Patent · US Expired

Process for the production of stove-finished structural components from ageing-sensitive steel

US6726786B1 · kind B1 · utility

0Cited by

5References

3Claims

0Family size

Assignee

THYSSEN KRUPP STAHL AG · DE

Inventors

Rolf Bode · Wesel, DE
Ilse Heckelmann · Xanten, DE

Key dates

Filing date	Mar 10, 2000
Grant date	Apr 27, 2004
Priority date	—
Expiry date	Mar 10, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D8/0442
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to processes for the production of a buckling-resistant stove-finished structural member from cold rolled and dressed strip (cold strip) non-ageing steel with high bake-hardening potential, more particularly of more than 70 N/mm2. The characterising feature of the invention is that the cold strip is converted by dressing into a yield point stretch-free state (Reh−Rel<2 N/mm2), then stored at a temperature below room temperature and further processed into the form of a structural member, whereafter the strip is finally stove finished.

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