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1. 发明授权

US08236110B2 Method of producing grain-oriented electrical steel sheet 有权
标题翻译：生产晶粒取向电工钢板的方法
公开(公告)号：US08236110B2
公开(公告)日：2012-08-07
申请号：US12450996
申请日：2008-04-22
申请人： Takao Mukai , Shinya Hayashi , Atsushi Tanaka , Hiroyuki Mimura , Hisataka Uto
发明人： Takao Mukai , Shinya Hayashi , Atsushi Tanaka , Hiroyuki Mimura , Hisataka Uto
IPC分类号： H01F1/147 , H01F1/16
CPC分类号： C21D8/12 , B21B1/22 , B21B1/36 , B21B13/147 , B21B27/021 , C21D8/1233 , C22C38/02 , C22C38/04 , C22C38/06 , H01F1/16 , H01F41/024
摘要： The invention produces a grain-oriented electrical steel sheet having a primary recrystallization structure in which Goss-oriented crystal grains and crystal grains having a coincidence orientation relationship to the Goss orientation are aligned in the rolling direction. It is characterized heating a slab containing, in mass %, C: 0.025 to 0.10%, Si: 2.5 to 4.5%, Mn: 0.03 to 0.55%, and Al: 0.007 to 0.040% to 1,100 to 1,450° C. or greater; hot rolling the slab to obtain a hot-rolled sheet; annealing the hot-rolled sheet; cold rolling the annealed sheet multiple times with a split-housing reversible cluster rolling mill; and subjecting the cold-rolled sheet to primary recrystallization annealing followed by secondary recrystallization annealing, in which method: (a) a first cold rolling or first and second cold rollings are performed using a small-diameter work roll of 55 mm to less than 105 mm diameter; (b) a second or third cold rolling to a penultimate cold rolling are performed using a large-diameter work roll of 105 mm to less than 150 mm diameter; and (c) a final cold rolling is conducted using a small work roll of a diameter smaller than the diameter of the large-diameter work roll.
摘要翻译：本发明产生一种具有一次再结晶结构的晶粒取向电工钢板，其中，与Goss取向一致取向的Goss取向晶粒和晶粒在轧制方向上排列。其特征在于，以质量％计含有C：0.025〜0.10％，Si：2.5〜4.5％，Mn：0.03〜0.55％，Al：0.007〜0.040％〜1,100〜1450℃以上的板坯。热轧板坯以获得热轧板; 退火热轧板; 用分体式壳体可逆集团轧机将退火板多次冷轧; 并对冷轧板进行一次再结晶退火，然后进行二次再结晶退火，其中：（a）使用55mm至小于105的小直径工作辊进行第一次冷轧或第一次和第二次冷轧 mm直径; （b）使用105mm至小于150mm直径的大直径工作辊进行倒数第二次冷轧的第二或第三次冷轧; 和（c）使用直径小于大直径工作辊直径的小型工作辊进行最终冷轧。

2. 发明申请

US20100084058A1 METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL 有权
标题翻译：生产面向电导钢的方法
公开(公告)号：US20100084058A1
公开(公告)日：2010-04-08
申请号：US12450996
申请日：2008-04-22
申请人： Takao Mukai , Shinya Hayashi , Atsushi Tanaka , Hiroyuki Mimura , Hisataka Uto
发明人： Takao Mukai , Shinya Hayashi , Atsushi Tanaka , Hiroyuki Mimura , Hisataka Uto
IPC分类号： C21D8/02 , C21D6/02
CPC分类号： C21D8/12 , B21B1/22 , B21B1/36 , B21B13/147 , B21B27/021 , C21D8/1233 , C22C38/02 , C22C38/04 , C22C38/06 , H01F1/16 , H01F41/024
摘要： The invention produces a grain-oriented electrical steel sheet having a primary recrystallization structure in which Goss-oriented crystal grains and crystal grains having a coincidence orientation relationship to the Goss orientation are aligned in the rolling direction. It is characterized heating a slab containing, in mass %, C: 0.025 to 0.10%, Si: 2.5 to 4.5%, Mn: 0.03 to 0.55%, and Al: 0.007 to 0.040% to 1,100 to 1,450° C. or greater; hot rolling the slab to obtain a hot-rolled sheet; annealing the hot-rolled sheet; cold rolling the annealed sheet multiple times with a split-housing reversible cluster rolling mill; and subjecting the cold-rolled sheet to primary recrystallization annealing followed by secondary recrystallization annealing, in which method: (a) a first cold rolling or first and second cold rollings are performed using a small-diameter work roll of 55 mm to less than 105 mm diameter; (b) a second or third cold rolling to a penultimate cold rolling are performed using a large-diameter work roll of 105 mm to less than 150 mm diameter; and (c) a final cold rolling is conducted using a small work roll of a diameter smaller than the diameter of the large-diameter work roll.
摘要翻译：本发明产生一种具有一次再结晶结构的晶粒取向电工钢板，其中，与Goss取向一致取向的Goss取向晶粒和晶粒在轧制方向上排列。其特征在于，以质量％计含有C：0.025〜0.10％，Si：2.5〜4.5％，Mn：0.03〜0.55％，Al：0.007〜0.040％〜1,100〜1450℃以上的板坯。热轧板坯以获得热轧板; 退火热轧板; 用分体式壳体可逆集团轧机将退火板多次冷轧; 并对冷轧板进行一次再结晶退火，然后进行二次再结晶退火，其中：（a）使用55mm至小于105的小直径工作辊进行第一次冷轧或第一次和第二次冷轧 mm直径; （b）使用105mm至小于150mm直径的大直径工作辊进行倒数第二次冷轧的第二或第三次冷轧; 和（c）使用直径小于大直径工作辊直径的小型工作辊进行最终冷轧。

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