Tam sim no, ob qho tag nrho cov hluav taws xob teeb hluav taws xob teeb thiab thaj hluav taws xob teeb teeb yuav tsum tau reflow soldered, yog li cov teeb cig teeb tuaj yeem dhau los ntawm 240 ° C kub.
LED teeb hlaws reflow soldering yuav tsum tau tsim rau qhov kub ntawm reflow soldering, txwv tsis pub nws yooj yim ua rau qhov tsis tuaj yeem tsis pom kev tuag ntawm qhov teeb meem tuag ntawm qhov teeb roj teeb. Tom qab ntawd yuav ua li cas thiaj LED reflow tsis ua kom poob zoo li tsis tsim nyog. Jing Chonghong piav rau nws rau txhua tus neeg ntawm no.
Ua ntej, LED hluav taws xob reflow soldering kub nkhaus yuav tsum tau kho tom qab thawj pawg thawj coj tau lees tias tom qab ntau cov lus pom zoo. Nov yog thawj zaug kev lees paub nyob rau hauv lub Hoobkas tswjhwm zoo.
Thib ob, LED reflow soldering yuav tsum tau ua ua ntej vuam ua hauj lwm kom pom cov LED teeb hlaws Hoobkas kev teeb txheeb, pom nws ntau yam kev tsis raug.
1, txhawm rau pom qhov kub siab tiv taus ntawm LED teeb hlaws ntim cov khoom ntim;
2, nyob ntawm LED vuam substrate yog dab tsi cov khoom siv, xws li cov khoom siv hluav taws xob (PCB fiberboard, thiab lwm yam), aluminium substrate, ceramic phaj, thiab lwm yam.;
3, txhawm rau pom cov tshuaj pleev, yog kub lossis kub kub me me muab tshuaj txhuam, lossis ntxau;
4, raws li qhov tseeb ua tau zoo ntawm LED reflow soldering cov cuab yeej, saib cov naj npawb ntawm LED reflow soldering tsam, tus nqi ntws txaus, kiv cua, kub tswj ntawm txhua cheeb tsam thiab lwm yam tsis muaj.
Thib peb, LED reflow soldering LED teeb hlaws dai dav dav dav dav siv tau kho siv
Qhov ntsuas kub tsawg kawg yog 150-170 degrees, qhov kub siab tshaj plaws yog dua li 240-245 degrees (nce txog 260, yog tias 245 degrees yuav yaj tau tin, tsis kho kom haum rau 260), lub sijhawm siab tshaj 220 degrees tsis tuaj yeem tshaj 60 vib nas this, Yog tias qhov kub tau nce siab, 260 degree sijhawm tsis dhau 10 vib nas this. Yog tias nws yog 7 qhov kub thiab txias, thov xa mus rau cov chaw hauv qab no: 160, 170, 175, 180, 190, 210, 245, 220. Yog tias lub teeb taws hlaws LED yog tsom iav silicone, koj tuaj yeem siv BI58SN42 solder paste, qhov siab tshaj plaws kub yog 225 degrees Celsius. Yog tias nws yog PC lub lens, reflow soldering yuav siv tsis tau txhua.
Yeej, qhov no yog qhov kev piav qhia dav dav ntawm lub teeb hlaws dai dua reflow soldering.