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公开(公告)号：EP4438759A1
公开(公告)日：2024-10-02
申请号：EP23740069.2
申请日：2023-01-12
发明人： MA, Changsong , ZHANG, Huabing , MU, Huaichen , CHEN, Jianbing , ZHAO, Bin , ZHAO, Zipeng , WU, Meihong , HU, Zhuochao , YANG, Yongjie , LI, Guobao
CPC分类号： Y02P10/20 , C21D1/74 , C21D1/30 , C22C38/04 , C22C38/16 , C22C38/02 , C21D3/04 , C21D1/26 , C22C38/06 , C21D1/28 , C21D8/12
摘要： Disclosed in the present invention is copper-containing oriented silicon steel with good magnetic properties, the copper-containing oriented silicon steel comprising, in addition to 90 wt% or more of Fe and inevitable impurities, the following chemical elements in percentage by mass: 0.04-0.09% of C, 2.9-4.0% of Si, 0.05-0.2% of Mn, 0.005-0.01% of S, 0.015-0.035% of Als, 0.0010-0.01% of N, 0.01-0.1% of Sn, and Cu, wherein the content of Cu satisfies: 3%≤Si+Cu≤4.4%, 0.05≤Cu/Si≤0.13, and 24≤(Mn+Cu)/S≤118.Further disclosed in the present invention is a method for manufacturing the copper-containing oriented silicon steel. The method is simple, convenient and feasible, and can effectively improve the magnetic properties of the copper-containing oriented silicon steel.
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2.发明公开
公开(公告)号：EP2902507A1
公开(公告)日：2015-08-05
申请号：EP12885574.9
申请日：2012-12-11
发明人： SHEN, Kanyi , LI, Guobao , CHU, Shuangjie , SUN, Yezhong , ZHANG, Huabing , YANG, Yongjie , HU, Zhuochao , ZHAO, Bin , XU, Qi , HUANG, Jie , ZHANG, Peili
CPC分类号： H01F41/02 , C21D3/04 , C21D6/008 , C21D8/12 , C21D8/1205 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1277 , C21D8/1283 , C21D2201/05 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C23C8/26 , H01F1/14783 , H01F1/14791 , H01F1/18 , H01F41/32
摘要： A manufacturing method of oriented silicon steel with magnetic induction B8 of not less than 1.88T, comprising the following steps: 1) smelting and continuously casting to obtain a slab, wherein the content of N is controlled at 0.002-0.014wt% in the smelting stage; 2) hot-rolling; 3) cold-rolling; 4) decarbonizing and annealing; 5) nitriding treatment, wherein infiltrated nitrogen content [N] D is controlled to satisfy the formula: 328-0.14a-0.85b-2.33c≤[N] D ≤362-0.16a-0.94b-2.57c, wherein a is the content of Als in the smelting step, with the unit of ppm; b is the content of N element, with the unit of ppm; and c is primary grains size, with the unit of µm; 6) coating a surface with a magnesium oxide coating and annealing; and 7) applying an insulating coating.
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公开(公告)号：EP3767225A1
公开(公告)日：2021-01-20
申请号：EP19774217.4
申请日：2019-03-29
发明人： ZHANG, Huabing , XIAO, Wen , LI, Guobao , LIU, Baojun , SUN, Wenxuan , ZHANG, Xinqiang , HAN, Dan , CUI, Guanghua , LIU, Ningjiang
IPC分类号： G01B11/06
摘要： Disclosed is a method for measuring the coating thickness of steel plate, comprising the following steps: measuring the outer diameter R and the inner diameter R 0 of the coil with coating, and obtaining the coating thickness T coating based on T coating = π 4 R 2 − R 0 2 / L − T strip ; wherein the outer diameter R, the inner diameter R 0 , the strip length L, the strip thickness T strip , and the coating thickness T coating are in the same unit. Also disclosed is a measuring system used in the method for measuring the coating thickness of steel plate, comprising steel strip thickness measuring device for measuring the thickness T strip of the strip prior to coating application, which is disposed upstream of the coating device along the running direction of the strip; strip length measuring device for measuring the length L of the strip that forms coil; coil size measuring device for measuring the outer diameter and the inner diameter R 0 of a coil; controlling device, which is respectively connected to the strip thickness measuring device, the strip length measuring device and the coil size measuring device, to receive the data transmitted by above measuring device, and calculate and output the coating thickness T coating .
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公开(公告)号：EP2891728B1
公开(公告)日：2019-10-16
申请号：EP12883627.7
申请日：2012-12-11
发明人： ZHANG, Huabing , LI, Guobao , LU, Xijiang , YANG, Yongjie , HU, Zhuochao , SHEN, Kanyi , GAO, Jiaqiang , WU, Meihong
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公开(公告)号：EP2902507B1
公开(公告)日：2018-11-28
申请号：EP12885574.9
申请日：2012-12-11
发明人： SHEN, Kanyi , LI, Guobao , CHU, Shuangjie , SUN, Yezhong , ZHANG, Huabing , YANG, Yongjie , HU, Zhuochao , ZHAO, Bin , XU, Qi , HUANG, Jie , ZHANG, Peili
CPC分类号： H01F41/02 , C21D3/04 , C21D6/008 , C21D8/12 , C21D8/1205 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1277 , C21D8/1283 , C21D2201/05 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C23C8/26 , H01F1/14783 , H01F1/14791 , H01F1/18 , H01F41/32
摘要： A manufacturing method of oriented silicon steel with magnetic induction B8 of not less than 1.88T, comprising the following steps: 1) smelting and continuously casting to obtain a slab, wherein the content of N is controlled at 0.002-0.014wt% in the smelting stage; 2) hot-rolling; 3) cold-rolling; 4) decarbonizing and annealing; 5) nitriding treatment, wherein infiltrated nitrogen content [N] D is controlled to satisfy the formula: 328-0.14a-0.85b-2.33c‰¤[N] D ‰¤362-0.16a-0.94b-2.57c, wherein a is the content of Als in the smelting step, with the unit of ppm; b is the content of N element, with the unit of ppm; and c is primary grains size, with the unit of µm; 6) coating a surface with a magnesium oxide coating and annealing; and 7) applying an insulating coating.
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公开(公告)号：EP3992324A1
公开(公告)日：2022-05-04
申请号：EP20851796.1
申请日：2020-08-11
发明人： ZHANG, Huabing , LI, Guobao , SHEN, Kanyi , LIU, Baojun , HOU, Changjun , ZHANG, Xinqiang , CHEN, Jianbing , WU, Meihong , MA, Changsong , LIU, Desheng
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：EP3608428A1
公开(公告)日：2020-02-12
申请号：EP18776052.5
申请日：2018-01-24
发明人： WU, Meihong , ZHAO, Zipeng , LI, Guobao , SHEN, Kanyi , HU, Zhuochao , LING, Chen , SUN, Huande , ZHANG, Huabing
IPC分类号： C21D8/12 , B23K26/364 , H01F27/245 , H01F41/02
摘要： A grain-oriented silicon steel with low iron loss, wherein the silicon steel is provided with a plurality of grooves on its surface, each of the grooves is 10-60 µm in width and 5-40 µm in depth, and the spacing between adjacent grooves is 1-10 mm. The manufacturing method therefor comprises: scoring the surface of the grain-oriented silicon steel with low iron loss by using a laser in order to form the grooves. The grain-oriented silicon steel with low iron loss can maintain the magnetic domain refining effect in a stress-relief annealing process, and avoid the introduction of more residual stress.
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8.发明公开HIGH MAGNETIC INDUCTION ORIENTED SILICON STEEL AND MANUFACTURING METHOD THEREOF 审中-公开KORNORIENTIERTER SILICIUMSTAHL MIT HOHER MAGNETISCHER INDUKTION UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2891728A1
公开(公告)日：2015-07-08
申请号：EP12883627.7
申请日：2012-12-11
发明人： ZHANG, Huabing , LI, Guobao , LU, Xijiang , YANG, Yongjie , HU, Zhuochao , SHEN, Kanyi , GAO, Jiaqiang , WU, Meihong
摘要： The invention relates to high magnetic induction oriented silicon steel and a preparation method thereof. The oriented silicon steel comprises the following chemical elements by weight percent: 0.035-0.120% of C, 2.9-4.5% of Si, 0.05-0.20% of Mn, 0.005-0.050% of P, 0.005-0.012% of S, 0.015-0.035% of Als, 0.001-0.010% of N, 0.05-0.30% of Cr, 0.005-0.090% of Sn, not more than 0.0100% of V, not more than 0.0100% of Ti, at least one of trace elements of Sb, Bi, Nb and Mo, and the balance of Fe and other inevitable impurities, wherein Sb+Bi+Nb+Mo is 0.0015-0.0250% and (Sb/121.8+Bi/209.0+Nb/92.9+Mo/95.9)/(Ti/47.9+V/50.9) ranges from 0.1 to 15.
摘要翻译： 本发明涉及高磁感应取向硅钢及其制备方法。 定向硅钢由以下重量百分比组成：C：0.035-0.120％，Si：2.9-4.5％，Mn：0.05-0.20％，P：0.005-0.050％，S：0.005〜0.012％ 0.035％的Al，0.001-0.010％的N，0.05-0.30％的Cr，0.005-0.090％的Sn，不大于0.0100％的V，不大于0.0100％的Ti，Sb中的至少一种微量元素 ，Bi，Nb和Mo，余量为Fe等不可避免的杂质，Sb + Bi + Nb + Mo为0.0015〜0.0250％，（Sb / 121.8 + Bi / 209.0 + Nb / 92.9 + Mo / 95.9）/（ Ti / 47.9±V / 50.9）为0.1〜15。
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公开(公告)号：EP3763834A1
公开(公告)日：2021-01-13
申请号：EP19775425.2
申请日：2019-03-25
发明人： ZHANG, Huabing , CHU, Shuangjie , LI, Guobao , XIAO, Wen , LIU, Baojun , YANG, Yongjie , SHEN, Kanyi , HAN, Dan , HU, Zhining
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 4wt%, 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：EP3702476A1
公开(公告)日：2020-09-02
申请号：EP18871319.2
申请日：2018-05-16
发明人： ZHANG, Huabing , LI, Guobao , LIU, Baojun , HAN, Dan , ZHANG, Xinqiang , CUI, Guanghua , CHEN, Jianbing , XIAO, Wen , ZHAO, Zipeng
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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