BMW was the first automobile manufacturer in the world to use powder clear coats (PCC) in standard production at their assembly plant in Dingolfing (Germany) since 5/97. This paper reviews the advantages of PCCs, development steps and initial production line experiences. Topics discussed include the plant at Dingolfing, the PCC technology, the 5 functional layers which make up the paintwork of a car, protection and brilliance with PCCs, potentials of PCC technology, management of the simultaneous engineering project, material and process development, experiments in container spray booths and technical labs, milestones in PCC technology, the new paint shop at Dingolfing, the equipment, the clean room concept, the PCC line, the coating and supply concept, the drier (circulated air/infrared combination), start-up and running the PCC-line, checks to ensure varnish compatibility before system start-up, the start-up of the application equipment, operational experience (material specific criteria - adhesion, yellowing, UV resistance, thermostability, scratch resistance, acid and chemical resistance - transportation, handling and storage, repair of the PCC, optical appearance, sanding and polishing, recycling, field trials), the process criteria (coating concept, material supply, drying), operating the line, surface finish results, investment-, support- and maintenance expenditure as well as the qualification of the employees and teamwork.
Powder clear coat
Klarlack-Pulverbeschichtungen für Karosserien
1998
32 Seiten, 17 Bilder, 1 Tabelle
Conference paper
English
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