公开(公告)号：US09496078B2

公开(公告)日：2016-11-15

申请号：US14372689

申请日：2012-03-29

申请人： Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

发明人： Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

IPC分类号： C21D6/00 ,  H01F1/147 ,  C21D8/12 ,  C21D1/26 ,  C22C38/02 ,  H01F41/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/00 ,  C21D9/70

CPC分类号： H01F1/14766 ,  C21D1/26 ,  C21D6/00 ,  C21D6/008 ,  C21D8/021 ,  C21D8/041 ,  C21D8/1205 ,  C21D8/1216 ,  C21D8/1244 ,  C21D9/0081 ,  C21D9/70 ,  C21D2201/05 ,  C22C38/02 ,  H01F41/00

摘要： A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is ° C./min; t is a total heating time of the slab in the heating furnace, and t=180-240 min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is ° C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220 ⁢ ⁢ min t × 100 ⁢ ° ⁢ ⁢ C . T C + 200 ⁢ ° ⁢ ⁢ C . × 25 ⁢ ° ⁢ ⁢ C . / ⁢ min ( 1 )

公开(公告)号：US20150243418A1

公开(公告)日：2015-08-27

申请号：US14372689

申请日：2012-03-29

申请人： Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

发明人： Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

IPC分类号： H01F1/147 ,  H01F41/00 ,  C22C38/02 ,  C21D8/12 ,  C21D6/00

CPC分类号： H01F1/14766 ,  C21D1/26 ,  C21D6/00 ,  C21D6/008 ,  C21D8/021 ,  C21D8/041 ,  C21D8/1205 ,  C21D8/1216 ,  C21D8/1244 ,  C21D9/0081 ,  C21D9/70 ,  C21D2201/05 ,  C22C38/02 ,  H01F41/00

摘要： A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is ° C./min; t is a total heating time of the slab in the heating furnace, and t=180-240 min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is ° C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220   min t × 100  °   C . T C + 200  °   C . × 25  °   C . /  min ( 1 )

摘要翻译： 热轧硅钢的制造方法包括：硅钢板坯加热工序，粗轧加工和精轧工序。 加热过程包括预热阶段，加热阶段和均热阶段。 预热阶段满足下式（1）。 在公式中，VTp是预热阶段的升温速率，单位为℃/ min; t是加热炉中板坯的总加热时间，t = 180-240分钟; Tc是板坯放入炉内时的初始温度，单位为℃。通过上述公式，加热处理和粗轧过程发生变化，生产热边缘边缘缺陷的发生率 可以减少轧制硅钢，并且可以生产具有良好表面质量的热轧硅钢。 V Tp> 220ㄧt××× T C + 200°C。 ×25°C。 /分钟（1）