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1. 发明申请

US20060201588A1 Steel wire for high strength spring excellent in workability and high strength spring 有权
标题翻译：用于高强度弹簧的钢丝绳，加工性和弹簧强度高
公开(公告)号：US20060201588A1
公开(公告)日：2006-09-14
申请号：US10549753
申请日：2004-03-25
申请人： Sumie Suda , Nobuhiko Ibaraki , Noritoshi Takamura , Naoki Terakado , Satoru Tendo , Tadayoshi Fujiwara , Tetsuo Jinbo
发明人： Sumie Suda , Nobuhiko Ibaraki , Noritoshi Takamura , Naoki Terakado , Satoru Tendo , Tadayoshi Fujiwara , Tetsuo Jinbo
IPC分类号： C22C38/18
CPC分类号： C22C38/46 , C22C38/02 , C22C38/04 , C22C38/34 , C22C38/44
摘要： A steel wire has tempered martensite, comprises, as essential components, by mass, C: 0.53 to 0.68%; Si: 1.2 to 2.5%; Mn: 0.2 to 1.5%; Cr: 1.4 to 2.5%; Al: 0.05% or less; further comprises, as a selective component, Ni: 0.4% or less; V: 0.4% or less; Mo: 0.05 to 0.5%; or Nb: 0.05 to 0.5%; and further comprises remainder essentially consisting of Fe and inevitable impurities, wherein the grain size number of prior austenite is 11.0 or larger, and the proof stress ratio (σ0.2/σB), namely, a ratio of 0.2% proof stress (σ0.2) to tensile strength (σB) is 0.85 or lower. Satisfying the above requirements makes it possible to produce a steel wire for high-strength spring excellent both in workability (cold workability), and in sag resistance and fatigue properties.
摘要翻译：钢丝具有回火马氏体，以质量计C为0.53〜0.68％为必要成分。 Si：1.2〜2.5％ Mn：0.2〜1.5％ Cr：1.4〜2.5％ Al：0.05％以下; 进一步包含Ni：0.4％以下的选择性组分; V：0.4％以下; Mo：0.05〜0.5％或Nb：0.05〜0.5％并且还包含基本上由Fe和不可避免的杂质组成的剩余部分，其中原奥氏体的晶粒数为11.0或更大，并且证明应力比（σσ0.2 /σ2 / ），即0.2％屈服应力（σ<0.2％）与拉伸强度（σσB）之比为0.85以下。满足上述要求，可以生产出在加工性（冷加工性）以及抗下垂性和疲劳性方面优异的高强度弹簧钢丝。

2. 发明申请

US20090230602A1 Coil spring 有权
标题翻译：线圈弹簧
公开(公告)号：US20090230602A1
公开(公告)日：2009-09-17
申请号：US11921257
申请日：2006-05-31
申请人： Noritoshi Takamura , Satoru Tendo
发明人： Noritoshi Takamura , Satoru Tendo
IPC分类号： F16F1/06 , F01L3/10
CPC分类号： F16F1/06 , F01L1/462 , F01L3/10
摘要： A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end.A coil end 11 is shifted in a diametral outer or inner direction of a coil spring relative to the first turn 13, to form a vertical gap between the coil end 11 and the first turn 13 in a free state without load on the coil spring. Due to the gap, the coil spring including the coil end 11 and first turn 13 can be entirely processed by shot peening as well as the remaining portion. The first turn 13 receives a combination of torsional stress and Hertzian stress (contact stress). Since the coil end 11 that receives high Hertzian stress is shifted in a diametral outer or inner direction of the coil spring relative to the first turn 13, a contact point on the first turn 13 is shifted in the diametral outer or inner direction to reduce the torsional stress on the first turn 13. The shift and gap formed between the coil end 11 and the first turn 13 are effective to prevent excessive bending stress and breakage of the coil end 11 when the coil end 11 and first turn 13 are repeatedly engaged and disengaged in the gap.
摘要翻译：螺旋弹簧在第一匝上减少赫兹应力，并在线圈端减少弯曲应力。线圈端部11相对于第一匝13在螺旋弹簧的直径外侧或内侧方向上移动，以在线圈端部11和第一匝13之间形成在线圈弹簧上无负载的自由状态下的垂直间隙。由于间隙，包括线圈端11和第一匝13的螺旋弹簧可以通过喷丸硬化以及剩余部分完全加工。第一回合13接受扭转应力和赫兹应力（接触应力）的组合。由于接受高赫兹应力的线圈端部11相对于第一匝13在螺旋弹簧的直径外侧或内侧方向上偏移，所以第一匝13上的接触点沿直径外侧或内侧方向偏移，第一匝13上的扭转应力13.线圈端部11和第一匝13之间形成的移动和间隙有效地防止线圈端部11和第一匝13反复接合时线圈端部11的过度的弯曲应力和断裂，并且脱离了差距。

3. 发明授权

US08007716B2 Steel wire for high strength spring excellent in workability and high strength 有权
标题翻译：用于高强度弹簧的钢丝绳，加工性和弹簧强度高
公开(公告)号：US08007716B2
公开(公告)日：2011-08-30
申请号：US10549753
申请日：2004-03-25
申请人： Sumie Suda , Nobuhiko Ibaraki , Noritoshi Takamura , Naoki Terakado , Satoru Tendo , Tadayoshi Fujiwara , Tetsuo Jinbo
发明人： Sumie Suda , Nobuhiko Ibaraki , Noritoshi Takamura , Naoki Terakado , Satoru Tendo , Tadayoshi Fujiwara , Tetsuo Jinbo
IPC分类号： C22C38/18 , C22C38/00 , C23C8/26
CPC分类号： C22C38/46 , C22C38/02 , C22C38/04 , C22C38/34 , C22C38/44
摘要： A steel wire has tempered martensite, comprises, as essential components, by mass, C: 0.53 to 0.68%; Si: 1.2 to 2.5%; Mn: 0.2 to 1.5%; Cr: 1.4 to 2.5%; Al: 0.05% or less; further comprises, as a selective component, Ni: 0.4% or less; V: 0.4% or less; Mo: 0.05 to 0.5%; or Nb: 0.05 to 0.5%; and further comprises remainder essentially consisting of Fe and inevitable impurities, wherein the grain size number of prior austenite is 11.0 or larger, and the proof stress ratio (σ0.2/σB), namely, a ratio of 0.2% proof stress (σ0.2) to tensile strength (σB) is 0.85 or lower. Satisfying the above requirements makes it possible to produce a steel wire for high-strength spring excellent both in workability (cold workability), and in sag resistance and fatigue properties.
摘要翻译：钢丝具有回火马氏体，以质量计C为0.53〜0.68％为必要成分。 Si：1.2〜2.5％ Mn：0.2〜1.5％ Cr：1.4〜2.5％ Al：0.05％以下; 进一步包含Ni：0.4％以下的选择性组分; V：0.4％以下; Mo：0.05〜0.5％或Nb：0.05〜0.5％并且还包含基本上由Fe和不可避免的杂质组成的剩余部分，其中原奥氏体的晶粒数为11.0以上，并且证明应力比（＆Sgr 0.2 /＆Sgr; B），即0.2％屈服应力＆sgr; 0.2）拉伸强度（＆amp; B）为0.85以下。满足上述要求，可以生产出在加工性（冷加工性）以及抗下垂性和疲劳性方面优异的高强度弹簧钢丝。

4. 发明授权

US07766312B2 Coil spring 有权
标题翻译：线圈弹簧
公开(公告)号：US07766312B2
公开(公告)日：2010-08-03
申请号：US11921257
申请日：2006-05-31
申请人： Noritoshi Takamura , Satoru Tendo
发明人： Noritoshi Takamura , Satoru Tendo
IPC分类号： F16F1/02
CPC分类号： F16F1/06 , F01L1/462 , F01L3/10
摘要： A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end.A coil end 11 is shifted in a diametral outer or inner direction of a coil spring relative to the first turn 13, to form a vertical gap between the coil end 11 and the first turn 13 in a free state without load on the coil spring. Due to the gap, the coil spring including the coil end 11 and first turn 13 can be entirely processed by shot peening as well as the remaining portion. The first turn 13 receives a combination of torsional stress and Hertzian stress (contact stress). Since the coil end 11 that receives high Hertzian stress is shifted in a diametral outer or inner direction of the coil spring relative to the first turn 13, a contact point on the first turn 13 is shifted in the diametral outer or inner direction to reduce the torsional stress on the first turn 13. The shift and gap formed between the coil end 11 and the first turn 13 are effective to prevent excessive bending stress and breakage of the coil end 11 when the coil end 11 and first turn 13 are repeatedly engaged and disengaged in the gap.
摘要翻译：螺旋弹簧在第一匝上减少赫兹应力，并在线圈端减少弯曲应力。线圈端部11相对于第一匝13在螺旋弹簧的直径外侧或内侧方向上移动，以在线圈端部11和第一匝13之间形成在线圈弹簧上无负载的自由状态下的垂直间隙。由于间隙，包括线圈端11和第一匝13的螺旋弹簧可以通过喷丸硬化以及剩余部分完全加工。第一回合13接受扭转应力和赫兹应力（接触应力）的组合。由于接受高赫兹应力的线圈端部11相对于第一匝13在螺旋弹簧的直径外侧或内侧方向上偏移，所以第一匝13上的接触点沿直径外侧或内侧方向偏移，第一匝13上的扭转应力13.线圈端部11和第一匝13之间形成的移动和间隙有效地防止线圈端部11和第一匝13反复接合时线圈端部11的过度的弯曲应力和断裂，并且脱离了差距。

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