High-throughout continuous casting and rolling Al—Mg—Mn alloy plate for ships and the preparation process thereof

Patent metadata

Field	Value
Publication number	US-11674202-B2
Application number	US-202217873596-A
Country	US
Kind code	B2
Filing date	Jul 26, 2022
Priority date	Jul 26, 2021
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

The invention discloses a high-throughout continuous casting and rolling Al—Mg—Mn alloy plate for ships and the preparation process thereof. The chemical components of the Al—Mg—Mn alloy in percentage by mass percentage are: Mg: 0.80-2.80%, Mn: 0.00-1.40%, Zr: 0.10-0.50%, Cr: 0.15-0.35%, Sr: 0.00-0.10%, Er: 0.00-0.60%, Si: 0.10-0.40%, Cu: 0.01-0.10%, Ti: 0.01-0.05%, Fe: 0.00-0.40% and the rest is Al. The preparation processes mainly include smelting and melt treatment, continuous casting, continuous rolling and cold rolling. The invention solves the problems of easy segregation, low strength and toughness and poor formability in the preparation of high-throughout continuous casting and rolling Al—Mg—Mn plates for ships.

First claim

The invention claimed is:

1. A continuous casting and rolling Al—Mg—Mn alloy plate for ships, wherein a chemical composition of the Al—Mg—Mn alloy consists of, by mass: Mg: 1.50%, Mn: 0.80%, Zr: 0.20%, Cr: 0.25%, Sr: 0.06%, Er: 0.20%, Si: 0.10%, Cu: 0.05%, Ti: 0.02%, Fe: 0.10%, and the rest is Al.

Assignees

• Univ Zhengzhou

Inventors

• Guan Shaokang
• Lu Guangxi
• Xu Cong

Classifications

• C22C21/08 Primary

  with silicon · CPC title

• C22F1/047

  of alloys with magnesium as the next major constituent · CPC title

• B22D11/003

  Aluminium alloys · CPC title

• B22D11/116

  Refining the metal · CPC title

• C22C1/03

  using master alloys · CPC title