公开(公告)号：US5074931A

公开(公告)日：1991-12-24

申请号：US550856

申请日：1990-07-10

申请人： Kishio Mochinaga ,  Kiyokazu Ichimura ,  Shinji Shibao ,  Syuji Kitahara ,  Shiro Ichikawa

发明人： Kishio Mochinaga ,  Kiyokazu Ichimura ,  Shinji Shibao ,  Syuji Kitahara ,  Shiro Ichikawa

IPC分类号： B21B1/02 ,  B21B3/02 ,  C21D8/12

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。