NON-ORIENTED ELECTRICAL STEEL HAVING EXCELLENT MAGNETIC PROPERTIES

Title:

NON-ORIENTED ELECTRICAL STEEL HAVING EXCELLENT MAGNETIC PROPERTIES

Document Type and Number:

WIPO Patent Application WO/2018/077210

Kind Code:

A1

Abstract:

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≤0.005％, S≤0.005％, N≤0.005％, and Ti≤0.002％, the remainder being Fe and other inavoidable impurities, and Al/Si≤0.006 and Mn/Si≤0.2. The method for producing same comprises the following sequence of steps: (1) smelting; (2) hot rolling: the heating temperature being 850°C to 1250°C, and the final rolling temperature being 800-1050°C; (3) acid washing; (4) cold rolling; (5) annealing: the annealing plate temperature being controlled between 620°C- 900°C; and (6) coating.

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Inventors:

LV XUEJUN (CN)
ZHANG FENG (CN)
ZONG ZHENYU (CN)
SONG YANLI (CN)
CHEN LINGYUN (CN)
WANG BO (CN)
XIE SHISHU (CN)

Application Number:

PCT/CN2017/107797

Publication Date:

May 03, 2018

Filing Date:

October 26, 2017

Export Citation:

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Assignee:

BAOSHAN IRON & STEEL (CN)

International Classes:

C22C38/04; C22C38/02; C22C38/06; C22C38/14

Domestic Patent References:

WO2013054514A1

2013-04-18

Foreign References:

CN102796948A	2012-11-28
CN103614615A	2014-03-05
CN101306434A	2008-11-19
CN105779876A	2016-07-20
JPH0873939A	1996-03-19

Other References: