Patent · US Active

Multi-layered composite part made of steel having optimized paint adhesion

US8221898B2 · kind B2 · utility

2Cited by

9References

11Claims

0Family size

Assignee

ThyssenKrupp Steel Europe AG · DE

Inventors

Jens Becker · Ludwigshafen am Rhein, DE
Peter Seyfried · Berlin, DE
Michael Steinhorst · Essen, DE
Horst Walter Tamler · Witten, DE
Roland Wunderlich · Bergkamen, DE

Key dates

Filing date	Apr 25, 2008
Grant date	Jul 17, 2012
Priority date	—
Expiry date	Aug 30, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12986
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A multilayered composite part includes a plurality of steel alloy layers connected to one another, with at least one core layer consisting of a soft, well deformable steel alloy and at least one steel alloy layer of a very high strength steel alloy, arranged on the core layer. A multilayered composite part which is characterized simultaneously by a high strength paired with very good outer skin quality and very good paint adherence, is achieved in that at least one outer steel alloy layer of a soft, well deformable steel alloy is provided on the very high strength steel alloy layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.