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本专利为高磁感取向硅钢片的生产方法,其特点是,在热轧板高温连续退火后的冷却中,连续或分段对整个钢卷轧向进行可变冷却,以使对钢卷轧向热轧精轧的高温部位进行急冷,低温部位进行缓冷。一次冷轧轧成最终板厚。本专利的目的是提供一种工业性生产方法,生产出轧向具有均匀优良磁性的高磁感取向电工钢板成品,其要点:将含Si<4.0%、C<0.085%、酸溶铝0.010~0.065%、总N0.003~0.010%的钢水,连铸或模铸后开坯轧成板坯;经热轧轧成热轧板卷;高温退火后进行急冷;一次冷轧轧成最终板厚;在湿氢保护气体中进行连续脱碳退火,进一步在
This patent is a production method of high magnetic induction oriented silicon steel sheet, which is characterized in that in the cooling after the continuous annealing of the hot-rolled sheet at high temperature, the whole coil is continuously or segmented to be cooled variably so as to make the steel coil Rapid hot rolling to the high temperature parts, low temperature parts slow cooling. A cold rolling into the final thickness. The purpose of this patent is to provide an industrial production method to produce a finished product of a high magnetic induction oriented electrical steel sheet which has a uniform and excellent magnetic property. The main points are as follows: a steel sheet containing Si <4.0%, C <0.085%, acid- 0.065%, total N0.003 ~ 0.010% of the molten steel, continuous casting or die casting after rolling into a slab; hot rolled into hot rolled coil; quenched after high temperature annealing; a cold rolling into the final thickness ; Continuous wet decarburization annealing in wet hydrogen shielding gas, further in