Baoshan Iron & Steel Co., Ltd.

Shanghai Sany Technology Co., Ltd.

Baojun Liu

Guobao Li

Kanyi Shen

Feng Zhang

Bo Wang

Dan Han

Huabing Zhang

Shuangjie Chu

Wen Xiao

Jun Li

Yongjie Yang

Zipeng Zhao

Xinqiang Zhang

Yezhong Sun

Xuejun Lv

Zhenyu Zong

Jianbing Chen

Guanghua Cui

Zhining Hu

Zhenzhu Li

Linghua Su

Wenxuan Sun

Ningjiang Liu

Zhigang Chen

Provided is a 600 MPa grade non-oriented electrical steel sheet with excellent magnetic properties, comprising the following chemical elements in mass percentage: 0<C≤0.0035%; Si: 2.0-3.5%; Mn: 0.4-1.2%; P: 0.03-0.2%; Al: 0.4-2.0%; and the balance being Fe and unavoidable impurities. Also provided is a manufacturing method for the 600 MPa grade non-oriented electrical steel as described above, including the following steps: (1) converter smelting, RH refining and casting; (2) hot rolling; (3) normalizing; (4) cold rolling; (5) continuous annealing; and (6) applying an insulation coating to obtain a finished non-oriented electrical steel sheet.

600 MPa grade non-oriented electrical steel sheet and manufacturing method thereof

The present invention discloses a Cu-containing non-oriented electrical steel plate having high cleanliness, comprising the following chemical elements in percentage by mass: 0<C≤0.003%; Si: 0.1-2.0%; Mn: 0.1-0.55%; S: 0-0.004%; Cu: 0.003-0.2%; Al: 0.1-1.0%; and the balance being Fe and inevitable impurities. In addition, the present invention further discloses a continuous annealing process for the Cu-containing non-oriented electrical steel plate having high cleanliness. Moreover, the present invention further discloses a manufacturing method for Cu-containing non-oriented electrical steel plate having high cleanliness, including the steps of: smelting and casting; hot rolling; normalizing; cold rolling; performing the continuous annealing process; and applying an insulation coating to obtain a finished non-oriented electrical steel plate. The Cu-containing non-oriented electrical steel plate having high-cleanliness is high in cleanliness and excellent in magnetic performance.

Cu-containing non-oriented electrical steel sheet and manufacturing method therefor

Disclosed is a manufacturing method for a high silicon grain oriented electrical steel sheet, the silicon content of the high silicon grain oriented electrical steel is greater than 4 wt %, comprising the steps of: (1) performing decarburization annealing of a cold-rolled steel plate; (2) allowing high silicon alloy particles in a completely solid state to collide at a high speed with the surface of the decarburization annealed steel plate to be sprayed, thus forming a high silicon alloy coating on the surface of the steel plate to be sprayed; (3) coating a release agent and drying; and (4) annealing. The manufacturing method for the high silicon grain oriented electrical steel sheet of the present invention is inexpensive, and, the high silicon grain oriented electrical steel sheet produced is of stable quality and is provided with great magnetic performance.

Manufacturing method for high silicon grain oriented electrical steel sheet

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

An apparatus and a method for rapidly heating cold-rolled strip steel (). The apparatus for rapidly heating cold-rolled strip steel () comprises a heating zone, a soaking zone, and a cooling zone, and the heating zone is sequentially divided into a first heating section (), a second heating section (), a third heating section (), and a fourth heating section () along a moving direction of the strip steel () to be heated, the first heating section () and the fourth heating section () being radiant heating sections, and the second heating section () and the third heating section () being inductive heating sections. The method for rapidly heating cold-rolled strip steel () uses the apparatus for rapidly heating cold-rolled strip steel () to heat the strip steel ().

Apparatus and method for rapidly heating cold-rolled strip steel

Growing community of inventors

Shanghai, China

Baojun Liu