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    Spring steel wire rod excellent in decarburization resistance and wire drawing workability and method for producing same
    4.
    发明授权
    Spring steel wire rod excellent in decarburization resistance and wire drawing workability and method for producing same 有权
    耐脱碳性和拉丝加工性优异的弹簧钢线材及其制造方法

    公开(公告)号：US09005378B2

    公开(公告)日：2015-04-14

    申请号：US12192437

    申请日：2008-08-15

    申请人： Takuya Kochi ,  Shogo Murakami ,  Takeshi Kuroda ,  Hiromichi Tsuchiya

    发明人： Takuya Kochi ,  Shogo Murakami ,  Takeshi Kuroda ,  Hiromichi Tsuchiya

    IPC分类号： C22C38/18

    CPC分类号： C22C38/18

    摘要： Disclosed is a spring steel wire rod that comprises C in a range of 0.35 to 0.65% (mass %, the same applies to respective elements described hereinafter), Si in a range of 1.4 to 2.2%, Mn in a range of 0.10 to 1.0%, Cr in a range of 0.1 to 2.0%, P not more than 0.025% (0% excluded), and S not more than 0.025% (0% excluded), balance comprising iron, and unavoidable impurities, wherein an average grain size Dc of a central part of the steel wire rod is not more than 80 μm while an average grain size Ds of a surface layer part of the steel wire rod is not less than 3.0 μm.

    摘要翻译： 公开了一种弹簧钢线材，其包含在0.35至0.65％范围内的C（质量％，同样适用于下文所述的元素），Si在1.4至2.2％的范围内，Mn在0.10至1.0的范围内 ％，Cr为0.1〜2.0％，P为0.025％以下（不包括0％），S为0.025％以下（0％除外），余量为铁和不可避免的杂质，平均粒径 钢线材的中心部的Dc为80μm以下，钢线材的表层部的平均粒径Ds为3.0μm以上。

    Fixing member and a fixing structure for vehicle part
    7.
    发明授权
    Fixing member and a fixing structure for vehicle part 有权
    固定件和车辆部件固定结构

    公开(公告)号：US07300089B2

    公开(公告)日：2007-11-27

    申请号：US10957741

    申请日：2004-10-05

    申请人： Takeshi Kuroda

    发明人： Takeshi Kuroda

    IPC分类号： B60R13/01 ,  F16B13/04

    CPC分类号： B60R13/0206 ,  Y10T24/309

    摘要： A fixing member includes a base portion having an opening portion at side surfaces thereof, a pair of flange portions protruding from a free end portion of the base portion, at least one elastic portion perpendicularly extending from a lower surface of each flange portion toward within the opening portion of the base portion, and at least one pair of engagement portions protruding from inner surfaces of the base portion. The inner surfaces of the base portion are opposed to each other. When the fixing member for fixing car interior material to a vehicle body is engaged with a boss member, the elastic portion presses against both sides of the boss portion by its distal end portion of the elastic portion.

    摘要翻译： 固定构件包括在其侧表面具有开口部的基部，从基部的自由端部突出的一对凸缘部，从每个凸缘部的下表面垂直延伸的至少一个弹性部， 基部的开口部，以及从基部的内表面突出的至少一对接合部。 基部的内表面彼此相对。 当用于将车辆内部材料固定到车身的固定构件与凸起构件接合时，弹性部分通过其弹性部分的远端部分压靠凸台部分的两侧。

    Hot milled wire rod excelling in wire drawability and enabling avoiding heat treatment before wire drawing
    9.
    发明申请
    Hot milled wire rod excelling in wire drawability and enabling avoiding heat treatment before wire drawing 有权
    热拔丝线材具有优良的拉丝性能，能够避免拉丝前的热处理

    公开(公告)号：US20060048864A1

    公开(公告)日：2006-03-09

    申请号：US10528263

    申请日：2003-09-24

    申请人： Mamoru Nagao ,  Takeshi Kuroda ,  Takaaki Minamida

    发明人： Mamoru Nagao ,  Takeshi Kuroda ,  Takaaki Minamida

    IPC分类号： C22C38/00

    CPC分类号： C22C38/02 ,  C21D8/06 ,  C21D9/5732 ,  C21D2211/009 ,  C22C38/04 ,  C22C38/40

    摘要： A hot-rolled wire rod: the wire rod being a hot-rolled wire rod 5.0 mm or more in diameter, containing in mass C: 0.6 to 1.0%, Si: 0.1 to 1.5%, Mn: 0.3 to 1.0%, P: 0.02% or less, and S: 0.02% or less; not less than 90% of the wire rod in area percentage being composed of a pearlite structure; and the mechanical properties of the wire rod 4 m in length satisfying the following expressions (1) to (4), (1) TS*−30≦Average value of tensile strength (TSAV in MPa)≦TS*+30, where, TS*=400×{[C]+([Mn]+[Si])/5}+670 and the elements in square brackets [ ] in the equality mean the contents of relevant elements in percentage, (2) Standard deviation of tensile strength (TSσ)≦30 MPa, (3) Average value of reduction of area (RAAV)>35%, (4) Standard deviation of reduction of area (RAσ) ≦4%. A hot-rolled wire rod according to the present invention is incomparably excellent in wire drawability and brakes less frequently than a conventional wire rod even when it is processed as hot-rolled with heat treatment such as patenting treatment omitted.

    摘要翻译： 热轧线材：线材为直径5.0mm以上的热轧线材，质量C：0.6〜1.0％，Si：0.1〜1.5％，Mn：0.3〜1.0％，P： 0.02％以下，S：0.02％以下。 不少于90％的线材面积百分比由珠光体组织构成; 以及长度满足下述式（1）〜（

    Fixing member and a fixing structure for vehicle part
    10.
    发明申请
    Fixing member and a fixing structure for vehicle part 有权
    固定件和车辆部件固定结构

    公开(公告)号：US20050116485A1

    公开(公告)日：2005-06-02

    申请号：US10957741

    申请日：2004-10-05

    申请人： Takeshi Kuroda

    发明人： Takeshi Kuroda

    IPC分类号： B60R13/02 ,  B60R13/00

    CPC分类号： B60R13/0206 ,  Y10T24/309

    摘要： A fixing member includes a base portion having an opening portion at side surfaces thereof, a pair of flange portions protruding from a free end portion of the base portion, at least one elastic portion perpendicularly extending from a lower surface of each flange portion toward within the opening portion of the base portion, and at least one pair of engagement portions protruding from inner surfaces of the base portion. The inner surfaces of the base portion are opposed to each other. When the fixing member for fixing car interior material to a vehicle body is engaged with a boss member, the elastic portion presses against both sides of the boss portion by its distal end portion of the elastic portion.

    摘要翻译： 固定构件包括在其侧表面具有开口部的基部，从基部的自由端部突出的一对凸缘部，从每个凸缘部的下表面垂直延伸的至少一个弹性部， 基部的开口部，以及从基部的内表面突出的至少一对接合部。 基部的内表面彼此相对。 当用于将车辆内部材料固定到车身的固定构件与凸起构件接合时，弹性部分通过其弹性部分的远端部分压靠凸台部分的两侧。