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公开(公告)号：EP2719782A1
公开(公告)日：2014-04-16
申请号：EP12797338.6
申请日：2012-04-27
Applicant: Nhk Spring Co., Ltd.
Inventor： SHIRAISHI, Tohru , ONO, Yoshiki , ARAOKA, Yuji
CPC classification number: C22C14/00 , A61L27/06 , B22F1/0088 , B22F3/03 , B22F3/10 , B22F3/14 , B22F2003/208 , B22F2998/10 , B22F2999/00 , C22C1/0458 , C22F1/183 , C23C8/24 , C23C8/80 , B22F2201/02 , B22F9/06 , B22F1/004 , B22F2201/20 , B22F1/0003 , B22F3/15 , B22F3/105 , B22F3/20
Abstract: A titanium alloy member with high strength and high proof stress not only in the surface but also inside, using a general and inexpensive α-β type titanium alloy, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, and hot plastic forming the sintered titanium alloy member.
Abstract translation: 本发明提供一种钛合金构件及其制造方法，其使用通常廉价的α-β型钛合金，不仅在表面，而且在内部都具有高强度和高耐力的钛合金构件。 该制造方法包括：准备由钛合金构成的原料，通过在原料的表面层中生成氮化合物层和/或氮固溶体层，将原料氮化以形成含氮原料， 原料和含氮原料混合以产生含氮混合材料，将含氮混合材料烧结以获得烧结的钛合金构件，通过将材料粘合在一起并且将固体溶液中的氮均匀地从含氮原料中扩散 材料到烧结钛合金构件的整个内部部分，以及形成烧结钛合金构件的热塑性材料。
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2.发明公开MAGNETIC PLATE USED FOR ROTOR CORE OF MOTOR AND METHOD FOR MANUFACTURING MAGNETIC PLATE 审中-公开用于生产磁板的发动机和方法，磁板转子铁心
公开(公告)号：EP2988395A1
公开(公告)日：2016-02-24
申请号：EP14784870.9
申请日：2014-04-15
Applicant: NHK Spring Co., Ltd.
Inventor： KAMEDA, Yohei , IWATA, Kazuo , ARAOKA, Yuji , ONO, Yoshiki
CPC classification number: H02K1/276 , H02K1/27 , H02K1/2766 , H02K15/03 , H02K29/03
Abstract: Provided is a magnetic plate capable of contributing to higher torque, higher output, and downsizing and activating ineffective magnetic field, and preventing higher harmonic waves. The magnet plate is used for a rotor core of a motor, the magnetic plate having a body portion 7 formed into an annular shape, the rotor core in which a plurality of the magnetic plates are stacked one on another and permanent magnets whose cross-section is approximately rectangular and is elongated in a circumferential direction of the body portion 7 are held by a plurality of the magnet slots 13 being formed so as to be elongated in the circumferential direction inside an outer peripheral edge 9 and being arranged at the predetermined interval in the circumferential direction. The magnet plate includes a magnetic pole portion 21 being set between the outer peripheral edge 9 of the body portion 7 and the magnet slot 13 and having a radial width being set so as to be smaller than a radial sectional width of the permanent magnet 15, and a higher hardness portion 23 being set to be formed into a hook shape along an end corner of the magnet slot 13 and have a smaller width than the radial sectional width of the permanent magnet 15.
Abstract translation: 提供能够有助于更高的转矩，较高输出和小型化和激活无效的磁场，并防止高次谐波的磁性板。 磁性板被用于电动机的转子芯，其具有主体部7在环形设计形状形成为磁性板，转子铁心，其中所述磁性板的多元性被堆叠在另一个上的永久磁铁，其横截面 是大致矩形的并是细长的在主体部7的圆周方向上由磁体槽13被形成为在圆周方向上外周缘部9的内部是细长的，并在预定的时间间隔中被布置的多元性被保持 圆周方向上。 磁铁板包括被设置在主体部7的外周缘部9与磁铁槽13并具有径向宽度被设定为比永久磁铁15的径向截面宽度较小之间的磁极部21， 和更高的硬度部分23被设置以形成为在磁体槽13的端角部沿着磁体的钩形状并且具有比永久第十五的径向截面宽度更小的宽度
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公开(公告)号：EP2840155A1
公开(公告)日：2015-02-25
申请号：EP13778444.3
申请日：2013-03-29
Applicant: Nhk Spring Co., Ltd.
Inventor： ARAOKA, Yuji , SHIRAISHI, Tohru , ONO, Yoshiki
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.
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公开(公告)号：EP2840155B1
公开(公告)日：2017-10-11
申请号：EP13778444.3
申请日：2013-03-29
Applicant: NHK Spring Co., Ltd.
Inventor： ARAOKA, Yuji , SHIRAISHI, Tohru , ONO, Yoshiki
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.
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5.发明公开TITANIUM ALLOY MEMBER AND PRODUCTION METHOD THEREFOR 有权TISANLEGIERUNGSELEMENT UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2719781A1
公开(公告)日：2014-04-16
申请号：EP12796078.9
申请日：2012-04-27
Applicant: Nhk Spring Co., Ltd.
Inventor： SHIRAISHI, Tohru , ONO, Yoshiki , ARAOKA, Yuji
CPC classification number: B22F1/0081 , A61L27/06 , B22F3/24 , B22F2998/10 , C22C1/0458 , C22C14/00 , C22F1/183 , C23C8/80 , C23C26/00 , B22F1/0088 , B22F1/0003 , B22F3/10 , B22F3/14 , B22F3/15 , B22F3/105
Abstract: A high strength titanium alloy member with superior fatigue resistance, and a production method therefor, are provided. The titanium alloy member is made of an inexpensive α-β type titanium alloy having broad utility and has high proof stress and high strength from the surface to the entire interior portion, while having great compressive residual stress provided from the surface to deep in the interior. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, hot plastic forming and/or heat treating the sintered titanium alloy member to obtain a processed member, and surface treating the processed member to provide compressive residual stress.
Abstract translation: 提供了具有优异的耐疲劳性的高强度钛合金构件及其制造方法。 钛合金构件由廉价的±2型钛合金制成，具有广泛的用途，并且具有从表面到整个内部部分的高的抗应力和高强度，同时具有从表面到内部提供的很大的压缩残余应力 。 制造方法包括：制备由钛合金制成的原料，通过在原料的表面层中产生氮化合物层和/或氮固溶体层，将原料渗氮以形成含氮原料，将 原料和含氮原料，得到含氮混合材料，烧结含氮混合材料，通过将该材料粘合在一起并将固氮中的氮均匀地从含氮原料 材料到烧结钛合金构件的整个内部，热塑性成形和/或热处理烧结的钛合金构件以获得加工构件，并且对加工构件进行表面处理以提供压缩残余应力。
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Patent Agency Ranking
公开(公告)号：EP2719782B1
公开(公告)日：2018-02-14
申请号：EP12797338.6
申请日：2012-04-27
Applicant: NHK Spring Co., Ltd.
Inventor： SHIRAISHI, Tohru , ONO, Yoshiki , ARAOKA, Yuji
CPC classification number: C22C14/00 , A61L27/06 , B22F1/0088 , B22F3/03 , B22F3/10 , B22F3/14 , B22F2003/208 , B22F2998/10 , B22F2999/00 , C22C1/0458 , C22F1/183 , C23C8/24 , C23C8/80 , B22F2201/02 , B22F9/06 , B22F1/004 , B22F2201/20 , B22F1/0003 , B22F3/15 , B22F3/105 , B22F3/20
Abstract: A titanium alloy member with high strength and high proof stress not only in the surface but also inside, using a general and inexpensive ±-² type titanium alloy, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, and hot plastic forming the sintered titanium alloy member.
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7.发明公开HIGH-STRENGTH MAGNESIUM ALLOY WIRE AND METHOD FOR MANUFACTURING SAME, HIGH-STRENGTH MAGNESIUM ALLOY PRODUCT, AND HIGH-STRENGTH MAGNESIUM ALLOY SPRING 审中-公开高强度铝镁合金丝及其制造方法，高强度的镁合金产品和高强度的镁合金弹簧
公开(公告)号：EP2628813A1
公开(公告)日：2013-08-21
申请号：EP11832618.0
申请日：2011-10-14
Applicant: Nhk Spring Co., Ltd.
Inventor： ARAOKA, Yuji , SHIRAISHI, Tohru , ONO, Yoshiki
CPC classification number: C22C23/00 , B22F3/20 , B22F3/24 , B22F5/12 , B22F2998/00 , B22F2998/10 , C22C23/06 , C22F1/06 , B22F2303/01 , B22F2301/058 , B22F9/08 , B22F3/10
Abstract: A high-strength magnesium alloy wire rod suitable for products in which at least one of bending stress and twisting stress primarily acts is provided. The wire rod has required elongation and 0.2 % proof stress, whereby strength and formability are superior, and has higher strength in the vicinity of the surface. In the wire rod, the surface portion has the highest hardness in a cross section of the wire rod, the highest hardness is 170 HV or more, and the inner portion has a 0.2 % proof stress of 550 MPa or more and an elongation of 5% or more.
Abstract translation: 一种高强度的镁合金线材适合用于其中提供弯曲应力和扭转应力主要作用中的至少一种产物。 线材已要求的伸长率和0.2％屈服强度，由此强度和成形性优越，并且具有在表面附近更高的强度。 在线材中，表面部分具有在所述线材的横截面的最高硬度，硬度最高为170 [Hv]以上，并且所述内部部分具有550MPa以上和5伸长率的0.2％屈服强度 ％以上。
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公开(公告)号：EP2607507B1
公开(公告)日：2018-12-05
申请号：EP11818260.9
申请日：2011-08-15
Applicant: NHK Spring Co., Ltd.
Inventor： ARAOKA, Yuji , SHIRAISHI, Tohru , ONO, Yoshiki
IPC: C22C1/04 , B22F1/00 , B22F3/14 , B22F3/24 , C22C14/00 , C22F1/18 , C23C8/24 , B22F9/04 , C22F1/00
CPC classification number: C22C14/00 , B22F1/004 , B22F1/0081 , B22F1/0088 , B22F3/14 , B22F3/24 , B22F2003/248 , C22C47/14 , C22C49/11 , C22F1/183 , C23C8/02 , C23C8/24 , C23C8/80
Abstract: A titanium alloy material having high overall strength is produced by applying nitrogen to ±-² type titanium alloys that are widely used. A production method for a titanium alloy member includes preparing a titanium alloy material for sintering as a raw material of a sintered body; nitriding the titanium alloy material for sintering, thereby forming a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the titanium alloy material for sintering and yielding a nitrogen-containing titanium alloy material for sintering; mixing the titanium alloy material for sintering and the nitrogen-containing titanium alloy material for sintering, thereby yielding a titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material; sintering the titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material, thereby bonding the material each other and dispersing nitrogen contained in the nitrogen-containing titanium alloy material for sintering in a condition in which nitrogen is uniformly dispersed into an entire inner portion of the sintered body by solid solution.
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公开(公告)号：EP2719781B1
公开(公告)日：2016-09-14
申请号：EP12796078.9
申请日：2012-04-27
Applicant: NHK Spring Co., Ltd.
Inventor： SHIRAISHI, Tohru , ONO, Yoshiki , ARAOKA, Yuji
CPC classification number: B22F1/0081 , A61L27/06 , B22F3/24 , B22F2998/10 , C22C1/0458 , C22C14/00 , C22F1/183 , C23C8/80 , C23C26/00 , B22F1/0088 , B22F1/0003 , B22F3/10 , B22F3/14 , B22F3/15 , B22F3/105
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10.发明公开
公开(公告)号：EP2607507A1
公开(公告)日：2013-06-26
申请号：EP11818260.9
申请日：2011-08-15
Applicant: Nhk Spring Co., Ltd.
Inventor： ARAOKA, Yuji , SHIRAISHI, Tohru , ONO, Yoshiki
IPC: C22C1/04 , B22F1/00 , B22F3/14 , B22F3/24 , C22C14/00 , C22F1/18 , C23C8/24 , B22F9/04 , C22F1/00
CPC classification number: C22C14/00 , B22F1/004 , B22F1/0081 , B22F1/0088 , B22F3/14 , B22F3/24 , B22F2003/248 , C22C47/14 , C22C49/11 , C22F1/183 , C23C8/02 , C23C8/24 , C23C8/80
Abstract: A titanium alloy material having high overall strength is produced by applying nitrogen to α-β type titanium alloys that are widely used. A production method for a titanium alloy member includes preparing a titanium alloy material for sintering as a raw material of a sintered body; nitriding the titanium alloy material for sintering, thereby forming a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the titanium alloy material for sintering and yielding a nitrogen-containing titanium alloy material for sintering; mixing the titanium alloy material for sintering and the nitrogen-containing titanium alloy material for sintering, thereby yielding a titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material; sintering the titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material, thereby bonding the material each other and dispersing nitrogen contained in the nitrogen-containing titanium alloy material for sintering in a condition in which nitrogen is uniformly dispersed into an entire inner portion of the sintered body by solid solution.
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