SMT los ua ke Ua / Patch Ua Cov Txheej Txheem Sau Txheej txheem
Cov txheej txheem theem pib ntawmsmt sib dhos ua/ thaj ua:
Txhob lo lo ntxhuav (los yog faib tawm) -> Mounting -> (Tua) -> Reflow Soldering -> Kev Tu -> Kev kuaj -> Rov ua haujlwm
Txhob lo lo ntxhuav vijtsam: Nws txoj haujlwm yog luam tawm cov tshuaj pleev txhuam cov kabmob lossis cov kua nplaum ntawm lub ncoo ntawm PCB los npaj rau soldering ntawm Cheebtsam. Cov khoom siv siv yog tshuaj ntsuam tshuab luam ntawv (tshuab luam ntawv tshuaj ntsuam), uas nyob ntawm thawj kab ntawm SMT cov kab ntau lawm.
Kev faib tawm: Nws yog kua nplaum uas poob kua nplaum rau qhov chaw ruaj ntawm PCB. Nws lub ntsiab muaj nuj nqi yog txhim kho cov Cheebtsam rau PCB. Cov cuab yeej siv yog lub tshuab faib tawm nyob ntawm thawj ntawm kab SMT lossis tom qab cov khoom siv tshuaj xyuas.
Mounting: Nws txoj haujlwm yog txhawm rau ua kom qhov chaw ruaj ruaj ntawm cov nplooj ntawv txuas rau qhov chaw ruaj ruaj ntawm PCB. Cov khoom siv siv yog ib qho chaw tso khoom siv nyob hauv qab lub tshuab luam ntawv tshuaj ntsuam hauv SMT cov kab ntau lawm.
Kev tua: Nws txoj haujlwm yog yaj lub kua nplaum nplaum, kom cov nplaim hluavtaws saum npoo thiab PCB pawg tswj hwm tau ruaj khov ua ke. Cov khoom siv siv yog lub qhov cub curing uas nyob tom qab lub tshuab tso rau hauv SMT kab.
Reflow soldering: Lub luag haujlwm yog ua kom yaj lub plav ham, kom cov nplaim deg thiab pawg PCB pawg sib koom ua ke. Cov cuab yeej siv yog lub qhov cub reflow uas nyob tom qab lub tshuab tso rau hauv kab SMT.
Kev Tu Kom Huv: Cov nuj nqi yog tshem tawm cov vuam seem (xws li flux) uas muaj kev phom sij rau tib neeg lub cev ntawm PCB sib dhos. Cov cuab yeej siv yog tshuab ntxhua khaub ncaws, txoj haujlwm tuaj yeem tsau tau, nws tuaj yeem online lossis tsis tau.