MuZithunzi za SMTpamwamba phiri msonkhano ndondomeko, zinthu zotsalira amapangidwa paMsonkhano wa PCBsoldering chifukwa cha flux ndi solder phala, zomwe zimaphatikizapo zigawo zosiyanasiyana: organic zipangizo ndi ayoni decomposable.Zida za organic zimakhala zowononga kwambiri, ndipo ma ion otsalira pa solder pads angayambitse zolakwika zazifupi.Kuphatikiza apo, zinthu zambiri zotsalira pamasambaPCBAbolodi ndi zauve ndipo sizikukwaniritsa zofunikira zaukhondo za wogwiritsa ntchito.Choncho, n'zosapeŵeka kuyeretsaPCBAbolodi.Komabe,Zithunzi za PCBAsayenera kutsukidwa mwachisawawa, ndipo zofunikira ndi kusamala ziyenera kutsatiridwa mukamagwiritsa ntchito aPCBAmakina oyeretsera.
Pano pali kufotokozera mwatsatanetsatane za zina zomwe zimachitika nthawi zambiriChithunzi cha PCBAkuyeretsa:
Choyamba, pambuyo pa msonkhano ndi soldering wabolodi losindikizidwa zigawo zikuluzikulu, kuyeretsa kuyenera kuchitika posachedwapa kuti achotseretu zotsalira zotsalira, solder, ndi zonyansa zina kuchokera ku bolodi losindikizidwa (chifukwa chotsalira chotsaliracho chidzaumitsa pang'onopang'ono pakapita nthawi, ndikupanga zinthu zowononga monga mchere wa zitsulo za halide).Kumbali inayi, pakuyeretsa, ndikofunikira kuti tipewe oyeretsa owopsa kuti asalowe muzinthu zamagetsi zomwe sizimasindikizidwa kwathunthu kuti ziteteze kuvulaza kapena kuvulaza kobisika kwa zigawozo.
Pambuyo poyeretsa zigawo za bolodi zosindikizidwa, ziyenera kuikidwa mu uvuni pa 40 ~ 50 ° C ndikuphika kwa mphindi 20 ~ 30, ndipo zigawozo zisakhudzidwe ndi manja opanda manja zisanauma.Komanso, kuyeretsa ndondomeko sayenera kukhudza ndizida zamagetsi, zizindikiro, zolumikizira zogulitsira, ndi bolodi losindikizidwa
Nthawi yotumiza: Jan-22-2024