Non-oriented electrical steel sheet with excellent magnetic properties and manufacturing method thereof

US11371111B2 · kind B2 · utility

Assignee

• BAOSHAN IRON & STEEL CO., LTD. · CN

Inventors

• Feng Zhang · 南丰镇, CN
• Xuejun Lv · Shanghai, CN
• Bo Wang · Shanghai, CN
• Baojun LIU · Shanghai, CN
• Zhenyu Zong · Shanghai, CN
• Kanyi Shen · Shanghai, CN
• Yezhong Sun · Shanghai, CN

Key dates

• Filing date: Jul 11, 2018
• Grant date: Jun 28, 2022
• Expiry date: Oct 28, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/60
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed are a non-oriented electrical steel sheet with excellent magnetic properties and a manufacturing method thereof, wherein the mass percentage of the chemical components thereof are: C: 0-0.005%; Si: 2.1-3.2%, Mn: 0.2-1.0%, P: 0-0.2%, Al: 0.2-1.6%, N: 0-0.005%, Ti: 0-0.005%, Cu: 0-0.2%, and the balance of Fe and inevitable impurities; and at the same time, (the S content for forming MnS+the S content for forming CuxS)/the S content in the steel is required to be less than or equal to 0.2. The process for manufacturing the non-oriented electrical steel sheet of the present invention is simple and convenient, the chemical components of the steel are easy to control, the manufacturing process is stable, and the technical requirements are easy to realize.