公开(公告)号：US3948691A

公开(公告)日：1976-04-06

申请号：US481890

申请日：1974-06-21

申请人： Izumi Matsushita ,  Takayasu Sugiyama ,  Masakatsu Sumimoto ,  Osamu Honjo

发明人： Izumi Matsushita ,  Takayasu Sugiyama ,  Masakatsu Sumimoto ,  Osamu Honjo

IPC分类号： C21D8/12 ,  C22C38/02 ,  H01F1/16 ,  H01F1/04

CPC分类号： H01F1/16 ,  C21D8/1205 ,  C22C38/02 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/1261 ,  C21D8/1277

摘要： A method for manufacturing cold rolled, nondirectional electrical steel sheets and strips having a high magnetic flux density wherein a molten steel is solidified to obtain a slab in a manner that columnar grains develop predominantly from the surface in the direction of thickness of the slab up to a depth of more than 50%; said slab is heated to a temperature above 1000.degree.C without cogging and rolling to form .gamma.-phase at least more than about 10% of said slab, and hot rolled strongly with a draft of more than 98% without reheating to obtain a hot rolled steel sheet; and said hot rolled steel sheet is cold rolled with a draft of 64 - 84%, heated with a heating velocity of more than 1.6.degree.C/sec., and annealed at a temperature of 600.degree. - 1200.degree.C.

摘要翻译： 一种用于制造具有高磁通密度的冷轧，非定向电工钢板和带材的方法，其中钢水固化以获得板坯，其中柱状晶粒主要从板坯厚度方向的表面形成直到 深度超过50％; 将所述板坯加热到高于1000℃的温度，没有齿槽和轧制，以形成至少大于约10％的所述板坯的γ相，并且在不进行再加热的情况下以大于98％的牵伸强度热轧，得到热轧 钢板; 所述热轧钢板以64-84％的通气冷轧，加热速度大于1.6℃/秒，并在600-1200℃的温度下退火。