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1.发明授权公开(公告)号：US08277574B2
公开(公告)日：2012-10-02
申请号：US12744583
申请日：2008-12-11
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。
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2.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。
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3.发明授权公开(公告)号：US07456724B2
公开(公告)日：2008-11-25
申请号：US10808925
申请日：2004-03-25
申请人： Hisashi Mogi , Masahiro Fujikura , Shuichi Yamazaki , Masato Mizokami , Masao Yabumoto , Osamu Akisue
发明人： Hisashi Mogi , Masahiro Fujikura , Shuichi Yamazaki , Masato Mizokami , Masao Yabumoto , Osamu Akisue
IPC分类号： H01F27/24
CPC分类号： H01F27/33
摘要： The present invention provides an electrical steel sheet core for a low-noise transformer capable of effectively lowering noise by suppressing vibration perpendicular to the surfaces of the steel sheets and reducing vibration, and relates to an electrical steel sheet for a low-noise transformer characterized by randomly inserting viscoelastic layers with both viscosity and elasticity into the gaps of the steel sheet lamination layers, and a low-noise transformer formed by using said electrical steel sheet.
摘要翻译： 本发明提供一种用于低噪声变压器的电磁钢片芯，其能够通过抑制垂直于钢板表面的振动并减少振动而有效地降低噪声，并且涉及一种用于低噪声变压器的电工钢板，其特征在于， 将粘性和弹性粘弹性层随机插入到钢板层压层的间隙中，以及通过使用所述电工钢板形成的低噪声变压器。
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公开(公告)号：US5026439A
公开(公告)日：1991-06-25
申请号：US596857
申请日：1990-10-12
申请人： Masaki Tanaka , Norito Abe , Masao Yabumoto , Yoshiyuki Ushigami , Tadao Nozawa
发明人： Masaki Tanaka , Norito Abe , Masao Yabumoto , Yoshiyuki Ushigami , Tadao Nozawa
CPC分类号： C21D8/1294 , C21D9/52
摘要： The present invention provides a wound core having a low core loss and not susceptible to a disappearance of the core loss lowering effect due to a magnetic domain refining even when stress-relief annealing is conducted after fabrication of a steel strip into a wound core, through a process which comprises, fabricating a very thin silicon steel strip comprising by 6.5% weight or less of silicon with the balance consisting essentially of iron and having a sheet thickness of 100 .mu.m or less and a magnetic flux density (B.sub.8 value) of 1.80T or more into a wound core, subjecting the wound core to stress-relief annealing, unwinding the very thin silicon steel strip from the core, introducing into the very thin silicon steel strip a linear or dotted local strain in a direction at an angle of 45.degree. to 90.degree. to the rolling direction of the thin strip, and rewinding the thin strip onto the core.
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