Reflow qhov cubyog siv rau vuam ntawm SMT Cheebtsam ntawm Circuit Court board vuam cov khoom siv ntau lawm, yog kev vam khom rau cua sov cua sov convection ntawm cov ntawv luam tawm Circuit Court solder muab tshuaj txhuam yog cov muab tshuaj txhuam ntawm cov sib koom ua ke, kom yaj ua kua tin solder muab tshuaj txhuam kom ua SMT Cheebtsam thiab Circuit Court cam vuam vuam ua ke, tom qab ntawd rov qab reflow ovencools solder pob qij txha, cam muab tshuaj ntawm colloidal lub cev cov tshuaj tiv thaiv nyob rau hauv tej yam siab kub cua rau SMT txheej txheem vuam nyhuv.
Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog kev ua haujlwm ua haujlwm ntawm reflow soldering:
Vim tias qhov kev xav tau txuas ntxiv ntawm cov hluav taws xob tsis tu ncua ntawm hluav taws xob PCB lub rooj tsavxwm, qhov zoo li ntawm daim ntawv thiab cov khoom siv, cov txheej txheem vuam tsoos tsis muaj peev xwm ua kom tau raws li qhov xav tau. Hauv qhov sib xyaw ua ke Circuit board board tau txais yuav rov qab los ua ke, cov teeb tsa sib dhos vuam feem ntau nti capacitors, nti inductor, SMT transistor thiab diode thiab lwm yam, nrog rau kev txhim kho SMT tag nrho cov tshuab txhim kho, qhov tshwm sim ntawm ntau yam ntawm SMT cov khoom hauv SMT Cheebtsam, ua ib feem ntawm SMT thev naus laus zis tshuab thev naus laus zis txheej txheem thev naus laus zis thiab cov cuab yeej siv tau nthuav dav rau qhov sib thooj nws cov ntawv thov tau ntau dua thiab ntau dua, yuav luag tau thov nyob rau hauv cov khoom siv hluav taws xob txhua qhov.
Reflow soldering yog kom paub cov neeg kho tshuab thiab hluav taws xob sib txuas ntawm cov cam kawg lossis tus pin ntawm cov khoom sib dhos saum npoo thiab cov PCB solder ncoo los ntawm kev rov muab cov ntawv lo rau cov roj nplaum ua kom paub tseeb ntawm cov PCB ham ncoo. Reflow soldering yog kom weld lub Cheebtsam rau PCB pawg thawj coj saib, thiab reflow soldering yog saum npoo cov khoom siv. Reflow soldering yog ua raws li lub luag haujlwm ntawm cov huab cua kub txaus rau ntawm cov pob qij txha txuas, colloidal flux hauv qhov ntsuas kub siab airflow nyob rau hauv kev tawm tsam lub cev kom ua tiav SMD vuam; Nws yog hu ua" reflow soldering" vim tias cov pa kis mus los ntawm qhov txuas uas tsim tawm los ua cov kub siab rau lub hom phiaj vuam.
Txoj cai ua haujlwm ntawm reflow soldering tau muab faib ua cov theem hauv qab no:
I. Thaum cov PCB nkag mus rau hauv qhov chaw ua haujlwm cua sov, cov kuab tshuaj thiab cov pa hauv qhov quav yaj ua kom yaj. Nyob rau tib lub sijhawm, flux nyob rau hauv solder muab tshuaj txhuam ntawm lub plhaw thiab cov pins ntawm cov tivthaiv xaus, qhov muab tshuaj txhuam cov phom muag muag, tsaus muag thiab npog cov ntaub qhwv, cais cov ntaub thiab cov pins ntawm cov khoom siv los ntawm oxidation.
II.When tus PCB nkag mus rau hauv thaj chaw rwb thaiv tsev, PCB thiab cov khoom siv yuav tsum tau ua tiav kom muaj kev tiv thaiv kom tsis txhob ua rau PCB thiab cov khoom sib dhos ua kom puas thaum lub PCB dheev nkag mus rau hauv qhov chaw siab kub.
III.When PCB nkag mus rau hauv thaj chaw vuam, qhov kub nce ceev ceev kom cov ntawv ci ham nce mus txog lub xeev molten. Cov kua ua kua ntub dej, tawm txawv, tawm los yog rov qab sib tov ntawm cov tshuaj sib tov ntawm cov kab nrig ntawm PCB thiab kawg cov xaum ntawm cov khoom siv.
IV.When lub PCB nkag rau hauv qhov chaw txias txias kom ua kom cov pob qij txha ua tiav, cov txheej txheem reflow welding tau ua tiav.
Tom qab cov muab tshuaj txhuam cov ntawv luam tawm thiab pasted ntawm lub rooj tsav xwm Circuit Court ntawm SMT thaj khoom, lub rooj tsav xwm hauv Circuit Court yog tsim tom qab thauj los ntawm kev qhia kev tsheb nqaj hlau ntawm reflow soldering thiab plaub qhov kub saum toj no yog ua rau.