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1. 发明申请

US20130233450A1 METHOD FOR MANUFACTURING ORIENTED SILICON STEEL PRODUCT WITH HIGH MAGNETIC-FLUX DENSITY 审中-公开
标题翻译：制造具有高磁通密度的定向硅钢产品的方法
公开(公告)号：US20130233450A1
公开(公告)日：2013-09-12
申请号：US13823424
申请日：2011-04-14
申请人： Qi Xu , Kanyi Shen , Guobao Li , Weizhong Jin , Bingzhong Jin , Dejun Su , Renbiao Zhang , Hai Liu
发明人： Qi Xu , Kanyi Shen , Guobao Li , Weizhong Jin , Bingzhong Jin , Dejun Su , Renbiao Zhang , Hai Liu
IPC分类号： C21D8/02
CPC分类号： C21D8/0284 , C21D8/0263 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , H01F1/16
摘要： A method for manufacturing an oriented silicon steel product with high magnetic-flux density comprises the following procedures: 1) smelting and casting, wherein the oriented silicon steel is composed of, by weight, 0.035˜0.065% of C, 2.9˜4.0% of Si, 0.05˜0.20% of Mn, 0.005˜0.01% of S, 0.015˜0.035% of Al, 0.004˜0.009% of N, 0.005˜0.090% of Sn, 0.200˜0.800% of Nb, the rest being Fe; and after being smelted, molten steel is secondarily refined and continuous casted into steel slabs; 2) hot rolling; 3) normalizing; 4) cold rolling; 5) decarburization annealing; 6) MgO coating; 7) high temperature annealing: said sheets are firstly heated to 700˜900° C. and then secondarily heated to 1200° C. at temperature rise rate of 9˜17° C./hr and maintained at 1200° C. for 20 hr; 8) coating an insulation layer. According to the present invention, steel sheets can be fully nitrided during high temperature annealing, which can ensure a secondary re-crystallization to take place perfectly, thereby, the oriented silicon steel sheets with high magnetic-flux density can be achieved. The present invention solves the problem of nitriding that is encountered in production of high-magnetic-induction oriented silicon steel by the technique to heat steel slabs to a lower temperature.
摘要翻译：制造具有高磁通密度的取向硅钢产品的方法包括以下步骤：1）熔炼和铸造，其中取向硅钢的重量为0.035〜0.065％的C，2.9〜4.0％的 Si，0.05〜0.20％的S，0.005〜0.01％的S，0.015〜0.035％的Al，0.004〜0.009％的N，0.005〜0.090％的Sn，0.200〜0.800％的Nb，其余为Fe; 冶炼后，将钢水二次精炼并连续铸造成钢板; 2）热轧; 3）归一化; 4）冷轧; 5）脱碳退火; 6）MgO涂层; 7）高温退火：首先将所述片材加热至700〜900℃，然后以9〜17℃/小时的升温速度二次加热至1200℃，并保持在1200℃20小时 ; 8）涂覆绝缘层。根据本发明，可以在高温退火时对钢板进行全面的氮化处理，从而能够进行二次再结晶化，从而能够实现高磁通密度的取向硅钢板。本发明解决了通过将钢板加热到较低温度的技术在生产高磁感应取向硅钢时遇到的氮化问题。

2. 发明授权

US09738946B2 Method for producing silicon steel normalizing substrate 有权
公开(公告)号：US09738946B2
公开(公告)日：2017-08-22
申请号：US14379595
申请日：2012-03-27
申请人： Hongxu Hei , Xiao Chen , Xiandong Liu , Shishu Xie , Dejun Su , Runjie Lin , Peili Zhang , Rongqiang Jiang , Miao Ye
发明人： Hongxu Hei , Xiao Chen , Xiandong Liu , Shishu Xie , Dejun Su , Runjie Lin , Peili Zhang , Rongqiang Jiang , Miao Ye
IPC分类号： C21D8/12 , C21D1/28 , C21D1/34 , H01F41/00 , C21D9/56
CPC分类号： C21D8/1261 , C21D1/28 , C21D1/34 , C21D9/561 , H01F41/00
摘要： A method for producing a silicon steel normalizing substrate comprises steelmaking, hot rolling and normalizing steps. A normalizing furnace is used in the normalizing step, and along a moving direction of strip steel, the normalizing furnace sequentially comprises: a preheating section, a nonoxidizing heating section, a furnace throat, furnace sections for subsequent normalizing processing, and a delivery seal chamber. Furnace pressures of the normalizing furnace are distributed as follows: the furnace pressure of a downstream furnace section adjacent to the furnace throat along the moving direction of the strip steel is the highest, the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an inlet direction of the normalizing furnace, and the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an outlet direction of the normalizing furnace.

3. 发明授权

US09056343B2 Cold-rolling method for preventing fracture of high-silicon strip steel 有权
$Cold-rolling method for preventing fracture of high-silicon strip steel$
标题翻译：防止高硅钢带断裂的冷轧方法
公开(公告)号：US09056343B2
公开(公告)日：2015-06-16
申请号：US13576115
申请日：2011-04-28
申请人： Dejun Su , Yong Li , Runjie Lin , Minghua Shen , Hongbing Wang , Huaqun Zhu , Xuechang You , Guiling Zhou
发明人： Dejun Su , Yong Li , Runjie Lin , Minghua Shen , Hongbing Wang , Huaqun Zhu , Xuechang You , Guiling Zhou
IPC分类号： B21B45/02 , B21B3/02 , B21B13/14 , B21B37/74 , B21B1/22
CPC分类号： B21B45/02 , B21B3/02 , B21B13/147 , B21B37/74 , B21B45/0218 , B21B45/0251 , B21B2001/221 , B21B2261/20
摘要： A cold-rolling method for preventing fracture of high-silicon strip steel, characterized in that the high-silicon strip steel has a Si content ≧2.3 wt %, and at the beginning of cold-rolling, the temperature of inlet strip steel is above 45° C.; during the cold-rolling process, an emulsion liquid is sputtered to the strip steel, a flow rate of the emulsion liquid is 3500 L/min at the inlet in rolling direction, a flow rate of the emulsion liquid is 1500-4000 L/min at an outlet in the rolling direction, and the temperature of the strip steel is maintained above 45° C. under the precondition to guarantee technological lubrication. The cold-rolling method of the invention might prevent fracture of a head portion and a tail portion of the strip steel, raise the rate of finished products, and increase production efficiency.
摘要翻译：一种用于防止高硅带钢断裂的冷轧方法，其特征在于，高硅带钢的Si含量为2.3重量％，在冷轧开始时，入口带钢的温度高于 45°C。在冷轧过程中，将乳液液体溅射到带钢上，乳液的流速在轧制方向的入口为3500L / min，乳液的流量为1500-4000L / min 在轧制方向的出口处，在预条件下将带钢的温度保持在45℃以上，以保证技术润滑。本发明的冷轧方法可以防止带钢的头部和尾部的断裂，提高成品率，提高生产效率。

4. 发明申请

US20120304721A1 COLD-ROLLING METHOD FOR PREVENTING FRACTURE OF HIGH-SILICON STRIP STEEL 有权
标题翻译：用于防止高硅钢片断裂的冷轧方法
公开(公告)号：US20120304721A1
公开(公告)日：2012-12-06
申请号：US13576115
申请日：2011-04-28
申请人： Dejun Su , Yong Li , Runjie Lin , Minghua Shen , Hongbing Wang , Huaqun Zhu , Xuechang You , Guiling Zhou
发明人： Dejun Su , Yong Li , Runjie Lin , Minghua Shen , Hongbing Wang , Huaqun Zhu , Xuechang You , Guiling Zhou
IPC分类号： B21B45/02
CPC分类号： B21B45/02 , B21B3/02 , B21B13/147 , B21B37/74 , B21B45/0218 , B21B45/0251 , B21B2001/221 , B21B2261/20
摘要： A cold-rolling method for preventing fracture of high-silicon strip steel, characterized in that the high-silicon strip steel has a Si content ≧2.3 wt %, and at the beginning of cold-rolling, the temperature of inlet strip steel is above 45° C.; during the cold-rolling process, an emulsion liquid is sputtered to the strip steel, a flow rate of the emulsion liquid is 3500 L/min at the inlet in rolling direction, a flow rate of the emulsion liquid is 1500-4000 L/min at an outlet in the rolling direction, and the temperature of the strip steel is maintained above 45° C. under the precondition to guarantee technological lubrication. The cold-rolling method of the invention might prevent fracture of a head portion and a tail portion of the strip steel, raise the rate of finished products, and increase production efficiency.
摘要翻译：一种用于防止高硅带钢断裂的冷轧方法，其特征在于，高硅带钢的Si含量为2.3重量％，在冷轧开始时，入口带钢的温度高于 45°C。在冷轧过程中，将乳液液体溅射到带钢上，乳液的流速在轧制方向的入口为3500L / min，乳液的流量为1500-4000L / min 在轧制方向的出口处，在预条件下将带钢的温度保持在45℃以上，以保证技术润滑。本发明的冷轧方法可以防止带钢的头部和尾部的断裂，提高成品率，提高生产效率。

5. 发明申请

US20150013846A1 Method for Producing Silicon Steel Normalizing Substrate 有权
标题翻译：生产硅钢标准化基板的方法
公开(公告)号：US20150013846A1
公开(公告)日：2015-01-15
申请号：US14379595
申请日：2012-03-27
申请人： Hongxu Hei , Xiao Chen , Xiandong Liu , Shishu Xie , Dejun Su , Runjie Lin , Peili Zhang , Rongqiang Jiang , Miao Ye
发明人： Hongxu Hei , Xiao Chen , Xiandong Liu , Shishu Xie , Dejun Su , Runjie Lin , Peili Zhang , Rongqiang Jiang , Miao Ye
IPC分类号： C21D8/12 , C21D1/34 , H01F41/00
CPC分类号： C21D8/1261 , C21D1/28 , C21D1/34 , C21D9/561 , H01F41/00
摘要： A method for producing a silicon steel normalizing substrate comprises steelmaking, hot rolling and normalizing steps. A normalizing furnace is used in the normalizing step, and along a moving direction of strip steel, the normalizing furnace sequentially comprises: a preheating section, a nonoxidizing heating section, a furnace throat, furnace sections for subsequent normalizing processing, and a delivery seal chamber. Furnace pressures of the normalizing furnace are distributed as follows: the furnace pressure of a downstream furnace section adjacent to the furnace throat along the moving direction of the strip steel is the highest, the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an inlet direction of the normalizing furnace, and the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an outlet direction of the normalizing furnace.
摘要翻译：一种硅钢标准化衬底的制造方法包括炼钢，热轧和归一化步骤。在归一化步骤中使用归一化炉，并且沿着带钢的移动方向，归一化炉依次包括：预热部，非氧化加热部，炉喉，随后的标准化处理的炉部，以及输送密封室。归一化炉的炉压分布如下：沿钢带移动方向与炉喉相邻的下游炉段的炉膛压力最高，炉膛压力从炉膛最高炉膛压力逐渐降低到归一化炉的入口方向的炉段，并且炉压力从具有最高炉压的炉段逐渐降低到归一化炉的出口方向的炉段。

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