smt reflow qhov cub yog smt rov qab-kawg cov cuab yeej, lub luag haujlwm tseem ceeb yog kub yaj cov tshuaj nplaum, thiab tom qab ntawd cia cov khoom siv hluav taws xob noj tin, thiaj li yuav tsum tau kho ntawm pcb ncoo, yog lismt reflow khoomyog ib qho ntawm peb qhov tseem ceeb ntawm smt, reflow soldering Effects thiab influences tseem ceeb heev rau qhov zoo ntawm cov khoom tsim.
1. Qhov chaw ntawm qhov kub thiab txias tsis tuaj yeem hloov kho arbitrarily.Qhov tsis sib xws ntawm thaj chaw kub uas tau teev tseg saum toj no yog qhov pib txiav txim siab raws li qhov tseeb kho qhov tseeb tias thaj tsam ntawm vuam pcb board suav rau 90% ntawm thaj chaw zoo ntawm cov khoom siv hauv cov vuam siv hluav taws xob, thiab txoj siv kev thauj mus los yog 75cm ± 10cm / S.ntawm.Thaum muaj qhov sib txawv loj hauv thaj tsam ntawm cov txheej txheem pcb board, txoj siv ceev yuav tsum tau kho kom zoo kom ua tiav cov txiaj ntsig zoo.Lub hauv paus ntsiab lus ntawm kev hloov kho yog: thaum thaj tsam ntawm lub rooj tsavxwm pcb me me, qhov ceev ntawm txoj siv mesh yog me ntsis sai dua;Thaum thaj tsam ntawm lub rooj tsavxwm pcb loj, qhov ceev ntawm txoj siv mesh yog me ntsis qeeb, thiab txhua yam yuav ua tiav cov txiaj ntsig zoo;
2. Cov kev ntsuas PID ntawm lub rooj tswj qhov kub thiab txias yuav tsum tsis txhob muab tso tseg;
3. Lub inlet thiab qhov hluav taws xob ntawm lub reflow soldering tshuab yuav tsum zam lub sab nraud ntuj cua tshuab nyob rau hauv lub sij hawm siv, uas yuav cuam tshuam rau lub dynamic kub tshuav nyiaj li cas nyob rau hauv lub cub tawg thiab cuam tshuam covvuamzoo;
4. Thaum xa tawm PCB workpiece los ntawm qhov chaw nres nkoj tawm ntawm lub reflow rauv, nws yog ib qho tsim nyog kom tsis txhob muaj kev sib tsoo ntawm scalding tus neeg teb xov tooj tes;Nws tseem yog ib qho tsim nyog los tiv thaiv PCB pawg thawj coj saib los ntawm kev khaws cia hauv qhov chaw nres nkoj tawm, ua rau lub rooj tsav xwm PCB poob lossis lub rooj tsav xwm PCB ntawm qhov tawm.Tsis tshua muaj zog solder nyob rau hauv kub kub tej yam kev mob SMD Cheebtsam poob vim poob los yog crushing cuam tshuam;
5. Ua haujlwm zoo hauv kev tu txhua hnub ntawm lubvuam tshuabkhoom siv: ntxuav qhov chaw ntawm lubkhoom sivtxhua txhua hnub kom tsis txhob muaj kab mob, nyem lub pob refueling ib zaug ib lub lim tiam nyob rau hauv phau ntawv hom refueling, thiab lubricate cov menyuam saw nrog high-temperature lubricating roj (BIO-30);nyob rau hauv tas mus li ntau lawm, txhua hli Tsis tsawg tshaj li ob zaug: Kos mus ntxiv kub lubricating roj rau lub cub tawg lub cev muaj zog thiab txhua rotating ncej log;
6. Tshawb xyuas seb cov hlau hauv av ntawm lub tshuab vuam puas txuas nrog kev ntseeg siab ua ntej pib lub tshuab txhua hnub;
7. Tom qab kev daws teeb meem, tig lub zog tseem ceeb ntawm cov khoom siv thiab tig lub nceb liab zoo li lub sijhawm kub ntxhov hloov mus rau lub moos kom rov qab mus rau qhov qub ua haujlwm.Thaum lub tshuab raug muab tua, PCB thiab conveying steel mesh siv yuav tsum tsis txhob nres nyob rau hauv lub cub tawg uas tseem nyob rau hauv lub kub kub, thiab conveying siv yuav tsum tau nres tom qab qhov kub ntawm lub tshuab poob lawm.
Post lub sij hawm: Aug-11-2022