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公开(公告)号：US20230416883A1
公开(公告)日：2023-12-28
申请号：US17636804
申请日：2020-08-26
发明人： Shuangjie CHU , Guobao LI , Feng ZHANG , Zhicheng WANG , Kanyi SHEN , Baojun LIU
CPC分类号： C22C38/02 , C22C38/004 , C22C38/04 , C22C38/06 , C22C38/008 , C22C38/002 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1283
摘要： The present invention discloses a non-oriented electrical steel plate, comprising the following chemical elements in percentage by mass: 0
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2.发明申请公开(公告)号：US20210180147A1
公开(公告)日：2021-06-17
申请号：US16759787
申请日：2018-07-11
发明人： Feng ZHANG , Xuejun LV , Bo WANG , Baojun LIU , Zhenyu ZONG , Kanyi SHEN , Yezhong SUN
IPC分类号： C21D8/12 , C21D6/00 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/16
摘要： 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.
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公开(公告)号：US20240071661A1
公开(公告)日：2024-02-29
申请号：US18259898
申请日：2022-01-11
发明人： Meihong WU , Guobao LI , Shuangjie CHU , Zipeng ZHAO , Baojun LIU , Kanyi SHEN , Yongjie YANG , Zhuochao HU , Yaming JI , Chen LING
IPC分类号： H01F1/18 , C21D1/18 , C21D1/84 , C21D6/00 , C21D8/12 , C21D9/52 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06
CPC分类号： H01F1/18 , C21D1/18 , C21D1/84 , C21D6/005 , C21D6/008 , C21D8/1222 , C21D8/1233 , C21D8/125 , C21D8/1255 , C21D8/1261 , C21D8/1266 , C21D8/1283 , C21D9/52 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , B23K26/362 , C21D2201/05 , C22C2202/02
摘要： A manufacturing method for low-magnetostrictive oriented silicon steel is provided, wherein the oriented silicon steel comprises a silicon steel substrate and an insulating coating on the surface of the silicon steel substrate. The manufacturing method comprises: performing single-sided laser etching on the silicon steel substrate, wherein the side of the silicon steel substrate, on which single-sided laser etching is performed, is a first surface, and the side opposite to the first surface is a second surface; determining a deflection difference between the first surface and the second surface based on the power of the laser etching, and determining a difference in the amount of the insulating coatings on the first surface and the second surface based on the deflection difference; and forming insulating coatings on the first surface and the second surface. The amount of the insulating coating on the second surface is greater than that on the first surface, and the amount of the insulating coating on the first surface and that on the second surface satisfy the difference in the amount of the insulating coatings. By using the manufacturing method in the present invention, the problem of a relatively large magnetostrictive deviation between two sides of oriented silicon steel caused by single-sided laser etching can be solved. Oriented silicon steel manufactured by the aforementioned manufacturing method is also provided. A transformer iron core prepared using the oriented silicon steel enables a transformer to have low noise during operation.
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公开(公告)号：US20200291501A1
公开(公告)日：2020-09-17
申请号：US16650074
申请日：2018-05-16
发明人： Huabing ZHANG , Guobao LI , Baojun LIU , Dan HAN , Xinqiang ZHANG , Guanghua CUI , Jianbing CHEN , Wen XIAO , Zipeng ZHAO
IPC分类号： C21D11/00 , B21B1/22 , C22C38/34 , C22C38/28 , C22C38/24 , C22C38/06 , C22C38/00 , C22C38/04 , C21D9/52 , C21D6/00
摘要： An apparatus and a method for rapidly heating cold-rolled strip steel (10). The apparatus for rapidly heating cold-rolled strip steel (10) comprises a heating zone, a soaking zone, and a cooling zone, and the heating zone is sequentially divided into a first heating section (1), a second heating section (2), a third heating section (3), and a fourth heating section (4) along a moving direction of the strip steel (10) to be heated, the first heating section (1) and the fourth heating section (4) being radiant heating sections, and the second heating section (2) and the third heating section (3) being inductive heating sections. The method for rapidly heating cold-rolled strip steel (10) uses the apparatus for rapidly heating cold-rolled strip steel (10) to heat the strip steel (10).
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公开(公告)号：US20220275470A1
公开(公告)日：2022-09-01
申请号：US17631693
申请日：2020-08-11
发明人： Huabing ZHANG , Guobao LI , Kanyi SHEN , Baojun LIU , Changjun HOU , Xinqiang ZHANG , Jianbing CHEN , Meihong WU , Changsong MA , Desheng LIU
IPC分类号： C21D9/46 , C21D8/12 , C22C38/26 , C22C38/20 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , H01F1/147 , H01F41/02
摘要： Disclosed is a high-magnetic-induction oriented silicon steel, wherein the chemical elements thereof are, in mass percentage: Si: 2.0-4.0%; C: 0.03-0.07%; Al: 0.015-0.035%; N: 0.003-0.010%; Nb: 0.0010-0.0500%, the balance being Fe and inevitable impurities. The manufacturing method for the high-magnetic-induction oriented silicon steel includes the steps of: (1) smelting and casting; (2) heating a slab; (3) hot rolling; (4) cold rolling; (5) decarbonizing and annealing; (6) nitriding treatment; (7) applying an MgO coating; (8) high temperature annealing; and (9) applying an insulating coating; wherein a high-magnetic-induction oriented silicon steel is obtained by the manufacturing method, having an average primary grain size of 14-22 μm and a primary grain size variation coefficient of higher than 1.8; and wherein the primary grain size variation coefficient = the average primary grain size standard deviation of a primary grain size .
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公开(公告)号：US20210047706A1
公开(公告)日：2021-02-18
申请号：US17040684
申请日：2019-03-25
发明人： Huabing ZHANG , Shuangjie CHU , Guobao LI , Wen XIAO , Baojun LIU , Yongjie YANG , Kanyi SHEN , Dan HAN , Zhining HU
摘要： 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.
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公开(公告)号：US20240011112A1
公开(公告)日：2024-01-11
申请号：US17636776
申请日：2020-08-26
发明人： Feng ZHANG , Bo WANG , Kanyi SHEN , Baojun LIU , Guobao LI , Shuangjie CHU
IPC分类号： C21D9/46 , C22C38/16 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/12 , C22C33/04 , C21D6/00 , H01F1/147
CPC分类号： C21D9/46 , C22C38/16 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/002 , C22C38/001 , C22C38/004 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1283 , C22C33/04 , C21D6/005 , C21D6/008 , H01F1/14791
摘要： 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
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公开(公告)号：US20220275472A1
公开(公告)日：2022-09-01
申请号：US17636787
申请日：2020-08-26
发明人： Feng ZHANG , Baojun LIU , Jun LI , Bo WANG , Kanyi SHEN , Guobao LI
IPC分类号： C21D9/46 , C21D8/12 , C21D6/00 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C38/60 , C22C38/14 , H01F1/147
摘要： Provided is a 600 MPa grade non-oriented electrical steel sheet with excellent magnetic properties, comprising the following chemical elements in mass percentage: 0
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