PCB board thaum lub sij hawm vuam yuav tsim cov cua qhov, qhov no feem ntau hu ua npuas. Reflow welding thiab yoj soldering feem ntau muaj cua qhov, ntau qhov cua tuaj yeem ua rau puas rau PCB pawg thawj coj saib. Yog li yuav ua li cas tiv thaiv qhov zoo li ntawm huab cua hauv PCB ua thiab vuam?
Kauj Ruam 1 Ci
Ci PCBS thiab cov khoom uas raug huab cua ntev ntev los tiv thaiv kev ya raws.
2. Kev tswj cov tshuaj txhuam hniav
Vuam muab tshuaj txhuam uas muaj dej kuj muaj qhov porosity thiab hlaws. Ua ntej, xaiv ib qho zoo solder paste. Qhov kub thiab txias rov qab thiab sib tov ntawm cov tshuaj txhuam hniav yuav tsum tau ua raws li cov kev cai nruj. Kev nthuav tawm ntawm cov tshuaj nplaum rau saum cua yuav tsum luv li sai tau. Reflow vuam yuav tsum tau nqa tawm nyob rau hauv lub sij hawm tom qab luam ntawv ntawm solder paste.
3. Rhiav cov av noo tswj
Cov av noo ntawm lub rooj cob qhia yuav tsum tau saib xyuas raws li kev npaj thiab tswj ntawm 40-60%.
4. Teem lub qhov cub kom tsim nyog qhov kub thiab txias nkhaus
Kev ntsuas kub ntawm lub cub tawg ob zaug ib hnub, txhim kho qhov kub ntawm qhov kub ntawm qhov nkhaus, qhov kub thiab txias tsis tuaj yeem ceev heev.
5. Flux txau
Wave soldering, flux txhaj tshuaj yuav tsum tsis txhob ntau dhau, thiab txhaj tshuaj yuav tsum tsim nyog.
6. Ua kom zoo rau lub cub tawg kub nkhaus
Qhov kub ntawm thaj chaw preheating yuav tsum ua tau raws li qhov yuav tsum tau ua, thiab yuav tsum tsis txhob qis dhau, yog li cov flux yog tag nrho volatilized, thiab lub cub tawg ceev yuav tsum tsis txhob ceev heev.
Muaj ntau yam uas yuav cuam tshuam rau vuam npuas hauv cov txheej txheem PCB. Los ntawm kev tsim PCB, qhov kub thiab txias ntawm qhov cub, qhov siab yoj qhov siab, PCB av noo, saw ceev, solder muaj pes tsawg leeg, flux (txhaj tshuaj loj) thiab lwm yam ntawm kev tshuaj xyuas, koj tuaj yeem tau txais cov txheej txheem zoo dua tom qab ntau qhov kev debugging.