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1. 发明公开

EP3604565A1 LASER-ETCHED GRAIN-ORIENTED SILICON STEEL RESISTANT TO STRESS RELIEF/ANNEALING AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：EP3604565A1
公开(公告)日：2020-02-05
申请号：EP18774249.9
申请日：2018-01-24
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： ZHAO, Zipeng , LI, Guobao , YANG, Yongjie , WU, Meihong , MA, Changsong , JI, Yaming , LING, Chen , XIE, Weiyong , GUO, Jianguo
IPC分类号： C21D8/12
摘要： A laser-scribed grain-oriented silicon steel resistant to stress-relief annealing and a manufacturing method therefor. Parallel linear grooves (20) are formed on one or both sides of grain-oriented silicon steel (10) by laser etching. The linear grooves (20) are perpendicular to, or at an angle to, the rolling direction of the steel plate. A maximum height of edge protrusions of the linear grooves (20) does not exceed 5 µm, and a maximum height of spatters in etch-free regions between adjacent linear grooves (20) does not exceed 5 µm, and the proportion of an area occupied by spatters in the vicinity of the linear grooves (20) does not exceed 5%. The steel has low manufacturing costs, and the etching effect of the finished steel is retained during a stress-relief annealing process. The steel is suitable for manufacturing of wound iron core transformers.

2. 发明授权

EP2272995B1 A MANUFACTURING METHOD OF ORIENTED SI STEEL WITH HIGH ELECTRIC-MAGNETIC PROPERTY 有权
标题翻译：制造方法取向硅钢具有高的电，磁感式
公开(公告)号：EP2272995B1
公开(公告)日：2012-09-05
申请号：EP09725052.6
申请日：2009-03-25
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： YANG, Guohua , SUN, Huande , JI, Yaming , LI, Guobao , HEI, Hongxu
IPC分类号： C21D1/26 , C21D8/12 , C21D6/00 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , B21B1/24 , C22C38/16 , C21D3/04 , C21D8/02
CPC分类号： C22C38/02 , C21D1/26 , C21D3/04 , C21D6/008 , C21D8/02 , C21D8/0278 , C21D8/0284 , C21D8/12 , C21D8/1233 , C21D8/1255 , C21D8/1266 , C21D8/1283 , C21D9/46 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/16

3. 发明公开

EP2634270A1 ANNEALING SEPARATION AGENT FOR PRODUCING GRAIN-ORIENTED SILICON STEEL WITH SMOOTH SURFACE AND GOOD MAGNETIC PROPERTY 有权
标题翻译：发光的RACE手段取向硅钢具有光滑的表面和良好的磁特性生产
公开(公告)号：EP2634270A1
公开(公告)日：2013-09-04
申请号：EP11835488.5
申请日：2011-04-14
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： ZHAO, Zipeng , JI, Yaming , YANG, Yongjie , LI, Guobao , LI, Dengfeng , XU, Yunpeng
IPC分类号： C21D1/68
CPC分类号： C21D1/70 , C21D1/26 , C21D1/68 , C21D3/04 , C21D8/12 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , H01F1/16
摘要： An annealing separator for manufacturing grain-oriented silicon steel with mirror-like surface having good magnetic performance consists of the composition of which is 77-98 by wt% of Al 2 O 3 powder, 1-8 by wt% of alkaline earth powder, 1∼15 by wt% of alkali metal chloride and/or alkaline earth metal chloride. The annealing separator of the invention can avoid forming a glass-film undercoating on the surface of the steel sheet during high-temperature annealing, and at the same time, the oxide embedded at near-surface of the sheet is removed by means of corrosive reaction of the chloride, so that a produce with smooth surface and stable magnetic performance is obtained.
摘要翻译：退火分离用于制造与具有所有组合物，其是77-98重量％的Al 2 O 3粉末的良好的磁性能besteht镜状表面的晶粒取向硅钢，由碱土粉1-8％（重量）， 1¼15由碱金属氯化物和/或碱土金属氯化物重量％。本发明的退火分离可避免形成高温退火时的钢板的表面上形成玻璃膜底层，和在所述的Sametime，嵌入在片材的表面附近的氧化物是通过腐蚀反应的方法去除的氯化物，如此做了，表面光滑，稳定的磁性能产生被获得。

4. 发明公开

EP4261853A1 LOW-MAGNETOSTRICTIVE ORIENTED SILICON STEEL AND MANUFACTURING METHOD THEREFOR 审中-实审
公开(公告)号：EP4261853A1
公开(公告)日：2023-10-18
申请号：EP22736629.1
申请日：2022-01-11
申请人： BAOSHAN IRON & STEEL CO., LTD.
发明人： WU, Meihong , LI, Guobao , CHU, Shuangjie , ZHAO, Zipeng , LIU, Baojun , SHEN, Kanyi , YANG, Yongjie , HU, Zhuochao , JI, Yaming , LING, Chen
IPC分类号： H01F1/18 , B23K26/362 , C21D1/26 , C21D6/00 , C21D8/12 , C21D9/00 , C22C38/02
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.

5. 发明公开

EP2322674A1 A METHOD OF MANUFACTURING ORIENTED SI STEEL CONTAINING CU 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG VON ORIENTIERTEM CU-HALTIGEN SI-STAHL
公开(公告)号：EP2322674A1
公开(公告)日：2011-05-18
申请号：EP09804456.3
申请日：2009-04-24
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： JI, Yaming , SUN, Huande , YANG, Guohua , YANG, Yongjie , XU, Yunpeng , HUANG, Changguo , LI, Guobao
IPC分类号： C21D8/12 , C22C38/16
CPC分类号： C22C38/04 , C21D1/26 , C21D6/008 , C21D8/02 , C21D8/12 , C21D8/1233 , C21D8/1255 , C21D8/1266 , C21D8/1283 , C21D10/005 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/16
摘要： A method of manufacturing oriented Si steel containing Cu with high electric-magnetic property comprises: hot rolling slab; after first cold rolling, heating it to 800°C or higher temperature and performing intermediate decarburization annealing in a protective atmosphere with P H2O /P H2 of 0.50∼0.88 for 3-8 minutes, to decrease carbon content of the steel plate to less than 30ppm; then peening and acid-pickling to remove oxide of Fe on surface and to control oxygen content to lower than 500ppm; secondary cold rolling to final thickness and coating separation agent in water-slurry form; drying to decrease water content to lower than 1.5%; high-temperature annealing in a protective atmosphere containing hydrogen with oxidation degree (P H2O /P H2 ) of 0.0001-0.2; finally applying a tension coating and leveling tension annealing.
摘要翻译：含有具有高电磁性能的Cu的取向Si钢的方法包括：热轧板; 第一次冷轧后，将其加热到800℃以上，在保护气氛中进行中间脱碳退火，P H2O / P H2为0.50〜0.88，3-8分钟，使钢板的碳含量降低超过30ppm; 然后进行喷丸和酸洗以除去表面上的Fe的氧化物，并控制氧含量低于500ppm; 二次冷轧至最终厚度，涂层分离剂为水浆形式; 干燥以降低含水量至1.5％以下; 在含氢氧化程度（P H2O / P H2）为0.0001-0.2的保护气氛中进行高温退火; 最后应用张力涂层和流平张力退火。

6. 发明公开

EP3760745A1 HEAT-RESISTANT MAGNETIC DOMAIN REFINED GRAIN-ORIENTED SILICON STEEL AND MANUFACTURING METHOD THEREFOR 审中-实审
公开(公告)号：EP3760745A1
公开(公告)日：2021-01-06
申请号：EP18912118.9
申请日：2018-06-20
申请人： BAOSHAN IRON & STEEL CO., LTD.
发明人： CHU, Shuangjie , ZHAO, Zipeng , YANG, Yongjie , MA, Changsong , WU, Meihong , JI, Yaming , MA, Aihua , XIE, Weiyong , LIU, Hai , GUO, Jianguo
IPC分类号： C21D8/12 , H01F1/147 , C21D9/46 , B23K26/067
摘要： A heat-resistant magnetic domain refined grain-oriented silicon steel, a single-sided surface or a double-sided surface of which has several parallel grooves which are formed in a grooving manner, each groove extends in the width direction of the heat-resistant magnetic domain refined grain-oriented silicon steel, and the several parallel grooves are uniformly distributed along the rolling direction of the heat-resistant magnetic domain refined grain-oriented silicon steel. Each groove which extends in the width direction of the heat-resistant magnetic domain refined grain-oriented silicon steel is formed by splicing several sub-grooves which extend in the width direction of the heat-resistant magnetic domain refined grain-oriented silicon steel. The manufacturing method for a heat-resistant magnetic domain refined grain-oriented silicon steel comprises the step of: forming grooves on a single-sided surface or a double-sided surface of a heat-resistant magnetic domain refined grain-oriented silicon steel in a laser grooving manner, a laser beam of the laser grooving is divided into several sub-beams by a beam splitter, and the several sub-beams form the several sub-grooves which are spliced into the same groove.

7. 发明授权

EP2322674B1 A METHOD OF MANUFACTURING ORIENTED SI STEEL CONTAINING CU 有权
标题翻译：一种制造含铜方向SI钢的方法
公开(公告)号：EP2322674B1
公开(公告)日：2018-04-11
申请号：EP09804456.3
申请日：2009-04-24
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： JI, Yaming , SUN, Huande , YANG, Guohua , YANG, Yongjie , XU, Yunpeng , HUANG, Changguo , LI, Guobao
IPC分类号： C21D8/12 , C22C38/16
CPC分类号： C22C38/04 , C21D1/26 , C21D6/008 , C21D8/02 , C21D8/12 , C21D8/1233 , C21D8/1255 , C21D8/1266 , C21D8/1283 , C21D10/005 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/16
摘要： A method of manufacturing oriented Si steel containing Cu with high electric-magnetic property comprises: hot rolling slab; after first cold rolling, heating it to 800°C or higher temperature and performing intermediate decarburization annealing in a protective atmosphere with P H2O /P H2 of 0.50ˆ¼0.88 for 3-8 minutes, to decrease carbon content of the steel plate to less than 30ppm; then peening and acid-pickling to remove oxide of Fe on surface and to control oxygen content to lower than 500ppm; secondary cold rolling to final thickness and coating separation agent in water-slurry form; drying to decrease water content to lower than 1.5%; high-temperature annealing in a protective atmosphere containing hydrogen with oxidation degree (P H2O /P H2 ) of 0.0001-0.2; finally applying a tension coating and leveling tension annealing.

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

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。

10. 发明公开

EP2272995A1 A MANUFACTURING METHOD OF ORIENTED SI STEEL WITH HIGH ELECTRIC-MAGNETIC PROPERTY 有权
标题翻译： HERMTELLUNGSVERFAHRENFÜRORIENTIERTEN SI-STAHL MIT HOHER ELEKTRISCH-MAGNETISCHER EIGENSPRISHI
公开(公告)号：EP2272995A1
公开(公告)日：2011-01-12
申请号：EP09725052.6
申请日：2009-03-25
申请人： Baoshan Iron & Steel Co., Ltd.
发明人： YANG, Guohua , SUN, Huande , JI, Yaming , LI, Guobao , HEI, Hongxu
IPC分类号： C22C38/16 , C21D8/12
CPC分类号： C22C38/02 , C21D1/26 , C21D3/04 , C21D6/008 , C21D8/02 , C21D8/0278 , C21D8/0284 , C21D8/12 , C21D8/1233 , C21D8/1255 , C21D8/1266 , C21D8/1283 , C21D9/46 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/16
摘要： A manufacturing method of oriented Si steel with high electric-magnetic property comprises the following steps: smelting steel in converter or electric furnace; refining molten steel in two stages; continuous casting to obtain slab; hot rolling; first cold rolling; decarburizing annealing; secondary cold rolling; applying an annealing separator based on MgO and annealing at high temperature; applying an insulating coating and leveling tension annealing. The slab comprises (in wt%): C 0.020-0.050%, Si 2.6-3.6%, S 0.015-0.025%, Als 0.008-0.028%, N 0.005-0.020%, Mn 0.15-0.5%, Cu 0.3-1.2%, balance Fe and inevitable impurities, in which 10≤ Mn/S≤20 and Cu/Mn≥2. The method could produce oriented Si steel with high magnetic induction intensity and low iron loss at low cost.
摘要翻译：具有高电磁性能的取向Si钢的制造方法包括以下步骤：在转炉或电炉中冶炼钢; 两级精炼钢水; 连续铸造获得板坯; 热轧第一次冷轧; 脱碳退火; 二次冷轧; 应用基于MgO的退火分离器和高温退火; 施加绝缘涂层和流平张力退火。板坯包含（重量％）：C 0.020-0.050％，Si 2.6-3.6％，S 0.015-0.025％，Als 0.008-0.028％，N 0.005-0.020％，Mn 0.15-0.5％，Cu 0.3-1.2％，Fe和不可避免的杂质平衡，其中10‰‰Mn / S‰¤20和Cu / Mn‰2。该方法可以以低成本制造具有高磁感应强度和低铁损的取向Si钢。

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