5050 Bright LED Chip
Lub pob loj ntawm 5050 LED teeb nti yog 5.0 * 5.0 * 1.6mm. Lub 5050 LED teeb nti tau txais peb -cov tub ntxhais sib luag tsim thiab tswj nws tus kheej. 5050 dawb lub teeb ci tuaj yeem kho nrog xim kub (2000-25000K), thiab feem ntau yog ntim nrog cov chips xws li Sanan, Jingyuan, thiab CREE. Hongfucheng Optoelectronics 5050 LED teeb chips muaj cov yam ntxwv ntawm kev ua haujlwm siab luminous, qis attenuation, tsawg tshav kub tiam, siab stability, thiab noo noo{15}} pov thawj qib MSL2a. 5050 LED teeb chips tau ntim nrog cov lus txhais ib puag ncig zoo silicone, uas ua raws li EU ROHS tus qauv.
Tom ntej no, cia peb tham txog dab tsi yuav tsum tau them sai sai rau thaum siv 5050 LED teeb chips. Khoom dehumidification: Txij li thaum SMD cov khoom nqus dej noo thiab ua rau cov dej vapor evaporate thiab nthuav dav thaum lub sij hawm siab - vuam kub, nws yog ib qho yooj yim los ua tev, thiab cov hlau kub txuas cov nti thiab lub bracket yuav tawg. Yog li ntawd, cov neeg siv khoom yuav tsum ntxuav lub pob ua ntej siv thiab ci ntawm 65-70 degrees. Ci rau ntau tshaj 12 teev thiab tom qab ntawd qhib nws. Tom qab qhib lub pob, qhov vuam yuav tsum ua kom tiav hauv lub sijhawm ceev, thiab nws yuav tsum tsis pub tshaj 24 teev. Yog tias nws dhau 24 teev, nws yuav tsum tau dehumidified dua. 15 H Bulk Ci: 130-150 degrees / 2-3 teev).
SMT thaj: cov neeg siv khoom yuav tsum sim xaiv lub nozzle loj dua qhov luminous nto ntawm SMD (colloid) thaum SMT patching, tiv thaiv kev puas tsuaj rau cov hlau kub hauv lub teeb nti tshwm sim los ntawm qhov chaw tsis raug ntawm lub nozzle nias qhov siab, thiab lub nozzle nias. qhov siab thaum lub sij hawm SMT Nws kuj tseem yuav cuam tshuam qhov zoo ntawm lub teeb nti. Vim tias lub tshuab nqus tsev nqus tau nias ntau dhau, nws yuav ua rau lub teeb nti colloid thiab ua rau cov hlau hauv kub kom deform lossis tawg, ua rau lub teeb nti tsis ci lossis flickering thiab teeb meem zoo. Xaiv qhov tsim nyog suction nozzle yog tus yuam sij rau kev muab cov khoom zoo. qhov twg.
Kev tuav vuam: Nws raug nquahu kom siv qhov ntsuas kub tsis tu ncua thiab cov hlau tin ntawm<0.5mm to="" control="" the="" temperature="" within="" 10="" degrees.="" the="" welding="" time="" of="" a="" single="" lamp="" chip="" should="" not="" exceed="" 3="" seconds.="" during="" the="" welding="" process,="" because="" the="" colloid="" is="" in="" a="" high="" temperature="" state,="" do="" not="" press="" the="" surface="" of="" the="" colloid,="" and="" do="" not="" give="" apply="" pressure="" on="" the="" led="" pins,="" let="" the="" tin="" wire="" melt="" naturally="" and="" combine="" with="" the="" pins.="" be="" careful="" not="" to="" use="" hard="" objects="" and="" objects="" with="" sharp="" edges="" to="" scrape,="" paint,="" and="" press="" the="" surface="" of="" the="" gel,="" which="" will="" easily="" lead="" to="" the="" deformation="" of="" the="" direct="" internal="" gold="" wire.="" causes="" dead="" lights.="" (mass="" production="" cannot="" be="" hand-welded="" because="" the="" quality="" of="" hand-welded="" is="">
Reflow soldering: SMT thaj ntau lawm yuav tsum tau rau ntau lawm. Qhov pom zoo melting point ntawm solder paste yog qis dua 220 degrees. Nws yog qhov zoo tshaj plaws los siv reflow soldering nyob rau hauv yim qhov chaw kub. Qhov kub siab tsis tuaj yeem tshaj 240 degrees, thiab lub sijhawm siab tshaj yog tsawg dua 10S. Thaum ua tiav, lub teeb chips tsis tuaj yeem rov qab ntau dua ob zaug. Ntau reflow soldering yog kev puas tsuaj rau cov khoom. Lub teeb chips yuav tsum tsis txhob raug kho tom qab reflow soldering. Txawm li cas los xij, nws yuav tsum tau lees paub ua ntej tias txoj kev no yuav lossis yuav tsis ua rau cov yam ntxwv ntawm LED nws tus kheej.
Kev tiv thaiv- ntsuas qhov zoo li qub: Lub tshuab uas muaj kev sib cuag nrog cov khoom thaum siv yuav tsum tau cog lus nrog cov xov hlau. Lub workbench yuav tsum tau grounded nrog ib tug conductive ncoo los ntawm ib tug resistor. Lub soldering hlau ntawm lub workbench yuav tsum tau grounded. Tus neeg teb xov tooj yuav tsum hnav lub nplhaib electrostatic, cov khaub ncaws electrostatic, thiab lwm yam. Nws raug nquahu kom siv lub tshuab hluav taws xob ionized.
Kev tshuaj xyuas cov khoom: Benwei xa cov khoom, thov ua qhov kev tshuaj xyuas tuaj. Yog tias muaj teeb meem, thov muab cov lus teb rau lub sijhawm. Ua ntej pawg ntau lawm, thov sim ua cov khoom me me. Yog tias tsis muaj teeb meem, ces huab hwm coj ntau lawm. Thawj qhov kev xaiv tsis tuaj yeem tshaj tag nrho cov batch. 10 feem pua.
