专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2966186A4 STRENGTH MEMBER AND MANUFACTURING METHOD THEREFOR 审中-公开
标题翻译：度元件及其制造方法
公开(公告)号：EP2966186A4
公开(公告)日：2016-11-23
申请号：EP14760929
申请日：2014-03-07
申请人： NHK SPRING CO LTD
发明人： KUROKAWA SHIMPEI , SUZUKI TAKESHI , SHIBAIRI KOSUKE
IPC分类号： C22C38/00 , C21D7/06 , C21D7/10 , C21D9/02 , C22C38/34 , F16F1/02
CPC分类号： C21D7/06 , C21D1/20 , C21D7/10 , C21D9/02 , C21D2211/002 , C21D2211/004 , C22C38/00 , C22C38/34
摘要： A strength member and a manufacturing method thereof in which settling resistance and yield strength can be substantially improved without reducing cost advantages or adding substantial process changes, is provided. A strength member comprises, by mass %, 0.5 to 0.7 % of C, 1.0 to 2.0 % of Si, 0.1 to 1.0 % of Mn, 0.1 to 1.0 % of Cr, 0.035 % or less of P, 0.035 % or less of S, and the balance of Fe and inevitable impurities, wherein an area ratio of bainite is 65 % or more, and an average dislocation density of a freely selected cross section is 2.0 × 10 16 m -2 or less.

2. 发明公开

EP3121464A4 FASTENING MEMBER, AND ROD-SHAPED MEMBER FOR FASTENING MEMBER 有权
公开(公告)号：EP3121464A4
公开(公告)日：2017-10-25
申请号：EP15764209
申请日：2015-03-20
申请人： NHK SPRING CO LTD , TOPURA KK
发明人： KAZAMA TOSHIO , SUZUKI TAKESHI , MORI SHIGETO
IPC分类号： F16B35/00 , C22C21/06 , C22C21/10 , F16B19/06 , F16B33/00 , F16B33/06
CPC分类号： F16B33/00 , C22C21/06 , C22C21/10 , F16B33/06
摘要： A fastening member includes a first alloy portion and a second alloy portion. The first alloy portion is made of an aluminum alloy including 0.005 wt% to 5.0 wt% zinc and 0.6 wt% to 2.0 wt% magnesium and is provided to a part that comes into contact with at least one of a plurality of members serving as a fastening target. The second alloy portion is made of an aluminum alloy including more than 2.0 wt% and 5.0 wt% or less magnesium and more than 5.0 wt% and 10 wt% or less zinc and is joined to the first alloy portion.

3. 发明公开

EP2548976A4 SPRING STEEL AND SURFACE TREATMENT METHOD FOR STEEL MATERIAL 审中-公开
标题翻译：弹簧钢表面处理工艺的钢材
公开(公告)号：EP2548976A4
公开(公告)日：2014-10-01
申请号：EP11756438
申请日：2011-03-18
申请人： NHK SPRING CO LTD
发明人： SUZUKI TAKESHI , ONO YOSHIKI , KUROKAWA SHIMPEI
IPC分类号： C21D6/00 , C21D1/06 , C21D1/18 , C21D1/76 , C21D9/02 , C21D9/04 , C22C38/00 , C22C38/02 , C22C38/04 , C23C8/26 , C23C8/32 , C23C8/80
CPC分类号： C23C8/26 , C21D1/06 , C21D1/18 , C21D1/76 , C21D6/005 , C21D6/008 , C21D9/02 , C21D9/04 , C22C38/02 , C22C38/04 , C23C8/32 , C23C8/80

4. 发明公开

EP2559781A4 SPRING AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：弹簧及其制造方法
公开(公告)号：EP2559781A4
公开(公告)日：2014-12-10
申请号：EP11768700
申请日：2011-03-23
申请人： NHK SPRING CO LTD
发明人： SUZUKI TAKESHI , ONO YOSHIKI , KUROKAWA SHIMPEI
IPC分类号： C22C38/00 , C21D1/06 , C21D7/06 , C21D9/02 , C22C38/04 , C23C8/32
CPC分类号： C23C8/32 , C21D1/06 , C21D1/25 , C21D7/06 , C21D9/02 , C21D2211/001 , C21D2211/008 , C22C38/02 , C22C38/04 , C23C8/80

5. 发明公开

EP2412840A4 HIGH-STRENGTH AND HIGH-DUCTILITY STEEL FOR SPRING, METHOD FOR PRODUCING SAME, AND SPRING 有权
标题翻译：高强度和高导电性弹簧钢，工艺用于生产春季和物品
公开(公告)号：EP2412840A4
公开(公告)日：2014-11-19
申请号：EP10755842
申请日：2010-03-08
申请人： NHK SPRING CO LTD
发明人： SUZUKI TAKESHI , ONO YOSHIKI
IPC分类号： C22C38/34 , C21D6/00 , C21D9/02 , F16F1/02
CPC分类号： C21D9/02 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/04 , C22C38/18 , C22C38/34 , Y02P10/212 , Y10S148/908

6. 发明公开

EP2682493A4 SPRING AND MANUFACTURING METHOD THEREOF 有权
标题翻译：弹簧及其制造方法
公开(公告)号：EP2682493A4
公开(公告)日：2014-08-27
申请号：EP12755633
申请日：2012-03-01
申请人： NHK SPRING CO LTD
发明人： SUZUKI TAKESHI , ONO YOSHIKI , KUROKAWA SHIMPEI
IPC分类号： B21F35/00 , C21D7/06 , C21D9/02 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/34 , F16F1/02 , F16F1/06
CPC分类号： F16F1/021 , B21F35/00 , C21D7/06 , C21D9/02 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/34 , F16F1/06 , Y10T29/49609

7. 发明公开

EP2602350A4 SPRING AND MANUFACTURE METHOD THEREOF 有权转让
标题翻译： FEDER UND HERSTELLUNGSVERFAHREN DAVON
公开(公告)号：EP2602350A4
公开(公告)日：2015-06-24
申请号：EP11814765
申请日：2011-08-04
申请人： NHK SPRING CO LTD
发明人： SUZUKI TAKESHI , ONO YOSHIKI , KUROKAWA SHIMPEI , SHIBAIRI KOSUKE
IPC分类号： C22C38/18 , B24C1/10 , C21D1/18 , C21D7/06 , C21D8/06 , C21D9/02 , C22C38/02 , C22C38/04 , F16F1/02 , F16F1/06
CPC分类号： F16F1/021 , B24C1/10 , C21D1/18 , C21D7/06 , C21D8/065 , C21D9/02 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/18
摘要： A spring with superior fatigue resistance and a production method therefor are provided by decreasing the material cost and simplifying the production process. The spring consists of, by mass %, 0.5 to 0.7 % of C, 1.0 to 2.0 % of Si, 0.1 to 1.0 % of Mn, 0.1 to 1.0 % of Cr, not more than 0.035 % of P, not more than 0.035 % of S, and the balance of Fe and inevitable impurities. The spring has a structure including not less than 65 % of bainite and 4 to 13 % of residual austenite by area ratio in a cross section, and the residual austenite contains carbon at an average concentration of 0.65 to 1.7 %. The spring has a compressive residual stress layer in a cross section from a surface to a depth of 0.35 mm to D/4, in which D (mm) in a circle-equivalent diameter of the cross section. The compressive residual stress layer has maximum compressive residual stress of 800 to 2000 MPa. The spring has a center portion with hardness of 550 to 650 HV in a cross section and has a high hardness layer with greater hardness than the center portion by 50 to 500 HV from a surface to a depth of 0.05 to 0.3 mm.
摘要翻译：通过降低材料成本并简化生产过程，提供了具有优异的耐疲劳性的弹簧及其制造方法。弹簧以质量％计含有C：0.5〜0.7％，Si：1.0〜2.0％，Mn：0.1〜1.0％，Cr：0.1〜1.0％，P：0.035％以下，0.035％以下的S，余量为Fe和不可避免的杂质。弹簧的截面积为贝氏体不少于65％，残余奥氏体的面积比为4〜13％，残留奥氏体含有平均浓度为0.65〜1.7％的碳。弹簧在从表面到深度为0.35mm至D / 4的截面中具有压缩残余应力层，其中横截面的圆当量直径为D（mm）。压缩残余应力层的最大压缩残余应力为800〜2000MPa。该弹簧具有截面硬度为550至650HV的中心部分，并且具有从表面到深度为0.05至0.3mm的高于中心部分的硬度高达50至500HV的高硬度层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式