PCB PCBA rau kev lag luam khoom siv

                                              

FAQ

1      Q:Rau ODM kev pabcuam, yog tias koj tuaj yeem muab software tsim?

        A:Yog lawm, peb tuaj yeem muab tsis tau tsuas yog software tsim, tab sis kuj tsim firmware.

2      Q:Dab tsi'Puas yog koj li L/T rau PCBAs?

A: Qauv yog 4W, rau kev txiav txim loj, cov ntaub ntawv feem ntau xav tau 8W, thiab cov khoom xav tau 4W. Cov ntaub ntawv uas ntev dua 8W peb tuaj yeem npaj rau cov neeg siv khoom. Feem ntau ntawm cov ntaub ntawv peb tuaj yeem khaws cia rau cov neeg siv khoom dawb, tab sis peb yuav tsum paub meej tias cov ntaub ntawv tshwj xeeb thiab tsuas yog siv los ntawm koj lub tuam txhab uas lwm tus neeg siv khoom siv tsis tau, uas xav tau koj them cov nyiaj tso cia.

 

Peb lub peev xwm PCBA yog dab tsi

 

Peb muaj dab tsi

 

Peb muaj dab tsi

 

ISO9001 

              

ISO 13485

        

ISO 14001

CE

 UL  

                           

  BQC tau pom zoo los ntawm GE, WAL-MART, UL, IKEA, ISO13485, ISO9001, ISO14001, thiab lwm yam.thiab yuav tau txais IATF16949 sai li sai tau.

Peb ua li cas

 

 

 

 

Shipping thiab pob

Exhibition

Peb tau koom nrog kev nthuav qhia nto moo xyoo dhau los, thiab tau txais lub koob npe nrov los ntawm cov kws tshaj lij, peb tseem sim ua qhov zoo tshaj plaws!

PCBA paub qhia

Nyob rau hauv cov txheej txheem ntawm PCBA ua, kev xaiv ntawm PCBA tin penetration kuj tseem ceeb heev. Nyob rau hauv cov txheej txheem los ntawm lub qhov plug-in, tsis zoo tin nkag ntawm PCB board tuaj yeem yooj yim ua rau muaj teeb meem xws li kev sib koom ua ke, tin tawg thiab txawm tias poob.

 

Peb yuav tsum paub ob lub ntsiab lus hais txog PCBA tin nkag

 

1,Cov kev xav tau ntawm PCBA tin penetration

Raws li IPC tus qauv, qhov yuav tsum tau ntawm PCBA tin nkag mus rau hauv lub qhov sib koom ua ke feem ntau yog ntau tshaj 75 feem pua. Uas yog hais tias, tus qauv ntawm solder nkag mus rau PCBA yog tsis tsawg tshaj li 75 feem pua ​​ntawm lub aperture qhov siab (phaj thickness) nyob rau hauv lub pom kev soj ntsuam ntawm lub welded nto, thiab qhov nkag mus ntawm PCBA yog tsim nyog nyob rau hauv ntau yam ntawm 75 feem pua ​​{{ 4}} feem pua. Txawm li cas los xij, thaum lub qhov dhau los txuas nrog cov txheej txheem cua sov lossis txheej txheej txheej txheej txheej txheej txheej txheej txheej, yuav tsum muaj ntau tshaj 50 feem pua ​​​​ntawm PCBA tin penetration.

2,Cov yam ntxwv cuam tshuam rau tin permeation ntawm PCBA

 

Qhov tsis zoo tin nkag ntawm PCBA feem ntau cuam tshuam los ntawm cov khoom siv, cov txheej txheem yoj soldering, flux thiab phau ntawv vuam.

 

Cov xwm txheej cuam tshuam rau tin permeation ntawm PCBA tau txheeb xyuas

 

1. Khoom siv

 

Kub kub molten tin muaj ib tug muaj zog permeability, tab sis tsis yog tag nrho cov soldered hlau (PCB pawg thawj coj saib, Cheebtsam) tuaj yeem nkag mus rau hauv, xws li txhuas, nws qhov chaw feem ntau yuav cia li tsim cov txheej tiv thaiv ntom ntom, thiab cov qauv hauv molecular kuj ua rau nws nyuaj rau. lwm cov molecules nkag mus. Thib ob, yog tias muaj txheej oxide nyob rau saum npoo ntawm cov hlau yuav tsum tau welded, nws tseem yuav tiv thaiv kev nkag mus ntawm cov molecules. Peb feem ntau yog siv cov tshuaj flux, los yog cov ntaub qhwv ntsej kom huv.

 

2. Wave soldering txheej txheem

Qhov tsis zoo tin nkag mus rau PCBA yog ncaj qha ntsig txog cov txheej txheem yoj soldering. Re optimize lub vuam tsis xws li yoj qhov siab, kub, vuam lub sij hawm los yog txav ceev. Ua ntej tshaj plaws, lub kaum sab xis ntawm txoj kab tsheb ciav hlau yuav tsum raug txo kom raug, thiab qhov siab ntawm yoj crest yuav tsum tau nce ntxiv los txhim kho qhov kev sib cuag ntawm cov kua tin thiab solder kawg; ces, qhov kub ntawm yoj soldering yuav tsum tau nce. Feem ntau hais lus, qhov kub siab dua yog, qhov muaj zog permeability ntawm tin yog. Txawm li cas los xij, qhov ntsuas kub ntawm cov khoom yuav tsum raug coj mus rau hauv tus account. Thaum kawg, qhov ceev ntawm txoj siv conveyor tuaj yeem txo qis thiab preheating thiab vuam lub sijhawm tuaj yeem ua kom cov flux tag nrho tshem tawm oxidation Lub solder sib koom yog wetted thiab cov tin noj tau nce.

3. Flux

Flux kuj yog ib qho tseem ceeb cuam tshuam rau qhov tsis zoo tin nkag ntawm PCBA. Flux tsuas yog ua lub luag haujlwm ntawm kev tshem tawm oxide ntawm PCB thiab cov khoom siv thiab tiv thaiv reoxidation thaum vuam txheej txheem. Kev xaiv tsis zoo ntawm cov flux, cov txheej tsis sib xws thiab tsawg dhau ntawm cov flux yuav ua rau cov khoom tsis zoo. Lub flux ntawm cov npe nrov tuaj yeem xaiv tau, qhov ua kom thiab ntub dej yuav ntau dua, uas tuaj yeem tshem tawm cov oxide uas nyuaj rau tshem tawm; xyuas cov flux nozzle, lub nozzle puas yuav tsum tau hloov nyob rau hauv lub sij hawm, los xyuas kom meej tias lub PCB board nto yog coated nrog tsim nyog tus nqi ntawm flux, thiaj li mus ua si lub soldering nyhuv ntawm flux.

4. Kev tuav vuam

Nyob rau hauv qhov tseeb plug-in welding kev soj ntsuam zoo, ib feem ntawm cov weldments tsuas yog muaj cov nto solder ua lub khob hliav qab, tab sis tsis muaj tin nkag mus rau hauv lub qhov. Hauv kev sim ua haujlwm, nws tau lees paub tias ntau qhov ntawm cov khoom no yog cov khoom siv tsis raug, uas yog ntau dua nyob rau hauv phau ntawv plug-in welding, vim tias qhov kub ntawm cov hlau soldering tsis tsim nyog thiab lub sijhawm vuam yog luv heev. Kev tsis zoo ntawm cov tin nkag ntawm PCBA yog ib qho yooj yim uas yuav ua rau cov khoom siv tsis raug, uas ua rau tus nqi kho dua. Yog hais tias qhov yuav tsum tau ntawm PCBA tin penetration yog siab thiab vuam zoo yog nruj, xaiv yoj soldering yuav siv tau, uas yuav ua tau zoo txo ​​qhov teeb meem ntawm tsis zoo solder nkag mus rau PCBA.

 

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