EP 4045602 A1 20220824 - PROCESS FOR COATING THE SURFACE OF WORKPIECES
Title (en)
PROCESS FOR COATING THE SURFACE OF WORKPIECES
Title (de)
VERFAHREN ZUR OBERFLÄCHENBESCHICHTUNG VON WERKSTÜCKEN
Title (fr)
PROCÉDÉ DE REVÊTEMENT DE LA SURFACE DE PIÈCES À USINER
Publication
Application
Priority
- AT 508922019 A 20191016
- AT 2020060371 W 20201014
Abstract (en)
[origin: WO2021072469A1] The invention relates to a process for coating the surface of workpieces (1), in which process a coating agent is applied to the workpiece (1) and subsequently is cured in an alternating electromagnetic field. In order to make possible a high-quality surface coating despite a shorter process duration even in the case of standard coating agents, in particular in the case of liquid lacquers, according to the invention, first the volatile components of the coating agent are expelled in an alternating electromagnetic field having a first frequency spectrum, whereupon, in order to cross-link and/or cure the remaining coating agent fractions, the surface of the workpiece is heated in an alternating electromagnetic field having a second frequency spectrum, the frequency range of which lies below the first frequency spectrum.
IPC 8 full level
C09D 5/00 (2006.01)
CPC (source: AT EP US)
B05D 3/0281 (2013.01 - AT US); B05D 3/207 (2013.01 - AT US); B05D 7/14 (2013.01 - US); C09D 5/00 (2013.01 - EP); C09D 5/024 (2013.01 - AT); C09D 5/033 (2013.01 - AT); C09D 7/40 (2017.12 - AT); B05D 7/14 (2013.01 - AT)
Citation (search report)
See references of WO 2021072469A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021072469 A1 20210422; AT 523061 A4 20210515; AT 523061 B1 20210515; CN 114761493 A 20220715; EP 4045602 A1 20220824; JP 2022552577 A 20221216; US 2023330703 A1 20231019
DOCDB simple family (application)
AT 2020060371 W 20201014; AT 508922019 A 20191016; CN 202080071017 A 20201014; EP 20797016 A 20201014; JP 2022523159 A 20201014; US 202017769589 A 20201014