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Yuav luag txhua daim ntawm Printed Circuit Board (PCB) muaj ntau dua lossis tsawg dua cov txheej txheem cim. Qhov ntawd yog vim tias cov ntaub ntawv luam tawm ntawm PCB tuaj yeem ua tiav lub luag haujlwm ntawm kev tswj xyuas zoo, kev txheeb xyuas tsis siv neeg thiab kev txhawb nqa hom. Cov ntaub ntawv no tau luam tawm los ntawm cov tshuab luam ntawv ib txwm muaj. Tab sis cov tshuab luam ntawv ib txwm siv ntau yam khoom siv uas tuaj yeem ua rau muaj kuab paug yooj yim. Thiab cov ntaub ntawv uas lawv luam tawm ploj mus raws li lub sijhawm dhau mus, uas tsis pab tau zoo.
Tab sis rau lub tshuab cim laser, cov teeb meem ntawd tsis yog teeb meem lawm. Lub tshuab cim laser muaj cov txheej txheem ua tsis sib cuag, ceev ceev, tsis muaj cov khoom siv thiab tsis muaj kuab paug. Nws tuaj yeem ua tiav cov cim meej heev, raug thiab kav ntev ntawm cov hom me me txog li 3x3 hli. Dhau li ntawm qhov ntawd, vim nws tsis muaj kev sib cuag ncaj qha, nws yuav tsis ua rau PCB puas tsuaj.
Cov tshuab cim PCB laser feem ntau siv CO2 laser thiab UV laser. Hauv cov qauv teeb tsa zoo ib yam, UV laser cim tshuab muaj qhov tseeb dua li CO2 laser cim tshuab. Lub wavelength ntawm UV laser yog nyob ib ncig ntawm 355nm thiab feem ntau ntawm cov ntaub ntawv tuaj yeem nqus tau lub teeb UV laser zoo dua li lub teeb infrared. Tsis tas li ntawd, CO2 laser yog hom kev ua kom sov kom paub txog qhov cuam tshuam cim. Yog li ntawd, carbonization yooj yim tshwm sim, uas ua rau muaj kev phom sij rau cov ntaub ntawv tseem ceeb ntawm PCB. Ntawm qhov tsis sib xws, UV laser yog "kev ua kom txias", vim nws paub txog qhov cuam tshuam cim los ntawm kev rhuav tshem cov tshuaj sib txuas ntawm UV laser lub teeb. Yog li ntawd, UV laser yuav tsis ua rau PCB puas tsuaj.
Raws li peb paub, PCB me me heev thiab cov ntaub ntawv cim rau nws tsis yooj yim. Tab sis UV laser tswj kom ua nws raws li qhov tseeb. Qhov no tsis yog tsuas yog los ntawm qhov tshwj xeeb ntawm UV laser cim tshuab tab sis kuj yog lub kaw lus txias uas nws los nrog. Lub kaw lus txias meej yog qhov tseem ceeb heev hauv kev tswj qhov kub ntawm UV laser kom UV laser tuaj yeem ua haujlwm tau zoo hauv lub sijhawm ntev. S&A Teyu compact chiller unit CWUL-05 feem ntau siv rau kev txias UV laser cim tshuab hauv PCB cim. Lub chiller no muaj qhov ruaj khov kub 0.2 ℃, uas txhais tau tias qhov kub hloov pauv me me. Thiab qhov hloov pauv me me txhais tau tias cov zis laser ntawm UV laser yuav ruaj khov. Yog li ntawd, cov nyhuv cim tuaj yeem lav. Tsis tas li ntawd, CWUL-05 compact dej chiller unit me me heev, yog li nws tsis siv ntau qhov chaw thiab tuaj yeem yooj yim haum rau hauv lub tshuab layout ntawm PCB laser cim tshuab.
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