公开(公告)号：EP2532758A1

公开(公告)日：2012-12-12

申请号：EP11835498.4

申请日：2011-04-27

申请人： Baoshan Iron & Steel Co., Ltd.

发明人： MA, Aihua ,  WANG, Bo ,  XIE, Shishu ,  HU, Zhanyuan ,  ZOU, Liang ,  WANG, Zitao ,  ZHU, Yuhua ,  HUANG, Jie ,  JIN, Bingzhong ,  LIU, Xiandong

IPC分类号： C21D8/12 ,  C22C38/60

CPC分类号： C21D8/005 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/60 ,  H01F1/16

摘要： A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C≤ 0.0040%, Si:0.1∼0.8%, Al:0.002∼1.0%, Mn:0.10∼1.50%, P:≤0.2%, Sb:0.04∼0.08%, S≤0.0030%, N≤0.0020%, Ti ≤ 0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100 °C~1150 °C and finish-rolling temperature is 860 °C ∼920 °C; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30xSb%)s ≤t≤7s; thereafter reeling at a temperature ≥720°C ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70∼78%; 4) annealing; heating up the cold-rolled plate to 800∼1000 °C at heating rate of ≥ 15 °C/s, and holding time is 10~25s. Under the precondition to ensure magnetic properties, this invention implements low cost manufacture of high efficiency electric steel by adding elements advantageous to favorable texture during steel making, controlling contents of adverse elements and coordinating air cooling time control during hot-rolling with high temperature reeling.

摘要翻译： 高效率的无取向硅钢的具有优异的磁特性，其包括以下步骤的制造方法：1）熔炼和铸造; 无取向硅钢，按重量百分比计的化学组成，是：C‰¤0.0040％以下，Si：0.1¼0.8％以下，Al：0.002¼1.0％以下，Mn：0.10¼1.50％，P：‰¤0.2 ％，锑：0.04¼0.08％，S‰¤0.0030％，N‰¤0.0020％以下，Ti‰¤0.0020％，其余是Fe和不可避免的夹杂物; 与上述组合物雅舞蹈钢水熔炼，然后浇铸成坯料; 2）热轧和酸洗; 加热温度为板坯1100℃〜1150℃，终轧温度为860℃¼920℃; 轧制后，热轧产品空气冷却，其中空气冷却时间t期间：（2 + 30xSb％）S‰‰¤t¤7s; 此后在‰¥720℃的温度下卷取; 3）冷轧; 轧，以形成冷轧板与的70¼78％的压缩比目标厚度; 4）退火; 在‰¥15℃/ s的升温速度升温的冷轧板以800¼1000℃，保持时间为10〜25秒。 在先决条件下，以确保磁特性，本发明实现了低成本的制造高效率电动钢的由炼钢过程中加入有利的有利纹理元素，控制不良的元素的含量，并在热轧高温卷取协调空气冷却时间控制。

公开(公告)号：EP2508629A1

公开(公告)日：2012-10-10

申请号：EP11835489.3

申请日：2011-04-14

申请人： Baoshan Iron & Steel Co., Ltd.

发明人： WANG, Zitao ,  WANG, Bo ,  XIE, Shishu ,  JIN, Bingzhong ,  MA, Aihua ,  ZOU, Liang ,  ZHU, Yuhua ,  HU, Zhanyuan ,  CHEN, Xiao

IPC分类号： C21D8/12 ,  C22C38/02 ,  C22C38/06

CPC分类号： C22C38/00 ,  C21D1/00 ,  C21D6/008 ,  C21D8/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/16

摘要： Abstract: A manufacture process of non-oriented silicon Steel with high magnetic induction comprising the procedures: 1) smelting and casting: the steel's chemical compositions by weight percent: Si 0.1~1%, Al 0.005~1.0%, C ≤ 0.004%, Mn = 0.10~1.50%, P ≤ 0.2%, , S ≤0.005%, N ≤0.002, Nb+V+Ti ≤0.006%, and the rest is Fe; molten steel is smelted and secondary refined and then casted into a billet; 2) hot-rolling: the billet is heated to 1150~1200°C, and then hot-rolled into a plate at finish-rolling temperature 830~900 °C , at a temperature ≥ 570°C, and is coiled; 3) flattening: the plate is cold-rolled at compression ratio 2~5%; 4) normalization: the plate is normalized at temperature not below 950°C for 30~180s; 5) pickling and cold-rolling: the normalized plate is pickled, and then is successively cold-rolled several times at total compression ratio 70~80% into a sheet with thickness of finished product; 6) finish-annealing: the cold-rolled sheet is quickly heated to 800~1000 °C at temperature rise rate ≥ 100°C/s, and soaked for 5~60s, thereafter, cooled slowly to 600~750C, then left to cool naturally. The manufacture process can raise magnetic induction of non-oriented silicon Steel by at least 200 Gauss without increasing iron loss.

摘要翻译： 摘要：1）熔炼和铸造：按重量百分比计在钢的化学组合物：硅0.1〜1％以下，Al 0.005〜1.0％，C‰¤0.004％无取向硅钢的具有高磁感应包括的过程的制造过程 ，锰= 0:10〜1：50％，P‰¤0.2％，S‰¤0.005％，N‰¤0.002，NB + V +的Ti‰¤0.006％，其余为Fe; 钢水熔炼和次级精制，然后浇铸成坯料; 2）热轧：将钢坯加热至1150〜1200℃，然后热轧在终轧温度为板830〜900℃，在‰¥570℃的温度，并且是盘绕; 3）平坦化：所述板是冷轧在压缩比2〜5％; 4）归一化：将板在温度不低于950℃下进行30〜180秒归一化; 5）酸洗和冷轧：归一化的板进行酸洗，然后是连续冷轧几次在总压缩比70〜80％与成品的厚度的片材; 6）最终退火：所述冷轧板是在升温速度‰¥100℃/秒，快速加热到800〜1000℃，浸泡5〜60，此后，缓慢冷却至600〜750℃，然后左 自然冷却。 制造过程中可以通过至少200个高斯，而不增加铁损提高无取向硅钢的磁感应。

公开(公告)号：EP2532758B1

公开(公告)日：2018-07-18

申请号：EP11835498.4

申请日：2011-04-27

申请人： Baoshan Iron & Steel Co., Ltd.

发明人： MA, Aihua ,  WANG, Bo ,  XIE, Shishu ,  HU, Zhanyuan ,  ZOU, Liang ,  WANG, Zitao ,  ZHU, Yuhua ,  HUANG, Jie ,  JIN, Bingzhong ,  LIU, Xiandong

IPC分类号： C21D8/12 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D8/005 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/60 ,  H01F1/16

摘要： A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C‰¤ 0.0040%, Si:0.1ˆ¼0.8%, Al:0.002ˆ¼1.0%, Mn:0.10ˆ¼1.50%, P:‰¤0.2%, Sb:0.04ˆ¼0.08%, S‰¤0.0030%, N‰¤0.0020%, Ti ‰¤ 0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100 °C~1150 °C and finish-rolling temperature is 860 °C ˆ¼920 °C; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30xSb%)s ‰¤t‰¤7s; thereafter reeling at a temperature ‰¥720°C ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70ˆ¼78%; 4) annealing; heating up the cold-rolled plate to 800ˆ¼1000 °C at heating rate of ‰¥ 15 °C/s, and holding time is 10~25s. Under the precondition to ensure magnetic properties, this invention implements low cost manufacture of high efficiency electric steel by adding elements advantageous to favorable texture during steel making, controlling contents of adverse elements and coordinating air cooling time control during hot-rolling with high temperature reeling.

公开(公告)号：EP2631315A1

公开(公告)日：2013-08-28

申请号：EP11835497.6

申请日：2011-04-27

申请人： Baoshan Iron & Steel Co., Ltd.

发明人： HU, Zhanyuan ,  WANG, Bo ,  XIE, Shishu ,  MA, Aihua ,  ZOU, Liang ,  WANG, Zitao ,  ZHU, Yuhua

IPC分类号： C22C38/40 ,  C21D8/12

CPC分类号： C22C38/06 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/001 ,  C22C38/04 ,  C22C38/34 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

摘要： A non-oriented electrical steel having relative high magnetic induction and high intensity and a manufacturing method thereof, comprising steps as follows: 1) smelting and pouring, the weight percentage of the compositions of the electrical steel are as follows: C≤0.0040%, Si is 2.50% to 4.00%, Al is 0.20% to 0.80%, Cr is 1.0 to 8.0%, Ni is 0.5 to 5.0%, Mn≤0.50%, P≤0.30%, S≤0.0020%, N≤0.0030%, Ti≤0.0030%, Nb≤0.010%, V≤0.010%, C+S+N+Ti ≤0.010%, and a balance substantially being Fe and inevitable impurities, carrying out smelting, RH vacuum process and pouring; 2) hot rolling; 3) normalizing, temperature is 850 to 950°C, time is 0.5 to 3 min, then being cooled to 650 to 750 °C slowly at 5 to 15°C/s, further being cooled to no higher than 100 °C fast at 20 to 70°C/s; 4) acid pickling and cold rolling, total screw-down rate is no less than 70%; 5) annealing, temperature is 800 to 1000 °C, holding 5 to 60s, then being cooled to 650 to 750°C slowly at 3 to 10°C/s, further being cooled to no higher than 100°C fast at 20 to 70°C/s. The present invention can manufacture a non-oriented electrical steel having high intensity and high magnetic induction without increasing manufacturing difficulty.

摘要翻译： 具有相对高的磁感应强度高和其制造方法的非取向电工钢，其特征在于步骤如下：1）熔炼和浇注，是电工钢的组合物的重量百分比如下所示：C‰¤0.0040％ ，Si是2点50分〜4：00 %%，Al为0.20％〜0.80％以下，Cr为1.0〜8.0％，Ni为0.5〜5.0％以下，Mn‰¤0.50％，P‰¤0.30％，S‰¤0.0020％，N ‰¤0.0030％以下，Ti‰¤0.0030％以下，Nb‰¤0.010％，V‰¤0.010％，C + N + S +的Ti‰¤0.010％，余量为Fe和不可避免的杂质基本上，进行熔炼，RH 真空处理和浇注; 2）热轧; 3）正火，温度为850〜950℃，时间为0.5〜3分钟，然后冷却至650〜750℃慢慢在5〜15℃/ s时，Furtherwirt被冷却至不高于100℃几乎在 20〜70℃/秒; 4）酸洗和冷轧，总压下率不大于70％以下; 5）退火，温度为800〜1000℃，保持5〜60秒，然后冷却至650〜750℃缓慢以3〜10℃/秒，Furtherwirt被冷却至不高于100℃几乎在20〜 70℃/秒。 本发明可以制造具有高强度和高的磁感应而不会增加制造难度的无取向电工钢。

公开(公告)号：EP2532766A1

公开(公告)日：2012-12-12

申请号：EP11819309.3

申请日：2011-04-13

申请人： Baoshan Iron & Steel Co., Ltd.

发明人： CHEN, Lingfeng ,  CHEN, Xiao ,  HU, Zhanyuan

IPC分类号： C22C38/06 ,  C21D8/12

CPC分类号： C21D8/1233 ,  C21D8/12 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A cold rolled electromagnetic steel sheet for rapid cycling synchrotron, and a manufacturing method thereof, the method includes the steps of 1) smelting and casting, the composition of the cold rolled electromagnetic steel sheet is C 0.001∼0.003 wt%, Si 0.60%∼0,90 wt%, Mn 0.40%∼0.70wt%, P≤0.04 wt%,Al 0.60∼0.80 wt%, S≤0.0035 wt%, N≤0.003 wt%, and the rest is Fe; smelting and RH refining, and then casting to form semi-finished product; 2) hot rolling; 3) normalizing, in which the normalizing temperature is controlled between 960°C ∼980°C, and the normalizing time is 30∼60s; 4) pickling and cold rolling; 5) annealing, wherein the annealing temperature is controlled to be between 850°C ∼870°C, and the annealing time is 13∼15s;6) obtaining non-oriented silicon steel product after coating. The cold rolled electromagnetic steel sheet of the present invention has low coercivity, specifically in case that the magnetizing intense returns to zero after reaching 10 Oersted (Oe), the coercivity of the material is Hc≤79.6 A/m; high magnetic induction, which is B50≥1.75T; and low iron losses of P15/50≤4.2W/kg, and the iron losses after strain-annealing is P15/50≤3.5W/kg.

摘要翻译： 的冷轧电磁钢板快循环同步加速器，以及它们的制造方法，该方法包括：1）熔炼和铸造的工序，冷轧电磁钢板的组成是C0.001¼0.003重量％，Si 0.60％ ¼0,90重量％以下，Mn 0.40％¼0.70wt％，P‰¤0.04重量％以下，Al0.60¼0.80重量％，S‰¤0.0035重量％，N‰¤0.003重量％，其余为Fe; 冶炼和精炼RH，然后浇铸以形成半成品; 2）热轧; 3）正火，其中，所述归一化温度960℃¼980℃，并且归一化时间之间的受控是30¼60s; 4）酸洗和冷轧; 5）退火，worin退火温度控制在850℃¼870℃之间，退火时间是13¼15s; 6）在涂布后获得无取向硅钢产品。 本发明的冷轧电磁钢板具有低矫顽力，特别是在没有的情况下磁化强返回到零达到10奥斯特（Oe〕）中后，该材料的矫顽力Hc的是‰¤79.6A /米; 高磁感应强度，所有这些是B50‰¥1.75T; 和的P15 / 50‰¤4.2W/ kg的低铁损，和应变退火后的铁损是P15 / 50‰¤3.5W/公斤。