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    Method for manufacturing surface-treated metal titanium material or titanium alloy material, and surface treatment material
    12.
    发明专利
    Method for manufacturing surface-treated metal titanium material or titanium alloy material, and surface treatment material 有权
    表面处理金属钛材料或钛合金材料及表面处理材料的制造方法

    公开(公告)号：JP2014162956A

    公开(公告)日：2014-09-08

    申请号：JP2013035311

    申请日：2013-02-26

    Applicant: Showa:Kk ,  株式会社昭和 ,  Mori Kosan Co Ltd ,  森興産株式会社

    Inventor： TAKAYASU TERUKI ,  ONODA KINJI ,  MORI SHINGO

    IPC: C23C8/34 ,  C25D11/06 ,  C25D11/16 ,  C25D11/24

    CPC classification number: C23C8/10 ,  B01J21/063 ,  B01J35/004 ,  C10M103/04 ,  C10M103/06 ,  C10M2201/053 ,  C10M2201/0623 ,  C23C8/24 ,  C23C8/34 ,  C23C28/042 ,  C23F17/00 ,  C25D7/00 ,  C25D11/26 ,  H01G9/2031

    Abstract: PROBLEM TO BE SOLVED: To manufacture a material useful as an abrasion resistant material, a photocatalytic material exhibiting high performance, a material for photoelectric conversion elements and the like, without adopting a complicated process and troublesome handling which are problems in the conventional art.SOLUTION: Provided is a method for manufacturing a surface-treated metal titanium material or a titanium alloy material, the method including the steps of: (1) forming titanium nitride on a surface of the metal titanium; and (2) heating, in an oxidative atmosphere, the metal titanium material obtained in step (1) having titanium nitride formed on the surface thereof. The method also includes, between the steps (1) and (2), a step of forming oxidized film on titanium by performing anode oxidation on the metal titanium material obtained in step (1) having titanium nitride formed on the surface thereof, in an electrolyte having no etching property against titanium. Further, a surface treatment material is provided.

    Abstract translation: 要解决的问题：为了制造用作耐磨材料的材料，表现出高性能的光催化材料，光电转换元件的材料等，而不采用常规技术中的问题的复杂工艺和麻烦的处理。 ：提供一种表面处理金属钛材料或钛合金材料的制造方法，其特征在于，包括以下步骤：（1）在金属钛的表面形成氮化钛; 和（2）在氧化气氛中加热在其表面上形成有氮化钛的步骤（1）中获得的金属钛材料。 该方法还包括步骤（1）和（2）之间的步骤，通过在其表面上形成有氮化钛的步骤（1）中获得的金属钛材料上进行阳极氧化，在钛上形成氧化膜， 不具有钛蚀刻性能的电解液。 此外，提供表面处理材料。

    Screw joint for pipe
    13.
    发明专利
    Screw joint for pipe 有权
    螺旋管接头

    公开(公告)号：JP2013087829A

    公开(公告)日：2013-05-13

    申请号：JP2011227665

    申请日：2011-10-17

    Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

    Inventor： YOSHIKAWA MASAKI ,  NAGAHAMA TAKUYA ,  CHIKATSUNE HIROSHI ,  TAKANO JUN ,  KAWAI TAKAMASA ,  UEDA MASATERU ,  TAKAHASHI KAZUNARI ,  MORIOKA NOBUHIKO

    IPC: F16L15/04

    CPC classification number: F16L15/004 ,  C10M103/04 ,  C10M171/00 ,  C10M2201/053 ,  C10N2210/01 ,  C10N2210/04 ,  C10N2210/06 ,  C10N2230/06 ,  E21B17/042

    Abstract: PROBLEM TO BE SOLVED: To provide a screw joint for a steel pipe, which is a radial seal-type joint and which combines excellent galling resistance and sealability.SOLUTION: In the screw joint for the pipe, plating with a Vickers hardness of 310 or higher is applied to an inner surface of a box, equivalent to a screw part and a seal part of the box. In the case where D represents a seal diameter defined by an outside diameter of a pin at a sealing point as a part on an outer peripheral surface of a pin-side nose part firstly coming into contact with an inner peripheral surface of a box-side nose part in screw connection and where δ represents an interference amount defined by a diameter reduction amount when the seal point is diameter-reduced by the box, a seal interference amount ratio in the circumferential direction of the pipe in the seal part, which is computed by δ/D, is 0.002 or more.

    Abstract translation: 要解决的问题：提供一种用于作为径向密封型接头的钢管的螺纹接头，其结合了优异的耐磨损性和密封性。

    解决方案：在用于管道的螺纹接头中，维氏硬度为310或更高的电镀施加到盒的内表面，相当于盒的螺纹部分和密封部分。 在D表示由作为销侧鼻部的外周面的一部分的密封点处的销的外径确定的密封直径首先与盒侧的内周面接触的情况下 螺钉连接的前端部，δ表示当密封点被箱减小时由直径减小量限定的干涉量，密封部中的管的圆周方向的密封干涉量比，计算出 δ/ D为0.002以上。 版权所有（C）2013，JPO＆INPIT

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