公开(公告)号：EP2682495A1

公开(公告)日：2014-01-08

申请号：EP12752196.1

申请日：2012-02-28

申请人： NISSHIN STEEL CO., LTD.

发明人： HIRATA, Kentaro ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  HOSOMI, Kazuaki ,  URANAKA, Masaaki

IPC分类号： C22C38/14 ,  C22C38/38 ,  C21D8/02 ,  C22C18/04 ,  C23C2/06 ,  C23C2/40

CPC分类号： B60R13/00 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0278 ,  C21D2211/004 ,  C21D2211/005 ,  C22C18/04 ,  C22C23/02 ,  C22C23/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40 ,  Y10T428/12799

摘要： [Problem] To provide a steel sheet hot-dip-plated with a Zn-Al-Mg-based alloy coating, which is remarkably improved in point of all the burring workability, the liquid metal embrittlement cracking resistance and the corrosion resistance in the welded part thereof, as a steel material favorable for arc-welded structural members.
[Means for Resolution] A plated steel sheet having a Zn-Al-Mg-based alloy coating layer formed by hot-dipping on the surface of a base steel sheet for welded structural members, wherein the base steel sheet has a specific chemical composition and has a metallographic structure of such that Ti-containing precipitates having a mean particle diameter of at most 20 nm are dispersed in the matrix formed of a ferrite phase therein, and wherein the liquid metal embrittlement cracking sensitivity index H3 value of the base steel sheet represented by the following formula (3) and indicating the relationship between the contents of the steel components and the thickness t (mm) of the steel sheet is at most 2.90:

摘要翻译： [问题]为了提供热浸镀Zn-Al-Mg基合金涂层的钢板，其在所有的加工加工性方面都得到显着改善，焊接中的液态金属脆性开裂性和耐腐蚀性 作为有利于电弧焊结构体的钢材。 [解决方法]将通过在用于焊接结构件的基础钢板的表面上热浸而形成的Zn-Al-Mg系合金被覆层的电镀钢板，其中，所述基体钢板具有特定的化学成分， 具有使平均粒径为20nm以下的含Ti析出物分散在由铁素体相形成的基体中的金相组织，其中，所述基体钢板的液态金属脆化裂纹敏感性指数H3值 通过下式（3）表示钢构件的含量与钢板的厚度t（mm）之间的关系为2.90以下：

公开(公告)号：EP2682495B1

公开(公告)日：2019-01-02

申请号：EP12752196.1

申请日：2012-02-28

申请人： NISSHIN STEEL CO., LTD.

发明人： HIRATA, Kentaro ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  HOSOMI, Kazuaki ,  URANAKA, Masaaki

IPC分类号： C22C38/14 ,  C22C38/38 ,  C21D8/02 ,  C22C18/04 ,  C23C2/06 ,  C23C2/40 ,  B32B15/01

公开(公告)号：EP2693602A1

公开(公告)日：2014-02-05

申请号：EP12763062.2

申请日：2012-03-27

申请人： Nisshin Steel Co., Ltd.

发明人： IWATSU, Tomonaga ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  MORIKAWA, Shigeru

IPC分类号： H02K1/02 ,  H02K1/22 ,  H02K1/27

CPC分类号： H02K1/272 ,  H02K1/02 ,  H02K1/2766 ,  H02K2213/03 ,  Y02T10/641 ,  H02K1/04

摘要： A rotor iron core is used, which is formed by laminating a base steel sheets with a magnetic flux density (B8000) of 1.65 T or more as measured at a magnetic field strength of 8000 A/m and a coercivity of 100 A/m or more.

摘要翻译： 使用转子铁芯，其通过层压在8000A / m的磁场强度和100A / m的矫顽力下测量的1.65T或更大的磁通密度（B8000）的基础钢板，或 更多。

公开(公告)号：EP2832880B1

公开(公告)日：2017-11-15

申请号：EP13768070.8

申请日：2013-03-27

申请人： NISSHIN STEEL CO., LTD.

发明人： IWATSU, Tomonaga ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  KAWAMOTO, Akito

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/06 ,  C22C38/58 ,  H01F1/16

CPC分类号： H01F41/024 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/02 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/125 ,  C21D8/1283 ,  C21D9/46 ,  C21D9/573 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H01F1/16 ,  H02K15/00

摘要： The present invention manufactures a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B 8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet manufactured according to the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.

公开(公告)号：EP2832883A1

公开(公告)日：2015-02-04

申请号：EP13769288.5

申请日：2013-03-27

申请人： Nisshin Steel Co., Ltd.

发明人： IWATSU, Tomonaga ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  KAWAMOTO, Akito

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/06 ,  C22C38/58 ,  H01F1/18

CPC分类号： C21D9/46 ,  C21D1/26 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0252 ,  C21D8/1233 ,  C21D8/1238 ,  C21D8/1266 ,  C21D8/1288 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H01F1/14716 ,  H01F1/14725 ,  H01F1/14775 ,  H01F1/14783 ,  H01F1/14791 ,  H01F1/18 ,  H02K1/2706 ,  Y10T428/31678

摘要： The present invention provides a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B 8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet of the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.

摘要翻译： 本发明提供一种IPM电机的转子铁芯用钢板，其特征在于，所述钢板的磁通强度为8000A / m时测定的磁通密度B 8000为1.65T以上，剩余磁通密度 此时测定的0.5T以上的Br，任意地，磁化后测定的矫顽力Hc为100A / m以上，达到8000A / m。 通过将本发明的钢板用于IPM电动机的转子铁芯，可以进一步提高高速旋转范围的输出转矩，进一步提高最大转速。

公开(公告)号：EP2832880A1

公开(公告)日：2015-02-04

申请号：EP13768070.8

申请日：2013-03-27

申请人： Nisshin Steel Co., Ltd.

发明人： IWATSU, Tomonaga ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  KAWAMOTO, Akito

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/06 ,  C22C38/58 ,  H01F1/16

CPC分类号： H01F41/024 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/02 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/125 ,  C21D8/1283 ,  C21D9/46 ,  C21D9/573 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  H01F1/16 ,  H02K15/00

摘要： The present invention manufactures a steel sheet for a rotor core for an IPM motor, wherein the steel sheet has a magnetic flux density B 8000 of 1.65 T or more as measured when magnetic field strength is 8000 A/m, and a residual magnetic flux density Br of 0.5 T or more as measured at that time, and optionally, a coercivity Hc of 100 A/m or more as measured after magnetization reaches 8000 A/m. By using the steel sheet manufactured according to the present invention for a rotor core of an IPM motor, it is possible to increase further an output torque in a high-speed rotational range and raise further the maximum rotational speed.

摘要翻译： 本发明制造用于IPM电动机的转子铁心用钢板，其中，当磁场强度为8000A / m时，钢板的磁通密度B 8000为1.65T以上，剩余磁通密度 此时测定的0.5T以上的Br，任意地，磁化后测定的矫顽力Hc为100A / m以上，达到8000A / m。 通过使用根据本发明制造的钢板用于IPM电动机的转子铁芯，可以进一步增加高速旋转范围内的输出转矩并进一步提高最大转速。

公开(公告)号：EP3470541A1

公开(公告)日：2019-04-17

申请号：EP18209034.0

申请日：2012-02-28

申请人： Nisshin Steel Co., Ltd.

发明人： HIRATA, Kentaro ,  KATAGIRI, Yukio ,  FUJIWARA, Susumu ,  HOSOMI, Kazuaki ,  URANAKA, Masaaki

IPC分类号： C22C38/14 ,  C22C38/38 ,  C21D8/02 ,  C22C18/04 ,  C23C2/06 ,  C23C2/40 ,  B32B15/01

摘要： [Problem] To provide a steel sheet hot-dip-plated with a Zn-Al-Mg-based alloy coating, which is remarkably improved in point of all the burring workability, the liquid metal embrittlement cracking resistance and the corrosion resistance in the welded part thereof, as a steel material favorable for arc-welded structural members.
[Means for Resolution] A plated steel sheet having a Zn-Al-Mg-based alloy coating layer formed by hot-dipping on the surface of a base steel sheet for welded structural members, wherein the base steel sheet has a specific chemical composition and has a metallographic structure of such that Ti-containing precipitates having a mean particle diameter of at most 20 nm are dispersed in the matrix formed of a ferrite phase therein, and wherein the liquid metal embrittlement cracking sensitivity index H3 value of the base steel sheet represented by the following formula (3) and indicating the relationship between the contents of the steel components and the thickness t (mm) of the steel sheet is at most 2.90: H 3 Value = C / 0.2 + Si / 5.0 + Mn / 1.3 + Cr / 1.0 + Mo / 1.2 + 0.4 t − 0.7 Cr + Mo 1 / 2

公开(公告)号：EP2407569A1

公开(公告)日：2012-01-18

申请号：EP10750839.2

申请日：2010-03-09

申请人： NISSHIN STEEL CO., LTD.

发明人： FUJIMOTO, Nobukazu ,  KODAMA, Shinichi ,  FUJIWARA, Susumu

IPC分类号： C22C38/00 ,  C22C18/04 ,  C22C38/14 ,  C22C38/58

CPC分类号： C22C18/04 ,  B32B15/013 ,  C21D9/46 ,  C21D2211/005 ,  C22C18/00 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/14 ,  C23C2/02 ,  C23C2/06 ,  Y10T428/12799

摘要： [Problem] To provide a zinc-based alloy-plated steel material in which low-carbon steel is used as the base material and which is excellent in resistance to molten-metal embrittlement cracking and has good workability.
[Means for Resolution]
A zinc-based alloy-plated steel material excellent in resistance to molten-metal embrittlement cracking, which has a zinc-based alloy-plating layer on the surface of a steel base material that has a chemical composition comprising, as % by mass, C: 0.010 to 0.100%, Si: at most 1.50%, Mn: at most 2.00%, P: at most 0.100%, S: at most 0.030%, N: at most 0.0050%, Ti: at most 0.050%, and B: 0.0003 to 0.0100%, with a balance of Fe and inevitable impurities, and having the value L to be defined by the following formula, L = {(Ti/48) + (B/11) }/(N/14), of at least 5.50, and has a metallographic structure comprising ferrite: 10 to 99% by volume with a balance of bainite, pearlite, cementite or martensite.