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1. 发明授权

EP2902507B1 MANUFACTURING METHOD OF COMMON GRAIN-ORIENTED SILICON STEEL WITH HIGH MAGNETIC INDUCTION 有权
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
申请人： Baoshan Iron & Steel Co., Ltd.
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
IPC分类号： C21D8/12 , C22C38/04 , H01F1/16
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.

2. 发明公开

EP2532758A1 MANUFACTURE METHOD OF HIGH EFFICIENCY NON-ORIENTED SILICON STEEL HAVING GOOD MAGNETIC PERFORMANCE 有权
标题翻译：方法对于具有高磁能高产高效没有对齐硅钢
公开(公告)号：EP2532758A1
公开(公告)日：2012-12-12
申请号：EP11835498.4
申请日：2011-04-27
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： MA, Aihua , WANG, Bo , XIE, Shishu , HU, Zhanyuan , ZOU, Liang , WANG, Zitao , ZHU, Yuhua , HUANG, Jie , JIN, Bingzhong , LIU, Xiandong
IPC分类号： C21D8/12 , C22C38/60
CPC分类号： C21D8/005 , C21D8/1261 , C21D8/1272 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/60 , H01F1/16
摘要： A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C≤ 0.0040%, Si:0.1∼0.8%, Al:0.002∼1.0%, Mn:0.10∼1.50%, P:≤0.2%, Sb:0.04∼0.08%, S≤0.0030%, N≤0.0020%, Ti ≤ 0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100 °C~1150 °C and finish-rolling temperature is 860 °C ∼920 °C; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30xSb%)s ≤t≤7s; thereafter reeling at a temperature ≥720°C ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70∼78%; 4) annealing; heating up the cold-rolled plate to 800∼1000 °C at heating rate of ≥ 15 °C/s, and holding time is 10~25s. Under the precondition to ensure magnetic properties, this invention implements low cost manufacture of high efficiency electric steel by adding elements advantageous to favorable texture during steel making, controlling contents of adverse elements and coordinating air cooling time control during hot-rolling with high temperature reeling.
摘要翻译：高效率的无取向硅钢的具有优异的磁特性，其包括以下步骤的制造方法：1）熔炼和铸造; 无取向硅钢，按重量百分比计的化学组成，是：C‰¤0.0040％以下，Si：0.1¼0.8％以下，Al：0.002¼1.0％以下，Mn：0.10¼1.50％，P：‰¤0.2 ％，锑：0.04¼0.08％，S‰¤0.0030％，N‰¤0.0020％以下，Ti‰¤0.0020％，其余是Fe和不可避免的夹杂物; 与上述组合物雅舞蹈钢水熔炼，然后浇铸成坯料; 2）热轧和酸洗; 加热温度为板坯1100℃〜1150℃，终轧温度为860℃¼920℃; 轧制后，热轧产品空气冷却，其中空气冷却时间t期间：（2 + 30xSb％）S‰‰¤t¤7s; 此后在‰¥720℃的温度下卷取; 3）冷轧; 轧，以形成冷轧板与的70¼78％的压缩比目标厚度; 4）退火; 在‰¥15℃/ s的升温速度升温的冷轧板以800¼1000℃，保持时间为10〜25秒。在先决条件下，以确保磁特性，本发明实现了低成本的制造高效率电动钢的由炼钢过程中加入有利的有利纹理元素，控制不良的元素的含量，并在热轧高温卷取协调空气冷却时间控制。

3. 发明公开

EP2902507A1 MANUFACTURING METHOD OF COMMON GRAIN-ORIENTED SILICON STEEL WITH HIGH MAGNETIC INDUCTION 有权
标题翻译：产粮大取向硅钢高磁感过程
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
申请人： Baoshan Iron & Steel Co., Ltd.
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
IPC分类号： C21D8/12 , C22C38/04 , H01F1/16
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.

4. 发明公开

EP2533067A1 ELECTROMAGNETIC PERFORMANCE DETECTION METHOD FOR ORIENTED SILICON STEEL 有权
标题翻译： VERFAHREN ZUR ERKENNUNG EINER ELEKTROMAGNETISCHEN LEISTUNGFÜRORIENTIERTEN ALUMINIUMSTAHL
公开(公告)号：EP2533067A1
公开(公告)日：2012-12-12
申请号：EP11797513.6
申请日：2011-04-12
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： WU, Meihong , JIN, Weizhong , SUN, Huande , YANG, Guohua , SHEN, Kanyi , HUANG, Jie , LI, Guobao
IPC分类号： G01R33/12 , G01N27/72
CPC分类号： G06F17/13 , G01N27/72 , G01R33/0064
摘要： A method for detecting electromagnetic property of oriented silicon steel, the method comprises: measuring Euler angles of each of crystal grains in a specimen by use of metallographic etch-pit method; calculating orientation deviation angle θ i (degree) of the crystal grain; combining area Si (mm 2 ) of the crystal grain and correction coefficient X of element Si (X=0.1~10T/degree); correcting on the basis of the magnetic property B 0 (saturation magnetic induction, T) of single-crystal material by using these parameters (θ i , S i , X), formula for correcting is

obtaining electromagnetic property B 8 of the oriented silicon steel by the above calculations. The present invention can implement detection of electromagnetic property of a specimen under the circumstances that there is no magnetism measuring device or that magnetism measuring devices cannot be used due to reasons such as weight and size of the specimen being too small or surface quality of the specimen being poor.
摘要翻译：一种检测取向硅钢的电磁特性的方法，该方法包括：使用金相蚀刻法测量样品中每个晶粒的欧拉角; 计算晶粒的取向偏差角度¸i（度）; 将晶粒的面积Si（mm 2）和元素Si的校正系数X（X = 0.1〜10T /度）组合; 通过使用这些参数（¸i，S i，X），基于单晶材料的磁特性B 0（饱和磁感应，T）进行校正，校正公式是获得取向硅钢的电磁特性B 8 通过上述计算。本发明可以在没有磁测量装置的情况下实现试样的电磁特性，或由于试样的重量和尺寸或试样的表面质量等原因，不能使用磁测量装置穷人

5. 发明授权

EP2532758B1 MANUFACTURE METHOD OF HIGH EFFICIENCY NON-ORIENTED SILICON STEEL HAVING GOOD MAGNETIC PERFORMANCE 有权
公开(公告)号：EP2532758B1
公开(公告)日：2018-07-18
申请号：EP11835498.4
申请日：2011-04-27
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： MA, Aihua , WANG, Bo , XIE, Shishu , HU, Zhanyuan , ZOU, Liang , WANG, Zitao , ZHU, Yuhua , HUANG, Jie , JIN, Bingzhong , LIU, Xiandong
IPC分类号： C21D8/12 , C22C38/60 , H01F1/16
CPC分类号： C21D8/005 , C21D8/1261 , C21D8/1272 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/60 , H01F1/16
摘要： A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C‰¤ 0.0040%, Si:0.1ˆ¼0.8%, Al:0.002ˆ¼1.0%, Mn:0.10ˆ¼1.50%, P:‰¤0.2%, Sb:0.04ˆ¼0.08%, S‰¤0.0030%, N‰¤0.0020%, Ti ‰¤ 0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100 °C~1150 °C and finish-rolling temperature is 860 °C ˆ¼920 °C; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30xSb%)s ‰¤t‰¤7s; thereafter reeling at a temperature ‰¥720°C ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70ˆ¼78%; 4) annealing; heating up the cold-rolled plate to 800ˆ¼1000 °C at heating rate of ‰¥ 15 °C/s, and holding time is 10~25s. Under the precondition to ensure magnetic properties, this invention implements low cost manufacture of high efficiency electric steel by adding elements advantageous to favorable texture during steel making, controlling contents of adverse elements and coordinating air cooling time control during hot-rolling with high temperature reeling.

6. 发明授权

EP2644715B1 MANUFACTURE METHOD OF ORIENTED SILICON STEEL HAVING GOOD MAGNETIC PERFORMANCE 有权
标题翻译：一种具有良好磁性能的取向硅钢的制造方法
公开(公告)号：EP2644715B1
公开(公告)日：2018-04-25
申请号：EP11842864.8
申请日：2011-04-28
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： WU, Meihong , JIN, Weizhong , SUN, Huande , YANG, Guohua , SHEN, Kanyi , HUANG, Jie , HU, Deyang , LI, Guobao
IPC分类号： C21D8/12 , B21B37/48
CPC分类号： C21D8/12 , C21D8/1244 , C21D8/1272 , C21D8/1277 , C21D8/1283 , C21D2201/05 , C21D2211/008
摘要： A method for manufacturing a grain-oriented silicon steel having excellent magnetic performance, comprising steps as follows 1) conventionally melting and casting into a steel blank; 2) heating the steel blank and hot rolling the same into a strip of steel; 3)normalizing process; carrying out the normalizing process having two stages, wherein the strip is firstly heated to 1100ˆ¼1200°C, then cooled to 900ˆ¼1000 °C within 50-200s; and next, the strip is rapidly cooled in water having a temperature of 10ˆ¼100; in this period, a tension force is applied to the strip of steel, the strip of steel in the temperature range of 900°Cˆ¼500°C has a stress of 1ˆ¼200N/mm 2 ; 4)cold rolling, i.e. carrying out a primary cold rolling, or a double cold rolling with intermediate annealing; 5)carrying out primary recrystallizing annealing, then coating an annealing separator, whose main composition is MgO, to carry out final product annealing comprising secondary recrystallizing annealing and purifying annealing. The invention optimizes the content and distribution of martensite in the steel plate after normalization by adjusting the tension force applied to the steel plate while normalization transformation, so as to make the content of martensite in the range ensuring a better magnetic performance of the final product and to optimize the magnetic performance of final products.

7. 发明授权

EP2533067B1 ELECTROMAGNETIC PERFORMANCE DETECTION METHOD FOR ORIENTED SILICON STEEL 有权
公开(公告)号：EP2533067B1
公开(公告)日：2018-08-15
申请号：EP11797513.6
申请日：2011-04-12
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： WU, Meihong , JIN, Weizhong , SUN, Huande , YANG, Guohua , SHEN, Kanyi , HUANG, Jie , LI, Guobao
IPC分类号： G01R33/12 , G01N27/72 , G01R33/00 , G06F17/13
CPC分类号： G06F17/13 , G01N27/72 , G01R33/0064
摘要： A method for detecting electromagnetic property of oriented silicon steel, the method comprises: measuring Euler angles of each of crystal grains in a specimen by use of metallographic etch-pit method; calculating orientation deviation angle ¸ i (degree) of the crystal grain; combining area Si (mm 2 ) of the crystal grain and correction coefficient X of element Si (X=0.1~10T/degree); correcting on the basis of the magnetic property B 0 (saturation magnetic induction, T) of single-crystal material by using these parameters (¸ i , S i , X), formula for correcting is obtaining electromagnetic property B 8 of the oriented silicon steel by the above calculations. The present invention can implement detection of electromagnetic property of a specimen under the circumstances that there is no magnetism measuring device or that magnetism measuring devices cannot be used due to reasons such as weight and size of the specimen being too small or surface quality of the specimen being poor.

8. 发明授权

EP2623566B1 NON-CHROMIC INSULATING COATING FOR NON-ORIENTED SILICON STEEL 有权
标题翻译：非定向硅钢的无铬绝缘涂层
公开(公告)号：EP2623566B1
公开(公告)日：2017-11-01
申请号：EP11827948.8
申请日：2011-04-13
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： XU, Yunpeng , YANG, Yongjie , LI, Dengfeng , JI, Yaming , ZHAO, Zipeng , CHEN, Lingyun , CHEN, Xiao , HUANG, Jie
IPC分类号： C09D5/25 , C09D163/00 , C09D7/12
CPC分类号： C09D5/00 , C09D5/084 , C09D7/61 , C09D163/00 , H01B3/40
摘要： The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, by mass shares, the following components: metal dihydrogen phosphate salt of 100 shares, epoxy resin of 10~60 shares, naphthenate drier or isooctanoate metal salt drier of 0.001~10 shares, organic solvent of 0.001~100 shares and pure water of 60~2000 shares. The metal dihydrogen phosphate salt is Al(H 2 PO 4 )3, Mg(H 2 PO 4 ) 2 , Ca(H 2 PO 4 ) 2 or Zn(H 2 PO 4 ) 2 ; the epoxy resin is water- soluble epoxy resin or epoxy resin emulsion. Chromium-free insulation coating material of the present invention, after being coated on non-oriented silicon steel, renders highly transparent appearance, and has excellent insulativity, corrosion resistance, adhesiveness, weldability and manufacturability, so as to eliminate defects of the existing chromium-free coating, such as sticky and un-wear-resistant and to meet environment protection requirements.

9. 发明公开

EP2644715A1 MANUFACTURE METHOD OF ORIENTED SILICON STEEL HAVING GOOD MAGNETIC PERFORMANCE 有权
标题翻译： HERSTELLUNGSVERFAHRENFÜREINEN AUSGERICHTETEN SILICIUMSTAHL MIT HOHER MAGNETKRAFT
公开(公告)号：EP2644715A1
公开(公告)日：2013-10-02
申请号：EP11842864.8
申请日：2011-04-28
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： WU, Meihong , JIN, Weizhong , SUN, Huande , YANG, Guohua , SHEN, Kanyi , HUANG, Jie , HU, Deyang , LI, Guobao
IPC分类号： C21D8/12 , B21B37/48
CPC分类号： C21D8/12 , C21D8/1244 , C21D8/1272 , C21D8/1277 , C21D8/1283 , C21D2201/05 , C21D2211/008
摘要： A method for manufacturing a grain-oriented silicon steel having excellent magnetic performance, comprising steps as follows 1) conventionally melting and casting into a steel blank; 2) heating the steel blank and hot rolling the same into a strip of steel; 3)normalizing process; carrying out the normalizing process having two stages, wherein the strip is firstly heated to 1100∼1200°C, then cooled to 900∼1000 °C within 50-200s; and next, the strip is rapidly cooled in water having a temperature of 10∼100; in this period, a tension force is applied to the strip of steel, the strip of steel in the temperature range of 900°C∼500°C has a stress of 1∼200N/mm 2 ; 4)cold rolling, i.e. carrying out a primary cold rolling, or a double cold rolling with intermediate annealing; 5)carrying out primary recrystallizing annealing, then coating an annealing separator, whose main composition is MgO, to carry out final product annealing comprising secondary recrystallizing annealing and purifying annealing. The invention optimizes the content and distribution of martensite in the steel plate after normalization by adjusting the tension force applied to the steel plate while normalization transformation, so as to make the content of martensite in the range ensuring a better magnetic performance of the final product and to optimize the magnetic performance of final products.
摘要翻译：一种制造具有优异磁性能的晶粒取向硅钢的方法，包括以下步骤：1）常规地熔融和铸造成钢坯; 2）加热钢坯并将其热轧成钢带; 3）归一化过程; 进行两阶段的归一化处理，首先将钢带加热至1100-11200℃，然后在50-200秒内冷却至900-1000℃; 然后将条带在温度为10-1100的水中快速冷却; 在此期间，对钢带施加张力，在900℃〜500℃的温度范围内钢带的应力为1 / 200N / mm 2; 4）冷轧，即进行一次冷轧，或进行中间退火的双层冷轧; 5）进行一次再结晶退火，然后涂覆主要组成为MgO的退火分离剂，进行包括二次再结晶退火和纯化退火的最终产品退火。本发明通过调整在正常化转变时施加到钢板上的张力而使归一化后的钢板中的马氏体的含量和分布优化，使马氏体含量在确保最终产品更好的磁性能的范围内; 以优化最终产品的磁性能。

10. 发明公开

EP2623566A1 NON-CHROMIC INSULATING COATING FOR NON-ORIENTED SILICON STEEL 有权
标题翻译： ISOLIERENDE NICHT-CHROM-BESCHICHTUNGFÜRNICHTORIENTIERTEN SILICIUMSTAHL
公开(公告)号：EP2623566A1
公开(公告)日：2013-08-07
申请号：EP11827948.8
申请日：2011-04-13
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： XU, Yunpeng , YANG, Yongjie , LI, Dengfeng , JI, Yaming , ZHAO, Zipeng , CHEN, Lingyun , CHEN, Xiao , HUANG, Jie
IPC分类号： C09D5/25 , C09D163/00 , C09D7/12
CPC分类号： C09D5/00 , C09D5/084 , C09D7/61 , C09D163/00 , H01B3/40
摘要： The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, by mass shares, the following components: metal dihydrogen phosphate salt of 100 shares, epoxy resin of 10~60 shares, naphthenate drier or isooctanoate metal salt drier of 0.001~10 shares, organic solvent of 0.001~100 shares and pure water of 60~2000 shares. The metal dihydrogen phosphate salt is Al(H 2 PO 4 )3, Mg(H 2 PO 4 ) 2 , Ca(H 2 PO 4 ) 2 or Zn(H 2 PO 4 ) 2 ; the epoxy resin is water- soluble epoxy resin or epoxy resin emulsion. Chromium-free insulation coating material of the present invention, after being coated on non-oriented silicon steel, renders highly transparent appearance, and has excellent insulativity, corrosion resistance, adhesiveness, weldability and manufacturability, so as to eliminate defects of the existing chromium-free coating, such as sticky and un-wear-resistant and to meet environment protection requirements.
摘要翻译：本发明涉及一种用于非取向硅钢的无铬绝缘涂层材料，其包括以下组分：100份的金属二氢磷酸盐，10〜60份的环氧树脂，环烷酸盐干燥剂或异辛酸盐金属盐干燥剂为0.001〜10股，有机溶剂为0.001〜100股，纯水为60〜2000股。磷酸金属盐为Al（H 2 PO 4）3，Mg（H 2 PO 4）2，Ca（H 2 PO 4）2或Zn（H 2 PO 4）2; 环氧树脂是水溶性环氧树脂或环氧树脂乳液。本发明的无铬绝缘涂层材料涂覆在非取向硅钢上后，呈现出高度透明的外观，并且具有优异的绝缘性，耐腐蚀性，粘合性，可焊性和可制造性，从而消除了现有的铬 - 自由涂层，如粘性和不耐磨损，并符合环保要求。

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