logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11708620 B1

PDFFull Text
Date of Patent:
Jul. 25, 2023

Filed:

May. 28, 2015

Far-infrared radiation multi-stage type heating furnace for steel sheets for hot stamping

Applicants:

Nippon Steel & Sumikin Texeng. Co., Ltd., Tokyo, JP;

Showa Manufacturing Co., Ltd., Fukuoka, JP;

Inventor:

Shinjiro Kuwayama, Tokyo, JP;

Assignee:

NIPPON STEEL & SUMIKIN TEXENG. CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

William J Levicky

Assistant Examiner:

Adam M Eckardt

Int. Cl.
CPC ...
C21D 1/34 (2006.01); F27B 5/06 (2006.01); F27B 5/02 (2006.01); F27D 5/00 (2006.01); C21D 9/46 (2006.01); F27B 9/06 (2006.01); F27D 11/12 (2006.01); H05B 3/00 (2006.01);
U.S. Cl.
CPC ...
C21D 1/34 (2013.01); C21D 9/46 (2013.01); F27B 5/02 (2013.01); F27B 5/06 (2013.01); F27B 9/068 (2013.01); F27D 5/0006 (2013.01); F27D 11/12 (2013.01); H05B 3/009 (2013.01);
Abstract

Steel sheets for hot stamping accommodated in a far-infrared radiation multi-stage type heating furnace are stably supported over a long period of time using steel sheet support members having a small projected area and inhibited from thermally deforming. The far-infrared radiation multi-stage type heating furnace includes: heating units and a ceiling unit arranged in a vertical direction with multiple stages to accommodate aluminum-coated steel sheets or zinc- coated steel sheets for hot stamping; and far-infrared radiation heaters disposed within the heating units and the ceiling unit to heat the steel sheets for hot stamping to a temperature ranging from the Actransformation temperature to 950° C. Steel sheet support members are mounted to the heating units to support the steel sheets for hot stamping by point contact or line contact with the steel sheets for hot stamping.

Find Patent Forward Citations

Kuwayama, Shinjiro. (2023). Far-infrared radiation multi-stage type heating furnace for steel sheets for hot stamping (U.S. Patent No. 11708620). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11708620

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…