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1. 发明授权

US5318639A Method of manufacturing grain oriented silicon steel sheets 失效
标题翻译：晶粒取向硅钢板的制造方法
公开(公告)号：US5318639A
公开(公告)日：1994-06-07
申请号：US950465
申请日：1992-09-24
申请人： Yasuyuki Hayakawa , Ujihiro Nishiike , Bunjiro Fukuda , Masataka Yamada , Tetsuya Oishi , Shigeru Yoshida , Yoh Shimizu
发明人： Yasuyuki Hayakawa , Ujihiro Nishiike , Bunjiro Fukuda , Masataka Yamada , Tetsuya Oishi , Shigeru Yoshida , Yoh Shimizu
IPC分类号： C21D1/76 , C21D8/12 , C21D9/46
CPC分类号： C21D8/1283 , C21D1/76 , C21D8/1272
摘要： Method of manufacturing a grain oriented silicon steel sheet. An annealing separating agent mainly composed of MgO is coated on a surface of a decarburized silicon steel sheet. The silicon steel sheet is subjected to secondary recrystallization annealing and then purification annealing. The annealing separating agent contains Ti oxide or a Ti compound which can be oxidized by heating. The purification annealing is conducted in steps. A non-oxidizing atmosphere having a high nitrogen concentration is present in one step. A hydrogen atmosphere having a low nitrogen concentration is present in a subsequent step.
摘要翻译：晶粒取向硅钢板的制造方法。主要由MgO组成的退火分离剂涂覆在脱碳硅钢板的表面上。对硅钢片进行二次再结晶退火，然后进行纯化退火。退火分离剂含有可通过加热氧化的Ti氧化物或Ti化合物。纯化退火进行步骤。在一个步骤中存在具有高氮浓度的非氧化性气氛。在随后的步骤中存在具有低氮浓度的氢气氛。

2. 发明授权

US5342454A Method of producing grain oriented silicon steel sheet having low iron loss 失效
标题翻译：低铁损晶粒取向硅钢板的制造方法
公开(公告)号：US5342454A
公开(公告)日：1994-08-30
申请号：US931682
申请日：1992-08-18
申请人： Yasuyuki Hayakawa , Ujihiro Nishiike , Bunjiro Fukuda , Masataka Yamada , Yoshiaki Iida , Fumihiko Takeuchi , Michiro Komatsubara
发明人： Yasuyuki Hayakawa , Ujihiro Nishiike , Bunjiro Fukuda , Masataka Yamada , Yoshiaki Iida , Fumihiko Takeuchi , Michiro Komatsubara
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16 , H01F1/04
CPC分类号： C21D8/1233 , C21D8/1227 , C21D8/1277
摘要： A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss. A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S, or Se, or both, is hot rolled. After the hot rolled steel sheet is annealed when necessary, the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing. In the cold rolling step, an oxide layer exists on the surface of the steel sheet. Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 .mu.m is generated. Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 .mu.m is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.
摘要翻译：一种生产晶粒取向硅钢片的方法适用于降低铁损。将含有约2.0〜4.0重量％的Si和抑制剂形成量的S或Se或两者的硅钢板热轧。在必要时对热轧钢板进行退火后，通过进行一次或多次冷轧，中间退火，将钢板冷轧成具有最终厚度的冷轧钢板，然后将冷轧钢板用主要包含MgO的退火分离剂，二次再结晶退火和纯化退火对钢板表面进行脱碳，涂覆。在冷轧工序中，在钢板表面存在氧化层。具体而言，在冷轧工序中，仅在所使用的轧机的入口处供给轧制油，生成厚度为0.05〜5μm左右的氧化物层。或者，除去在热轧或中间退火之后在钢板表面产生的氧化物层结构的外部氧化物层，并且在表面上保持约0.05〜5μm的厚度的内部氧化物层，然后将所得的钢板进行冷轧。

3. 发明授权

US5413639A Method of manufacturing low-core-loss grain oriented electrical steel sheet 失效
标题翻译：低核损耗晶粒取向电工钢板的制造方法
公开(公告)号：US5413639A
公开(公告)日：1995-05-09
申请号：US6143
申请日：1993-01-19
申请人： Keiji Sato , Bunjiro Fukuda
发明人： Keiji Sato , Bunjiro Fukuda
IPC分类号： C21D8/12 , C23F1/02
CPC分类号： C21D8/1294 , C23F1/02
摘要： A method of manufacturing a low-core-loss oriented electrical steel sheet. Thread-like grooves are formed in a cold-rolled grain oriented electrical steel sheet having a final thickness of about 0.27 mm or less in a direction within the range of about 30.degree. from the direction perpendicular to the rolling direction. The grooves and sheet satisfy the equationlog d.gtoreq.0.6 Ra+0.4where d is the groove depth (.mu.m), and Ra is the mean surface roughness of the steel sheet cold-rolled to final gauge. The steel sheet is thereafter decarburization annealed and final texture annealed.
摘要翻译：一种低磁损耗取向电工钢板的制造方法。在垂直于轧制方向的方向约30°的范围内，在最终厚度为约0.27mm或更小的冷轧晶粒取向电工钢板上形成螺纹状的槽。槽和片满足等式log d> / = 0.6 Ra + 0.4其中d是槽深度（μm），Ra是冷轧到最终规格的钢板的平均表面粗糙度。然后对钢板进行脱碳退火并进行最后的织构退火。

4. 发明授权

US5393355A Low-iron loss grain oriented electromagnetic steel sheet and method of producing the same 失效
标题翻译：低铁损晶粒取向电磁钢板及其制造方法
公开(公告)号：US5393355A
公开(公告)日：1995-02-28
申请号：US964367
申请日：1992-10-21
申请人： Koh Nakano , Keiji Sato , Bunjiro Fukuda
发明人： Koh Nakano , Keiji Sato , Bunjiro Fukuda
IPC分类号： C21D8/12 , C25F3/14 , H01F1/16 , H01F1/18 , H01F41/02 , H01F1/04
CPC分类号： C21D8/1294 , H01F1/18 , C21D8/1277
摘要： A low-iron loss grain oriented electromagnetic steel sheet subjected to final finishing annealing has a plurality of linear grooves formed on surface of the steel sheet in a direction across the rolling direction, so as to improve the magnetic characteristics of the steel sheet. The linear grooves have a substantially rectangular cross-sectional shape in which the angle of a groove side wall to the direction of the thickness of the sheet is about 60.degree. or less. Projections are present at a bottom portion of the groove, and the depth at the top of the projection at the groove bottom is at least about 1/2 of the maximum groove depth. The steel sheet maintains a low iron loss even after stress relief annealing. The present invention provides a method of stably producing the steel sheet.
摘要翻译：进行最终精加工退火的低铁损晶粒取向电磁钢板在轧制方向上沿钢板表面形成多个直线槽，以提高钢板的磁特性。线性槽具有基本上矩形的横截面形状，其中槽侧壁与板的厚度方向的角度为约60度以下。突起存在于凹槽的底部，并且在凹槽底部的突起的顶部处的深度至少为最大凹槽深度的大约1/2。钢板即使在消除应力退火后也保持低的铁损。本发明提供一种稳定地制造钢板的方法。

5. 发明授权

US4915749A Method of reducing iron loss of grain oriented silicon steel sheet 失效
标题翻译：降低晶粒取向硅钢片铁损的方法
公开(公告)号：US4915749A
公开(公告)日：1990-04-10
申请号：US180250
申请日：1988-04-11
申请人： Bunjiro Fukuda , Keiji Sato , Eiji Hina
发明人： Bunjiro Fukuda , Keiji Sato , Eiji Hina
IPC分类号： C21D8/12 , C21D9/46
CPC分类号： C21D8/1294
摘要： The iron loss is reduced by irradiating plasma flame to the surface of the grain oriented silicon steel sheet, wherein the irradiation interval (l) of plasma flame is controlled so as to satisfy the following equation (1):22-2.5D.ltoreq.l.ltoreq.36-2.5D (1)(D is an average secondary recrystallized grain size of the steel sheet).

6. 发明授权

US4846448A Apparatus for improvement of iron loss of electromagnetic steel sheet or amorphous material 失效
标题翻译：用于改善电磁钢板或无定形材料的铁损的装置
公开(公告)号：US4846448A
公开(公告)日：1989-07-11
申请号：US209845
申请日：1988-06-22
申请人： Bunjiro Fukuda , Toshitomo Sugiyama , Keiji Sato , Atsuhito Honda
发明人： Bunjiro Fukuda , Toshitomo Sugiyama , Keiji Sato , Atsuhito Honda
IPC分类号： C21D1/09 , C21D8/12 , C21D9/56 , H01F1/16
CPC分类号： H01F1/16 , C21D1/09 , C21D8/1294 , C21D9/56
摘要： A process and an apparatus for improving iron loss of electromagnetic steel sheet or amorphous material are disclosed. In this case, the steel sheet or amorphous material is subjected to an irradiation of plasma flame under specified conditions.

7. 发明授权

US4772338A Process and apparatus for improvement of iron loss of electromagnetic steel sheet or amorphous material 失效
标题翻译：用于改善电磁钢板或无定形材料的铁损的方法和装置
公开(公告)号：US4772338A
公开(公告)日：1988-09-20
申请号：US921523
申请日：1986-10-21
申请人： Bunjiro Fukuda , Toshitomo Sugiyama , Keiji Sato , Atsuhito Honda
发明人： Bunjiro Fukuda , Toshitomo Sugiyama , Keiji Sato , Atsuhito Honda
IPC分类号： C21D1/09 , C21D8/12 , C21D9/56 , H01F1/16 , H01F1/04
CPC分类号： H01F1/16 , C21D1/09 , C21D8/1294 , C21D9/56
摘要： A process and an apparatus for improving iron loss of electromagnetic steel sheet or amorphous material are disclosed. In this case, the steel sheet or amorphous material is subjected to an irradiation of plasma flame under specified conditions.
摘要翻译：公开了一种用于改善电磁钢板或非晶材料的铁损的方法和装置。在这种情况下，钢板或非晶材料在规定条件下进行等离子体火焰的照射。

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