Soldering ndi imodzi mwazinthu zofunika kwambiri pakupanga zinthu zamagetsi kwa opanga pcb.Ngati palibe chitsimikiziro chofananira chamtundu wa soldering, zida zilizonse zamagetsi zopangidwa bwino zidzakhala zovuta kukwaniritsa zolinga zopangira.Choncho, pa kuwotcherera ndondomeko, ntchito zotsatirazi ziyenera kuchitidwa:
1. Ngakhale kuwotcherera kuli kwabwino, malo owotcherera ayenera kukhala oyera.
Chifukwa cha kusungirako kwa nthawi yaitali ndi kuipitsa, mafilimu owopsa a oxide, madontho a mafuta, ndi zina zotero akhoza kupangidwa pamwamba pa mapepala a solder.Choncho, pamwamba ayenera kutsukidwa pamaso kuwotcherera, apo ayi n'zovuta kutsimikizira khalidwe.
2. Kutentha ndi nthawi yowotcherera ziyenera kukhala zoyenera.
Pamene solder ndi yunifolomu, solder ndi solder zitsulo zimatenthedwa ku kutentha kwa soldering kotero kuti solder yosungunuka imalowetsedwa ndi kufalikira pamwamba pa zitsulo zachitsulo ndikupanga zitsulo.Choncho, pofuna kutsimikizira mgwirizano wamphamvu wa solder, m'pofunika kukhala ndi kutentha koyenera kwa soldering.Pakutentha kokwanira, solder imatha kunyowetsedwa ndi kufalikira kuti ipange aloyi wosanjikiza.Kutentha kwakwera kwambiri kuti tisokere.Soldering nthawi imakhala ndi chikoka chachikulu pa solder, wettability wa soldered zigawo zikuluzikulu ndi mapangidwe mgwirizano wosanjikiza.Kudziwa bwino nthawi yowotcherera ndiye chinsinsi cha kuwotcherera kwapamwamba.
3. Malumikizidwe a solder ayenera kukhala ndi mphamvu zokwanira zamakina.
Pofuna kuonetsetsa kuti welded mbali si kugwa ndi kumasula pansi kugwedera kapena kukhudza, m'pofunika kukhala okwanira mawotchi mphamvu ya solder olowa.Kuti ma solder azitha kukhala ndi mphamvu zamakina okwanira, njira yokhotakhota zotsogola za zigawo zomwe zidagulitsidwa zimatha kugwiritsidwa ntchito, koma solder yochulukira siyenera kudziunjikira, zomwe zitha kuyambitsa mabwalo amfupi pakati pa solder ndi mabwalo amfupi.Magulu a solder ndi ma solder joints.
4. Kuwotcherera kuyenera kukhala kodalirika ndikuonetsetsa kuti magetsi akuyenda bwino.
Kuti ma solder azitha kukhala ndi ma conductivity abwino, ndikofunikira kuti mupewe kusokonekera kwabodza.Kuwotcherera kumatanthauza kuti palibe kamangidwe ka aloyi pakati pa solder ndi pamwamba pa solder, koma amangotsatira pamwamba zitsulo soldered.Mu kuwotcherera, ngati gawo lokha la aloyi limapangidwa ndipo zina zonse sizinapangidwe, mgwirizano wa solder ungathenso kudutsa panopa mu nthawi yochepa, ndipo zimakhala zovuta kupeza mavuto ndi chida.Komabe, m'kupita kwa nthawi, malo omwe samapanga alloy adzakhala oxidized, zomwe zidzatsogolera ku zochitika za nthawi yotsegula ndi kupasuka, zomwe zingayambitse mavuto a khalidwe la mankhwala.
Mwachidule, mgwirizano wabwino wa solder uyenera kukhala: mgwirizano wa solder ndi wowala komanso wosalala;wosanjikiza wa solder ndi yunifolomu, woonda, woyenera kukula kwa pad, ndipo ndondomeko ya olowa ndi yosamveka;solder ndi yokwanira ndikufalikira mu mawonekedwe a siketi;palibe ming'alu, mapini, Palibe zotsalira zotuluka.
Nthawi yotumiza: Mar-21-2023