Ma board ozungulira PCB amagwiritsidwa ntchito kwambiri ku China, ndipo zowononga zidzapangidwa panthawi yopanga mapepala osindikizidwa, kuphatikizapo fumbi ndi zinyalala popanga zinthu monga zotsalira za flux ndi zomatira.Ngati bolodi la pcb silingatsimikizire bwino malo oyera, kukana ndi kutayikira kumapangitsa gulu la pcb kulephera, zomwe zimakhudza moyo wautumiki wa chinthucho.Choncho, kuyeretsa pcb dera bolodi pa ndondomeko kupanga ndi sitepe yofunika.
Kuyeretsa kwamadzi am'madzi nthawi zambiri kumagwiritsa ntchito zosungunulira organic ndi madzi opangidwa ndi deionized, kuphatikiza kuchuluka kwa zinthu zogwira ntchito ndi zowonjezera.Kuyeretsa uku kuli pakati pa kuyeretsa zosungunulira ndi kuyeretsa madzi.Zotsukirazi ndi zosungunulira organic, zosungunulira zoyaka moto, kung'anima kwambiri, kawopsedwe kakang'ono, komanso zotetezeka kuti zigwiritsidwe ntchito, koma ziyenera kutsukidwa ndi madzi ndikuumitsa mpweya.
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Ukadaulo woyeretsera madzi ndiye njira yachitukuko chaukadaulo wamtsogolo, ndipo ndikofunikira kukhazikitsa gwero lamadzi oyera ndikutulutsa msonkhano wamankhwala amadzi.Kugwiritsa ntchito madzi ngati sing'anga yoyeretsera, kuwonjezera ma surfactants, zowonjezera, corrosion inhibitors ndi chelating agents m'madzi kuti apange mndandanda wazinthu zoyeretsera madzi.Zosungunulira zamadzimadzi ndi zowononga zopanda polar zimatha kuchotsedwa.
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Amagwiritsidwa ntchito popanga soldering popanda kuyeretsa flux kapena solder phala.Pambuyo soldering, amapita mwachindunji ndondomeko yotsatira kuyeretsa, salinso ufulu kuyeretsa luso panopa ambiri ntchito njira zamakono, makamaka mafoni kulankhulana kwenikweni ndi nthawi imodzi ntchito njira m'malo ODS.Kuyeretsa zosungunulira makamaka ntchito zosungunulira kupasuka kuchotsa zonyansa.Kuyeretsa zosungunulira kumafuna zida zosavuta chifukwa cha kusinthasintha kwake komanso kusungunuka kwamphamvu.
Nthawi yotumiza: May-18-2022