Pretaljevalno spajkanje za izdelavo vezij s površinsko nameščenimi komponentami

Pečjak, Andraž (author), Vrabič, Rok (mentor)

Izdelava kompleksnejših tiskanih vezij v manjših serijah prinaša vrsto težav. Uporaba ročnega spajkalnika, tj. tehnika uporabljena za preprosta in maloštevilna vezja, se izkaže za zamudno. Poleg tega je zaradi prisotnosti velikega števila elektronskih elementov ta tehnika dovzetna za napake na spojih. Alternativa, ki se je pojavila na trgu je Reflowster. Preprost krmilnik na hiter in enostaven način kuhinjsko pečico pretvori v postajo za pretaljevalno spajkanje. V zaključni nalogi smo preizkušali krmilnik za izdelavo tiskanega vezja mobilnega robota RoboU3P. Za cilj smo si postavili izdelavo popolnoma funkcionalnega mobilnega robota, ki bo izdelan v sprejemljivem časovnem obdobju. Posvetili smo se osnovam pretaljevalnega spajkanja ter se skozi mehanizme nastanka najpogostejših deformacij spojev naučili razumeti temperaturni profil, ki je potreben za kvalitetno izdelavo spojev. Ugotovili smo, da so napake na spojih predvsem posledica dveh dejavnikov: količine nanesene paste ter velikosti razmikov med kontakti na vezju. Z nekaj časovne optimizacije smo pokazali, da je sestava robota lahko hitra in učinkovita.

• Language: Slovenian
• Keywords: Reflowster, pretaljevalno spajkanje, tiskano vezje, tehnologija površinske montaže, elektronski elementi, časovna optimizacija
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Publisher: [A. Pečjak]
• Year: 2018
• PID: 20.500.12556/RUL-102927
• UDC: 621.38:621.791.033-65(043.2)
• COBISS.SI-ID: 16403483
• Publication date in RUL: 12.09.2018

PEČJAK, Andraž, 2018, Pretaljevalno spajkanje za izdelavo vezij s površinsko nameščenimi komponentami [online]. Bachelor’s thesis. A. Pečjak. [Accessed 11 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=102927

Secondary language

• Language: English
• Title: Reflow soldering for assembly of printed circuit boards with surface mount technology

Abstract

Manufacturing of complex printed circuit boards in small series can lead to difficulties. Using of soldering iron stations is simple and used for many circuit boards, however the process is very time consuming. Also, due to large number of electronic components that it contains, the probability of an error during soldering is high. The alternative that appeared on the market is Reflowster, a simple controller that turns a kitchen oven in to a reflow soldering station. In this thesis the controller is used for producing of a printed circuit board of a mobile robot RoboU3P. The goal is to manufacture a fully functional mobile robot in a time-acceptable period. The focus is directed towards basic reflow soldering, using mechanisms of appearance of most common deformations of joints, to learn to understand the temperature profile needed for producing quality joints. The results show that there are two factors that cause the formation of deformations – the quantity of the soldering paste used and spacing between joints on the circuit board. By applying time optimizations, we have demonstrated that robot manufacturing can be faster and more efficient.

• Keywords: Reflowster, reflow soldering, printed circuit board, surface mount technology, electronic components, time optimization