A solder muab tshuaj txhuamCov lus hais feem ntau yog qhia raws li tus nqi ib lub thawv, koob txhaj tshuaj, cartridge lossis kilogram. Tus lej ntawd tseem ceeb rau kev yuav khoom, tab sis nws tsis qhia tus nqi khoom ntawm txhua tus PCB zoo.
Qhov tseeb solder paste nqi ib PCB nyob ntawm tus nqi ntawm cov khoom siv, cov khoom siv thaum lub sij hawm luam ntawv lossis xa tawm, thiab cov khoom poob raug faib rau cov laug cam uas dhau cov txheej txheem lees paub.
Siv cov ntaub ntawv siv tiag tiag rau kab tsim. Siv cov duab geometry-raws li kev npaj ua ntej pib tsim khoom. Tsis txhob muab ob txoj hauv kev los yog siv cov txiaj ntsig ob zaug.
Teb ceev
Rau lub sijhawm ua tiav, siv:
Tus nqi tiag tiag rau ib qho zoo PCB=Net muab tshuaj txhuam tau noj hauv grams × av nqi ib gram ÷ qhov tseeb PCBs ua tau zoo
Rau kev npaj ua ntej, siv:
Tus nqi kwv yees rau ib qho zoo PCB=Kwv yees tus nqi muab tshuaj txhuam rau ib daim ntawv luam PCB ÷ xav tau zoo- pawg thawj coj saib
Txoj kev tiag tiag - lub sij hawm twb siv cov laug cam zoo li tus denominator, yog li nws yuav tsum tsis txhob muab faib los ntawm yield thib ob.
Txhais tus nqi ciam teb ua ntej xam
Cov lussolder paste nqituaj yeem xa mus rau ntau qhov sib txawv accounting. Txiav txim siab qhov ua ntej sib piv cov khoom lossis cov chaw muag khoom.
| Qeb Nqi | Cov Ntsiab Lus | Yuav Siv Li Cas |
|---|---|---|
| Tus nqi yuav khoom | Quotes khoom nqi ib pob los yog kilogram | Kev sib piv khoom |
| Rov ua dua cov khoom siv ncaj qha | Muab tshuaj txhuam tau siv, muab pov tseg thiab sau tawm thaum lub sijhawm tsim khoom | Tus nqi rau luam tawm lossis zoo PCB |
| Kev muab tshuaj rov ua dua -txog tus nqi hloov pauv | Cia, tuav, tu thiab rov ua haujlwm dua thaum lub tuam txhab faib lawv cais | Kev tsim khoom- kev txheeb xyuas tus nqi |
| Ib - lub sij hawm tsim nyog tus nqi | Kev sim, SPI kev tshawb fawb, kev txhim kho profile thiab kev kuaj pom zoo | Qhov project lossis hloov pauv - tswj kev siv nyiaj txiag |
| Tag nrho cov nqi ntawm cov tswv cuab | Direct, indirect thiab tsim nyog cov nqi raws li ib txoj kev faib faib | Tus neeg muab khoom lossis cov khoom siv - hloov kev txiav txim siab |
Tsis txhob ntxiv kev tsim nyog, kev poob qis lossis rov ua haujlwm rau cov khoom siv yog tias cov khoom no twb tau suav nrog rau lwm qhov hauv lub tuam txhab tus nqi.
Peb tus lej Cov neeg yuav khoom feem ntau tsis meej pem
Tus nqi muag khoom ib kilogram
Qhov no yog ib qho kev nkag mus rau kev suav. Nws tuaj yeem sib txawv nrog alloy, hmoov Hom, flux formulation, pob, xaj ntim, cov ntaub ntawv, txiaj thiab cov nqe lus xa khoom.
Direct Paste Tus nqi rau luam tawm PCB
Qhov no yog tus nqi rov qab muab tshuaj ntxiv rau txhua lub rooj tsavxwm lossis vaj huam sib luag uas nkag mus rau hauv cov txheej txheem luam ntawv, ua ntej cov txiaj ntsig ntawm cov txiaj ntsig tau txiav txim siab.
Tag nrho cov nqi muab tshuaj txhuam rau ib qho zoo PCB
Qhov no faib cov nqi muab tshuaj xyuas los ntawm cov laug cam uas ua tau raws li qhov kev lees paub uas tau xaiv. Tus denominator tej zaum yuav yog thawj zaug - dhau lub rooj tsav xwm zoo, cov rooj zaum zaum kawg tau txais tom qab tau txais kev pom zoo rov ua dua lossis xa cov khoom xa tuaj, tab sis tib lub ntsiab lus yuav tsum tau siv tas li.
Yuav Ua Li Cas Txiav Txim Tus Neeg Siv Khoom Muag Khoom Muag Khoom Muag?
Cov lus hais ib txwm qhia txog ob qho tib si tsim cov khoom siv thiab cov ntsiab lus lag luam.
| Nqe Factor | Yog vim li cas Nws thiaj cuam tshuam rau lub Quote |
|---|---|
| Alloy muaj pes tsawg leeg | Txawv cov tin, nyiaj, tooj liab, bismuth thiab lwm cov ntsiab lus hlau tsim sib txawv - cov khoom thiab cov txheej txheem yuav tsum tau ua. |
| Hom hmoov | Cov hmoov hmoov zoo yuav xav tau kom nruj atomization, kev faib tawm, kev tswj oxidation thiab flux txuam. |
| Flux formulation | Tsis muaj- huv, ntxuav, xoom-halogen, qis-kub, qis-voiding thiab jetting formulations yuav muaj ntau yam kev ua tau zoo thiab kev tsim nyog. |
| Ntim | hub, syringes, cartridges thiab me me rework packs muaj sib txawv filling, residual thiab tuav nqi. |
| Kev kuaj thiab traceability | Batch testing, CoA, tswj kev qhia tshwj xeeb thiab cov neeg siv khoom- cov ntaub ntawv tshwj xeeb ntxiv tus nqi thiab tus nqi. |
| Cov ntsiab lus lag luam | MOQ, freight, lub luag hauj lwm, txias - saw tuav, txiaj, nqe lus them nqi thiab hais validity cuam tshuam tus nqi tsaws. |
Covqhia rau tin solder alloys rau PCB los ua kepiav qhia tias vim li cas ob qho txhuas txhuas -paste dawb tuaj yeem muaj cov xim hlau sib txawv thiab cov txheej txheem txheej txheem. Kev xaiv hmoov kuj yuav tsum tau tshuaj xyuas ua ke nrog raulub cev muaj zog ntawm solder paste, tsis xaiv los ntawm tus nqi ib leeg.
Txoj Kev 1: xam tus nqi tiag tiag los ntawm cov ntaub ntawv tsim khoom
Txoj kev no yog qhov zoo dua tom qab cov ntaub ntawv ntau lawm.
Kauj Ruam 1: Xaiv Lub Sijhawm Ntsuas
Siv lub sijhawm teev tseg xws li ib pawg, ua haujlwm, lub lim tiam lossis hli. Tag nrho cov khoom muag, qhov teeb meem, xa rov qab thiab cov ntaub ntawv tso tawm yuav tsum them rau tib lub sijhawm.
Kauj Ruam 2: xam Net Paste Consumption
Siv cov khoom lag luam ciam teb hauv qab no:
Net muab tshuaj txhuam tau noj=Qhib cov khoom siv tau siv tau + muab tso rau hauv kab - kaw cov khoom siv tau siv tau - muab tshuaj txhuam rov qab rau cov khoom lag luam
Yog hais tias lub tuam txhab cov ntaub ntawv qhov teeb meem twb tau xa rov qab lawm, tshem tawm cov khoom xa rov qab los ntawm - mus rau - lub sij hawm Tshuag. Tsis txhob rho qhov seem seem ob zaug.
Siv net paste loj, tsis tag nrho pob qhov hnyav. Lub thawv tare, lub kaus mom tiv thaiv thiab cov ntim khoom siv tsis tau yuav tsum tsis suav tias yog muab tshuaj txhuam.
Kauj Ruam 3: Xam Tus Nqi Av rau ib Gram
Landed price per gram=Total landed material cost ÷ usable gram tau txais
Cov nqi thauj khoom tuaj yeem suav nrog kev thauj khoom, cov dej num thiab lwm yam nqi thaum lub tuam txhab txoj cai tswjfwm muab lawv rau cov khoom siv.
Kauj Ruam 4: suav cov Boards Zoo
Siv lub hauv paus txais kev xaiv tsis tu ncua. Thaum cov khoom raug kaw los ntawm lub vaj huam sib luag, hloov cov vaj huam sib luag uas tau txais mus rau hauv cov khoom siv PCB thiab suav rau qhov tsis zoo - cim lossis cov khoom seem.
Kauj ruam 5: Xam cov nqi tiag tiag rau PCB zoo
Tus nqi tiag tiag rau PCB zoo=Net muab tshuaj txhuam tau siv × av nqes ib gram ÷ qhov tseeb PCB units
Cov qauv no twb suav nrog cov txiaj ntsig ntawm cov khoom seem thiab cov txiaj ntsig tsis zoo vim tias tus lej suav tsuas muaj qhov zoo tiag tiag.
Kev piav qhia tiag tiag -Lub Sijhawm Piv Txwv
Cov lej hauv qab no yog qhov kev xav tsis zoo thiab suav nrog tsuas yog ua kom pom kev suav.
| Qhib cov khoom siv kab uas siv tau | 200 g |
|---|---|
| Muab tshuaj tso tawm thaum lub sijhawm | 2,000 g |
| Kaw cov khoom siv kab uas siv tau | 150 g |
| Muab tshuaj txhuam rov qab rau hauv Tshuag | 100 g |
| Av nqi | 0.072 txiaj units ib gram |
| Qhov tseeb zoo PCB units | 9,000 |
Net paste noj=200 + 2,000 - 150 - 100=1,950 g
Tag nrho cov nqi muab tshuaj txhuam=1,950 × 0.072=140.40 txiaj units
Tus nqi muab tshuaj tiag tiag rau ib qho zoo PCB=140.40 ÷ 9, 000=0.0156 txiaj units
Tsis muaj kev faib tawm ntxiv ntxiv vim tias 9,000 twb yog qhov zoo tiag tiag - suav suav.
Txoj Kev 2: kwv yees tus nqi ua ntej ntau lawm
Thaum tsis muaj keeb kwm noj khoom haus, kwv yees cov khoom ntim ntawm stencil lossis programmed - tso nyiaj geometry thiab tom qab ntawd ntxiv cov txheej txheem cais - nyiaj poob.
Kauj ruam 1: Xam Theoretical Aperture Volume
Theoretical aperture ntim nyob rau hauv mm³=Sum of aperture area in mm² × stencil thickness in mm
Kev qhib nyuaj yuav xav tau CAD lossis stencil-cov ntaub ntawv tsim. Tshawb xyuas cov txheej txheem xaiv tawm tsam qhov muajsolder paste daim ntawv thov txoj kev.
Kauj Ruam 2: Thov Hloov Ua Haujlwm Zoo
Deposited ntim hauv mm³=Theoretical aperture ntim × hloov efficiency
Qhia pauv kev ua tau zoo raws li tus lej. Piv txwv li, 85% yog nkag li 0.85. Siv SPI lossis cov ntaub ntawv sib piv cov kab thaum muaj es tsis xav tias ib qho nqi rau txhua qhov aperture.
Kauj ruam 3: Hloov Volume rau pawg
Thaum ntim nyob rau hauv mm³ thiab paste ceev yog nyob rau hauv g / cm³:
Deposited mass hauv grams=Deposited ntim hauv mm³ × paste ceev hauv g/cm³ ÷ 1,000
Siv qhov ceev uas tau teev tseg rau cov khoom xaiv uas muaj. Covsolder paste ua haujlwm txoj caipiav qhia tias vim li cas cov hmoov hlau alloy, cov ntsiab lus hlau thiab lub tsheb flux yuav tsum raug kho raws li kev ua tiav.
Kauj ruam 4: Ntxiv cov txheej txheem poob
Tag nrho cov yuav tsum tau muab tshuaj txhuam rau ib lub PCB luam tawm=Deposited huab hwm coj ib PCB + faib cov txheej txheem poob ib PCB
Cov txheej txheem poob yuav suav nrog kev teeb tsa lub tshuab luam ntawv, stencil seem, kev ntxuav hauv qab, kev sim luam tawm, hloov pauv thiab pob khoom seem. Siv cov txheej txheem piv rau thawj zaug, tom qab ntawd hloov qhov kwv yees nrog cov ntaub ntawv tiag tiag.
Kauj Ruam 5: Siv qhov Kev Cia Siab Zoo - Tus Nqi Pab Pawg
Kwv yees tus nqi ib luam PCB=Tag nrho cov yuav tsum tau muab tshuaj txhuam × av nqi ib gram
Tus nqi kwv yees rau ib qho zoo PCB=Tus nqi kwv yees ib tus luam PCB ÷ xav tau zoo- pawg thawj coj saib
Qhov kev hloov pauv hloov pauv no tsuas yog rau tus qauv kev npaj thaum tus lej suav nrog ib pawg thawj coj nkag mus rau tus txheej txheem.
Kev suav ua ntej ua ntej
Cov txiaj ntsig hauv qab no yog hypothetical. Lawv tsis yog cov nqi lag luam lossis cov txheej txheem thoob ntiaj teb.
| Theoretical aperture ntim ib lub vaj huam sib luag |
250 mm³ |
|---|---|
| Hloov efficiency | 0.85 |
| Paste ceev | 4.0 g / cm³ |
| Siv tau PCB units rau ib lub vaj huam sib luag | 4 |
| Muab cov txheej txheem poob rau ib lub vaj huam sib luag | 0.20 g |
| Av nqi | 0.072 txiaj units ib gram |
| Cia siab tias zoo - pawg thawj coj | 0.98 |
Cov ntim ntim rau ib lub vaj huam sib luag=250 × 0.85=212.5 mm³
Deposited mass rau ib lub vaj huam sib luag=212.5 × 4.0 ÷ 1, 000=0.85 g
Qhov hnyav tag nrho rau ib lub vaj huam sib luag=0.85 + 0.20=1.05 g
Cov huab hwm coj tag nrho ib qho PCB luam tawm=1.05 ÷ 4=0.2625 g
Tus nqi ib lub PCB luam tawm=0.2625 × 0.072=0.0189 txiaj units
Kwv yees tus nqi ib qho zoo PCB=0.0189 ÷ 0.98 ≈ 0.0193 txiaj units
Yuav ua li cas tuav Panels thiab ob -Sided PCBs
Vaj huam sib luag- mus rau -PCB hloov dua siab tshiab
Tus nqi muab tshuaj txhuam ib PCB=Tus nqi muab tshuaj txhuam rau ib lub vaj huam sib luag ÷ siv tau PCB units ntawm lub vaj huam sib luag
Tsis txhob faib los ntawm cov nominal array suav thaum phem- cov cim cim lossis qhov chaw tsis muaj neeg txhob txwm ua kom txo tau cov khoom siv tau.
Muab ob npaug rau -Sided Printing
Xam Side A thiab Sab B sib cais vim tias qhov ntim aperture, hloov pauv kev ua haujlwm, teeb poob thiab txawm tias hom paste yuav txawv. Ntxiv cov nqi ntawm ob sab ua ntej siv qhov xav tau kawg qhov zoo - pawg thawj coj.
Cov ntaub ntawv zoo teeb meem uas cuam tshuam qhov tshwm sim
| Cov ntaub ntawv teeb meem | Zoo li Distortion | Kev kho |
|---|---|---|
| Reusable seem tseem suav nrog hauv cov khoom kaw | Consumption yog understated | Tshem tawm cov khoom ib zaug xwb |
| Tag nrho pob qhov hnyav raug kaw raws li qhov hnyav hnyav | Consumption yog overstated | Tshem tawm cov thawv uas tau lees paub |
| Zoo - pawg thawj coj txhais lus hloov ntawm lub sijhawm | Tus nqi tiam sis ua tsis raug | Siv ib daim ntawv lees paub |
| Cov boards zoo tiag tiag tau siv thiab cov txiaj ntsig tau muab faib dua | Tus nqi yog overstated | Tsis txhob siv yield ob zaug |
| Cov ntaub ntawv sib txawv lossis ntau ntau yog sib sau ua ke yam tsis muaj traceability | Kev sib piv ntawm tus neeg muab khoom yuav tsis ntseeg tau | Cais cov ntaub ntawv los ntawm cov khoom thiab ntau |
| Ib - tus nqi tsim nyog lub sij hawm yog sib xyaw nrog kev siv niaj hnub | Recurring unit nqi yog overstated | Amortize los yog qhia cais raws li txoj cai nyiaj txiag |
Yog vim li cas tus nqi ib tug zoo PCB tseem ceeb tshaj tus nqi ib kilogram
Tus nqi qis dua -nqi muab tshuaj yuav dhau los ua tus nqi kim dua thaum nws tsim cov nyiaj tsis ruaj khov, ntxiv cov stencil tu, ua haujlwm ntau dua, siv sijhawm luv dua stencil lub neej lossis ntau dua cov ntaub ntawv sau- tawm.
Solder paste soj ntsuamtuaj yeem muab cov ntaub ntawv ntim thiab kev hloov pauv uas xav tau los ntsuas kev hloov pauv kev ua haujlwm thiab luam ntawv ruaj khov. Dav davsolder kev ntsuam xyuas txoj kevtuaj yeem txhawb nqa cov khoom tsim nyog ua ntej kev txiav txim siab yuav khoom raws li tus nqi ib leeg.
Yuav ua li cas rau Normalize Ob Lub Tswv Yim Cov Lus Qhia
| Nqe lus teb | Dab tsi yuav tsum sib phim lossis piav qhia |
|---|---|
| Alloy | Muaj pes tsawg leeg thiab tso cai kam rau ua |
| Hom hmoov | Hom thiab tswj particle faib |
| Flux system | Ntxuav, residue thiab daim ntawv thov yuav tsum tau |
| Cov ntsiab lus hlau | Cov txheej txheem kuaj thiab teev ntau yam |
| Pob | Net usable nyhav thiab pob hom |
| Chav tsev nqi | Nqe ib puas grams lossis kilogram |
| Cov ntsiab lus lag luam | Nyiaj, MOQ, freight, lub luag hauj lwm thiab hais lus siv tau |
| Txee lub neej | Cia tej yam kev mob thiab tseem tshuav lub neej ntawm tus me nyuam |
| Cov ntaub ntawv | TDS, SDS, CoA, kev ua raws cai thiab cov ntaub ntawv taug qab |
| Kev pab txhawb nqa | Kev sim, teeb meem thiab teb muaj peev xwm |
Covsolder paste hom kev sib pivmuab lub moj khaum dav rau kev ntsuam xyuas cov neeg muag khoom tshaj tus nqi tsev.
Yuav ua li cas txo tus nqi ntawm cov tshuaj txhuam hniav kom tsis txhob muaj qhov tsis zoo
- Yuav raws li kev siv tiag tiag es tsis yog tus nqi so ib leeg.
- Siv FIFO thiab kaw qhib, ua kom sov thiab stencil- siv sijhawm.
- Tswj tus nqi thauj khoom mus rau stencil.
- Standardize teeb thiab hloov ntau npaum.
- Siv cov hmoov hom yuav tsum tau los ntawm qhov tsawg tshaj plaws feature, tsis tau txais qhov zoo tshaj plaws muaj.
- Tshawb xyuas stencil geometry ua ntej hloov mus rau qhov muab tshuaj txhuam kim dua.
- Txhim kho thawj zaug - kis tawm los ntawm kev ntsuas cov txheej txheem tswj.
- Zam kom tsis txhob rov qab los ntawm cov khoom siv tas mus li, tsis muaj kab mob los yog tsis tuaj yeem muab tshuaj.
Cov ntawv sau npe - tawm yuav tsum tau tshuaj xyuas ua ke nrog cov ntaub ntawvsolder paste txee lub neej. Cov khoom tshwj xeeb xws lilead-dawb low-kub solder pastethiabsemiconductor solder pasteyuav tsum tau muab piv rau lawv cov txheej txheem kev muaj peev xwm es tsis yog tawm tsam cov khoom siv dav dav.
Dab tsi suav nrog hauv Solder Paste RFQ
- raws nraim alloy los yog tso cai lwm txoj kev;
- Hom hmoov;
- flux thiab tu yuav tsum tau;
- xoom-halogen lossis lwm yam khoom yuav tsum tau ua;
- printing, dispensing, jetting los yog rework method;
- tsawg tshaj plaws stencil aperture thiab stencil thickness;
- pob hom thiab net hnyav;
- noj txhua hli thiab txhua xyoo;
- xav tau lub neej txee ntawm kev xa khoom;
- lo lus uas peb thiab shipping nqe lus;
- TDS, SDS, CoA thiab traceability cov cai;
- sim kom muaj nuj nqis thiab technical- txhawb kev cia siab;
- quotation validity thiab tus nqi - hloov txoj kev.
Cov khoom lag luam ntsig txog tuaj yeem tshuaj xyuas hauvYIHMA solder paste ntau yam. Cov ntsiab lus ntawm daim ntawv thov tuaj yeem xa los ntawmdaim ntawv nugrau ib qho piv txwv hais.
FAQ
Q: Yuav ua li cas kuv xam cov nqi muab tshuaj txhuam rau ib PCB?
A: Rau lub sijhawm tsim khoom tiag tiag, muab cov khoom sib xyaw ua ke uas siv los ntawm tus nqi tsaws ib gram thiab faib los ntawm cov PCB zoo tiag tiag. Rau kev npaj, kwv yees tus nqi muab tshuaj txhuam rau ib lub PCB luam tawm thiab faib los ntawm qhov xav tau zoo - pawg thawj coj.
Q: Muaj pes tsawg PCBs tuaj yeem ua tau ib kilogram ntawm cov tshuaj txhuam hniav?
A: Tsis muaj tus lej universal. Nws nyob ntawm qhov ntim aperture, kev hloov pauv kev ua haujlwm, ceev, txheej txheem poob, vaj huam sib luag loj thiab tawm los.
Q: Yuav tsum tau muab tso rau hauv cov qauv?
A: Siv cov txiaj ntsig tsuas yog hauv kev npaj ua qauv raws li tus nqi ib lub rooj tsavxwm nkag mus rau ntau lawm. Tsis txhob faib los ntawm cov txiaj ntsig thaum qhov kev suav tiag tiag twb siv cov laug cam zoo li nws tus lej.
Q: Yuav ua li cas yuav tsum tau xam panels?
A: Muab cov nqi muab tshuaj txhuam rau ib lub vaj huam sib luag, tom qab ntawd faib los ntawm cov PCB siv tau ntawm lub vaj huam sib luag. Kho rau qhov phem - cim lossis cov khoom seem.
Q: Puas tuaj yeem siv stencil muab tshuaj rov qab rau hauv lub thawv qub?
A: Tsuas yog thaum cov lus qhia khoom thiab pom zoo cov txheej txheem sab hauv tso cai rau nws. Kev tswj tsis tau rov qab tuaj yeem cuam tshuam rau kev sib kis, oxidation, sib xws thiab traceability.
Q: Puas yog tus nqi qis tshaj ib kilogram tus nqi zoo tshaj?
A: Tsis tas li. Sib piv cov ntaub ntawv tsim nyog siv qhov tseeb lossis kwv yees tus nqi ntawm ib qho PCB zoo, cov txheej txheem ruaj khov, cov khoom lag luam pheej hmoo thiab kev txhawb nqa.
Xaus
Siv cov khoom muag tiag tiag thiab zoo - cov ntaub ntawv hauv pawg tswj hwm los suav cov nqi muab tshuaj txhuam rau ntawm kab tsim. Siv aperture ntim, hloov efficiency, ceev, txheej txheem poob thiab xav tau yield tsuas yog rau preproduction npaj.
Kev suav yog txhim khu kev qha tsuas yog thaum nws cov khoom muag ciam teb, units, kev hloov pauv vaj huam sib luag thiab cov nqi tau teev tseg. Ib tus neeg muag khoom hais lus yuav muaj txiaj ntsig thaum nws hloov mus rau hauv tus nqi tswj ib qho zoo PCB.
