1. Cov kauj ruam ua haujlwm ntawmyoj soldering tshuab.
1).Wave soldering khoomkev npaj ua ntej welding
Xyuas seb PCB puas yuav tsum tau ua kom ntub dej, seb cov pob qij txha puas yog oxidized, deformed, thiab lwm yam.lub flux txuas nrog lub nozzle interface ntawm lub sprayer.
2).Pib-up ntawm cov khoom siv yoj soldering
Kho qhov dav ntawm lub nthwv dej soldering tshuab tsav siv (lossis fixture) raws li qhov dav ntawm lub rooj tsav xwm luam tawm;tig lub zog thiab kev ua haujlwm ntawm txhua tus kiv cua ntawm lub tshuab yoj soldering.
3).Teem lub welding tsis ntawm cov khoom siv yoj soldering
Flux Flow: Nyob ntawm seb cov flux hu rau hauv qab ntawm PCB li cas.Cov flux yuav tsum tau muab sib npaug rau hauv qab ntawm PCB.Pib los ntawm lub qhov ntawm lub PCB, yuav tsum muaj me me ntawm flux ntawm qhov chaw ntawm lub qhov nkag los ntawm lub qhov mus rau lub ncoo, tab sis tsis nkag mus
Preheating kub: teem raws li qhov tseeb qhov teeb meem ntawm lub microwave qhov cub preheating cheeb tsam (qhov tseeb kub nyob rau saum npoo ntawm PCB yog feem ntau 90-130 ° C, qhov kub ntawm lub phaj tuab yog lub sab sauv txwv rau lub assembled board nrog ntau dua. SMD Cheebtsam, thiab qhov kub nce qhov nqes qis dua lossis sib npaug li 2 ° C / S;
Conveyor siv ceev: raws li qhov sib txawv nthwv dej soldering tshuab thiab PCB teeb tsa yuav tsum tau soldered (feem ntau 0.8-1.60m / min);solder kub: (yuav tsum yog qhov tseeb ncov kub tso rau ntawm lub ntsuas (SN-Ag-Cu 260 ± 5 ℃, SN-Cu 265 ± 5 ° C). los yog LCD yog hais txog 3 ° C siab tshaj qhov kub siab tshaj plaws;
Peak qhov siab ntsuas: thaum nws tshaj hauv qab ntawm PCB, kho rau 1/2 ~ 2/3 ntawm PCB thickness;
Vuam lub kaum sab xis: kis tau tus mob inclination: 4.5-5.5 °;Lub sijhawm vuam: feem ntau 3-4 vib nas this.
4).Cov khoom yuav tsum tau yoj soldered thiab tshuaj xyuas (tom qab tag nrho cov vuam tsis ncav cuag tus nqi)
Maj mam muab lub rooj tsavxwm luam tawm rau ntawm txoj siv conveyor (lossis fixture), lub tshuab cia li txau rib flux, preheats, yoj solders thiab txias;cov ntawv luam tawm Circuit Board txuas nrog ntawm qhov tawm ntawm lub yoj soldering;raws li lub Hoobkas tshuaj xyuas tus qauv.
5).Kho qhov vuam tsis raws li PCB vuam cov txiaj ntsig
6).Ua cov khoom siv txuas txuas ntxiv, txuas cov ntawv luam tawm ntawm lub qhov hluav taws xob ntawm yoj soldering, muab tso rau hauv lub thawv los tiv thaiv zoo li qub tom qab kev tshuaj xyuas, thiab xa cov kev tswj xyuas tom ntej;Thaum lub sij hawm txuas txuas txuas ntxiv, txhua daim ntawv luam tawm yuav tsum raug tshuaj xyuas, thiab cov khoom siv vuam tsis zoo yuav tsum tau rov ua dua tam sim ntawd.Yog tias tseem muaj qhov tsis xws luag tom qab vuam, qhov ua rau yuav tsum tau pom, thiab vuam yuav tsum tau txuas ntxiv tom qab kho cov txheej txheem tsis.
2. Cov ntsiab lus rau kev mloog hauv kev ua haujlwm yoj soldering.
1).Ua ntej yoj soldering, xyuas cov txheej txheem ua haujlwm ntawm cov khoom siv, qhov zoo ntawm cov ntawv luam tawm Circuit Board yuav tsum tau soldered thiab plug-in raws li txoj cai.
2).Nyob rau hauv tus txheej txheem ntawm yoj soldering, koj yuav tsum nco ntsoov ua tib zoo saib xyuas cov khoom siv, ntxuav cov oxides ntawm lub tin da dej nyob rau lub sij hawm, ntxiv polyphenylene ether los yog noob hnav roj thiab lwm yam antioxidants, thiab ntxiv rau lub solder nyob rau hauv lub sij hawm.
3).Tom qab yoj soldering, qhov vuam zoo yuav tsum tau kuaj xyuas los ntawm thaiv.Rau ib tug me me ntawm cov uas ploj lawm soldering thiab bridging soldering cov ntsiab lus, phau ntawv kho vuam yuav tsum tau nqa tawm nyob rau hauv lub sij hawm.Yog tias muaj ntau qhov teeb meem ntawm vuam zoo, nrhiav cov laj thawj hauv lub sijhawm.
Wave soldering yog cov txheej txheem kev lag luam paub tab.Txawm li cas los xij, nrog rau ntau daim ntawv thov ntawm cov khoom siv saum npoo av, cov txheej txheem sib xyaw ua ke ntawm cov khoom sib txuas thiab cov khoom siv saum npoo av sib sau ua ke ntawm lub rooj sib tham hauv tib lub sijhawm tau dhau los ua ib qho kev sib dhos hauv cov khoom siv hluav taws xob, yog li muab cov txheej txheem ntau dua. rau yoj soldering tshuab.Txhawm rau kom ua tau raws li qhov yuav tsum tau ua nruj me ntsis, tib neeg tseem niaj hnub tshawb nrhiav txoj hauv kev los txhim kho qhov zoo ntawm yoj soldering, suav nrog: ntxiv dag zog rau kev tswj xyuas zoo ntawm cov ntawv luam tawm Circuit Board tsim thiab cov khoom ua ntej soldering;txhim kho cov txheej txheem cov ntaub ntawv xws li flux thiab solder Zoo tswj;Thaum lub sij hawm vuam txheej txheem, optimize cov txheej txheem tsis xws li preheating kub, vuam khiav inclination, yoj qhov siab, vuam kub thiab hais txog.
Post lub sij hawm: Jun-08-2023