-
公开(公告)号：EP3428294A1
公开(公告)日：2019-01-16
申请号：EP17763397.1
申请日：2017-03-09
IPC分类号： C21D8/12 , C21D9/46 , C22C38/00 , C22C38/60 , H01F1/147 , C21D6/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/40 , H01F1/16
摘要： To provide a grain-oriented electrical steel sheet that has better magnetic property than conventional ones without requiring high-temperature slab heating, a method of producing a grain-oriented electrical steel sheet comprises: heating a steel slab in a temperature range of 1300 °C or less; subjecting the steel slab to hot rolling, to obtain a hot rolled steel sheet; optionally subjecting the hot rolled steel sheet to hot band annealing; subjecting the hot rolled steel sheet after the hot rolling or after the hot band annealing to cold rolling once, or twice or more with intermediate annealing performed therebetween, to obtain a cold rolled steel sheet having a final sheet thickness; and subjecting the cold rolled steel sheet to primary recrystallization annealing and secondary recrystallization annealing, wherein in the case of not performing the intermediate annealing, the hot rolled steel sheet is subjected to the hot band annealing, and, in a heating process in the hot band annealing, heating is performed at a heating rate of 10 °C/s or less for 10 sec or more and 120 sec or less in a temperature range of 700 °C or more and 950 °C or less, and in the case of performing the intermediate annealing, in a heating process in final intermediate annealing, heating is performed at a heating rate of 10 °C/s or less for 10 sec or more and 120 sec or less in a temperature range of 700 °C or more and 950 °C or less.
-
公开(公告)号：EP2878688B1
公开(公告)日：2019-07-03
申请号：EP13822589.1
申请日：2013-07-25
-
公开(公告)号：EP3517646B1
公开(公告)日：2020-11-18
申请号：EP17853147.1
申请日：2017-09-21
-
公开(公告)号：EP3385397A1
公开(公告)日：2018-10-10
申请号：EP16870734.7
申请日：2016-11-30
CPC分类号： B23K15/00 , B23K26/352 , C21D6/008 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1266 , C21D8/1272 , C21D8/1283 , C21D8/1288 , C21D8/1294 , C21D2201/05 , C22C38/00 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , C23C8/02 , C23C8/26 , C23C8/38 , C23C8/50 , C23C8/80 , H01F1/147 , H01F1/16
摘要： A grain-oriented electrical steel sheet has magnetic properties improved over conventional grain-oriented electrical steel sheets. A method of producing a grain-oriented electrical steel sheet comprises: heating a steel slab at 1300 °C or less, the steel slab having a chemical composition containing C, Si, Mn, acid-soluble Al, S and/or Se, Sn and/or Sb, N, and a balance being Fe and inevitable impurities; subjecting the steel slab to hot rolling to obtain a hot rolled steel sheet; subjecting the hot rolled steel sheet to cold rolling once, or twice or more with intermediate annealing performed therebetween, to obtain a cold rolled steel sheet with a final sheet thickness; subjecting the cold rolled steel sheet to primary recrystallization annealing; applying an annealing separator to a surface of the cold rolled steel sheet after the primary recrystallization annealing; and then subjecting the cold rolled steel sheet to secondary recrystallization annealing.
-
公开(公告)号：EP3517646A1
公开(公告)日：2019-07-31
申请号：EP17853147.1
申请日：2017-09-21
IPC分类号： C22C38/00 , C21D8/12 , C21D9/46 , C22C38/60 , H01F1/147 , C21D6/00 , C22C38/02 , C22C38/04 , C22C38/06
摘要： Provided is a grain-oriented electrical steel sheet that has excellent magnetic properties and can be manufactured by secondary recrystallization orientation control using coil annealing with high productivity. A grain-oriented electrical steel sheet comprises a specific chemical composition, wherein an average value of a deviation angle (α 2 + β 2 ) 1/2 calculated from a deviation angle α from ideal Goss orientation around an ND rotation axis and a deviation angle β from ideal Goss orientation around a TD rotation axis is 5.0° or less, and an area ratio R β of crystal grains with β ≤ 0.50° is 20 % or less.
-
6.发明公开
公开(公告)号：EP3514261A1
公开(公告)日：2019-07-24
申请号：EP17861461.6
申请日：2017-10-17
IPC分类号： C23C28/04 , B32B15/04 , C21D8/12 , C21D9/46 , C22C38/00 , C22C38/60 , H01F1/147 , C23C14/06 , C23C16/32 , C23C16/34 , C23C16/36 , C23C16/30 , C23C14/22 , C22C38/02 , C22C38/04
摘要： Provided are: an oriented electromagnetic steel sheet with outstanding coating adhesion and magnetic properties after stress relief annealing; and a method for manufacturing the oriented electromagnetic steel sheet. The oriented electromagnetic steel sheet comprises: a steel sheet; a non-oxide ceramic coating disposed on the steel sheet and containing a non-oxide; and an insulating tensile coating disposed on the non-oxide ceramic coating and containing an oxide. The thickness of the non-oxide ceramic coating is 0.020-0.400 µm. The thickness of the insulating tensile coating is at least 1.0 µm. The chromium content on the steel plate side of the non-oxide ceramic coating is less than 25 atomic %, and the chromium content on the insulating tensile coating side of the non-oxide ceramic coating is at least 25 atomic %.
-
公开(公告)号：EP3428293A1
公开(公告)日：2019-01-16
申请号：EP17763269.2
申请日：2017-03-07
IPC分类号： C21D8/12 , C21D9/46 , C22C38/00 , C22C38/60 , C21D6/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/34 , H01F1/147
摘要： To provide a grain-oriented electrical steel sheet that has better magnetic property than conventional ones, a method of producing a grain-oriented electrical steel sheet comprises: heating a steel slab in a temperature range of 1300 °C or less; subjecting the steel slab to hot rolling, to obtain a hot rolled steel sheet; subjecting the hot rolled steel sheet to hot band annealing; subjecting the hot rolled steel sheet after the hot band annealing to cold rolling once, or twice or more with intermediate annealing performed therebetween, to obtain a cold rolled steel sheet having a final sheet thickness; subjecting the cold rolled steel sheet to primary recrystallization annealing; and applying an annealing separator to a surface of the cold rolled steel sheet after the primary recrystallization annealing, and thereafter subjecting the cold rolled steel sheet to secondary recrystallization annealing, wherein in the hot band annealing, an average heating rate from ordinary temperature to 400 °C is set to 50 °C/s or more, and a time to reach 900 °C from 400 °C is set to 100 sec or less.
-
公开(公告)号：EP3421624A1
公开(公告)日：2019-01-02
申请号：EP17756346.7
申请日：2017-02-16
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/147 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/34 , C21D1/28
摘要： To improve and stabilize magnetic properties, a steel sheet is soaked in a temperature range of 1000 °C or more and 1120 °C or less for 200 sec or less and then soaked in a temperature range of 650 °C or more and 1000 °C or less for 200 sec or less in annealing before final cold rolling, and the amount of Al in precipitates after the annealing before the final cold rolling is limited to 50 % or more of the total amount of Al contained in the steel slab.
-
9.发明公开ORIENTED ELECTROMAGNETIC STEEL PLATE PRODUCTION METHOD 审中-公开VERFAHREN ZUR HERSTELLUNG EINER ORIENTIGTEN ELEKTROMAGNETISCHEN STAHLPLATTE
公开(公告)号：EP2878688A1
公开(公告)日：2015-06-03
申请号：EP13822589.1
申请日：2013-07-25
CPC分类号： H01F1/14775 , C21D6/001 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1266 , C21D8/1272 , C21D8/1283 , C21D9/46 , C21D2201/05 , C22C38/00 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/34 , H01F1/16
摘要： In a method for producing a grain-oriented electrical steel sheet by hot rolling a steel slab having a chemical composition comprising C: 0.001∼0.10 mass%, Si: 1.0∼5.0 mass%, Mn: 0.01∼0.5 mass%, Al: less than 0.0100 mass%, each of S, Se, O and N: not more than 0.0050 mass% and the remainder being Fe and inevitable impurities, subjecting the resulting hot rolled sheet to a single cold rolling or two or more cold rollings sandwiching an intermediate annealing therebetween to a final thickness, subjecting to a primary recrystallization annealing, applying an annealing separator thereto and then subjecting to a finish annealing, a zone of 550∼700°C in a heating process of the primary recrystallization annealing is rapidly heated at an average heating rate of 40∼200°C/s, while any temperature zone of 250∼550°C is kept at a heating rate of not more than 10°C/s for 1∼10 seconds, whereby secondary recrystallized grains are refined to obtain a grain-oriented electrical steel sheet stably realizing a low iron loss.
摘要翻译： 在通过热轧具有C：0.001〜0.10质量％，Si：1.0〜5.0质量％，Mn：0.01〜0.5质量％的化学组成的钢坯的方法制造方向性电磁钢板的方法中， Al：小于0.0100质量％，S，Se，O和N中的每一个：不大于0.0050质量％，余量为Fe和不可避免的杂质，将所得热轧板进行单次冷轧或两次或更多次冷轧 在其间夹着中间退火至最终厚度，进行一次再结晶退火，向其中施加退火分离剂，然后进行最终退火，在一次再结晶退火的加热过程中，550/700℃的区域在 平均加热速度为40℃/ 200℃/秒，而在250℃〜550℃的任何温度区域以不超过10℃/ s的加热速率保持1×10秒，由此将二次再结晶晶粒精制，得到晶粒取向电 钢板稳定实现低铁损。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.012 秒)
