公开(公告)号：US4797167A

公开(公告)日：1989-01-10

申请号：US881834

申请日：1986-07-02

申请人： Hisanobu Nakayama ,  Shouzaburo Nakashima ,  Yoshiaki Shimoyama ,  Yasukazu Mori

发明人： Hisanobu Nakayama ,  Shouzaburo Nakashima ,  Yoshiaki Shimoyama ,  Yasukazu Mori

IPC分类号： C21D8/12

CPC分类号： C21D8/1261

摘要： Method for the production of a single oriented silicon steel sheet having excellent magnetic property which comprises providing a silicon steel slab containing 0.010.about.0.10% C, 2.5.about.4.5% Si, 0.02.about.0.15% Mn, and a total of 0.008.about.0.080% of one or two of S and Se, hot rolling the silicon steel slabing to sheet, and subjecting the hot rolled sheet to a two-step annealing procedure wherein the first half is at a temperature of 1000.degree..about.1200.degree. C. and the latter half at 750.degree..about.980.degree. C., and to at least two cold rolling steps.

公开(公告)号：US4875947A

公开(公告)日：1989-10-24

申请号：US239191

申请日：1988-08-31

申请人： Hisanobu Nakayama ,  Osamu Tanaka ,  Hiromichi Yasumoto ,  Seiichi Senoo ,  Youichi Zaizen ,  Kouji Yamasaki

发明人： Hisanobu Nakayama ,  Osamu Tanaka ,  Hiromichi Yasumoto ,  Seiichi Senoo ,  Youichi Zaizen ,  Kouji Yamasaki

IPC分类号： C21D1/70 ,  C21D3/04 ,  C21D8/12

CPC分类号： C21D1/70 ,  C21D3/04 ,  C21D8/1283 ,  C21D8/1255

摘要： A method for producing grain-oriented electrical steel sheet having metallic luster and excellent punching property comprises the steps of decarbonization annealing a grain-oriented electrical steel sheet which has been cold rolled to a final thickness, coating the decarbonization-annealed sheet with an annealing separator consisting of magnesium blended with one or more salts of alkali metal or alkaline-earth metal, and finish annealing the coated sheet.

公开(公告)号：US4302257A

公开(公告)日：1981-11-24

申请号：US166112

申请日：1980-07-07

申请人： Fumio Matsumoto ,  Jirou Harase ,  Kunihide Takashima ,  Hisanobu Nakayama

发明人： Fumio Matsumoto ,  Jirou Harase ,  Kunihide Takashima ,  Hisanobu Nakayama

IPC分类号： B21B1/26 ,  C21D8/12 ,  H01F1/16 ,  H01F1/04

CPC分类号： C21D8/1222

摘要： Process for producing a grain-oriented silicon steel sheet from silicon steel slabs, particularly from continuously cast steel slabs, comprising at least one recrystallization rolling at high reduction rate in a temperature range from 1190.degree. C. to 960.degree. C. in the hot rolling step. The process of the present invention is very effective in preventing the streaks of smaller, poorly oriented grains very often seen in the final product produced from silicon steel slabs.

摘要翻译： 由特别是连续铸钢板的硅钢板生产晶粒取向硅钢板的方法，该方法包括在热轧中在1190℃至960℃的温度范围内以高还原率进行的至少一次再结晶轧制 步。 本发明的方法非常有效地防止了在由硅钢板生产的最终产品中经常看到的较小的较差取向晶粒的条纹。