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公开(公告)号：EP2824193A1
公开(公告)日：2015-01-14
申请号：EP12870516.7
申请日：2012-03-26
发明人： HEI, Hongxu , WANG, Bo , XIE, Shishu , LIU, Xiandong , YANG, Guohua , YANG, Yongjie , MA, Aihua , LI, Xiaolin , ZOU, Liang , ZHANG, Huawei
CPC分类号： C21D8/1261 , C21D1/28 , C21D1/34 , C21D1/76 , C21D6/008 , C21D8/1222 , C21D8/1233 , C21D9/46 , H01F41/00
摘要： A method for producing a silicon steel normalizing substrate comprises: steelmaking, hot rolling and normalizing steps. The normalizing step uses a normalizing furnace having a nonoxidizing heating furnace section. The nonoxidizing heating fur - nace section comprises more than 3 furnace zones. An energy investment ratio of the furnace zones used in the nonoxidizing heating furnace section is adjusted, so as to control an excess coefficient α of the nonoxidizing heating furnace section to be within a range of 0.8≤α
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公开(公告)号：EP2826871B1
公开(公告)日：2018-10-17
申请号：EP12871183.5
申请日：2012-03-29
发明人： ZHANG, Huawei , WU, Yaping , GONG, Yu , SUN, Yezhong , HEI, Hongxu
CPC分类号： H01F1/14766 , C21D1/26 , C21D6/00 , C21D6/008 , C21D8/021 , C21D8/041 , C21D8/1205 , C21D8/1216 , C21D8/1244 , C21D9/0081 , C21D9/70 , C21D2201/05 , C22C38/02 , H01F41/00
摘要： A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is °C/min; t is a total heating time of the slab in the heating furnace, and t=180-240min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is °C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220 �¢ min t × 100 �¢ ° �¢ C T C + 200 �¢ ° �¢ C × 25 �¢ ° �¢ C / min
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公开(公告)号：EP2821511B1
公开(公告)日：2018-08-08
申请号：EP12869907.1
申请日：2012-12-11
发明人： XIE, Shishu , LIU, Xiandong , CHEN, Xiao , HEI, Hongxu , WANG, Bo , MA, Aihua , ZOU, Liang , ZHANG, Huawei , CAO, Wei , ZHANG, Feng , LIU, Junliang
IPC分类号： C21D8/12 , C21D1/26 , C22C38/06 , C22C38/00 , C21C5/28 , C21D6/00 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/60 , H01F1/147
CPC分类号： H01F1/14775 , C21C7/068 , C21D6/008 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , H01F1/14791
摘要： The present invention provides a non-oriented silicon steel with excellent magnetic properties and a manufacturing process therefor. During the manufacturing process of the present invention, the temperature T of the molten steel of steel tapped from a converter during steelmaking and the carbon content [C] and the free oxygen content [O] comply with the following formula: 7.27x10 3
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4.发明公开
公开(公告)号：EP2826871A1
公开(公告)日：2015-01-21
申请号：EP12871183.5
申请日：2012-03-29
发明人： ZHANG, Huawei , WU, Yaping , GONG, Yu , SUN, Yezhong , HEI, Hongxu
CPC分类号： H01F1/14766 , C21D1/26 , C21D6/00 , C21D6/008 , C21D8/021 , C21D8/041 , C21D8/1205 , C21D8/1216 , C21D8/1244 , C21D9/0081 , C21D9/70 , C21D2201/05 , C22C38/02 , H01F41/00
摘要： A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is °C/min; t is a total heating time of the slab in the heating furnace, and t=180-240min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is °C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220 min t × 100 ° C T C + 200 ° C × 25 ° C / min
摘要翻译： 热轧硅钢的制造方法包括：硅钢板坯加热工序，粗轧工序和精轧工序。 加热过程包括预热阶段，加热阶段和均热阶段。 预热阶段满足下式（1）。 在配方中，VTp为预热阶段的升温速度，单位为℃/ min; t是加热炉中板坯的总加热时间，t = 180〜240min; Tc是板坯放入炉内时的初始温度，单位为℃。 通过使用上述公式，可以改变加热处理和粗轧工序，能够降低热轧硅钢的制造时的边缘缺陷的发生率，能够制造出具有良好的表面质量的热轧硅钢。 V Tp> 220 ¢min t×100 ¢¢¢¢C T C + 200 ¢° ¢C×25 ¢¢¢¢C / min
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5.发明公开
公开(公告)号：EP3778976A1
公开(公告)日：2021-02-17
申请号：EP19803939.8
申请日：2019-05-15
发明人： WANG, Zhiyu , JIAO, Sihai , QIANG, Shaoming , ZHANG, Huawei
摘要： Disclosed in the present invention is a high-strength double-sided stainless steel clad sheet, including a substrate layer, and stainless steel clad layers clad-rolled on double sides of the substrate layer. The substrate layer consists, in mass percent, the chemical elements: C: 0.03-0.12%, 0
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公开(公告)号：EP2821511A1
公开(公告)日：2015-01-07
申请号：EP12869907.1
申请日：2012-12-11
发明人： XIE, Shishu , LIU, Xiandong , CHEN, Xiao , HEI, Hongxu , WANG, Bo , MA, Aihua , ZOU, Liang , ZHANG, Huawei , CAO, Wei , ZHANG, Feng , LIU, Junliang
CPC分类号： H01F1/14775 , C21C7/068 , C21D6/008 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , H01F1/14791
摘要： The present invention provides a non-oriented silicon steel with excellent magnetic properties and a manufacturing process therefor. During the manufacturing process of the present invention, the temperature T of the molten steel of steel tapped from a converter during steelmaking and the carbon content [C] and the free oxygen content [O] comply with the following formula: 7.27x10 3 -5000/T ) ≤2.99x10 4 , and the final annealing step uses tension annealing at a low temperature for a short time. A non-oriented silicon steel with a low iron loss, and excellent anisotropy of iron loss can be obtained by means of the manufacturing process of the present invention.
摘要翻译： 本发明提供具有优异磁性的无取向硅钢及其制造方法。 在本发明的制造过程中，炼钢时从转炉出钢的钢水温度T和碳含量[C]和游离氧含量[O]满足下式：7.27×10 3 <[O （-5000 / T）≤2.99×104，最终退火步骤在短时间内使用低温拉伸退火。 通过本发明的制造方法，可以得到铁损低，铁损的各向异性优异的无取向硅钢。
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