1. Pewani makutidwe ndi okosijeni opanda mkuwa pamwamba

Mkuwa ndiosavuta kusungunuka mumlengalenga, zomwe zimapangitsa kuti PCB solder pedi si conductive kapena kuchepetsa weldability, poika malata pamwamba mkuwa, pamwamba mkuwa akhoza bwino olekanitsidwa mpweya, kukhalabe madutsidwe ndi weldability wa PCB ndi.

2, sungani solder

Njira zina zochizira pamwamba ndizophatikizira: kusungunuka kotentha, filimu yoteteza thupi OSP, malata am’kati, siliva wamankhwala, golide wamagetsi wamagetsi, golide wamagetsi osanja ndi zina zotero; Koma kuti utsi malata mbale yosafuna bwino kutsitsi malata PCB bolodi ndondomeko makhalidwe a kutsitsi malata mbale kuphatikizapo malata mkuwa zigawo ziwiri zitsulo akhoza azolowere zinthu osauka chilengedwe ndi ntchito solder bwino kutentha ndi chilengedwe zikuwononga ndi abwino. Bolodi chimagwiritsidwa ntchito mafakitale zida kulamulira zida kulankhulana ndi zida zankhondo mankhwala malata-sprayed PCB ubwino: mu mwachizolowezi PCB pamwamba chithandizo, malata-sprayed ndondomeko amadziwika ngati solderability bwino, chifukwa pali malata pa pedi, pamene soldering malata , Ndi mbale ya golide kapena rosin ndi njira ya OSP, ndizosavuta. Izi ndizosavuta kuti tithe kusungunula pamanja, kuwotcherera sikophweka.