公开(公告)号：US20130090876A1

公开(公告)日：2013-04-11

申请号：US13643371

申请日：2011-04-12

申请人： Meihong Wu ,  Weizhong Jin ,  Huande Sun ,  Guohua Yang ,  Kanyi Shen ,  Jie Huang ,  Guobao Li

发明人： Meihong Wu ,  Weizhong Jin ,  Huande Sun ,  Guohua Yang ,  Kanyi Shen ,  Jie Huang ,  Guobao Li

IPC分类号： 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 θi (degree) of the crystal grain; combining area Si (mm2) of the crystal grain and correction coefficient X of element Si (X=0.1˜10 T/degree); correcting on the basis of the magnetic property B0 (saturation magnetic induction, T) of single-crystal material by using these parameters (θi, Si, X), formula for correcting is B 8 = - 0.015 × X × ∑ n = 1 i  S i   θ i  ∑ n = 1 i  S i + ( B 0 - 0.04 ) ( 1 ) ; obtaining electromagnetic property B8 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： 一种用于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; 计算取向偏差角度;晶粒i（度）; 晶粒的面积Si（mm2）和元素Si的校正系数X（X = 0.1〜10T /度）; 通过使用这些参数（＆amp; i，Si，X），基于单晶材料的磁特性B0（饱和磁感应，T）进行校正，校正公式为B 8 = -0.015×X×Σn = 1我是我的老师 i≒Σn = 1 i S i +（B 0 - 0.04）（1）; 通过上述计算得到取向硅钢的电磁特性B8。 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的检测，或者由于试样的重量和尺寸或样品的表面质量等原因，不能使用磁性测定装置 穷人

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。

公开(公告)号：US09604312B2

公开(公告)日：2017-03-28

申请号：US13876932

申请日：2011-04-28

申请人： Wangya Huang ,  Guobao Li ,  Xinqiang Zhang ,  Xing Mao ,  Wanqing Guo ,  Jianru Zhu ,  Banglin Xiang

发明人： Wangya Huang ,  Guobao Li ,  Xinqiang Zhang ,  Xing Mao ,  Wanqing Guo ,  Jianru Zhu ,  Banglin Xiang

IPC分类号： B23K26/00 ,  B23K26/36 ,  C21D8/12 ,  B23K26/362 ,  C21D1/38

CPC分类号： B23K26/362 ,  B23K26/361 ,  C21D1/38 ,  C21D8/12 ,  C21D8/1294 ,  C21D2201/05

摘要： A fast-speed laser scoring method is provided, in which a set of related laser scoring device is used to simultaneously score lines on the upper surface and the lower surface of an oriented silicon steel strip, which is being fed and traveling forwards on a production line, with high-focalized continuous wave laser beam; the lines scored on the upper surface and the lines scored on the lower surface have the same space between every two adjacent scored lines but are staggered each other in order to reduce iron loss evenly. The space between every two adjacent scored lines on the same surface is 6-12 mm, laser power is 1000-3000 W and scanning speed is 100-400 m/min. The machining rate of the scoring method and device attains 1.5-2 times the one of conventional scoring methods which can not simultaneously score the upper and lower surfaces of a steel strip at a time. The lines scored on a steel strip by the method can reduce iron loss of the strip by 10-16%.