Cov xwm txheej tam sim no thiab kev txhim kho kev cia siab ntawm Laser Vuam Tshuab rau cov roj teeb fais fab

Tawm tsam keeb kwm yav dhau los ntawm txoj kev loj hlob sai ntawm kev lag luam tsheb tshiab, cov roj teeb hluav taws xob, raws li lub zog tseem ceeb ntawm tag nrho lub tsheb, ncaj qha txiav txim siab tag nrho cov tsheb ua tau zoo los ntawm lawv txoj kev nyab xeeb, kev cia siab, thiab sib xws. Los ntawm ib tug neeg lub hlwb mus rau modules thiab ces mus rau tag nrho cov roj teeb pob, vuam zoo yog ib tug ntawm cov tseem ceeb yam tseem ceeb cuam tshuam rau lub roj teeb lub neej, kev nyab xeeb kev ua tau zoo, thiab yield nyob rau hauv loj -scale manufacturing. Ntawm ntau txoj kev vuam, laser vuam, vim nws lub zog siab ceev, siab precision, thiab siab automation muaj peev xwm, tau dhau los ua cov txheej txheem tseem ceeb hauv kev tsim hluav taws xob roj teeb.

 

 

Txhawm rau ua kom tau raws li qhov xav tau ntawm kev txhim kho lub teeb yuag thiab siab - lub zog ceev hauv lub tsheb tshiab lub zog, cov ntaub ntawv aluminium alloy feem ntau yog siv rau cov khoom siv hluav taws xob hluav taws xob. Cheebtsam xws li xov tooj ntawm tes, npog, thiab busbars feem ntau siv 1-series lossis 3-series aluminium alloys, uas muaj cov khoom zoo, corrosion resistance, thiab formability. Hauv qee qhov chaw uas xav tau cov khoom siv hluav taws xob siab, cov khoom siv tooj liab lossis txhuas-tooj ​​liab yog siv.

 

Txawm li cas los xij, aluminium alloys lawv tus kheej muaj cov tshuaj lom neeg muaj zog, siab thermal conductivity, thiab siab coefficient ntawm linear expansion, thiab lawv cov nplaim yooj yim tsim cov oxide zaj duab xis, ua rau lawv muaj kev cuam tshuam rau qhov tsis xws luag xws li porosity, spatter, tawg, thiab kub tawg thaum vuam. Tsis tas li ntawd, nyob rau hauv aluminium- tooj liab cov khoom sib txawv ntawm kev sib koom ua ke, nkig intermetallic compounds tuaj yeem tsim, txo kev sib koom ua ke. Cov khoom siv no tso cov kev xav tau siab heev ntawm kev tswj lub zog, tsim kev ruaj ntseg, thiab sib xws ntawm cov txheej txheem vuam.

 

 

Kev tsim cov roj teeb fais fab feem ntau suav nrog peb theem tseem ceeb: cell, module, thiab pob. Sab nraud ntawm lub roj teeb pob feem ntau muab cov qauv kev txhawb nqa thiab kev tiv thaiv, feem ntau yog siv cov tuab aluminium alloy profiles, thiab nws cov welding feem ntau yog ua los ntawm arc vuam los yog kev sib txhuam do vuam.

 

Hauv qhov sib piv, cov khoom siv sab hauv ntawm cov hlwb thiab cov qauv yog qhov me me, muaj cov qauv meej, thiab yuav tsum tau nruj weld qhov sib nrug, ua rau nws nyuaj rau cov txheej txheem vuam ib txwm siv los sib npaug ntawm vuam zoo thiab ceev ceev. Laser welding, with its high power density, good accessibility, and non-contact processing characteristics, has become the preferred process for battery cell casings, covers, explosion-proof valves, busbars, and other components. Nws yog dav siv nyob rau hauv txhuas-cased prismatic roj teeb qauv, xws li lub hwj chim roj teeb npog daim hlau, lithium{5}} ion roj teeb npog daim hlau, thiab lithium roj teeb txhuas cov ntaub ntawv.

 

 

Roj teeb casings thiab npog feem ntau yog siv los kaw cov electrolyte thiab muab cov qauv kev txhawb nqa ruaj khov rau cov electrodes sab hauv. Qhov vuam zoo ncaj qha txiav txim siab lub roj teeb lub sealing kev ua tau zoo thiab siab tsis kam. Cov khoom siv feem ntau suav nrog Al3003 aluminium alloy, nrog lub thickness feem ntau ntawm 0.3 txog 0.5 hli. Qhov chaw no feem ntau siv cov txheej txheem sib xyaw laser lossis lub nplhaib laser vuam txheej txheem.

 

Hauv kev tsim khoom tiag tiag, cov welds no ua rau muaj qhov tsis xws luag xws li kev nkag mus tsis tiav, porosity, vau, thiab spatter. Los ntawm rationally tswj lub tshav kub input, vuam ceev, thiab laser zog faib, qhov tob tob yuav ua tau zoo stabilized, thiab lub siab kuj yuav tsum tau ntsib. Nrog rau kev txhim kho thev naus laus zis, pulse waveform modulation thiab nruam siab - laser vuam tau maj mam dhau los ua cov ntsiab lus tseem ceeb, txhim kho kev ua haujlwm zoo thaum txhim kho weld uniformity.

 

Txhawm rau txhim kho qhov zoo ntawm cov vuam, galvanometer scanning vuam thiab laser oscillation thev naus laus zis tau nkag mus rau hauv roj teeb casing vuam. Dynamic stirring ntawm molten pas dej ua ke accelerates npuas khiav thiab refines lub grain qauv, yog li txhim kho cov neeg kho tshuab zog thiab sealing kev cia siab ntawm lub weld sib koom tes. Cov txheej txheem no tau siv dav hauv kev tsim cov khoom siv xws li prismatic cell aluminium shells thiab txhuas roj teeb npog.

 

 

Explosion-cov pov thawj li qub yog cov khoom tseem ceeb hauv lub tshuab hluav taws xob kev nyab xeeb. Thaum lub siab sab hauv ntawm lub roj teeb txawv txav nce, tswj kev tawg tawm cov pa tawm, tiv thaiv thermal runaway thiab tawg. Kev tawg-cov pov thawj li qub feem ntau yog ua los ntawm cov ntawv txhuas ntshiab, tsuas yog 0.08-0.1 hli tuab, thiab yog qhov tsis tshua muaj siab rau vuam cov khoom siv hluav taws xob.

 

Thaum lub sij hawm laser welding, lub zog ntau dhau tuaj yeem ua tau yooj yim ua rau overheating thiab perforation ntawm qhov tawg - pov thawj valve, thaum cov pa phem tawm ntawm lub pas dej ua ke tuaj yeem ua rau lub qhov dej tsis zoo. Los ntawm optimizing lub laser waveform tsim, qhia ib tug luv luv - lub sij hawm ncov tus nqi ntawm thawj theem ntawm welding los txhim kho cov khoom nqus, thiab maj mam txo lub zog tso zis nyob rau hauv cov theem tom ntej, hlawv - los ntawm yuav tsum tau zam kom zoo thaum lub weld kev ncaj ncees.

 

Tsis tas li ntawd, ntxiv dag zog rau ua ntej- vuam tu kom txo tau cov roj seem thiab cov dej noo, thiab tswj cov khoom sib dhos los ntawm cov txheej txheem vuam tsim nyog, yog ib qho tseem ceeb los txo cov porosity tsis xws luag. Cov txheej txheem optimization ntsuas tau ua tiav hauv cov qauv xws li Lithium Battery Top Cap anthe d top hau rau prismatic roj teeb hlwb.

 

 

Nrog rau kev nthuav dav sai ntawm lub tsheb tshiab lub zog thiab lub zog cia kev lag luam, qhov kev thov rau siab - sib xws thiab siab - kev ntseeg tau ntawm vuam txheej txheem rau cov roj teeb hluav taws xob txuas ntxiv nce ntxiv. Kev txhim kho yav tom ntej ntawm laser vuam tshuab feem ntau tsom rau cov hauv qab no:

 

First, the application of laser sources with higher power density and more precise energy control to meet the welding needs of thinner and more complex structures; Thib ob, kev saib xyuas online thiab kaw- voj tswj ntawm cov txheej txheem vuam los txhim kho vuam kev ruaj ntseg los ntawm qhov tiag- lub sijhawm tshawb pom ntawm lub pas dej molten; thiab thib peb, kev ua kom zoo dua rau kev koom nrog cov khoom sib txawv xws li txhuas thiab tooj liab kom tau raws li kev xav tau ntawm cov qauv roj teeb tshiab thiab cov khoom siv sib xyaw xws li tooj liab thiab Aluminium Bimetal Bipolar Phaj.

 

Lub caij no, nrog rau kev siv ntau ntxiv ntawm cov qauv roj teeb prismatic hauv lub tsheb tshiab, kev tsim qauv thiab loj - nplai daim ntawv thov ntawm laser vuam txheej txheem rau cov khoom xws li txhuas alloy prismatic roj teeb rooj plaub, roj teeb txhuas vaj tse, thiab rechargeable aluminium shells yuav dhau los ua ib qho tseem ceeb ntawm kev lag luam evolution hauv kev lag luam.

 

 

Laser vuam tshuab tau sib sib zog nqus rau hauv tag nrho cov txheej txheem ntawm lub hwj chim roj teeb tsim, muab kev txhawb nqa tseem ceeb rau kev ua tiav kev nyab xeeb siab, siab sib xws, thiab kev ua haujlwm siab. Nrog rau kev hloov pauv tas mus li ntawm cov khoom siv, kev tsim qauv, thiab kev tsim cov pace, laser vuam yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb hauv kev lag luam.aluminium- cov roj teeb uas muaj zogthiab yuav ua kom pom dav dua qhov kev cia siab rau yav tom ntej kev lag luam hluav taws xob tshiab.