PCBA circuit board waldi faifai baƙar matsala shi ne mafi na kowa kewaye hukumar mugun al'amari, sakamakon PCBA waldi Disc baki saboda da yawa dalilai, amma yawanci lalacewa ta hanyar wadannan dalilai:

1, kushin hadawan abu da iskar shaka: Idan PCBA kushin da aka fallasa zuwa zafi na dogon lokaci, shi zai sa surface na kushin to oxidize, forming wani oxide fim a kan surface na kushin, haifar da baki, saboda haka, a lokacin da adanar PCBA. ya kamata a biya hankali ga kiyaye muhalli bushe, kuma a lokaci guda, PCBA ya kamata a share a cikin lokaci don kauce wa dadewa bayyanar da iska!

2, matsalolin walda: a reflow waldi ko igiyar ruwa soldering, idan walda zafin jiki ne da yawa ko waldi lokaci ya yi tsayi, shi ma zai kai ga hadawan abu da iskar shaka na walda kushin baki sabon abu, wannan dauki yawanci saboda waldi. zafin jiki ya wuce iyakar zafin jiki da aka ba da shawarar na solder, wanda ke haifar da hanzarin tsarin iskar shaka, don haka a cikin tsarin walda dole ne ya dace da ƙayyadaddun aiki don walda!

3, matsalar solder: solder gaba daya ana nufin man siyar, tin, ingancin solder yana da kyau ko mara kyau, idan aka yi amfani da sigar mara kyau, shima zai sanya mai siyar a cikin abubuwa masu cutarwa da najasa da aka saki, yana haifar da baƙar fata, don haka. a cikin zabi na solder, dole ne mu kauce wa yin amfani da low quality solder!

4, Matsalolin tsaftacewa: Gabaɗaya magana, a cikin yanayin amfani da juzu'in ana buƙatar tsaftace allo, don cire ragowar ruwa akan kushin, kuma idan ragowar ruwan ba'a cika cirewa ba, to waɗannan ragowar ruwan na iya raguwa. ko carbonize a babban yanayin zafi, ta yadda pad ya bayyana baki. Saboda haka, lokacin tsaftacewa bayan waldi yana da matukar muhimmanci!

5, matsalolin bangaren: idan ingancin kayan aikin lantarki ba su da kyau, ko kuma kayan aikin fil ɗin ba su da kyau, hakan na iya haifar da sabon abu na diski na walda, don haka, lokacin zabar abubuwan lantarki, dole ne mu zaɓi inganci mai kyau. abubuwan da aka gyara don tabbatar da cewa ingancin sutura da kayan fil na kayan aikin sun cancanta.

A sama shi ne babban dalilin PCBA waldi tire baki, kuma bisa ga daban-daban dalilai, za mu iya kuma zabar daidai kyautata matakan, don haka kamar yadda yadda ya kamata rage matsalar PCBA waldi tire baki, inganta ingancin kayayyakin!