Baoshan Iron & Steel Co., Ltd.

Zhenyu Zong

Feng Zhang

Bo Wang

Shishu Xie

Xuejun Lv

Yanli Song

Kanyi Shen

Baojun Liu

Yezhong Sun

Lingyun Chen

Xianshi Fang

A high-magnetic-induction low-iron-loss non-oriented silicon steel sheet and a manufacturing method therefor. The chemical composition by mass percentages is: C≤0.005%, Si: 0.1%-1.6%, Mn: 0.1%-0.5%, P≤0.2%, S≤0.004%, Al≤0.003%, N≤0.005%, Nb≤0.004%, V≤0.004% and Ti≤0.003%, with the balance being Fe and inevitable impurities; and at the same time satisfies: 120≤[Mn]/[S]≤160, and [Nb]/93+[V]/51+[Ti]/48+[Al]/27≤[C]/12+[N]/14. After casting, the cooling rate in a cool-down process of casting slab is controlled, and a temperature controlling method is used to adjust the charging temperature of casting slab.

High-magnetic-induction low-iron-loss non-oriented silicon steel sheet and manufacturing method therefor

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 toThe 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.

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

A non-oriented electrical steel having excellent magnetic properties, the chemical elements thereof in percentage by mass being: Si: 0.2-1.5%, Mn: 0.01-0.30%, Al: 0.001-0.009%, O: 0.005-0.02%, C&#x2264;0.005%, S&#x2264;0.005%, N&#x2264;0.005%, and Ti&#x2264;0.002%, the remainder being Fe and other unavoidable impurities, and Al/Si&#x2264;0.006 and Mn/Si&#x2264;0.2. The method for producing comprises the following sequence of steps: (1) smelting; (2) hot rolling: the slab heating temperature being 850&#xb0; C. to 1250&#xb0; C., and the final rolling temperature being 800-1050&#xb0; C.; (3) acid pickling; (4) cold rolling; (5) annealing: the annealing plate temperature being controlled between 620&#xb0; C.-900&#xb0; C.; and (6) coating.

Non-oriented electrical steel having excellent magnetic properties

Growing community of inventors

Shanghai, China

Zhenyu Zong