公开(公告)号：EP3202926A4

公开(公告)日：2017-10-04

申请号：EP15845836

申请日：2015-09-29

申请人： JFE STEEL CORP

发明人： FUKUNAGA TAKAYUKI

IPC分类号： C21D9/56 ,  B32B18/00 ,  C04B35/584 ,  F27D3/02

CPC分类号： C21D9/563 ,  B32B18/00 ,  C04B35/584 ,  C04B37/001 ,  C04B2235/3873 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/9676 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/704 ,  C04B2237/84 ,  C21D9/46 ,  C21D9/56 ,  C21D9/5737 ,  F27D3/026

摘要： Provided is a hearth roll for supporting and conveying a steel sheet in a continuous annealing furnace, wherein all of a shaft portion and a roll main body are made from one or more ceramic materials, preferably constituted with concentric ceramic layers of different ceramic materials centering on the rotation shaft of the roll. The hearth roll has not only an excellent pickup resistance but also a long roll life free from maintenance for long periods. Also provided is a continuous annealing facility using the hearth roll in at least one of a heating zone, a soaking zone and a cooling zone.

摘要翻译： 本发明提供一种用于在连续退火炉中支撑和输送钢板的炉底辊，其中，轴部和辊主体全部由一种或多种陶瓷材料制成，所述陶瓷材料优选由不同陶瓷材料的同心陶瓷层构成， 辊的旋转轴。 炉膛辊不仅具有出色的耐用性，而且还具有长时间的无需维护的滚动寿命。 还提供了在加热区，均热区和冷却区中的至少一个中使用炉底辊的连续退火设施。

公开(公告)号：EP2963131A4

公开(公告)日：2016-03-16

申请号：EP14756232

申请日：2014-02-24

申请人： JFE STEEL CORP

发明人： UESAKA MASANORI ,  IMAMURA TAKESHI ,  SUEHIRO RYUICHI ,  FUKUNAGA TAKAYUKI ,  TAKAMIYA TOSHITO

IPC分类号： C21D9/46 ,  C21D1/26 ,  C21D8/12 ,  C22C38/00 ,  C22C38/04 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/14775 ,  C21D1/26 ,  C21D3/04 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1261 ,  C21D8/1266 ,  C21D8/1272 ,  C21D8/1283 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/16 ,  C22C38/34 ,  C22C38/40 ,  C22C38/60 ,  H01F1/16 ,  H01F41/02

摘要： In a method for producing a grain-oriented electrical steel sheet by hot rolling a raw steel material containing C: 0.002ˆ¼0.10 mass%, Si: 2.0ˆ¼8.0 mass% and Mn: 0.005ˆ¼1.0 mass% to obtain a hot rolled sheet, subjecting the hot rolled sheet to a hot band annealing as required and further to one cold rolling or two or more cold rollings including an intermediate annealing therebetween to obtain a cold rolled sheet having a final sheet thickness, subjecting the cold rolled sheet to a primary recrystallization annealing combined with decarburization annealing, applying an annealing separator to the steel sheet surface and then subjecting to a final annealing, when rapid heating is performed at a rate of not less than 50°C/s in a range of 100ˆ¼700°C in the heating process of the primary recrystallization annealing, the steel sheet is subjected to a holding treatment at any temperature of 250ˆ¼600°C for 0.5ˆ¼10 seconds 2 to 6 times to thereby obtain a grain-oriented electrical steel sheet being low in the iron loss and small in the deviation of the iron loss value.

摘要翻译： 在通过热轧含有C：0.002〜0.10质量％，Si：2.0〜0.8质量％，Mn：0.005〜1.0质量％的粗钢材生产方向性电磁钢板的方法中， 将热轧板根据需要进行热带退火，并进一步进行一次冷轧或两次以上的冷轧，包括中间退火，得到最终板厚的冷轧板，对冷轧板进行 结合脱碳退火的一次再结晶退火，在100℃〜700℃的范围内以不低于50℃/ s的速度进行快速加热时，向钢板表面施加退火分离，然后进行最终退火 在一次再结晶退火的加热过程中，将钢板在250〜600℃的任何温度下进行0.5〜10秒的保持处理2〜6次，得到晶粒取向电 l钢板铁损较低，铁损偏差偏小。

公开(公告)号：EP2894232A4

公开(公告)日：2016-01-06

申请号：EP13832537

申请日：2013-09-02

申请人： JFE STEEL CORP

发明人： FUKUNAGA TAKAYUKI ,  AKAGI ISAO

IPC分类号： C21D9/60 ,  C21D1/42 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D9/60 ,  C21D1/26 ,  C21D1/42 ,  C21D8/12 ,  C21D8/1244 ,  C21D9/0006 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16 ,  Y02P10/253

摘要： In a continuous annealing line for steel sheets comprising a heating zone, a soaking zone and a cooling zone, two or more induction heating devices are arranged in series in a front half part of the heating zone, and a heating stop region of 1ˆ¼30 m in length or a slow heating region having a heating rate of more than 0°C/s but not more than 10°C/s is provided in a temperature zone that the temperature of the steel sheet between two or more induction heating devices is 250°C to 600°C. Even if the steel sheet is rapidly heated at a heating rate of not less than 50°C/s with such a rapid heating apparatus of the heating zone, the temperature distribution in the steel sheet is uniformized to realize the quality improvement of steel sheet shape or magnetic properties and so on.