-
1.发明授权Low core loss grain-oriented electrical steel sheet and method for producing the same 有权低磁芯损耗晶粒取向电工钢板及其制造方法公开(公告)号：US08016951B2
公开(公告)日：2011-09-13
申请号：US11919580
申请日：2006-04-26
CPC分类号： H01F1/16 , H01F1/14775
摘要： An object of the present invention is to provide a grain-oriented electrical steel sheet with low core loss and low magnetostriction and a method for producing the same. The grain-oriented electrical steel sheet is excellent in reduced core loss and magnetostriction while under a high flux density of 1.9 T, comprises a refined magnetic domain comprising a laser irradiated portion which has melted and resolidified to form a solidified layer, wherein the thickness of the solidified layer is 4 μm or less. The grain-oriented electrical steel sheet may further comprise a laser irradiated portion where a surface roughness Rz is small and a cross section viewed from a transverse direction has a concave portion having a width of 200 μm or less and a depth of 10 μm or less for further improvement.
摘要翻译： 本发明的目的是提供一种低磁芯损耗和低磁致伸缩性的方向性电磁钢板及其制造方法。 晶粒取向电工钢板在1.9T的高磁通密度下，磁芯损耗和磁致伸缩的优异性优异，包括精炼磁畴，其包括激光照射部分，该激光照射部分熔化并重新固化形成固化层，其中， 凝固层为4μm以下。 晶粒取向电工钢板还可以包括表面粗糙度Rz小的横截面的宽度为200μm以下且深度为10μm以下的凹部的激光照射部 进一步改善。
-
2.发明申请Low core loss grain-oriented electrical steel sheet and method for producing the same 有权低磁芯损耗晶粒取向电工钢板及其制造方法公开(公告)号：US20090145526A1
公开(公告)日：2009-06-11
申请号：US11919580
申请日：2006-04-26
CPC分类号： H01F1/16 , H01F1/14775
摘要： An object of the present invention is to provide a grain-oriented electrical steel sheet with low core loss and low magnetostriction and a method for producing the same. The grain-oriented electrical steel sheet is excellent in reduced core loss and magnetostriction while under a high flux density of 1.9 T, comprises a refined magnetic domain comprising a laser irradiated portion which has melted and resolidified to form a solidified layer, wherein the thickness of the solidified layer is 4 μm or less. The grain-oriented electrical steel sheet may further comprise a laser irradiated portion where a surface roughness Rz is small and a cross section viewed from a transverse direction has a concave portion having a width of 200 μm or less and a depth of 10 μm or less for further improvement.
摘要翻译： 本发明的目的是提供一种低磁芯损耗和低磁致伸缩性的方向性电磁钢板及其制造方法。 晶粒取向电工钢板在1.9T的高磁通密度下，磁芯损耗和磁致伸缩的优异性优异，包括精炼磁畴，其包括激光照射部分，该激光照射部分熔化并重新固化形成固化层，其中， 凝固层为4μm以下。 晶粒取向电工钢板还可以包括表面粗糙度Rz小的横截面的宽度为200μm以下且深度为10μm以下的凹部的激光照射部 进一步改善。
-
公开(公告)号：US20130017408A1
公开(公告)日：2013-01-17
申请号：US13637587
申请日：2011-03-29
申请人： Tatsuhiko Sakai , Hideyuki Hamamura
发明人： Tatsuhiko Sakai , Hideyuki Hamamura
CPC分类号： C21D8/1294 , B23K26/0006 , B23K26/354 , B23K26/364 , B23K26/40 , B23K2101/35 , B23K2103/50 , C21D2201/05 , Y10T428/12389
摘要： In a method for producing a grain-oriented electrical steel sheet, grooves each having a given length and extending in a direction including a direction perpendicular to a transportation direction of the grain-oriented electrical steel sheet are formed at given intervals in the transportation direction by irradiating the surface of the grain-oriented electrical steel sheet with a laser beam while scanning the surface of the grain-oriented electrical steel sheet with the laser beam. Further, in the method for manufacturing a grain-oriented electrical steel sheet, the laser beam is a continuous-wave laser beam having a laser wavelength λ of 1.0 μm to 2.1 μm, power density Pd [W/mm2] which is obtained by dividing laser beam intensity P by a focused beam area S is 5×105 W/mm2 or more, and the power density Pd [W/mm2] and scanning speed V [mm/s] of a focused spot of the laser beam on the surface of the grain-oriented electrical steel sheet satisfy a relationship of 0.005×Pd+3000≦V≦0.005×Pd+40000.
摘要翻译： 在晶粒取向电工钢板的制造方法中，沿着与方向性电磁钢板的输送方向垂直的方向具有给定长度并延伸的槽沿输送方向以给定的间隔形成， 用激光束对晶粒取向电工钢板的表面进行照射，同时用激光束扫描方向性电磁钢板的表面。 此外，在晶粒取向电工钢板的制造方法中，激光束是激光波长λ为1.0〜2.1μm的连续波激光，功率密度Pd [W / mm2] 聚焦光束区域S的激光束强度P为5×105W / mm 2以上，激光束的聚焦点的表面的功率密度Pd [W / mm2]和扫描速度V [mm / s] 的晶粒取向电工钢板满足0.005×Pd + 3000＆amp; NlE; V＆nlE; 0.005×Pd + 40000的关系。
-
4.发明授权公开(公告)号：US07883586B2
公开(公告)日：2011-02-08
申请号：US12084352
申请日：2006-08-29
申请人： Tatsuhiko Sakai , Hideyuki Hamamura
发明人： Tatsuhiko Sakai , Hideyuki Hamamura
CPC分类号： C21D8/12 , C21D8/1294 , C21D9/46 , C21D10/005 , H01F1/16
摘要： Technology scanning and irradiating grain-oriented electrical steel sheet moving in a rolling direction at a speed Vl with an elliptical spot formed by a laser beam in the width direction at Vc to improve the core loss of the grain-oriented electrical steel sheet, which adjusts the angle θs formed by the scan direction of the elliptical beam and the long axis of the ellipse based on the equation θs=tan−1(Vl/Vc) and which constructs the system for adjusting the θs by an optical system for laser irradiation comprised of a cylindrical lens telescope, scan mirror, and fθ lens arranged in that order, a system for changing the angle of the cylindrical lens telescope with respect to the scan direction of the scan mirror, and a system for changing the distance between lenses.
摘要翻译： 技术扫描和照射晶粒取向电工钢板以速度V1在轧制方向上以激光束在宽度方向上以Vc形成的椭圆点移动，以改善晶粒取向电工钢板的铁损，其调整 基于等式＆s; s = tan-1（Vl / Vc），通过椭圆光束的扫描方向和椭圆的长轴形成的角度和角度，并且构造用于通过a 用于激光照射的光学系统由圆柱形透镜望远镜，扫描镜和镜片组成; 以及用于改变柱面透镜望远镜相对于扫描镜的扫描方向的角度的系统，以及用于改变透镜之间的距离的系统。
-
5.发明授权公开(公告)号：US07045025B2
公开(公告)日：2006-05-16
申请号：US10448754
申请日：2003-05-30
申请人： Hideyuki Hamamura , Tatsuhiko Sakai , Naoya Hamada
发明人： Hideyuki Hamamura , Tatsuhiko Sakai , Naoya Hamada
IPC分类号： H01F1/153
CPC分类号： C21D8/1294
摘要： A low core loss grain-oriented electrical steel sheet that does not have a significant deterioration in a magnetic flux density and a decrease of a space factor, and which may withstand stress-relieving annealing is provided. Melted and re-solidified layers can be formed on either or both of the surfaces of the grain-oriented electrical steel sheet that extend in a direction that is perpendicular to the rolling direction (e.g., in the direction of the width thereof), at a cyclic interval of not less than approximately 2 mm to less than approximately 5 mm in the rolling direction. The melted and re-solidified layers may be provided on each surface of the grain-oriented electrical steel sheet, and can have an aspect ratio that is a ratio of the depth to the width of the melted and re-solidified layer of not less than approximately 0.20 and a depth of not less than approximately 15 μm. In addition, the melted and re-solidified layers can be formed by using a laser.
摘要翻译： 本发明提供一种低磁损耗方向性电磁钢板，它不会使磁通密度明显变差并且空间系数降低，并且可以承受应力消除退火。 可以在方向性电磁钢板的沿着与轧制方向垂直的方向（例如，沿其宽度方向）延伸的方向的一个或两个表面上形成熔融和再固化的层， 循环间隔在轧制方向上不小于约2mm至小于约5mm。 可以在晶粒取向电工钢板的各表面上设置熔融再固化层，其长宽比为熔融再结合层的深度与宽度之比不小于 约0.20，深度不小于约15μm。 此外，可以通过使用激光形成熔融和再固化的层。
-
公开(公告)号：US09139886B2
公开(公告)日：2015-09-22
申请号：US13637587
申请日：2011-03-29
申请人： Tatsuhiko Sakai , Hideyuki Hamamura
发明人： Tatsuhiko Sakai , Hideyuki Hamamura
CPC分类号： C21D8/1294 , B23K26/0006 , B23K26/354 , B23K26/364 , B23K26/40 , B23K2101/35 , B23K2103/50 , C21D2201/05 , Y10T428/12389
摘要： In a method for producing a grain-oriented electrical steel sheet, grooves each having a given length and extending in a direction including a direction perpendicular to a transportation direction of the grain-oriented electrical steel sheet are formed at given intervals in the transportation direction by irradiating the surface of the grain-oriented electrical steel sheet with a laser beam while scanning the surface of the grain-oriented electrical steel sheet with the laser beam. Further, in the method for manufacturing a grain-oriented electrical steel sheet, the laser beam is a continuous-wave laser beam having a laser wavelength λ of 1.0 μm to 2.1 μm, power density Pd [W/mm2] which is obtained by dividing laser beam intensity P by a focused beam area S is 5×105 W/mm2 or more, and the power density Pd [W/mm2] and scanning speed V [mm/s] of a focused spot of the laser beam on the surface of the grain-oriented electrical steel sheet satisfy a relationship of 0.005×Pd+3000≦V≦0.005×Pd+40000.
摘要翻译： 在晶粒取向电工钢板的制造方法中，沿着与方向性电磁钢板的输送方向垂直的方向具有给定长度并延伸的槽沿输送方向以给定的间隔形成， 用激光束对晶粒取向电工钢板的表面进行照射，同时用激光束扫描方向性电磁钢板的表面。 此外，在晶粒取向电工钢板的制造方法中，激光束是激光波长λ为1.0〜2.1μm的连续波激光，功率密度Pd [W / mm2] 聚焦光束区域S的激光束强度P为5×105W / mm 2以上，激光束的聚焦点的表面的功率密度Pd [W / mm2]和扫描速度V [mm / s] 的晶粒取向电工钢板满足0.005×Pd + 3000＆amp; NlE; V＆nlE; 0.005×Pd + 40000的关系。
-
公开(公告)号：US20130139932A1
公开(公告)日：2013-06-06
申请号：US13816773
申请日：2011-09-09
申请人： Tatsuhiko Sakai , Hideyuki Hamamura
发明人： Tatsuhiko Sakai , Hideyuki Hamamura
CPC分类号： H01F1/01 , C21D8/1266 , C21D8/1272 , C21D8/1294 , C21D2201/05 , H01F1/18 , H01F41/0206
摘要： This method of manufacturing a grain-oriented electrical steel sheet includes, between a cold rolling process and a winding process, a groove formation process of irradiating the surface of a silicon steel sheet with a laser beam multiple times at predetermined intervals in a sheet passing direction, over an area from one end edge to the other end edge, in a sheet width direction of the silicon steel sheet, thereby forming a groove along a locus of the laser beam.
摘要翻译： 这种制造方向性电磁钢板的方法包括在冷轧工序和卷绕工序之间，以规定的间隔以片材通过方向以激光多次照射硅钢板表面的槽形成工序 在从一端缘到另一端缘的区域中，在硅钢板的片材宽度方向上，由此沿着激光束的轨迹形成凹槽。
-
公开(公告)号：US20090114316A1
公开(公告)日：2009-05-07
申请号：US12225963
申请日：2007-03-28
申请人： Tatsuhiko Sakai , Hideyuki Hamamura
发明人： Tatsuhiko Sakai , Hideyuki Hamamura
CPC分类号： C21D8/1294 , B23K26/0626 , B23K26/082 , B23K26/0821 , B23K26/53 , B23K2101/16 , B23K2101/18 , B23K2103/04 , C21D8/12
摘要： The present invention provides a method of production of grain-oriented electrical steel sheet greatly reducing the Watt loss of the grain-oriented electrical steel sheet and making the magnetostriction as small as possible, that is, a method of production of grain-oriented electrical steel sheet with small magnetostriction by improving the magnetic properties by irradiation by a finely focused laser beam comprising using a power modulated laser controlled in maximum power density to 1×102 to 1×104 W/mm2 to optimize the amount of strain given by laser irradiation in both the sheet width direction and rolling direction and, in particular, to make the modulation duty 70% to less than 100%.
摘要翻译： 本发明提供了一种大幅度降低方向性电磁钢板的瓦特损耗并使磁致伸缩尽可能小的方向性电磁钢板的制造方法，即制造方向性电磁钢的方法 通过用精细聚焦的激光束照射来提高磁特性的片材，其包括使用以最大功率密度控制的功率调制激光为1×102-1×104W / mm 2，以优化激光照射在片材宽度中施加的应变量 方向和滚动方向，特别是使调制度为70％至小于100％。
-
9.发明授权公开(公告)号：US08657968B2
公开(公告)日：2014-02-25
申请号：US13816773
申请日：2011-09-09
申请人： Tatsuhiko Sakai , Hideyuki Hamamura
发明人： Tatsuhiko Sakai , Hideyuki Hamamura
CPC分类号： H01F1/01 , C21D8/1266 , C21D8/1272 , C21D8/1294 , C21D2201/05 , H01F1/18 , H01F41/0206
摘要： This method of manufacturing a grain-oriented electrical steel sheet includes, between a cold rolling process and a winding process, a groove formation process of irradiating the surface of a silicon steel sheet with a laser beam multiple times at predetermined intervals in a sheet passing direction, over an area from one end edge to the other end edge, in a sheet width direction of the silicon steel sheet, thereby forming a groove along a locus of the laser beam.
摘要翻译： 这种制造方向性电磁钢板的方法包括在冷轧工序和卷绕工序之间，以规定的间隔以片材通过方向以激光多次照射硅钢板表面的槽形成工序 在一个端部边缘到另一个端部边缘的区域中，在硅钢板的片材宽度方向上，从而沿着激光束的轨迹形成凹槽。
-
10.发明申请公开(公告)号：US20100243629A1
公开(公告)日：2010-09-30
申请号：US12744583
申请日：2008-12-11
IPC分类号： B23K26/00
CPC分类号： H01F1/16 , C21D8/1294 , Y10T428/1234 , Y10T428/2457
摘要： There is provided a method for manufacturing a grain-oriented electromagnetic steel sheet whose iron losses are reduced by laser beam irradiation, capable of improving the iron losses in both the L-direction and the C-direction while easily ensuring high productivity. The method for manufacturing a grain-oriented electromagnetic steel sheet reduces iron losses by scanning and irradiating a grain-oriented electromagnetic steel sheet with a continuous-wave laser beam condensed into a circular or elliptical shape at constant intervals in a direction substantially perpendicular to a rolling direction of the grain-oriented electromagnetic steel sheet, wherein when an average irradiation energy density Ua is defined as Ua=P/(Vc×PL) (mJ/mm2), where P (W) is average power of the laser beam, Vc (m/s) is a beam scanning velocity, and PL (mm) is an irradiation interval in a rolling direction, PL and Ua are in the following ranges: 1.0 mm≦PL≦3.0 mm, 0.8 mJ/mm2≦Ua≦2.0 mJ/mm2.
摘要翻译： 提供一种制造通过激光照射减少铁损的方向性电磁钢板的方法，其能够提高L方向和C方向的铁损，同时容易确保高生产率。 晶粒取向电磁钢板的制造方法通过扫描和照射具有连续波激光束的方向性电磁钢板来减少铁损，所述连续波激光束以基本上垂直于轧制的方向以恒定的间隔被缩聚为圆形或椭圆形 晶粒取向电磁钢板的方向为平均照射能量密度Ua定义为Ua = P /（Vc×PL）（mJ / mm2），其中P（W）为激光束的平均功率，Vc （m / s）是光束扫描速度，PL（mm）是轧制方向的照射间隔，PL和Ua在以下范围内：1.0mm＆lt; llE; PL＆nlE; 3.0mm，0.8mJ / mm2＆amp; NlE; Ua＆ mJ / mm2。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.024 秒)
