1. Vuam hom
Feem ntau, vuam tuaj yeem muab faib ua peb hom: hluav taws xob soldering hlau vuam, cua sov platform vuam thiab reflow soldering vuam:
a: Feem ntau txoj kev yog hluav taws xob soldering, xws li shaping thiab kho cov khoom siv hluav taws xob.Niaj hnub no, cov tuam txhab LED, txhawm rau txuag lawv cov nqi tsim khoom, feem ntau siv cov khoom cuav thiab cov khoom siv hluav taws xob tsis zoo, ua rau muaj kev sib cuag tsis zoo thiab qee zaum xau.Thaum lub sij hawm welding txheej txheem, qhov no yog sib npaug rau tsim ib tug Circuit Court ntawm lub leaking soldering hlau taub - lub soldered LED - tib neeg lub cev - thiab lub ntiaj teb, uas yog hais tias, lub voltage uas yog kaum mus rau pua pua lub sij hawm ntau tshaj li qhov voltage borne. los ntawm lub teeb hlaws yog siv rau LED teeb hlaws, tam sim hlawv lawv tawm.
b: Lub teeb tuag tshwm sim los ntawm kev vuam ntawm lub tshuab cua sov tau dhau los ua cov cuab yeej tsim khoom zoo tshaj plaws rau cov lag luam feem ntau txhawm rau ua kom tau raws li qhov xav tau ntawm cov khoom me me thiab cov qauv txiav txim vim muaj cov naj npawb ntawm cov qauv teeb tsa tas li.Vim yog qhov zoo ntawm cov khoom siv qis, cov qauv yooj yim thiab kev ua haujlwm, lub tshuab cua sov tau dhau los ua cov cuab yeej tsim khoom zoo tshaj plaws, Vim yog siv ib puag ncig (xws li qhov teeb meem ntawm qhov kub thiab txias hauv cheeb tsam nrog cov kiv cua), kev ua haujlwm zoo ntawm cov neeg ua haujlwm vuam, thiab kev tswj ntawm vuam ceev, muaj teeb meem loj ntawm cov teeb tuag.Tsis tas li ntawd, muaj cov av ntawm cov khoom siv cua sov platform.
c: Reflow soldering yog feem ntau txhim khu kev qha ntau lawm txoj kev, uas yog haum rau loj ntau lawm thiab ua.Yog tias kev ua haujlwm tsis raug, nws yuav ua rau muaj teeb meem loj dua, xws li kev hloov pauv tsis tsim nyog, lub tshuab tsis zoo hauv av, thiab lwm yam.
2. Cia ib puag ncig ua rau lub teeb tuag
Qhov no feem ntau tshwm sim.Thaum peb qhib lub pob, peb tsis xyuam xim rau kev ntsuas dej-pov thawj.Feem ntau ntawm cov hlaws dai ntawm lub khw tam sim no raug kaw nrog silica gel.Cov khoom no yuav nqus dej.Thaum lub teeb hlaws raug cuam tshuam nrog noo noo, silica gel yuav thermal expansion tom qab kub kub vuam.Cov hlau kub, nti thiab bracket yuav deformed, ua rau kev hloov pauv thiab tawg ntawm cov hlau kub, thiab lub teeb qhov chaw yuav tsis ci, Yog li ntawd, nws raug nquahu kom khaws cov LEDs hauv qhov chaw qhuav thiab qhov cua, nrog rau qhov ntsuas kub ntawm - 40 ℃ - + 100 ℃ thiab txheeb ze av noo tsawg dua 85%;Nws raug nquahu kom siv cov LED hauv nws qhov kev ntim khoom qub hauv 3 lub hlis kom tsis txhob xeb ntawm lub bracket;Tom qab lub hnab ntim LED qhib, nws yuav tsum tau siv kom sai li sai tau.Nyob rau lub sijhawm no, qhov kub thiab txias yog 5 ℃ -30 ℃, thiab cov txheeb ze av noo qis dua 60%.
3. Tshuaj ntxuav
Tsis txhob siv cov kua tshuaj tsis paub los ntxuav LED, vim nws tuaj yeem ua rau lub ntsej muag ntawm LED colloid thiab txawm ua rau cov kab nrib pleb.Yog tias tsim nyog, thov ntxuav nrog dej cawv hauv chav tsev kub thiab qhov cua qhov chaw, nyiam dua li ntawm ib feeb tom qab cua ua tiav.
4. Deformation ua rau lub teeb tuag
Vim yog deformation ntawm qee lub teeb vaj huam sib luag, cov neeg ua haujlwm yuav raug phais yas.Raws li cov panels deform, lub teeb hlaws dai ntawm lawv kuj deform ua ke, rhuav cov hlau hlau thiab ua rau lub teeb tsis teeb.Nws raug nquahu kom ua kev phais yas ua ntej ntau lawm rau hom vaj huam sib luag no.Kev sib dhos ntev thiab tuav thaum tsim khoom kuj tuaj yeem ua rau deformation thiab tawg ntawm cov hlau kub.Tsis tas li ntawd, nws yog tshwm sim los ntawm stacking.Txhawm rau kom yooj yim rau cov txheej txheem tsim khoom, lub teeb vaj huam sib luag yog random stacked.Vim lub ntiajteb txawj nqus, txheej qis ntawm lub teeb hlaws yuav raug deformed thiab ua rau cov hlau kub puas.
5. Cov qauv hluav taws xob hluav taws xob, lub zog hluav taws xob, thiab lub teeb lub teeb tsis sib xws
Vim tsis tsim nyogfais fab movtsim los yog xaiv, cov khoom siv hluav taws xob tshaj qhov siab tshaj plaws uas LED tuaj yeem tiv taus (dhau tam sim no, cuam tshuam tam sim no);Cov qauv hluav taws xob tsis tsim nyog ntawm cov teeb pom kev zoo tuaj yeem ua rau lub teeb tuag thiab lub teeb pom kev ntxov ntxov.
6. Hoobkas grounding
Nws yog ib qho tsim nyog yuav tsum xyuas seb tag nrho cov xaim hauv av ntawm lub Hoobkas puas zoo
7. Cov hluav taws xob zoo li qub
Cov hluav taws xob zoo li qub tuaj yeem ua rau LED ua haujlwm tsis ua haujlwm, thiab nws raug pom zoo kom tiv thaiv ESD los ntawm kev puas tsuaj rau LED.
A. Thaum lub sij hawm kuaj LED thiab sib dhos, cov neeg ua haujlwm yuav tsum hnav cov kauj-toog npab thiab cov hnab looj tes tiv thaiv zoo li qub.
B. Cov khoom siv vuam thiab kuaj, cov rooj ua haujlwm, cov racks cia, thiab lwm yam yuav tsum tau ua kom zoo.
C. Siv lub tshuab hluav taws xob ion los tshem tawm cov hluav taws xob zoo li qub uas tsim los ntawm kev sib txhuam thaum lub sij hawm LED cia thiab sib dhos.
D. Lub thawv khoom siv rau kev txhim kho LED txais cov khoom siv tiv thaiv zoo li qub, thiab lub hnab ntim khoom siv lub hnab electrostatic.
E. Tsis txhob muaj lub siab xav thiab kov lub LED casually.
Cov xwm txheej txawv txav uas LED puas tsuaj los ntawm ESD suav nrog:
A. Kev thim rov qab tuaj yeem ua rau txo qis hauv qhov pom kev me me, thiab lub teeb yuav tsis tig rau thaum mob hnyav.
B. Tus nqi hluav taws xob rau pem hauv ntej txo qis.LED tsis tuaj yeem tawm lub teeb thaum tsav los ntawm qhov tam sim no qis.
C. Kev vuam tsis zoo ua rau lub teeb tsis pom kev.
Post lub sij hawm: May-15-2023
