Plazemska aktivacija pri nanašanju tankih plasti v postopku izdelave žarometov

MIKEK, JAKA (author), Levstek, Andrej (mentor)

V podjetju, ki razvija in proizvaja avtomobilske žaromete, se s tankimi plastmi srečujejo na dnevni ravni. Izdelave žarometov si namreč brez njihove neposredne uporabe ni moč zamisliti. Uporabljajo se v drugi fazi izdelave žarometov, tako imenovani fazi oslojevanja oziroma metalizacije, pri kateri se z namenom dosega primerne svetlobne odbojnosti žarometa nanesejo na obdelovanec s postopkom naparevanja ali naprševanja. Pri nanosu tankih plasti na obdelovanec pa se večkrat zazna problem slabe adhezije, katere vzrok je največkrat slaba plazemska aktivacija oziroma slaba priprava površine obdelovanca za nanos tanke plasti. Za lažje razumevanje nanašanja tankih plasti v postopku izdelave žarometov v uvodnem delu diplomskega dela na splošno predstavim postopke nanašanja tankih plasti in natančneje opišem postopek naparevanja in naprševanja. Ker plazma za omenjena postopka predstavlja osnovo, podrobneje opišem tudi njeno vlogo pri tem. V osrednjem delu diplomskega dela se osredotočim na postopek izdelave žarometov, pri čemer izpostavim nanašanje tankih plasti s postopkom naparevanja, ki ga podjetje, pri katerem sem zaposlen, za ta namen najpogosteje izvaja. Predstavim tudi testiranja, ki se izvajajo pri nanašanju tankih plasti, obstoječe standarde, meritve kakovosti obdelovancev in pojav napak pri nanašanju tankih plasti. V zaključnem delu diplomskega dela se osredotočim na problem slabega nanosa tankih plasti, kjer poskušam optimizirati strojne parametre plazemske aktivacije, ki je ključnega pomena za kakovosten in dober nanos tankih plasti na obdelovanec.

• Language: Slovenian
• Keywords: izdelava žarometov, tanke plasti, plazemska aktivacija
• Work type: Undergraduate thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2016
• PID: 20.500.12556/RUL-82769
• Publication date in RUL: 23.05.2016

MIKEK, JAKA, 2016, Plazemska aktivacija pri nanašanju tankih plasti v postopku izdelave žarometov [online]. Bachelor’s thesis. [Accessed 6 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=82769

Secondary language

• Language: English
• Title: Plasma activation in the manufacturing process of automobile headlights

Abstract

The company which develops and manufactures automotive headlamps deals with coating of thin layers on a daily basis. Manufacturing headlights without this technology is hard to imagine. Coating is used in the second stage of manufacturing headlamps called vaporization or metallization which is a process where a metallic layer is deposited on a workpiece by vapor deposition or sputtering with the aim to reach an appropriate light reflectivity of the headlamp. When applying thin layers onto the workpiece, the problem of deficient adhesion can occur. This comes from poor plasma activation process or bad preparation of the workpiece surface before applying thin layers. For ease of understanding of the thin layer deposition in the headlamps manufacturing process, the introduction describes different processes of thin layer deposition, with detail description of vapor deposition and sputtering. Since plasma is the basis of this process its main role is also described. In the central part of the diploma I focused on the manufacturing process of headlamps, with emphasis on the most commonly performed vapor deposition process used by the company where I work. This part also explains that when applying thin layers on workpieces different requirements, standards and quality measurements must be met, or errors may occur. In the conclusion I focused on the problem of low coating quality. With experimentation, I tried to optimize parameters of plasma activation process, which is crucial for the good coating quality of thin layers on the workpieces.

• Keywords: headlamp manufacturing, thin layers, plasma activation process