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.

Date of Patent:
Dec. 27, 2022

Filed:

Dec. 06, 2016
Applicant:

Baoshan Iron & Steel Co., Ltd., Shanghai, CN;

Inventors:

Shiwei Xu, Shanghai, CN;

Weineng Tang, Shanghai, CN;

Jianfeng Nie, Shanghai, CN;

Mingzhe Bian, Shanghai, CN;

Haomin Jiang, Shanghai, CN;

Pijun Zhang, Shanghai, CN;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21B 1/26 (2006.01); B21B 1/22 (2006.01); B21B 3/00 (2006.01); B21B 37/46 (2006.01); B21B 37/74 (2006.01); C22F 1/06 (2006.01); C22C 23/04 (2006.01); C21D 8/02 (2006.01); C22C 23/02 (2006.01);
U.S. Cl.
CPC ...
B21B 1/26 (2013.01); B21B 1/22 (2013.01); B21B 1/227 (2013.01); B21B 3/00 (2013.01); B21B 3/003 (2013.01); B21B 37/46 (2013.01); B21B 37/74 (2013.01); C21D 8/0226 (2013.01); C21D 8/0231 (2013.01); C22C 23/02 (2013.01); C22C 23/04 (2013.01); C22F 1/06 (2013.01); B21B 2001/225 (2013.01); B21B 2003/001 (2013.01); C21D 8/02 (2013.01);
Abstract

The present disclosure provides a high-efficient rolling process for magnesium alloy sheet. Parameters of the rolling process are: the rolling speed of each rolling pass is 10-50 m/min, the rolling reduction of each rolling pass is controlled to be 40-90%, and both the preheating temperature before rolling and the rolling temperature of each rolling pass are 250-450° C. The present disclosure also provides a preparation method for magnesium alloy sheet, comprising: 1) preparing rolling billets; 2) high-efficient hot rolling; and 3) performing annealing. The rolling process can improve the mechanical performance especially, the strength and ductility of the sheet.


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