Cov txheej txheem los xyuas kom meej Uniform Encapsulation ntawm LED Chips nrog Epoxy Resin, txheej txheem nyuaj thiab kev daws teeb meem

 

Nrog rau txoj kev loj hlob sai ntawm LED thev naus laus zis, nws tau siv dav hauv ntau qhov chaw xws li teeb pom kev zoo, zaub, automotive electronics, thiab lwm yam. Epoxy resin, raws li cov khoom siv encapsulation feem ntau siv rau LEDs, muaj qhov zoo ntawm optical, insulating thiab mechanical zog. Txawm li cas los xij, nws tsis yog ib qho yooj yim ua hauj lwm kom ua tau zoo ib yam encapsulation ntawm LED chips nrog epoxy resin, uas yog ncaj qha ntsig txog qhov tseem ceeb ntawm kev ua tau zoo ntawm LEDs, xws li luminous uniformity, kub dissipation kev ua tau zoo thiab kev ruaj ntseg mus ntev. Yog li ntawd, nws yog ib qho tseem ceeb heev rau kev kawm yuav ua li cas los xyuas kom meej lub uniform encapsulation ntawm LED chips nrog epoxy resin thiab daws teeb meem cuam tshuam cov txheej txheem.

Cov txheej txheem los xyuas kom meej Uniform Encapsulation ntawm LED Chips nrog Epoxy Resin

(1) Precise Bracket Design

1. Tsim nyog Chip Placement Area

Thaum tsim lub bracket, cov duab thiab qhov luaj li cas ntawm qhov chaw muab tso rau hauv nti yuav tsum sib phim nrog LED nti, thiab qhov chaw yuav tsum tiaj tus thiab du. Qhov no ua rau cov epoxy resin ntws tusyees nyob ib ncig ntawm lub nti thaum lub sij hawm pouring txheej txheem, zam lub zos tsub zuj zuj los yog voids. Piv txwv li, siv high-precision pwm los tsim lub bracket kom ntseeg tau tias qhov tseeb qhov tseeb ntawm qhov chaw muab tso rau hauv nti yog nyob rau hauv ib qho kev zam me me.

2. Tsim cov qauv dej ntws

Teem cov grooves los yog qhov thiab lwm yam qauv ntawm lub bracket los coj cov kev taw qhia ntws ntawm epoxy resin, ua rau nws encapsulate lub nti ntau uniformly. Cov txheej txheem dej no tuaj yeem ua kom zoo raws li cov duab thiab txoj haujlwm ntawm cov nti kom ntseeg tau tias cov epoxy resin tuaj yeem npog txhua qhov ntawm cov nti.

(2) Precise Control ntawm Pouring txheej txheem

1. Kev xaiv cov khoom xa tawm lossis cov khoom siv nchuav

Siv cov tshuab xa cov khoom siv high-precision los yog cov khoom siv pouring, uas tuaj yeem tswj tau qhov ntim thiab ceev ntawm cov epoxy resin. Piv txwv li, lub tshuab ntsia hlau-hom dispensing tshuab muaj qhov ntsuas qhov ntsuas siab thiab tswj kev ua haujlwm, ua kom muaj micro thiab tsis sib xws ntawm cov epoxy resin. Nyob rau tib lub sijhawm, kev tsim lub nozzle ntawm cov khoom siv kuj tseem ceeb heev. Qhov tsim nyog lub taub hau thiab qhov loj me tuaj yeem ua rau cov epoxy resin ntws tawm ntawm tus nqi sib xws.

2. Npaj Txoj Kev Pouring

Raws li cov qauv ntawm cov nti thiab lub bracket, npaj ib txoj hauv kev tsim nyog pouring. Multi-point pouring los yog point-by-point pouring txoj kev tuaj yeem tau txais los xyuas kom meej tias cov epoxy resin ntws sib npaug ntawm cov nti los ntawm cov lus qhia sib txawv. Thaum lub sij hawm pouring txheej txheem, xyuam xim rau lub pouring ib ntus thiab lub sij hawm ncua sij hawm kom tsis txhob muaj ntau tsub zuj zuj los yog tsis txaus txaus ntawm cov epoxy resin nyob rau hauv ib qho chaw.

(3) Kev kho degassing

1. Nqus Degassing

Tom qab cov epoxy resin sib tov, muab tso rau hauv lub tshuab nqus tsev degassing rau kev kho degassing. Hauv ib puag ncig lub tshuab nqus tsev, cov npuas hauv epoxy resin yuav nce thiab tawg vim qhov sib txawv ntawm sab hauv thiab sab nraud, yog li tshem tawm cov npuas. Lub sij hawm degassing thiab nqus tsev kawm ntawv yuav tsum tau kho kom haum raws li cov yam ntxwv thiab ntau npaum li cas ntawm epoxy resin. Feem ntau, lub tshuab nqus tsev kawm ntawv tswj ntawm -0.08MPa thiab -0.1MPa, thiab lub sijhawm degassing yog 10 - 20 feeb.

2. Centrifugal degassing

Ntxiv nrog rau lub tshuab nqus tsev degassing, centrifugal degassing kuj tseem siv tau. Muab cov khoom sib xyaw epoxy cob rau hauv cov khoom siv centrifugal, thiab lub zog centrifugal tsim los ntawm kev sib hloov ceev ua rau cov npuas ua kom zoo rau ntawm cov epoxy resin, thiab tom qab ntawd tshem tawm cov txheej txheej uas muaj npuas. Qhov ceev thiab lub sij hawm ntawm centrifugal degassing kuj yuav tsum tau optimized raws li qhov tseeb qhov teeb meem.

(4) Tswj cov txheej txheem kho

1. Uniform Temperature Distribution

Thaum lub sij hawm curing txheej txheem, nws yog ib qho tseem ceeb los xyuas kom meej ib tug uniform kub faib nyob rau hauv lub curing rauv. Kev tswj xyuas qhov kub thiab txias thiab kev tsim hluav taws xob zoo tuaj yeem siv los ua kom cov epoxy resin ua kom tsis sib xws thaum lub sijhawm kho. Piv txwv li, siv lub tshuab tua hluav taws xob nrog lub tshuab cua kub, uas tuaj yeem ua rau qhov kub thiab txias hauv lub cub tawg zoo ib yam thiab zam kev tsis sib xws ntawm epoxy resin vim qhov kub thiab txias hauv cheeb tsam ntau dhau.

2. Tsim nyog Curing Ceev

Kev tswj cov kev kho ceev kuj tseem tuaj yeem cuam tshuam cov nyhuv encapsulation ntawm epoxy resin. Kev nrawm nrawm nrawm tuaj yeem ua rau epoxy resin kho ua ntej nws tau ntws tag nrho thiab ntim cov nti, thaum qeeb qeeb qeeb yuav cuam tshuam rau kev tsim khoom. Raws li cov qauv tsim thiab cov yam ntxwv ntawm epoxy resin, xaiv qhov tsim nyog curing kub nkhaus thiab lub sij hawm kom cov epoxy resin ua kom tiav cov txheej txheem curing nyob rau hauv ib lub sij hawm tsim nyog thiab uniformly encapsulate lub nti.

 

Cov txheej txheem nyuaj

(1) Teeb meem npuas

1. Ua Npuas Generation

Cov npuas tuaj yeem tsim tawm thaum lub sijhawm sib xyaw, nchuav thiab kho cov txheej txheem ntawm epoxy resin. Piv txwv li, tsis sib luag stirring thaum lub sij hawm sib tov yuav qhia cov huab cua thiab tsim npuas; ceev dhau lub ncuav nrawm lossis tsis tsim nyog cov txheej txheem tseem yuav coj cua mus rau hauv epoxy resin; Tsis tas li ntawd, cov nro nro thiab viscosity cov yam ntxwv ntawm Epoxy Resin nws tus kheej kuj tseem yuav cuam tshuam rau cov npuas thiab tshem tawm cov npuas.

2. Kev cuam tshuam ntawm npuas ntawm Uniform Encapsulation

Lub xub ntiag ntawm npuas yuav rhuav tshem qhov sib xws ntawm epoxy resin, uas ua rau cov voids lossis kab noj hniav nyob ib ncig ntawm lub nti, cuam tshuam rau kev ua haujlwm kho qhov muag thiab kev ua haujlwm kub ntawm LED. Nyob rau tib lub sijhawm, cov npuas yuav nthuav lossis tawg thaum lub sijhawm kho, ntxiv rau cov nyhuv encapsulation thiab encapsulation zoo ntawm epoxy resin.

(2) Fluidity teeb meem ntawm Epoxy Resin

1. Yog vim li cas rau Fluidity tsis txaus

Lub fluidity ntawm epoxy resin cuam tshuam los ntawm ntau yam, xws li kub, viscosity, formulation, thiab lwm yam. Yog hais tias lub viscosity ntawm epoxy resin yog siab dhau lawm, nws yuav nyuaj rau ntws tusyees nyob ib ncig ntawm lub nti thaum lub sij hawm pouring txheej txheem, uas ua rau uneven encapsulation. Tsis tas li ntawd, qhov ntsuas kub qis dhau los kuj tseem yuav txo qhov fluidity ntawm epoxy resin, ua rau nws nyuaj rau tag nrho cov qhov khoob ntawm cov nti thiab lub bracket.

2. Kev sib tw ntawm Fluidity rau Uniform Encapsulation

Fluidity tsis txaus yuav ua rau cov epoxy resin tsim hauv zos tsub zuj zuj nyob ib ncig ntawm lub nti los yog ua tsis tau tag nrho cov nti. Qhov teeb meem no tseem ceeb dua tshwj xeeb tshaj yog rau qee cov chips lossis brackets nrog cov qauv nyuaj. Qhov no yuav tsis tsuas yog cuam tshuam rau kev ua haujlwm kho qhov muag ntawm LED, tab sis kuj ua rau lub zog tsis sib xws ntawm cov nti thiab cov epoxy resin, txo qhov kev cia siab ntawm lub encapsulation.

(3) Chip Position Deviation

1. Yog vim li cas rau txoj hauj lwm sib txawv

Thaum lub sij hawm pouring txheej txheem ntawm cov epoxy resin, cov nti yuav deviate los ntawm nws txoj hauj lwm vim muaj kev cuam tshuam quab yuam ntawm cov kua los yog nto nro. Tsis tas li ntawd, qhov curing shrinkage los yog unevenness ntawm tuag bonding nplaum thaum lub sij hawm tuag bonding txheej txheem kuj yuav ua rau txoj hauj lwm ntawm lub nti.

2. Kev cuam tshuam ntawm Txoj Haujlwm Deviation ntawm Uniform Encapsulation

Qhov sib txawv ntawm txoj haujlwm nti yuav ua rau cov epoxy resin tsis sib npaug ntawm cov nti. Nws tuaj yeem ua rau cov epoxy resin tuab heev nyob rau hauv qee qhov chaw thiab nyias dhau los yog tsis tuaj yeem npog rau lwm qhov chaw. Qhov no yuav cuam tshuam rau kev kho qhov muag thiab hluav taws xob ua haujlwm ntawm LED thiab txo qhov sib xws thiab kev ntseeg siab ntawm cov khoom.

(4) Kev kho tsis sib xws ntawm Epoxy Resin

1. Yog vim li cas rau kev kho tsis sib xws

Kev kho tsis sib xws tuaj yeem tshwm sim los ntawm qhov tsis sib xws ntawm qhov kub thiab txias hauv qhov cub tua, kev tsim tsis sib xws ntawm epoxy resin lossis kev tswj tsis raug ntawm kev kho ceev. Tsis tas li ntawd, qhov sib txawv ntawm thermal conductivity ntawm cov nti thiab lub bracket kuj tseem tuaj yeem ua rau sib txawv curing speeds ntawm epoxy resin nyob rau hauv ntau qhov chaw.

2. Qhov tshwm sim ntawm kev kho tsis sib xws rau Uniform Encapsulation

Kev kho tsis sib xws yuav ua rau cov epoxy resin sib txawv hardness thiab ntom nyob ib ncig ntawm lub nti, cuam tshuam rau nws cov kev tiv thaiv thiab kev txhawb nqa los ntawm cov nti. Nyob rau tib lub sijhawm, nws kuj tseem tuaj yeem ua rau muaj kev sib txuas tsis sib haum ntawm cov epoxy resin thiab cov nti thiab cov bracket, thiab cov teeb meem xws li tawg lossis tev tawm yuav tshwm sim thaum siv mus ntev.

 

Solutions

(1) Kev daws teeb meem npuas

1. Txhim kho cov txheej txheem sib tov

Thaum sib tov cov epoxy resin, siv txoj kev sib tov kom tsim nyog thiab ceev kom ntseeg tau tias cov epoxy resin yog tag nrho sib xyaw yam tsis muaj cua ntau dhau. Ib txoj hauv kev ua kom qis qis qis thiab txuas ntxiv lub sijhawm nplawm tuaj yeem raug coj los siv, thiab sim ua kom tsis txhob muaj kev kub ntxhov thaum lub sijhawm nplawm. Tsis tas li ntawd, cov khoom ntawm epoxy resin tuaj yeem raug preheated ua ntej sib tov kom txo nws cov viscosity thiab txhim kho cov nyhuv sib xyaw.

2. Txhim kho cov txheej txheem Pouring

Thaum pouring cov epoxy resin, tswj lub pouring ceev kom tsis txhob nqa cua nyob rau hauv vim yog pouring ceev heev. Ib txoj kev ua kom qeeb thiab zoo ib yam tuaj yeem siv tau, thiab ncua kom tsim nyog thaum lub sij hawm nchuav txheej txheem kom cov epoxy resin ntws tag nrho thiab tso tawm cov npuas. Nyob rau tib lub sijhawm, xaiv cov khoom siv thiab cov nozzles tsim nyog los xyuas kom meej tias cov epoxy resin tuaj yeem ntws zoo nyob ib puag ncig cov nti.

3. Txhim khu kev kho degassing

Ntxiv rau qhov tau hais los saum toj no lub tshuab nqus tsev degassing thiab centrifugal degassing, tus nqi tsim nyog ntawm defoamer tuaj yeem ntxiv rau epoxy resin. Lub defoamer tuaj yeem txo qhov nro ntawm cov epoxy resin, ua kom yooj yim rau cov npuas kom tawg thiab tshem tawm. Txawm li cas los xij, xyuam xim rau tus nqi ntawm defoamer ntxiv, vim tias defoamer ntau dhau tuaj yeem cuam tshuam rau kev ua haujlwm ntawm epoxy resin.

(2) Kev daws teeb meem Fluidity ntawm Epoxy Resin

1. Kho cov Epoxy Resin Formulation

Kho cov qauv ntawm epoxy resin kom txo nws cov viscosity thiab txhim kho nws cov fluidity. Ib qho kev tsim nyog ntawm cov diluent tuaj yeem muab ntxiv lossis xaiv cov viscosity epoxy resin matrix tsawg. Tab sis thaum kho cov formulation, xyuam xim rau kev tswj hwm lwm yam khoom ntawm epoxy resin, xws li kho qhov muag, mechanical thiab curing zog.

2. Tswj qhov kub ntawm ambient

Ua ntej nchuav epoxy resin, preheat lub epoxy resin thiab lub encapsulation ib puag ncig rau qhov tsim nyog kub los txhim kho cov fluidity ntawm epoxy resin. Feem ntau hais lus, qhov nce hauv qhov kub thiab txias yuav txo qhov viscosity ntawm epoxy resin thiab ua kom nws fluidity. Tab sis ua tib zoo saib xyuas qhov kub thiab txias hauv qhov tsim nyog kom tsis txhob kho ntxov ntxov lossis kev ua haujlwm ntawm epoxy resin vim qhov kub thiab txias dhau.

3. Optimize tus qauv Bracket

Optimize tus qauv ntawm lub bracket kom txo tau qhov tsis kam mus rau qhov ntws ntawm epoxy resin. Piv txwv li, txo cov ces kaum ntse thiab protrusions ntawm lub bracket kom cov epoxy resin ntws zoo dua. Nyob rau tib lub sijhawm, qee qhov kev pab cuam ntws, xws li kev sib txawv grooves lossis qhov, tuaj yeem teeb tsa ntawm lub bracket.

(3) Kev daws teeb meem rau Chip Position Deviation teeb meem

1. Txhim kho cov txheej txheem tuag Bonding

Txhim kho qhov tseeb thiab kev ruaj ntseg ntawm cov txheej txheem kev sib khi tuag kom ntseeg tau tias cov nti ruaj khov ntawm lub bracket. Siv high-precision tuag bonders thiab high-quality tuag bonding adhesives, tswj cov dispensing npaum li cas thiab txoj hauj lwm ntawm cov tuag bonding nplaum, thiab xyuas kom meej qhov tseeb txoj hauj lwm ntawm lub nti ua ntej pouring lub epoxy resin. Tsis tas li ntawd, kev kho kom tsim nyog tuaj yeem ua tiav tom qab kev sib khi tuag los txhim kho lub zog ntawm cov nplaum nplaum tuag thiab tiv thaiv cov nti los ntawm kev sib txawv ntawm cov txheej txheem tom ntej.

2. Optimize tus txheej txheem Pouring

Thaum pouring epoxy resin, tswj lub pouring ceev thiab kev taw qhia kom txo tau qhov cuam tshuam quab yuam ntawm cov kua ntawm lub nti. Multi-point pouring los yog step-by-step pouring txoj kev tuaj yeem raug coj los ua kom cov epoxy resin sib npaug ntawm cov nti thiab tsis txhob nti sib txawv los ntawm lub zog hauv zos ntau dhau. Nyob rau tib lub sijhawm, lub kaum sab xis ntawm lub bracket tuaj yeem hloov kho kom tsim nyog thaum lub sij hawm nchuav txheej txheem kom cov epoxy resin ntws ntau dua nyob ib ncig ntawm lub nti.

(4) Kev daws qhov teeb meem tsis sib xws ntawm Epoxy Resin

1. Optimize cov cuab yeej kho

Siv cov cuab yeej kho kom zoo los xyuas kom muaj qhov sib txawv ntawm qhov kub thiab txias hauv qhov cub tua. Lub tshuab tua hluav taws kub nrog lub ntsuas kub thiab lub tshuab tawm tswv yim tuaj yeem siv los saib xyuas thiab kho qhov kub thiab txias hauv qhov cub hauv lub sijhawm. Nyob rau tib lub sijhawm, tsis tu ncua tswj thiab ntsuas cov cuab yeej kho kom ntseeg tau qhov tseeb ntawm nws qhov ntsuas kub.

2. Kho cov Epoxy Resin Formulation

Optimize lub formulation ntawm epoxy resin kom nws curing cov tshuaj tiv thaiv ntau uniform. Tus neeg sawv cev kho nrog qhov kev kho kom ruaj khov tuaj yeem xaiv tau, thiab tus nqi ntawm tus neeg saib xyuas tuaj yeem hloov kho kom tsim nyog. Tsis tas li ntawd, qee cov tshuaj ntxiv uas txhawb kev kho kom zoo, xws li latent curing agents lossis coupling agents, kuj tuaj yeem ntxiv.

3. Tswj cov txheej txheem Curing

Thaum lub sij hawm curing txheej txheem, nruj me ntsis tswj lub curing kub thiab lub sij hawm, thiab ua hauj lwm raws li curing nkhaus ntawm epoxy resin. Ib txoj kev kho segmented tuaj yeem siv tau, ua ntej ua ntej kho ntawm qhov kub qis kom ua kom cov epoxy resin pib kho thiab tsim ib lub zog, thiab tom qab ntawd ua tiav kev kho ntawm qhov kub siab dua kom ntseeg tau tias cov epoxy resin tau kho zoo ib yam nyob ib ncig ntawm lub nti.

xaus

Xyuas kom lub uniform encapsulation ntawm LED chips nrog epoxy resin yog qhov txuas tseem ceeb hauv cov txheej txheem LED encapsulation, uas cuam tshuam ncaj qha rau kev ua haujlwm thiab kev ntseeg siab ntawm LEDs. Los ntawm cov txheej txheem xws li kev tsim cov bracket meej, kev tswj cov txheej txheem nchuav, kev kho degassing thiab tswj cov txheej txheem kho, qhov sib xws ntawm epoxy resin encapsulation tuaj yeem txhim kho tau zoo. Nyob rau tib lub sijhawm, rau cov txheej txheem nyuaj, xws li teeb meem npuas, teeb meem fluidity ntawm epoxy resin, nti txoj hauj lwm sib txawv thiab tsis sib xws, cov kev daws teeb meem tuaj yeem raug coj los ua kom zoo dua qub. Hauv kev tsim khoom tiag tiag, nws yog qhov yuav tsum tau ua kom zoo dua cov txheej txheem encapsulation thiab ntxiv dag zog rau kev tswj hwm kom ua tau raws li kev lag luam xav tau rau cov khoom lag luam zoo LED thiab txhawb txoj kev loj hlob ntawm LED kev lag luam. Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib ntawm LED thev naus laus zis thiab kev nthuav dav ntawm daim ntawv thov kev lag luam, cov kev xav tau rau cov txheej txheem epoxy resin encapsulation yuav ua siab dua thiab siab dua. Kev tsim kho thev naus laus zis txuas ntxiv thiab kev tshawb fawb yog xav tau los hloov kho cov kev xav tau ntawm kev lag luam.

Yog xav paub ntxiv txog kev xaiv qhov zoo tshaj plaws epoxy nplaum nplaum rau hlau rau yas, koj tuaj yeem them mus ntsib DeepMaterial ntawm https://www.epoxyadhesiveglue.com/category/epoxy-adhesives-glue/ yog xav paub ntau info.