Taw qhia
Hauv kev tsim khoom SMT,solder paste luam ntawvyog ib kauj ruam tseem ceeb uas cuam tshuam rau PCB soldering zoo. Nrog rau kev siv ntau ntxiv ntawm -cov khoom siv ntom ntom xws li 0201, 01005, nplua -pitch ICs, thiab BGAs, qhov cuam tshuam ntawm solder paste thickness sib xws ntawm kev tsim tawm tau nce ntxiv.
Thaum ntsibKev tshuaj xyuas SPIkev tsis sib haum xeeb, ntau lub tsev lag luam nyiam qhov tseem ceeb ntawm kev hloov kho rau cov khoom siv tshuaj txhuam hniav, stencil, lossis cov ntawv luam tawm. Txawm li cas los xij, hauv kev tsim khoom tiag tiag, qhov tsis sib xws ntawm cov nplaum nplaum nplaum yog feem ntau cuam tshuam nrog kev ruaj ntseg ntawm lub squeegee system.
Ib txwm siv lub tshuab squeegee taub hau feem ntau vam khom cov khoom siv los yog cov cuab yeej siv tshuab los tswj lub siab, ua rau lawv muaj kev cuam tshuam rau yam xws li kev siv tshuab thiab kev hloov siab tom qab ua haujlwm ntev. Hauv qhov sib piv, hluav taws xob tswj huab cua-float squeegee taub hau siv txoj kev tswj kom ruaj khov dua, ua rau lub squeegee tuav lub xeev kev sib cuag ntau dua thaum lub sijhawm ua haujlwm tas mus li, yog li txhim kho cov khoom siv hluav taws xob hloov pauv kev ua haujlwm.
Kab lus no yuav txheeb xyuas, siv covNeoDen ND450 tag nrho automatic solder paste tshuab luam ntawv Piv txwv li, yuav ua li cas lub tshuab hluav taws xob tswj huab cua- ntab squeegee taub hau pab daws qhov teeb meem ntawm qhov tsis sib xws ntawm solder paste thickness.
Vim li cas Solder Paste Thickness yuav tsis sib npaug?
Cov txheej txheem luam ntawv ntawm solder paste yuav zoo li yooj yim, tab sis nws tau cuam tshuam los ntawm ntau yam, suav nrog:
- Squeegee siab.
- PCB flatness.
- Stencil mob.
- Kev luam ntawv ceev.
- Demolding tsis.
- Kev tu huv.
Ntawm cov no, kev ruaj ntseg ntawm squeegee siab yog ib qho ntawm cov ntsiab lus tseem ceeb cuam tshuam rau qhov sib xws ntawm solder paste thickness.
1. Kev hloov pauv hauv Squeegee Siab cuam tshuam rau Solder Paste Filling Performance
Cov txheej txheem luam ntawv luam ntawv muaj feem cuam tshuam nrog lub squeegee thawb lub nplaum nplaum kom sau cov stencil apertures thiab tom qab ntawd hloov mus rau PCB pads.
Yog hais tias lub siab squeegee tseem nyob ruaj khov, cov khoom siv tshuaj pleev xim rau hauv cov stencil apertures yuav zoo ib yam, thiab qhov ntim ntawm cov tshuaj nplaum siv rau txhua PCB yuav zoo ib yam.
Txawm li cas los xij, ib txwm siv cov tshuab squeegees feem ntau vam khom rau qhov chaw, qhov hnyav, lossis kev hloov kho phau ntawv los tswj kev siab. Thaum lub sij hawm ntev ntau lawm, cov neeg kho tshuab hnav thiab lub siab hloov pauv tuaj yeem ua rau tsis sib xws ntawm lub zog faib thoob plaws lub squeegee, uas ua rau muaj zog ntxiv lossis txo qhov ntim ntawm cov khoom siv hauv qee qhov chaw.
Rau cov qauv PCBs, cov kev hloov pauv no yuav tsis pom, tab sis rau qhov zoo -pitch, BGA, QFN, lossis 0201 cov khoom, txawm tias qhov sib txawv me me hauv cov ntim ntim tuaj yeem ua rau:
- Kev hla.
- Tsis txaus solder.
- Inconsistent solder joint qhov siab.
- SPI soj ntsuam tsis ua hauj lwm.
2. PCB Warpage thiab Stencil Variations Amplify Printing yuam kev
Ntxiv rau qhov squeegee siab, qhov xwm txheej ntawm PCB thiab stencil kuj cuam tshuam rau kev hloov pauv hloov pauv.
Raws li PCBs ua thinner thiab loj loj, me ntsis warpage yuav tshwm sim thaum lub sij hawm tsim khoom. Thaum lub zos qhov siab ntawm PCB hloov thiab lub siab squeegee tsis tuaj yeem hloov mus rau cov kev hloov no, cov teeb meem hauv qab no yuav tshwm sim:
- Kev sib cuag tsis txaus ntawm stencil thiab PCB hauv qee qhov chaw.
- Kev siab dhau ntawm qee qhov chaw.
- Uneven solder paste thickness faib.
Nyob rau tib lub sijhawm, kev hloov pauv ntawm qhov nro lossis qhov chaw hnav ntawm lub stencil vim siv ntev kuj tseem cuam tshuam rau kev luam ntawv sib xws.
Yog li ntawd, kev kho cov ntawv luam ntawv ib leeg tsis tuaj yeem daws qhov teeb meem ntawm solder paste thickness fluctuations, cov cuab yeej tswj lub siab muaj peev xwm tseem ceeb sib npaug.
Lub tshuab hluav taws xob tswj huab cua li cas -float squeegee taub hau txhim kho cov luam ntawv luam ntawv sib xws?
Lub tshuab hluav taws xob tswj huab cua-float squeegee taub hau ua ke nrog kev tswj hluav taws xob nrog pneumatic siab tswj kom ntseeg tau tias muaj zog squeegee ruaj khov.
Piv nrog rau cov tshuab squeegees tsoos, nws qhov zoo yog feem ntau xav txog ob yam.
1. Ua kom ruaj khov squeegee siab los txhim kho kev sib hloov ntawm cov khoom sib xws
Thaum nruam ntau lawm, ruaj khov squeegee siab xyuas kom meej tias:
- Stencil apertures puv puv.
- Solder paste ntim yog sib npaug sib npaug ntawm ntau qhov chaw ntawm PCB.
- Kev luam ntawv zoo sib xws ntau dua ntawm cov khoom sib txawv.
Rau cov tuam ntxhab ntawm siab -PCBs ceev- xws li Fine Pitch ICs, BGAs, QFNs, thiab 0201 cov khoom- kev tswj kom ruaj khov tuaj yeem txo qhov tsis xws ntawm soldering los ntawm kev hloov pauv hauv cov ntim ntim tshuaj.
2. Kev hloov pauv hloov pauv hloov pauv hauv PCBs thiab Stencils
Thaum lub sij hawm tsim khoom, PCB flatness thiab stencil mob tsis yog ib txwm zoo ib yam.
Lub tshuab hluav taws xob tswj tau huab cua- ntab qauv tuaj yeem hloov kho rau qee yam raws li kev sib cuag, ua kom lub squeegee tswj kev sib cuag nrog cov stencil ruaj khov thiab txo qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv los ntawm kev hloov siab hauv zos.
Nyob rau hauv ntau lawm ib puag ncig nrogntau yam khoom ntau yam thiab me me batch loj, qhov kev ruaj ntseg no txo qhov kev xav tau ntawm kev hloov kho tshuab ntau zaus thiab txhim kho kev hloov pauv kev ua haujlwm.
Yuav ua li casNeoDen ND450Xyuas kom ruaj khov Solder Paste Printing?
Ntxiv nrog rau qhov squeegee system, ruaj khov solder paste luam ntawv yuav tsum muaj kev sib koom ua haujlwm ntawm kev pom kev sib haum xeeb, kev tswj tsis tau, thiab kev tu stencil.
NeoDen ND450 txhim kho kev luam ntawv sib xws los ntawm ntau yam nta.
1. Precise Control of Printing Parameters
ND450 txhawb kev hloov kho ntawm:
- Luam Ntawv Ceev.
- Demolding Length.
- Pasing Sijhawm Ua ntej Demolding.
Raws li covNeoDen ND450 neeg sivphau ntawv, qhov pom zoo teeb tsa rau kev luam ntawv ceev yog 10, thaum lub sijhawm ncua sijhawm ua ntej demolding tuaj yeem teem caij nruab nrab ntawm 1,000 thiab 3,000 ms raws li cov khoom siv tshuaj txhuam cov yam ntxwv los txhim kho cov tshuaj txhuam tawm.
Kev teeb tsa kom raug cov kev txwv no pab cov khoom siv tshuaj pleev xim rau cov stencil apertures kom huv si thiab txhim kho qhov tsim tau zoo tom qab demolding.
2. Lub zeem muag Alignment txo qis kev sib raug zoo ntawm PCB thiab Stencil
Kev sib xyaw ua ke ntawm cov nplaum nplaum yog nyob ntawm tsis yog tsuas yog nyob rau ntawm lub siab squeegee tab sis kuj nyob ntawm qhov tseeb ntawm PCB thiab stencil.
ND450 txhawb nqa kev lees paub thiab tso cai xaiv cov qauv hauv qab no raws li PCB thiab stencil tej yam kev mob:
- Ib leeg txhaj.
- Dual txhaj tshuaj.
Tsis tas li ntawd, cov cuab yeej txhawb nqa kev hloov kho ntawm cov cim kev paub tsis meej los txhim kho kev sib raug zoo.
Kev pom tseeb ntawm kev sib raug zoo txo qis kev sib raug zoo ntawm PCB thiab cov stencil, ua rau cov tshuaj pleev xim rau luam tawm ntau dua rau ntawm qhov chaw ncoo.
3. Tsis siv neeg tu kom tswj tau qhov xwm txheej ntawm Stencil
Residual solder paste nyob rau hauv stencil apertures tuaj yeem cuam tshuam cov txiaj ntsig luam tawm tom ntej.
CovNeoDenNPE 450solder paste tshuab luam ntawvyog txawm peem rau nrog ib tug tsis siv neeg stencil tu muaj nuj nqi, tso cai rau cov neeg siv teem:
- Ntxuav pib taw tes.
- Ntxuav qhov kawg taw tes.
- Ntxuav tsis tau.
Covneeg sivphau ntawvpom zoo kom huv daim ntawv tsis muaj 15.
Kev tu tsis tu ncua yuav pab txo cov teeb meem xws li clogged apertures thiab tsis txaus solder paste.
Lub tshuab hluav taws xob tswj tau huab cua li cas -float squeegee lub taub hau puas tuaj yeem daws qhov tsis sib xws ntawm solder paste thickness?
Tsis muaj.
Solder paste thickness yog cuam tshuam los ntawm ntau yam, suav nrog:
- Stencil tsim.
- Solder paste kev ua tau zoo.
- PCB flatness.
- Printing parameters.
- Cov khoom siv xwm txheej.
Lub tshuab hluav taws xob tswj huab cua-float squeegee lub taub hau feem ntau hais txog qhov teeb meem ntawm squeegee siab ruaj khov, yog li txhim kho cov khoom sib txuas sib txuas.
Txhawm rau kom ua tiav cov txiaj ntsig luam ntawv ruaj khov, nws tseem yuav tsum tau muab cov txheej txheem kev teeb tsa tsim nyog, kev saib xyuas stencil, thiab cov khoom siv calibration.
FAQ
1. Rau cov khoom twg yog lub tshuab hluav taws xob tswj huab cua -float squeegee taub hau haum?
Nws yog haum rau siab -precision SMT khoom, xws li:
- Zoo - suab ICs.
- BGAs.
- QFNs.
- 0201/01005 Cheebtsam.
Nws kuj tseem muaj txiaj ntsig tseem ceeb rau PCBs nrog cov kev xav tau siab, xws li cov khoom siv hauv tsheb hluav taws xob, kev tswj hwm kev lag luam, thiab cov khoom siv sib txuas lus.
2. Vim li cas solder paste thickness tseem tsis ruaj khov txawm tias tom qab kho cov ntawv luam tawm?
Vim tias kev luam ntawv zoo tsis yog txiav txim siab los ntawm cov kev txwv ib leeg.
Yog tias squeegee siab hloov pauv, kho lub sijhawm luam ntawv lossis lub sijhawm demolding yuav tsuas yog txo qhov teeb meem thiab tsis daws qhov laj thawj.
Cov hauv qab no yuav tsum tau kuaj ib txhij:
- Squeegee siab stability.
- Kev them nyiaj yug PCB.
- Stencil mob.
- Kev huv huv.
Xaus
Tsis sib xws solder paste thickness tsis yog tshwm sim los ntawm ib qho kev txwv tab sis yog qhov tshwm sim ntawm kev sib xyaw ua ke ntawm cov khoom siv, cov txheej txheem tsis, thiab qhov chaw tsim khoom.
Nyob rau hauv niaj hnubSMT ntau lawm, ruaj khov squeegee siab yog lub hauv paus rau kev ua kom muaj kev sib txuam ntawm cov khoom sib xws. Cov tshuab luam ntawv tsis siv neeg puv tshuab luam ntawv nruab nrog cov tshuab hluav taws xob tswj huab cua-float squeegee hau tuaj yeem txo qhov kev hloov pauv siab thiab txhim kho cov tshuaj txhuam cov tshuaj txhuam kom ruaj khov.
CovNeoDen ND450ua ke cov tshuab hluav taws xob tswj hluav taws xob-float squeegee system, lub zeem muag-raws li qhov chaw, kev tswj xyuas cov ntawv luam tawm, thiab tsis siv neeg stencil tu lub luag haujlwm los muab cov khoom lag luam ruaj khov dua rau kev luam ntawv siab - ntom ntom PCB ntau lawm.