Patent · US Active

Method for strengthening steel plate member

US9951395B2 · kind B2 · utility

2Cited by

1References

8Claims

0Family size

Assignee

ASTEER CO., LTD. · JP

Inventors

Koji Shimotsu · Pitumarca, PE
Katsushi Osumi · Pitumarca, PE
Yukihiro Tsugita · Pitumarca, PE

Key dates

Filing date	Mar 13, 2013
Grant date	Apr 24, 2018
Priority date	—
Expiry date	Aug 17, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2221/02
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Provided is a method for strengthening a steel plate member employing a heating and quenching treatment. The method includes a first heating step, a partial cooling step, a second heating step and an entire cooling step, each step conducted in the written order.

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