov tuab, tsis zoo adhesion, lossis muaj qhov tsis xws luag. Qhov no tuaj yeem ua rau tsis sib xws thaum lub sij hawm vuam, ua rau tawg los yog tsis muaj zog welds. Kev daws: Txhim kho qhov kev tshuaj xyuas cov khoom tuaj thiab siv lub tshuab ntsuas metallographic los xyuas cov plating zoo thiab tuab.
Flatness: Lub sealing ntsia hlau nws tus kheej yog qhov tsis sib xws, tsim qhov khoob thaum nws sib tw nrog lub casing.
Roj teeb Casing
Kev huv huv: Kev huv huv ntawm thaj chaw ib ncig ntawm lub qhov filling yog qhov tseem ceeb.
Khoom siv thiab Plating: Cov khoom siv thiab plating ntawm lub casing (feem ntau yog txhuas lossis hlau) yuav tsum phim cov ntsia hlau sealing. Cov ntaub ntawv tsis sib xws (xws li cov hlau tsis sib xws) yog qhov nyuaj rau vuam thiab yooj yim tsim cov nkig intermetallic compounds.
Flatness: Ib lub dav hlau tsis sib luag uas lub qhov txhaj tshuaj nyob rau hauv tiv thaiv cov ntsia hlau sealing tsis haum kiag li.
2. Cov khoom siv thiab cov khoom siv
Qhov no yog qhov teeb meem ntau tshaj plaws, tshwj xeeb tshaj yog nyob rau hauv laser vuam.
Ua ntej pib lubtsis siv neeg laser vuam tshuabTxhua hnub: Lub lens tiv thaiv thiab tsom iav tsom iav yuav tsum tau kuaj xyuas thiab ntxuav.
Tsis tu ncua Calibration: Xyuas kom meej tias lub laser tsom tau raug muab tso rau ntawm qhov chaw ua haujlwm (lossis me ntsis offset raws li cov txheej txheem yuav tsum tau ua).
Siv lub vuam chaw saib xyuas qhov system: Saib xyuas qhov chaw laser zoo hauv lub sijhawm.
Lub zog tsis ruaj khov: Laser fais fab attenuation thiab cov zis tsis ruaj khov.
Kev daws: Tsis tu ncua siv lub ntsuas hluav taws xob los kuaj xyuas qhov tseeb laser tso zis zog thiab ntsuas nws.
Tsis zoo Waveform/Pulse Settings: Pulse welding feem ntau yog siv rau sealing ntsia thawv vuam. Kev daws: Ua kom zoo tshaj plaws ntawm cov mem tes waveform (piv txwv li, maj mam nce thiab ntog waveform tuaj yeem txo qhov tawg), lub zog, zaus, thiab mem tes dav. Lub zog pib yuav tsum tsis txhob siab dhau; siv ntau- ntu vuam txheej txheem qee zaum ua tau zoo dua.
Txoj kev kho qhov muag tsis zoo / Kev tsom xam tsis raug: Qhov no yog ib qho ua rau tsis sib xws ntawm cov welds thiab lub zog muaj zog.
Vuam Ceev: Kev kub ceev heev ua rau muaj kev nkag mus tsis txaus (cov vuam tsis raug), thaum qhov qis qis ua rau muaj cua sov ntau dhau (hlawv- dhau, dent).
3. Cov txheej txheem txheej txheem
Tooling thiab Fixtures
Match Clearance: Qhov no yog qhov tseem ceeb. Qhov haum clearance ntawm lub sealing pin thiab lub roj teeb casing lub electrolyte filling qhov yuav tsum tau nruj me ntsis tswj (feem ntau nyob rau hauv 0.05mm). Kev tshem tawm ntau dhau ncaj qha ua rau hlawv - los ntawm cov vuam tsis tiav.
Clamping Force: Thaum lub sij hawm vuam, yuav tsum tau siv lub zog sib xws thiab tsim nyog los nias lub sealing tus pin kom ruaj khov rau hauv lub casing. Lub siab tsis txaus yuav tsim qhov khoob, thaum lub siab ntau dhau yuav ua rau deformation ntawm lub casing lossis tus pin sealing.
Concentricity: Lub fixture yuav tsum xyuas kom meej zoo sib xws ntawm lub sealing tus pin thiab lub laser beam. Kev daws: Tsim siab -precision contouring fixtures thiab tsis tu ncua xyuas qhov hnav ntawm fixtures.
Vuam txheej txheem Specifications
Parameter Qhov rai qhov nqaim dhau lawm: Tsim cov txheej txheem vuam txheej txheem parameter qhov rai (piv txwv li, qhov pom tau ntawm txhua qhov ntsuas) uas nqaim dhau yuav ua rau muaj qhov tsis xws luag txawm tias muaj kev hloov pauv me ntsis thaum lub sijhawm tsim khoom. Kev daws: Nrhiav lub qhov rais txheej txheem dav thiab ruaj khov los ntawm kev tsim kev sim ntau yam (DOE).
Tsis Muaj Kev Saib Xyuas Txheej Txheem: Kev cia siab rau kev tshaj tawm nkaus xwb- kev tshuaj xyuas vuam tsis tuaj yeem kuaj pom muaj teeb meem hauv lub sijhawm. Kev daws: Qhia vuam txheej txheem kev soj ntsuam cov tshuab, xws li PLS (Pulse Surface Mount System) thiab infrared thermal imagers, los saib xyuas lub zog hloov pauv thiab qhov kub thiab txias profiles ntawm txhua qhov vuam taw tes ntawm lub sijhawm, thiab tam sim ntawd ceeb toom thaum kuaj pom qhov tsis txaus ntseeg.
4. Kev ntsuas thiab tshuaj xyuas
Cov qauv tshuaj xyuas tsis meej: Tsis muaj cov qauv tshuaj ntsuam xyuas kom meej thiab muaj nuj nqis (piv txwv li, tso cai qhov tob ntawm indentation, qauv rau pore txoj kab uas hla thiab qhov ntau, thiab lwm yam).
Kev Ntsuam Xyuas Kev Ua Phem: Tsis tu ncua ua kua muag tshuaj ntsuam xyuas (tshem cov welded sealing pins los xyuas qhov loj thiab cov duab ntawm cov weld nugget), uas yog txoj hauv kev ncaj qha tshaj plaws los xyuas qhov zoo ntawm qhov vuam.
Tsis yog-Kev kuaj kev puas tsuaj:
Kev Tshuaj Xyuas Kev Pom Zoo: Siv lub tshuab tsom iav los tshuaj xyuas qhov tsos, xim, thiab txuas ntxiv ntawm cov vuam.
Kev Ntsuas Huab Cua: Qhov no yog ib qho yuav tsum tau soj ntsuam cov khoom . 100}% ntawm cov roj teeb hlwb raug kuaj xyuas helium los xyuas kom meej airtightness. X-Ray Inspection: Tso cai saib cov porosity sab hauv, tawg, thiab weld qhov tob.
hais txog US
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