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1.发明授权
公开(公告)号：US5074931A
公开(公告)日：1991-12-24
申请号：US550856
申请日：1990-07-10
CPC分类号： C21D8/1222 , C21D8/1205
摘要： A continuously cast slab of grain-oriented electrical steel is heated, subjected to heavy-reduction edge rolling at such amount not less than 60 mm as is required for matching with the width of a hot-rolled coil to be produced therefrom, whereafter the dogbones formed in the slab by the heavy-reduction edge rolling are eliminated by horizontal rolling to obtain a flat slab. The flat slab is then heated to a high temperature and hot rolled. Optionally, the edges of the slab can be heated prior to the finish rolling step of the hot rolling process. The method enables production of grain-oriented electrical sheet with high productivity.
摘要翻译： 对晶粒取向电工钢的连续铸造板进行加热，按照与要制造的热轧板卷的宽度相匹配的要求，进行不小于60mm的大幅度轧制轧制， 通过水平轧制消除通过重轧边缘轧制在板坯中形成的平板坯。 然后将平板坯加热至高温并热轧。 可选地，可以在热轧过程的精轧步骤之前对板坯的边缘进行加热。 该方法能够以高生产率生产晶粒取向电工片。
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2.发明授权
公开(公告)号：US5614034A
公开(公告)日：1997-03-25
申请号：US731111
申请日：1991-07-15
申请人： Yozo Suga , Hotaka Honma , Yoshiyuki Ushigami , Syuji Kitahara
发明人： Yozo Suga , Hotaka Honma , Yoshiyuki Ushigami , Syuji Kitahara
CPC分类号： C21D8/1227 , C22C38/02
摘要： The present invention provides a thin sheet product having a combination of excellent magnetic properties inherent in the steel having a silicon content of 6.5% or near 6.5% with a further lowered iron loss property, particularly in a high frequency region, through the production of a magnetic thin steel sheet having a thickness of 0.23 mm or less by cold-rolling a steel sheet comprising by weight not more than that 0.006% of carbon, 5.0 to 7.1% of silicon, 0.07 to 0.30% of manganese, not more than 0.007% of sulfur, 0.006 to 0.038% of acid soluble aluminum and 8 to 30 ppm of total nitrogen with the balance consisting of iron and unavoidable impurities at a sheet temperature in the range of from 120.degree. to 350.degree. C. optionally after annealing the sheet at a temperature in the range of from 750.degree. to 1020.degree. C., and annealing the cold-rolled sheet at a temperature in the range of from 800.degree. to 1020.degree. C. for recrystallization and grain growth, to thereby prepare a magnetic steel sheet having a small thickness of 0.23 mm or less.
摘要翻译： 本发明提供了一种薄片制品，其具有硅含量为6.5％或接近6.5％的钢中固有的优良磁性能，并且特别是在高频区域中铁损特性进一步降低，通过生产 通过冷轧不超过0.006％的碳，5.0〜7.1％的硅，0.07〜0.30％的锰，不超过0.007％的钢板将厚度为0.23mm以下的磁性薄钢板， 的硫，0.006〜0.038％的酸溶性铝和8〜30ppm的总氮，余量由铁和不可避免的杂质组成，在片温度为120〜350℃的范围内。 温度在750〜1020℃的范围内，在800〜1020℃的温度下对冷轧板进行退火，进行再结晶和晶粒生长，制作磁钢sh eet具有0.23mm或更小的小厚度。
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