Solder Paste vs. Solder Wire vs. Solder Bar: Phau Ntawv Qhia Kev Xaiv PCB
Solder paste, solder hlau thiab solder bar yuav siv cov tsev neeg zoo sib xws, tab sis lawv yog tsim rau ntau txoj kev thov thiab cua sov solder. Cov lus nug tseem ceeb tshaj plaws tsis yog daim ntawv twg yog "zoo dua," tab sis daim ntawv twg haum rau cov txheej txheem sib dhos, cov khoom siv, flux system thiab cov khoom siv.
Rau feem ntau cov PCB sib dhos ua haujlwm, qhov pib yog yooj yim: sivsolder muab tshuaj txhuamrau SMT luam ntawv thiab reflow,solder hlaurau tes soldering, kho lossis taw tes -los ntawm - taw tes noj, thiabsolder barrau cov txheej txheem uas siv lub molten solder lauj kaub, xws li yoj, xaiv los yog dip soldering.
Cov ntaub ntawv no feem ntau complementary es tsis interchangeable. Ib qho sib xyaw- thev naus laus zis PCB tuaj yeem siv tag nrho peb lub sijhawm ntau lawm.
Kev sib piv ceev: Muab tshuaj txhuam, Hlau thiab Bar
| Kev txiav txim Point | Solder Paste | Hlau Hlau | Solder Bar |
|---|---|---|---|
| Lub cev daim ntawv | Solder alloy hmoov tov nrog flux- muaj nruab nrab | Nruam hlau, feem ntau muab nrog ib tug flux core | Khoom alloy muab raws li tuav los yog ingots |
| Yam txheej txheem | Stencil printing, dispensing thiab reflow | Tes soldering, robotic point soldering thiab kho | Wave, xaiv thiab dip soldering |
| Txoj kev thov | Sau los yog xa mus rau cov ntaub qhwv ua ntej cua sov | Fed ncaj qha mus rau ib tug neeg rhuab sib koom | Melted nyob rau hauv ib lub lauj kaub solder thiab xa los ntawm cov khoom siv |
| Flux kev npaj | Flux yog ib feem ntawm kev muab tshuaj txhuam | Feem ntau flux-cored; qhov tseem ceeb thiab kev ua haujlwm yog nyob ntawm cov khoom | Cov txheej txheem flux feem ntau yog xaiv thiab siv nyias |
| Lub zog loj | Repeatable solder deposits hla ntau SMT ncoo | Saj zawg zog tswj ntawm tus kheej pob qij txha | Cov khoom ruaj khov ntawm molten solder rau solder- txheej txheem lauj kaub |
| Kev txwv loj | Yuav tsum tau tswj kev cia, deposition thiab cua sov | Tsis tshua muaj txiaj ntsig rau ntau qhov rov ua dua SMT tso nyiaj | Yuav tsum tau siv cov cuab yeej siv tau zoo thiab solder- lub lauj kaub tswj |
Cov neeg nyeem uas xav tau cov ntsiab lus dav dav ntawm cov ntaub ntawv muaj peev xwm kuj tuaj yeem tshuaj xyuas covkev faib cov ntaub ntawv solder.
Thaum Solder Paste Fits Tus Txheej Txheem
Solder muab tshuaj txhuammuab cov hmoov zoo alloy hmoov nrog lub flux nruab nrab. Nws yog ib txwm tso ua ntej cua sov, feem ntau yog los ntawm stencil printing los yog tswj dispensing. Thaum lub sij hawm reflow, lub flux activates, cov hmoov hais yaj thiab cov deposited ntaub ntawv ua lub solder sib koom.
Solder paste feem ntau yog qhov kev xaiv tus qauv thaum lub rooj tsavxwm muaj ntau qhov chaw -mount pads uas yuav tsum tau txais kev tswj, rov ua dua cov khoom siv. Nws yog qhov tshwj xeeb tshaj yog tsim rau SMT ntau lawm vim tias ib lub voj voog luam ntawv tuaj yeem tso cov hlua hla ntau ntawm cov ntaub qhwv ua ntej muab tso rau.
Xaiv solder paste thaum:
- Lub rooj sib txoos siv lub tshuab luam ntawv stencil lossis dispensing system.
- Lub rooj tsavxwm yuav dhau los ntawm cov txheej txheem tswj reflow.
- Fine-pitch los yog me me Cheebtsam yuav tsum tau raws li cov deposit ntim.
- Ntau qhov chaw -mount pob qij txha yuav tsum tau ua tiav hauv ib lub voj voog ntau lawm.
- Cov txheej txheem xav tau kev rov ua dua dua li kev sib koom ua ke - los ntawm - kev sib koom ua ke yooj yim.
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Dab tsi yuav tsum tau lees paub ua ntej xaj
Alloy lub npe ib leeg tsis txaus. Paste cwj pwm kuj nyob ntawm hom hmoov, flux chemistry, viscosity, residue yuav tsum tau, luam ntawv los yog dispensing txoj kev thiab cov txheej txheem thermal npaj. Covua hauj lwm hauv paus ntsiab lus ntawm solder pastepab piav qhia vim li cas cov kev hloov pauv no cuam tshuam rau kev tso nyiaj thiab rov ua haujlwm rov qab.
Kev khaws cia thiab lub neej ua haujlwm kuj txawv ntawm kev tsim. Cov tub yees cia, lub sij hawm thawing, stencil lub neej thiab reflow cov lus pom zoo yuav tsum yog los ntawm cov ntaub ntawv cov khoom tshwj xeeb es tsis yog txoj cai dav dav. Saib cov lus qhia rausolder paste txee lub neej thiab tuavrau cov ntsiab lus tseem ceeb los xyuas.
Rau cov neeg siv muab tshuaj txhuam manually lossis hauv cov khoom me me, txoj kev tseem tseem ceeb. Lub syringe tuaj yeem ua tau zoo rau cov chaw tso nyiaj hauv zos, tab sis nws tsis cia li muab tib yam rov ua dua li stencil luam ntawv. Tshooj lus ntawmyuav ua li cas siv solder pastenpog cov txheej txheem kev siv yooj yim.
Thaum solder hlau yog siv ntau dua
Cov xaim hlau yog muab los ua cov khoom noj tsis tu ncua, feem ntau ntawm cov spool. Ntau cov khoom siv hluav taws xob- qib cov khoom lag luam yog flux-cored, tab sis kev ua haujlwm flux, feem pua ntawm cov tub ntxhais kawm, kev coj cwj pwm seem, alloy thiab txoj kab uas hla txawv ntawm cov khoom. Cov kev qhia tshwj xeeb yuav tsum tau kuaj xyuas ntau dua li qhov xav tau.
Hlau yog qhov ua tau zoo thaum tus neeg teb xov tooj lossis lub tshuab yuav tsum tswj ib qho kev sib koom ua ke ntawm ib lub sijhawm. Nws yog dav siv rau tes soldering, kho, prototypes, los ntawm - qhov sib txuas, connectors, cables, zaum kawg kov-up thiab robotic point soldering.
Xaiv cov hlau nplaum thaum:
- Kev ua haujlwm yog phau ntawv, hauv zos lossis kho- taw qhia.
- Cov pob qij txha ntawm tus kheej xav tau kev tswj ncaj qha.
- Cov txheej txheem siv cov hlau soldering lossis xaim -fed robotic system.
- Lub ntim ntau lawm los yog lub rooj tsavxwm tsim tsis pom zoo rau kev luam ntawv stencil.
- Kov- yuav tsum tau nce tom qab reflow, yoj los yog xaiv soldering.
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Hlau txoj kab uas hla thiab flux yog ib feem ntawm qhov kev txiav txim
Cov hlau uas loj dhau tuaj yeem xa cov khoom siv ntau dhau mus rau lub ncoo me me lossis lub davhlau ya nyob twg. Cov hlau uas zoo heev tuaj yeem ua haujlwm qeeb ntawm cov pob qij txha loj. Flux hom thiab residue yuav tsum muaj feem cuam tshuam seb cov khoom puas haum rau cov khoom thiab cov txheej txheem ntxuav.
Rau kev sib piv dav dav ntawm cov hlau thiab lwm cov ntaub ntawv solder, tshuaj xyuassolder hlau, solder sheets thiab solder balls. Cov khoom xaiv rau hlau thiab bar kuj yog pawg nyob rau hauvsolder hlau thiab solder bar nplooj.
Thaum lub lauj kaub Solder xav tau Bar Solder
Solder bar, tseem hu ua bar solder, yog cov khoom alloy nkag rau hauv cov tuav lossis ingots. Nws feem ntau tsis pub ncaj qha rau ib tus neeg PCB sib koom ua ke. Cov tuav tau ntxiv rau hauv lub lauj kaub sib xyaw ua ke, qhov twg cov hlau yog melted thiab xa los ntawm yoj, xaiv, dip los yog lwm yam solder- txheej txheem lauj kaub.
Txoj cai xaiv tseem ceeb yog li ntawd tsis yog "siab ntim." Bar solder yog tsim nyog thaum twg cov txheej txheem ntau lawm nyob ntawm tus tswj da dej ntawm molten solder. Selective soldering, piv txwv li, tej zaum yuav siv tau nyob rau hauv saj zawg zog los yog sib tov - ib puag ncig ntau lawm thiab ntau lawm khiav.
Xaiv solder bar thaum:
- Cov cuab yeej siv nthwv dej, qhov chaw, lub taub hau lossis lub lauj kaub tais diav.
- Los ntawm - qhov los yog cov pob qij txha xaiv tau ua tiav los ntawm kev sib cuag nrog cov molten solder.
- Cov hlau yuav tsum tau muab ntxiv thiab khaws cia hauv lub lauj kaub.
- Lub Hoobkas tuaj yeem tswj lub lauj kaub kub, kev sib kis, dross thiab txheej txheem flux.
Flux feem ntau yog cov txheej txheem cais
Ntxiv solder bar rau lub lauj kaub tsis nquag muab cov flux xav tau rau kev ua tiav. Flux chemistry, daim ntawv thov ntim, preheating, tiv tauj lub sij hawm thiab tu yuav tsum tau xaiv raws li ib feem ntawm yoj los yog xaiv soldering txheej txheem. Cov lus qhia rauxaiv txoj cai solder fluxpiav qhia txog cov lus nug txog kev sib raug zoo.
Bar solder yog yooj yim rau khaws dua paste nyob rau hauv lub siab hais tias nws tsis muaj tib stencil -lub neej los yog thawing kev txhawj xeeb. Nws tseem yuav tsum tau batch identification, kev tiv thaiv los ntawm kev sib kis, raug alloy segregation thiab tswj lub lauj kaub kom zoo. Tshooj lus ntawmceev faj rau kev siv cov khoom siv soldernpog cov kev pheej hmoo ua haujlwm no kom ntxaws ntxiv.
Peb yam uas yuav hloov tau qhov kev txiav txim
1. Cov khoom siv tseem ceeb tshaj qhov khoom zoo
Ib qho kev qhia paste tsis muaj txiaj ntsig yog tias lub Hoobkas tsis muaj kev tswj hwm los luam tawm, xa tawm thiab rov ua dua. Bar solder tsis haum lub rooj zaum kho qhov tsis muaj solder- txheej txheem lauj kaub. Hlau yog hloov tau, tab sis nws tsis yog qhov hloov tau zoo rau kev luam ntawv stencil hla ntau pua ntawm SMT pads.
2. Tib lub alloy tsis ua rau cov ntaub ntawv sib hloov
Ib tsev neeg alloy tej zaum yuav muaj xws li muab tshuaj txhuam, xaim lossis bar, tab sis cov khoom tiav yog txawv nyob rau hauv txhua daim ntawv. Paste muaj xws li hmoov yam ntxwv thiab ib tug flux nruab nrab. Hlau nthuav qhia txoj kab uas hla, pub tus cwj pwm thiab qhov ua tau zoo- cov ntsiab lus tseem ceeb. Bar yuav tsum ua nyob rau hauv ib tug molten solder system.
Ua ntej xaiv ib daim ntawv, paub meej tias lub luag hauj lwm ntawm tin, nyiaj, tooj liab thiab lwm yam alloys. Tshooj lus ntawmlub luag hauj lwm ntawm alloy Cheebtsam nyob rau hauv soldermuab keeb kwm muaj txiaj ntsig, thaum phau ntawv qhia rauCommon tin solder alloys rau PCB los ua kepab nqaim tsev neeg alloy.
3. Flux thiab tu yuav tsum tau txiav tawm ib qho kev xaiv tsim nyog
Tsis muaj- huv, dej- soluble thiab lwm yam flux systems tsis tsim cov seem zoo tib yam lossis cov kev xav tau tu. Cov khoom siv uas haum rau cov khoom siv kuj tseem yuav tsis tsim nyog yog tias nws cov khoom seem, kev ua haujlwm lossis cov txheej txheem qhov rai tsis sib haum nrog lub rooj sib txoos. Flux compatibility yuav tsum tau soj ntsuam ua ke nrog cov hlau thiab cov khoom, tsis yog tom qab kev yuav khoom.
Kev txiav txim siab Matrix rau Common PCB Assembly Scenarios
| Kev Sib Txuas Lus | Tej yam yuav pib xaiv | Paub meej ua ntej kev pom zoo |
|---|---|---|
| SMT stencil luam ntawv thiab reflow | Solder muab tshuaj txhuam | Hom hmoov, flux, viscosity, cia thiab reflow profile |
| Kev tuav PCB kho lossis txuas ua haujlwm | Solder hlau | Hlau txoj kab uas hla, flux core, residue thiab tip access |
| Robotic point soldering | Solder hlau | Pub sib xws, txoj kab uas hla, spattering thiab flux cwj pwm |
| Vuam soldering | Solder bar | Alloy, lauj kaub kub, dross, paug thiab txheej txheem flux |
| Selective soldering | Solder bar | Nozzle txheej txheem, kev sib cuag lub sij hawm, flux daim ntawv thov thiab board clearance |
| Sib xyaw SMT thiab dhau ntawm - qhov rooj | Kev sib xyaw ua ke | Txheej txheem txheej txheem, residue compatibility thiab kov -txoj kev |
Tseem ceeb Exceptions rau cov cai yooj yim
Cov lus pom zoo ib txwm yog cov ntsiab lus pib muaj txiaj ntsig, tsis txwv kev txwv.
- Qee qhov chaw-mount cov khoom tuaj yeem ntsia tau lossis hloov nrog cov hlau nplaum thaum siv tes los yog rov ua haujlwm dua.
- Solder paste tuaj yeem muab faib rau cov qauv, cov khoom me me thiab kho SMD hauv zos thaum tso nyiaj thiab cua sov tswj.
- Qee qhov dhau los ntawm - cov khoom hauv lub qhov yuav raug ua tiav los ntawm tus pin- hauv - muab tshuaj los yog cuam tshuam rov qab thaum PCB tsim thiab txheej txheem tsim nyog.
- Robotic soldering tuaj yeem siv xaim hauv kev tsim khoom siv hluav taws xob, yog li cov hlau tsis txwv rau kev tuav haujlwm.
- Selective soldering tej zaum yuav siv bar solder nyob rau hauv siab -sib tov ntau lawm, tsis tsuas yog nyob rau hauv pa siab - ntim kab.
Cov kev zam no yog vim li cas qhov kev txiav txim zaum kawg yuav tsum ua raws li cov txheej txheem ua tiav es tsis yog daim ntawv lo lus yooj yim.
Kev sib xyaw ua ke -Technology Piv txwv
Xav txog lub PCB nrog rau saum npoo -mount resistors thiab integrated circuits, ob peb los ntawm - qhov connectors thiab ib tug me me ntawm cov pob qij txha uas nyuaj rau automated khoom mus cuag.
- Solder paste yog luam tawm rau ntawm SMT pads, cov khoom raug muab tso rau thiab lub rooj tsavxwm rov qab.
- Cov los ntawm - qhov sib txuas yog ua tiav los ntawm nthwv dej los yog xaiv soldering siv solder bar nyob rau hauv cov khoom lub lauj kaub.
- Cov xaim hlau yog siv rau qhov kawg kov- nce, txuas tsis tau lossis kho tom qab.
Lub rooj tsavxwm no tsis muaj ib qho "zoo tshaj plaws solder." Txhua daim ntawv raug xaiv rau theem ntau lawm. Kev tswj kom zoo kuj tseem yuav suav nrogsolder paste tshuaj xyuas thaum sib dhos PCBua ntej reflow.
Kev xaiv yuam kev
Xaiv los ntawm cov duab ib leeg
Daim ntawv ntawm lub cev yog qhov yooj yim pom, tab sis daim ntawv thov thiab cua sov txoj kev txiav txim siab seb cov khoom puas siv tau.
Ordering los ntawm alloy lub npe nkaus xwb
Alloy muaj pes tsawg leeg tsuas yog ib feem ntawm cov specification. Muab tshuaj txhuam hmoov thiab flux, hlau txoj kab uas hla thiab cov tub ntxhais, los yog bar-lub lauj kaub tais diav tej zaum yuav hloov qhov tshwm sim.
Tsis quav ntsej flux thiab residue compatibility
Ib qho khoom siv tsim nyog tseem tuaj yeem tsim teeb meem txheej txheem yog tias cov dej ntws tawm, cov khoom seem lossis kev tu kom tsis haum rau kev sib dhos.
Piv txwv tias hlau tuaj yeem hloov stencil luam ntawv
Hlau muaj kev tswj hwm hauv zos zoo heev tab sis tsis nquag rov tsim dua qhov nrawm thiab tso nyiaj sib xws ntawm SMT txheej txheem luam ntawv.
Kev yuav bar solder yam tsis muaj lub lauj kaub- kev npaj tswj
Wave thiab xaiv soldering yuav tsum tau tswj cov alloy yog leej twg, lub lauj kaub kub, paug, dross thiab replenishment. Lub bar nws tus kheej tsuas yog ib feem ntawm cov txheej txheem.
Dab tsi suav nrog hauv Solder Material RFQ
Kev thov kom muaj txiaj ntsig zoo yuav tsum muab cov ntaub ntawv txheej txheem txaus rau tus neeg muag khoom kom pom zoo ib yam khoom tshwj xeeb es tsis yog cov khoom siv dav dav.
- PCB los ua ke txoj kev: SMT reflow, tes soldering, neeg hlau soldering, yoj, xaiv, dip los yog tov txheej txheem.
- Yam hom thiab kwv yees qhov sib koom ua ke.
- Daim ntawv yuav tsum tau khoom: muab tshuaj txhuam, hlau los yog bar.
- Nyiam alloy los yog yuav tsum tau melting ntau yam.
- Lead -dawb lossis leaded xav tau.
- Flux lossis residue yuav tsum tau, nrog rau kev tu kom huv.
- Rau paste: luam ntawv los yog dispensing method, pob hom thiab cov xwm txheej khaws cia.
- Rau hlau: txoj kab uas hla, spool loj thiab phau ntawv los yog robotic feed method.
- Rau bar: solder- txheej txheem lauj kaub, kev khiav hauj lwm kub thiab xav tau noj.
- Siv tau cov neeg siv khoom, kev ntseeg siab lossis kev ua raws cai.
- Cia siab tias qhov kev txiav txim ntim thiab ntim nyiam.
Rau kev pom zoo cov khoom raws li cov ntsiab lus no, siv lubdaim ntawv nug onlinelos yoghu rau pab neeg YIHMA.
FAQ
Q: Can solder paste hloov cov hlau nplaum?
A: Tsuas yog hauv cov ntawv thov xaiv. Muab tshuaj txhuam yog pab tau rau SMT deposits thiab qee qhov chaw rework, thaum hlau feem ntau muab kev sib koom ua ke zoo dua - los ntawm - kev sib koom ua ke rau tes soldering, connectors thiab ntau yam los ntawm - kho qhov.
Q: Puas yog solder bar muaj flux?
A: Solder bar feem ntau yog cov khoom siv hlau rau lub lauj kaub molten. Wave thiab selective soldering ib txwm siv cov txheej txheem sib cais thiab siv cov txheej txheem flux.
Q: Puas yog tib lub alloy tuaj yeem muab tshuaj txhuam, xaim thiab bar?
A: Qee cov tsev neeg hlau tuaj yeem tsim ua ntau hom. Cov lus qhia ua tiav tseem sib txawv vim tias muab tshuaj txhuam nrog cov hmoov thiab cov khoom siv flux, xaim muaj cov khoom noj thiab cov yam ntxwv tseem ceeb, thiab bar yog tsim los rau cov txheej txheem molten solder.
Q: Daim ntawv twg yog qhov zoo tshaj rau kev kho PCB?
A: Solder hlau feem ntau yog qhov yooj yim tshaj plaws pib xaiv rau kev kho dav dav. Solder paste tuaj yeem pab tau rau kev hloov SMD hauv zos thaum tus neeg siv tuaj yeem tswj cov kev tso nyiaj thiab cov cua sov.
Q: Daim ntawv twg yog siv los ntawm - qhov khoom?
A: Ib tus neeg dhau los ntawm - qhov sib koom ua ke tuaj yeem raug soldered nrog hlau. Cov pab pawg ntawm cov pob qij txha tuaj yeem ua tiav los ntawm nthwv dej lossis xaiv soldering nrog bar solder. Qee cov qauv tsim qauv tuaj yeem siv tus pin-hauv- muab tshuaj txhuam.
Q: Puas yog solder paste tsuas yog haum rau ntau lawm?
A: Tsis yog. Muab tshuaj txhuam tuaj yeem muab faib rau cov qauv, cov khoom me me thiab rov ua haujlwm dua. Nws tseem xav tau kev tso dej kom tsim nyog, khaws cia thiab tswj cua sov.
Xaus
Solder paste, solder hlau thiab solder bar daws cov txheej txheem sib txawv. Muab tshuaj txhuam yog qhov pib qhov qub rau kev tswj SMT tso nyiaj thiab rov ua dua. Hlau yog siv tau rau tes soldering, kho thiab taw tes - los ntawm - taw tes noj. Bar solder belongs rau cov khoom siv uas siv lub lauj kaub molten.
Qhov kev xaiv raug yog nyob ntawm ntau tshaj li cov alloy muaj pes tsawg leeg. Muab cov khoom siv rau hauv daim ntawv thov txheej txheem, khoom siv, flux system, tu yuav tsum tau, ntau lawm tej yam kev mob thiab kev cia siab zoo. Hauv kev sib xyaw- cov cuab yeej thev naus laus zis, siv ntau tshaj ib daim ntawv yog feem ntau cov lus teb ua tau zoo tshaj.
