公开(公告)号：US09570948B2

公开(公告)日：2017-02-14

申请号：US14785168

申请日：2014-04-15

Applicant: NHK SPRING CO., LTD.

Inventor： Yohei Kameda ,  Kazuo Iwata ,  Yuji Araoka ,  Yoshiki Ono

IPC: H02K1/27 ,  H02K15/03 ,  H02K29/03

CPC classification number: H02K1/276 ,  H02K1/27 ,  H02K1/2766 ,  H02K15/03 ,  H02K29/03

Abstract: A magnet plate used for a rotor core of a motor, includes a magnetic pole portion being set between an outer peripheral edge of a body portion and a magnet slot and having a radial width being smaller than a radial sectional width of the permanent magnet, and a higher hardness portion being formed into a hook shape along an end corner of the magnet slot and have a smaller width than the radial sectional width of the permanent magnet.

Abstract translation: 用于电动机的转子铁芯的磁板包括设置在主体部分的外周边缘和磁体槽之间并具有小于永磁体的径向截面宽度的径向宽度的磁极部分，以及 较高的硬度部分沿着磁体槽的端角形成钩状并且具有比永磁体的径向截面宽度更小的宽度。

公开(公告)号：US09920403B2

公开(公告)日：2018-03-20

申请号：US14395121

申请日：2013-03-29

Applicant: NHK SPRING CO., LTD.

Inventor： Yuji Araoka ,  Tohru Shiraishi ,  Yoshiki Ono

IPC: C22C23/06 ,  B22F3/10 ,  B22F3/20 ,  B22F3/24 ,  B22F5/12 ,  C22C23/00 ,  C22C1/02 ,  C22F1/06 ,  B22D11/00 ,  B22D21/00 ,  C22C23/02 ,  C22C1/04 ,  B22D11/06 ,  B21C23/00 ,  C21D7/06 ,  C21D8/06 ,  C21D7/00

CPC classification number: C22C23/06 ,  B21C23/001 ,  B21C23/005 ,  B22D11/005 ,  B22D11/0611 ,  B22D21/007 ,  B22F3/10 ,  B22F3/20 ,  B22F3/24 ,  B22F5/12 ,  B22F2998/10 ,  C21D7/00 ,  C21D7/06 ,  C21D8/06 ,  C22C1/02 ,  C22C1/0408 ,  C22C23/00 ,  C22C23/02 ,  C22F1/06 ,  Y02P10/212 ,  Y10T428/12 ,  Y10T428/12993 ,  B22F9/08 ,  B22F3/17 ,  B22F2003/166 ,  B22F3/18

Abstract: A high-strength magnesium alloy member is suitable for products in which at least one of bending stress and twisting stress primarily acts. The member has required elongation and 0.2% proof stress, whereby strength and formability are superior, and has higher strength and large compressive residual stress in the vicinity of the surface of a wire rod. In the magnesium alloy member formed as a wire rod in which at least one of bending stress and twisting stress primarily acts, the wire rod includes a surface portion having the highest hardness of 170 HV or more in the vicinity of the surface and an inner portion having a 0.2% proof stress of 550 MPa or more and an elongation of 5% or more, and the wire rod has the highest compressive residue stress in the vicinity of the surface of 50 MPa or more.

公开(公告)号：US20150104669A1

公开(公告)日：2015-04-16

申请号：US14395121

申请日：2013-03-29

Applicant: NHK SPRING CO., LTD.

Inventor： Yuji Araoka ,  Tohru Shiraishi ,  Yoshiki Ono

IPC: C22C23/06 ,  C22C23/00 ,  B22F3/20 ,  B22F5/12 ,  B22F3/10 ,  B22F3/24

CPC classification number: C22C23/06 ,  B21C23/001 ,  B21C23/005 ,  B22D11/005 ,  B22D11/0611 ,  B22D21/007 ,  B22F3/10 ,  B22F3/20 ,  B22F3/24 ,  B22F5/12 ,  B22F2998/10 ,  C21D7/00 ,  C21D7/06 ,  C21D8/06 ,  C22C1/02 ,  C22C1/0408 ,  C22C23/00 ,  C22C23/02 ,  C22F1/06 ,  Y02P10/212 ,  Y10T428/12 ,  Y10T428/12993 ,  B22F9/08 ,  B22F3/17 ,  B22F2003/166 ,  B22F3/18

Abstract: A high-strength magnesium alloy member is suitable for products in which at least one of bending stress and twisting stress primarily acts. The member has required elongation and 0.2% proof stress, whereby strength and formability are superior, and has higher strength and large compressive residual stress in the vicinity of the surface of a wire rod. In the magnesium alloy member formed as a wire rod in which at least one of bending stress and twisting stress primarily acts, the wire rod includes a surface portion having the highest hardness of 170 HV or more in the vicinity of the surface and an inner portion having a 0.2% proof stress of 550 MPa or more and an elongation of 5% or more, and the wire rod has the highest compressive residue stress in the vicinity of the surface of 50 MPa or more.

Abstract translation: 高强度镁合金构件适用于主要作用弯曲应力和扭转应力中的至少一种的产品。 该构件需要伸长率和0.2％屈服应力，其强度和成形性优异，并且在线材表面附近具有较高的强度和较大的压缩残余应力。 在形成为弯曲应力和扭转应力中的至少一个主要作用的线材的镁合金构件中，线材包括在表面附近具有最高硬度为170HV或更高的表面部分， 具有550MPa以上的0.2％屈服应力和5％以上的伸长率，并且线材在表面附近具有最高的压缩残余应力为50MPa以上。