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 11224907 B1

PDFFull Text
Date of Patent:
Jan. 18, 2022

Filed:

Feb. 08, 2018

Composite roll for rolling and its production method

Applicant:

Hitachi Metals, Ltd., Tokyo, JP;

Inventors:

Yasunori Nozaki, Kitakyusyu, JP;

Nozomu Oda, Kitakyusyu, JP;

Toshiyuki Hattori, Kitakyusyu, JP;

Assignee:

HITACHI METALS, LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Jacob J Cigna

Int. Cl.
CPC ...
B21B 27/00 (2006.01); B22D 13/02 (2006.01); B22D 19/16 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/56 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
B21B 27/00 (2013.01); B22D 13/02 (2013.01); B22D 19/16 (2013.01); C22C 38/44 (2013.01); C22C 38/48 (2013.01); C22C 38/56 (2013.01); C22C 38/58 (2013.01);
Abstract

A composite roll for rolling having a structure comprising centrifugally cast outer and intermediate layers of an Fe-based alloy integrally fused to an inner layer of ductile cast iron; the outer layer having a composition comprising by mass 1-3% of C, 0.3-3% of Si, 0.1-3% of Mn, 0.5-5% of Ni, 1-7% of Cr, 2.2-8% of Mo, 4-7% of V, 0.005-0.15% of N, and 0.05-0.2% of B, the balance being Fe and inevitable impurities; the intermediate layer containing 0.025-0.15% by mass of B; the B content in the intermediate layer being 40-80% of that in the outer layer; and the total amount of Cr, Mo, V, Nb and W in the intermediate layer being 40-90% of that in the outer layer.

Find Patent Forward Citations

Nozaki, Yasunori. (2022). Composite roll for rolling and its production method (U.S. Patent No. 11224907). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11224907

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

Loading…