公开(公告)号：US4478653A

公开(公告)日：1984-10-23

申请号：US473775

申请日：1983-03-10

申请人： Martin F. Littmann

发明人： Martin F. Littmann

IPC分类号： C22C38/00 ,  C21D8/12 ,  H01F1/16 ,  H01F1/04

CPC分类号： C21D8/1266

摘要： A process for producing silicon steel strip of less than 0.30 mm thickness having cube-on-edge orientation, which comprises heating a silicon steel slab to 1300.degree.-1400.degree. C., hot rolling to hot band thickness, removing hot mill scale, cold rolling to intermediate thickness without annealing the hot rolled band, subjecting the intermediate thickness cold rolled material to an intermediate anneal at a temperature of 1010.degree. to about 1100.degree. C. with a total time of heating and soaking of less than about 180 seconds, cold rolling to a final thickness of less than 0.30 mm, decarburizing, applying an annealing separator, and finally annealing in conventional manner.

摘要翻译： 一种生产小于0.30mm厚度的硅钢带的方法，具有立方体边缘取向，其包括将硅钢板加热至1300-140℃，热轧至热带厚度，去除热轧板，冷却 轧制到中间厚度，而不退火热轧带材，使中等厚度的冷轧材料在1010℃至1100℃的温度下进行中间退火，总共加热和均热时间小于约180秒，冷却 轧制至小于0.30mm的最终厚度，脱碳，施加退火分离剂，最后以常规方式进行退火。

公开(公告)号：US4319936A

公开(公告)日：1982-03-16

申请号：US214441

申请日：1980-12-08

申请人： Norris A. Dahlstrom ,  Martin F. Littmann

发明人： Norris A. Dahlstrom ,  Martin F. Littmann

IPC分类号： C22C38/00 ,  C21D8/12 ,  H01F1/04 ,  H01F1/147 ,  H01F1/16

CPC分类号： C21D8/1261 ,  H01F1/14775

摘要： A process for the production of cube-on-edge oriented silicon steel of high permeability which comprises varying the temperature of the initial anneal and the quench starting temperature of the hot rolled steel in accordance with the aluminum and nitrogen contents of the steel. The initial anneal temperature ranges from about 1040.degree. to 1175.degree. C. and the quench starting temperature from about 700.degree. to 1090.degree. C. Improved permeability and core loss values are obtained over relatively broad aluminum and nitrogen ranges, viz., 0.024% to 0.040% total aluminum and 0.0050% to 0.0090% nitrogen, by ladle analysis.

摘要翻译： 一种用于生产高导磁率的立方成角定向硅钢的方法，其包括根据钢的铝和氮含量改变热轧钢的初始退火温度和淬火起始温度。 初始退火温度范围为约1040℃至1175℃，淬火起始温度为约700℃至1090℃。通过相对较宽的铝和氮气范围获得改善的渗透率和铁损值，即0.024％至 通过钢包分析，0.040％的铝和0.0050％至0.0090％的氮。

公开(公告)号：US4202711A

公开(公告)日：1980-05-13

申请号：US952313

申请日：1978-10-18

申请人： Martin F. Littmann ,  Allan R. Obman

发明人： Martin F. Littmann ,  Allan R. Obman

IPC分类号： C21D8/12 ,  H01F1/04

CPC分类号： C21D8/1205 ,  C21D8/1244

摘要： A process for producing grain oriented silicon iron from strand cast slabs having uniformly high permeability and low core loss, comprising the steps of melting and refining a ferrous charge to obtain a melt containing critical ranges of carbon, manganese, sulfur and/or selenium and critically low levels of nitrogen, aluminum, and titanium, casting to a slab thickness of about 125 to about 225 mm, reheating the slabs to about 1330.degree. to about 1400.degree. C., hot rolling, annealing at about 925.degree. to about 1050.degree. C., cold rolling in two stages with an intermediate anneal to final thickness, decarburizing, and subjecting the material to a final anneal in a hydrogen-containing reducing atmosphere to effect secondary recrystallization.

摘要翻译： 一种具有均匀高渗透性和低铁损的钢绞线铸造板坯生产晶粒取向硅铁的方法，包括以下步骤：将亚铁装料熔炼和精炼，以获得含有关键范围的碳，锰，硫和/或硒的熔体， 低水平的氮，铝和钛，铸造至约125至约225mm的板坯厚度，将板坯再加热至约1330℃至约1400℃，热轧，约925℃至约1050℃的退火 在两个阶段进行冷轧，中间退火至最终厚度，脱碳，并在含氢还原气氛中对材料进行最终退火，以进行二次再结晶。