PCBA Processing Pads Ba Su Kan Binciken Dalilan Tin ba

Tsarin PCBA kuma ana kiransa da sarrafa guntu, mafi girman Layer ana kiransa sarrafa SMT, sarrafa SMT, gami da SMD, toshewar DIP, gwajin bayan siyar da sauran hanyoyin aiwatarwa, taken pads ɗin ba a kan kwano ya fi girma a cikin Hanyar hanyar sarrafa SMD, manna mai cike da abubuwa daban-daban na allon an samo asali ne daga allon hasken PCB, allon hasken pcb yana da pads mai yawa (wajen sanya abubuwa daban-daban), ta rami (toshe-in), pads ɗin ba tin bane. A halin yanzu halin da ake ciki ya yi ƙasa da ƙasa, amma a cikin SMT ciki har ila yau akwai nau'in matsalolin inganci.
Matsalolin tsari mai inganci, dole ne ya zama dalilai da yawa, a cikin ainihin tsarin samarwa, yana buƙatar dogaro da ƙwarewar da ta dace don tabbatarwa, ɗaya bayan ɗaya don warwarewa, nemo tushen matsalar da warwarewa.

I. Rashin daidaiton ajiya na PCB

Gaba ɗaya, fesa tin a mako zai bayyana iskar shaka, OSP surface jiyya za a iya adana for 3 months, sunken zinariya farantin za a iya adana na dogon lokaci (a halin yanzu irin PCB masana'antu tafiyar matakai ne mafi yawa)

II.Ayyukan da ba daidai ba

Hanyar walda mara kyau, rashin isasshen wutar lantarki, rashin isasshen zafin jiki, rashin isasshen lokacin sake kwarara da sauran matsaloli.

III.Matsalolin ƙira na PCB

Solder pad da kuma hanyar haɗin fata ta jan karfe zai haifar da rashin isasshen dumama pad.

IV.Matsalar juyewa

Ayyukan Flux bai isa ba, PCB pads da kayan aikin lantarki da siyar da bit ɗin ba su cire kayan iskar oxygenation ba, haɓakar haɗin gwiwa bit juyi bai isa ba, yana haifar da ƙarancin wetting, jujjuyawar foda a cikin tin foda ba ta cika zugawa ba, gazawar gama haɗawa cikin juzu'in. (solder manna baya zuwa yanayin zafi lokaci gajere ne)

V. PCB hukumar kanta matsala.

PCB jirgin a cikin factory kafin kushin surface hadawan abu da iskar shaka ba a bi da
 
VI.Maimaita tandamatsaloli

Lokacin preheating yayi gajere sosai, zafin jiki yayi ƙasa, gwangwani bai narke ba, ko lokacin preheating yayi tsayi da yawa, zafin jiki yayi yawa, yana haifar da gazawar aiki.

Daga dalilan da ke sama, sarrafa PCBA wani nau'i ne na aikin ba zai iya zama marar lahani ba, kowane mataki yana buƙatar zama mai tsauri, in ba haka ba akwai manyan matsalolin inganci a cikin gwajin walda na baya, to, zai haifar da adadi mai yawa na ɗan adam. asarar kudi da kayan aiki, don haka sarrafa PCBA kafin gwajin farko da yanki na farko na SMD ya zama dole.