EP 2327805 B1 20160413 - Method for producing a sheet metal part with a corrosion-resistant coating
Title (en)
Method for producing a sheet metal part with a corrosion-resistant coating
Title (de)
Verfahren zum Herstellen eines Blechformteils mit einer Korrosionsschutzbeschichtung
Title (fr)
Procédé destinés à fabriquer une pièce usinée en tôle dotée d'un revêtement de protection contre la corrosion
Publication
Application
Priority
DE 102009053368 A 20091114
Abstract (en)
[origin: EP2327805A1] The method for producing a sheet metal part provided with a corrosion resistant coating and formed from a high-strength steel sheet material, comprises forming a provided initial sheet metal material to the sheet metal part, electrolytically coating the sheet metal part for the formation of the corrosion resistant coating, and subsequently heat treating the coated sheet metal part. The initial sheet metal material is a high strength steel sheet material. The electrolytic coating is a zinc-containing corrosion resistant coating applied on the sheet metal part. The method for producing a sheet metal part provided with a corrosion resistant coating and formed from a high-strength steel sheet material, comprises forming a provided initial sheet metal material to the sheet metal part, electrolytically coating the sheet metal part for the formation of the corrosion resistant coating, and subsequently heat treating the coated sheet metal part. The initial sheet metal material is a high strength steel sheet material. The electrolytic coating of a zinc-containing corrosion resistant coating is applied on the sheet metal part. The layer thickness of the electrolytically applied corrosion resistant coating is less than 15 mu m. The temperature of the heat treatment is 180-200[deg] C. The duration of the heat treatment is several hours and is carried out in a protective gas atmosphere. The forming is a hot-forming. After the forming and before electrolytic coating, the hardening of the sheet metal part is carried out. The forming includes a press hardening. Independent claims are included for (1) a production plant for producing a sheet metal part; and (2) a hot-formed part.
IPC 8 full level
C21D 6/00 (2006.01); C21D 1/673 (2006.01); C21D 1/773 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C25D 5/00 (2006.01); C25D 5/50 (2006.01); C25D 7/06 (2006.01)
CPC (source: EP)
C21D 1/673 (2013.01); C21D 1/773 (2013.01); C21D 8/0278 (2013.01); C21D 9/46 (2013.01); C25D 5/50 (2013.01)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2327805 A1 20110601; EP 2327805 B1 20160413; DE 102009053368 A1 20110519
DOCDB simple family (application)
EP 10180536 A 20100928; DE 102009053368 A 20091114