EP 3856947 A1 20210804 - METHOD FOR IMPROVING THE PHOSPHATABILITY OF METAL SURFACES WHICH ARE PROVIDED WITH A TEMPORARY PRE- OR POST-TREATMENT
Title (en)
METHOD FOR IMPROVING THE PHOSPHATABILITY OF METAL SURFACES WHICH ARE PROVIDED WITH A TEMPORARY PRE- OR POST-TREATMENT
Title (de)
VERFAHREN ZUR VERBESSERUNG DER PHOSPHATIERBARKEIT VON METALLISCHEN OBERFLÄCHEN, WELCHE MIT EINER TEMPORÄREN VOR- BZW. NACHBEHANDLUNG VERSEHEN WERDEN
Title (fr)
PROCÉDÉ D'AMÉLIORATION DE L'APTITUDE À LA PHOSPHATATION DE SURFACES MÉTALLIQUES POURVUES D'UN PRÉ-TRAITEMENT OU D'UN POST-TRAITEMENT TEMPORAIRE
Publication
Application
Priority
- DE 102018216216 A 20180924
- EP 2019075340 W 20190920
Abstract (en)
[origin: WO2020064548A1] The present invention relates to a method for producing a formed component, comprising at least the following steps: (A) providing a steel strip product; (B) skin-passing the steel strip product from step (A); (C) applying a functional coating to the steel strip product from step (B); (D) forming the steel strip product from step (C) in order to obtain a formed component; (E) removing the functional coating from the formed component from step (D); (F) applying activation particles to the formed component from step (E); and (G) applying a phosphate coating to the formed component from step (F), wherein additional activation particles are applied to the steel strip product before and/or during step (B) and/or before and/or during step (C).
IPC 8 full level
C23C 2/26 (2006.01); C23C 2/06 (2006.01); C23C 22/16 (2006.01); C23C 22/18 (2006.01); C23C 22/78 (2006.01); C23C 22/80 (2006.01)
CPC (source: EP US)
C23C 2/06 (2013.01 - EP); C23C 2/26 (2013.01 - EP US); C23C 22/184 (2013.01 - EP); C23C 22/73 (2013.01 - EP); C23C 22/78 (2013.01 - EP); C23C 22/80 (2013.01 - EP); C23C 2222/20 (2013.01 - EP)
Citation (search report)
See references of WO 2020064548A1
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)
DE 102018216216 A1 20200326; EP 3856947 A1 20210804; WO 2020064548 A1 20200402
DOCDB simple family (application)
DE 102018216216 A 20180924; EP 19778901 A 20190920; EP 2019075340 W 20190920