IDiyas

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 10266910 B1

PDFFull Text
Date of Patent:
Apr. 23, 2019

Filed:

Dec. 19, 2014

Steel sheet hot-dip-coated with zn—al—mg-based system having excellent workability and method for manufacturing same

Applicant:

Nisshin Steel Co., Ltd., Tokyo, JP;

Inventors:

Kentarou Hirata, Tokyo, JP;

Shinya Uesugi, Tokyo, JP;

Yukio Katagiri, Hiroshima, JP;

Masaaki Uranaka, Osaka, JP;

Tomoharu Shigetomi, Hiroshima, JP;

Assignee:

NISSHIN STEEL CO., LTD., Tokyo, JP;

Attorney:

Rothwell, Figg, Ernst & Manbeck, P.C.

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C21D 9/46 (2006.01); C21D 8/02 (2006.01); C23C 2/40 (2006.01); C23C 2/02 (2006.01); C23C 2/06 (2006.01); C22C 38/14 (2006.01); C22C 38/12 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 18/00 (2006.01); C22C 18/04 (2006.01); B32B 15/01 (2006.01); C23C 30/00 (2006.01); B32B 15/04 (2006.01); B32B 15/18 (2006.01); B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); B32B 15/012 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); B32B 15/20 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C21D 8/0278 (2013.01); C22C 18/00 (2013.01); C22C 18/04 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C23C 2/02 (2013.01); C23C 2/06 (2013.01); C23C 2/40 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C21D 2211/002 (2013.01); C21D 2211/004 (2013.01); C21D 2211/005 (2013.01); Y10T 428/12757 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01);
Abstract

A steel sheet hot-dip coated with a Zn—Al—Mg-based system, wherein the steel sheet material has a predetermined chemical composition; a Ti/C equivalent ratio represented by Formula (1) described in the specification is 0.4 to 1.5; a bainitic ferrite single phase or a phase including a bainitic ferrite phase and a ferrite phase exists as a main phase; the area ratio of a hard second phase and cementite is 3% or less; the ratio of small-angle boundaries with a difference in crystal orientation of 2° to 15° is 30% to 75%; and Ti-containing carbides having an average particle size of 20 nm or less are dispersed and precipitated and a method of manufacturing thereof.

Find Patent Forward Citations

Loading…