公开(公告)号：MX374790B

公开(公告)日：2025-03-06

申请号：MX2018009994

申请日：2018-08-17

Applicant: JFE STEEL CORP

Inventor： SEKI HARUHIKO ,  TAKANO JUN ,  YOSHIKAWA MASAKI ,  UETA MASATERU ,  KAWAI TAKAMASA ,  KANAYAMA TARO ,  YONEYAMA TSUYOSHI

IPC: F16L15/04

Abstract: Se proporciona una junta roscada para tubería de pozo petrolero que posee suficiente capacidad de sellado cuando se aplica una presión externa a la junta roscada mediante la supresión de la deformación plástica de una porción de punta; y suficiente resistencia al desgaste por rozamiento. La suficiente resistencia al desgaste por rozamiento es proporcionada evitando que suceda el desgaste por rozamiento al momento del acoplamiento de la junta roscada durante la prueba de verificación realizada de acuerdo con ISO13679: 2002, incluso cuando la junta roscada para una tubería de pozo petrolero tiene un grosor pequeño. Los parámetros que incluyen los tamaños de la junta roscada en las posiciones de un punto de sellado y porciones de reborde satisfacen las siguientes fórmulas 1, 2, y Ls/Ln se establece en 0.2 a 0.6. (Ds12-Ds02)/( D12-D02 ) = 0.30 ..(fórmula 1) Tan? >(?D+d)/{2(Lt-Ls)} ..(fórmula 2)

公开(公告)号：SA516371438B1

公开(公告)日：2021-07-11

申请号：SA516371438

申请日：2016-06-30

Applicant: JFE STEEL CORP

Inventor： KAWAI TAKAMASA ,  NAGAHAMA TAKUYA ,  YONEYAMA TSUYOSHI ,  TAKANO JUN ,  TAKAHASHI KAZUNARI ,  UETA MASATERU ,  YOSHIKAWA MASAKI ,  SEKI HARUHIKO ,  SATO HIDEO ,  CHIKATSUNE HIROSHI

Abstract: يزودالاختراعالحاليوصلةملولبة threaded joint للمعداتالأنبوبيةسميكةالجدارللدولالمنتجةللزيتوالتييمكنأنتزودكلمنضمانالقدرةعلىمنعالتسرب sealability ومنعالتخدش galling علىحدسواءفيالحالةالتييكونفيهاضغطخارجيمسلطأيضاعلىالوصلةالملولبةبالإضافةإلىقوةضاغطةكبيرة. ويكونكلمنسطحجانبيللسان pin 3 يشكلجزءسداد 13 وسطحجانبيلصندوق box 1 يشكلجزءسداد 11 مشكلينعلىشكلسطحمنحنيمحدب convex curved surface وسطحمستدق tapered surface علىالترتيب. وفيمايتعلقباللسان 3،تبلغسماكةالسداد ts للسان 15 ملمأوأقل،ويبلغمتغيرالشكل shape parameter ts/D (D: القطرالخارجيلجزءلسانالأنبوبالخام) 0.045 أوأكثر،وتبلغنسبةطولاللولبالكامل L/t (L: طولاللولبالكاملللسان، t: سماكةالجدارلجزءلسانالأنبوبالخام) 4.0 أوأقل. الشكل 1

公开(公告)号：MY180510A

公开(公告)日：2020-12-01

申请号：MYPI2013003141

申请日：2012-02-24

Applicant: JFE STEEL CORP

Inventor： SONOBE OSAMU ,  NAGAHAMA TAKUYA ,  YOSHIKAWA MASAKI ,  TAKANO JUN ,  KAWAI TAKAMASA ,  TAKAHASHI KAZUNARI ,  CHIKATSUNE HIROSHI ,  UETA MASAKI

Abstract: Radial seal type threaded joints for steel pipes have still room for improvement in ensuring sealability in terms of the rigidity of the pin nose. Specifically, the outer circumferential surf ace of the nose ( 8) of the pin ( 3) has an outward convex curved shape, and the sealing surface of the box (1) has a tapered shape; and the cross- sectional area of the pin (3) at a seal point, sp that is a portion on the outer circumferential surface of the nose (8) of the pin (3), the portion first coming into contact with the sealing surf ace of the box ( 1) when threaded-joined, is 35% or more of the cross-sectional area of an original pipe portion corresponding to an unprocessed portion. Figure 1

公开(公告)号：AU2017338057B2

公开(公告)日：2020-04-09

申请号：AU2017338057

申请日：2017-09-13

Applicant: JFE STEEL CORP

Inventor： KAWAI TAKAMASA ,  KANAYAMA TARO ,  YOSHIKAWA MASAKI ,  TAKANO JUN ,  NAGAHAMA TAKUYA

IPC: F16L15/04

Abstract: Provided is a threaded joint for an oil well steel pipe having excellent sealing performance and compression resistance. The threaded joint has a pin 2 provided with a male screw 4, and a box 3 provided with a female screw 5 that screws together with the male screw 4. At an outer-circumferential seal section 9, a pin cross-sectional area S1 (mm

公开(公告)号：CA2977021C

公开(公告)日：2019-10-15

申请号：CA2977021

申请日：2016-03-28

Applicant: JFE STEEL CORP

Inventor： YOSHIKAWA MASAKI ,  TAKAHASHI KAZUNARI ,  KANAYAMA TARO ,  TAKANO JUN ,  KAWAI TAKAMASA ,  YONEYAMA TSUYOSHI

IPC: F16L15/04 ,  E21B17/08

Abstract: Provided is a threaded pipe joint that, when acted upon by a tensile load, does not break on the female thread-side of a first thread section of a second thread series that extends from an intermediate shoulder and reliably undergoes tensile rupture on the female thread-side of a first thread section of a first thread series, which is the original critical cross-section site. The threaded pipe joint is configured so that when the male and female threads of the intermediate shoulder are screwed together, the load flank-side thread gaps L1G and L2G of a first thread series, which is the radially inward thread series, and a second thread series, which is the radially outward thread series, on the two sides of the intermediate shoulder always satisfy the relationship L1G

公开(公告)号：BR112012033452A2

公开(公告)日：2016-12-13

申请号：BR112012033452

申请日：2011-06-22

Applicant: JFE STEEL CORP

Inventor： TAKANO JUN ,  TAKAHASHI KAZUNARI ,  YOSHIKAWA MASAKI ,  SONOBE OSAMU ,  KAWAI TAKAMASA ,  NAGAHAMA TAKUYA

IPC: F16L15/04

公开(公告)号：CA2846584C

公开(公告)日：2016-10-11

申请号：CA2846584

申请日：2012-10-16

Applicant: JFE STEEL CORP

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

IPC: F16L15/04

Abstract: [Object] To provide a threaded joint for pipes that is a radial seal type joint and that has both high galling resistance and high sealability. [Solution] In the threaded joint for pipes, a coating having a Vickers hardness greater than or equal to 310 is formed on a threaded portion of the box and an inner face of the box corresponding to a seal portion. The seal interference amount ratio .delta./D of the seal portion in a pipe circumferential direction is greater than or equal to 0.002, where D is a seal diameter defined as an outside diameter of the pin at a seal point that is a point on the outer peripheral face of the nose of the pin at which the outer peripheral face first comes into contact with the inner peripheral face of the nose of the box and .delta. is an interference amount defined as an amount by which the outside diameter at the seal point is reduced by the box when the pin and the box are threadedly connected with each other.

公开(公告)号：MX2015010625A

公开(公告)日：2015-12-15

申请号：MX2015010625

申请日：2013-12-18

Applicant: JFE STEEL CORP

Inventor： YOSHIKAWA MASAKI ,  TAKANOJUN ,  KAWAI TAKAMASA ,  TAKAHASHI KAZUNARI ,  CHIKATSUNE HIROSHI ,  UETA MASATERU ,  TAKUYA NAGAHAMA

IPC: F16L15/04

Abstract: Aunque un medio para suprimir la deformación de un sello de extremo macho se ha propuesto en la técnica relacionada, no se ha propuesto un método para resolver un problema causado por la deformación en un lado de la unión hembra. La presente invención proporciona una junta roscada para tuberías, caracterizada porque la relación 0.05 grados = ?sb - ?sp = 2.0 grados se satisface, donde ?sb es un ángulo de una superficie de inserción 21 de la rosca hembra en el lado de la unión hembra 1 con respecto a un plano perpendicular a un eje de la tubería, y ?sp es un ángulo de una superficie de inserción 20 de la rosca macho, que está de cara a la superficie de inserción 21 de la rosca hembra, en el lado del extremo macho 3 con respecto al plano perpendicular al eje de la tubería.

公开(公告)号：AU2012324340A1

公开(公告)日：2014-03-20

申请号：AU2012324340

申请日：2012-10-16

Applicant: JFE STEEL CORP

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

IPC: F16L15/04

Abstract: Provided is a threaded coupling for a steel pipe having excellent galling resistance and seal performance as a radial-seal type connector. With this threaded coupling a plating having a Vickers hardness of not less than 310 is applied to the screw portion of the box and the inner surface of the box corresponding to the seal portion, and the seal interference amount ratio of the seal part in the pipe circumferential direction is not less than 0.002 as calculated with δ/D, where D is the seal diameter, defined by the pin outer diameter at the seal point, which is the region on the outer circumferential surface of the nose part on the pin-side that first makes contact with the inner circumferential surface of the nose part on the box-side when the threaded engagement is established, and δ is the amount of interference as defined by the amount by which the diameter of the seal point is reduced when the diameter of the seal point is reduced by the box, when the threaded engagement is established.

公开(公告)号：AU2012232466A1

公开(公告)日：2013-09-12

申请号：AU2012232466

申请日：2012-02-24

Applicant: JFE STEEL CORP

Inventor： YOSHIKAWA MASAKI ,  NAGAHAMA TAKUYA ,  CHIKATSUNE HIROSHI ,  TAKANO JUN ,  KAWAI TAKAMASA ,  TAKAHASHI KAZUNARI ,  UETA MASATERU ,  SONOBE OSAMU

IPC: F16L15/04

Abstract: Provided is a screw joint for steel piping that exhibits excellent sealing properties even when subjected to a bending load. Specifically provided is a screw joint for steel piping in which a pin (3) and a box (1) are coupled by means of screw coupling, bringing the outer peripheral surface of the nose portion of the pin (8) and the inner peripheral surface of the nose portion of the box into metal to metal contact, this contact portion forming a seal portion (20). The load flank angle α of the screw portion (the screw coupling portion of a male screw (7) and a female screw (5)) is the load side and the torque shoulder angle &bgr; of a shoulder portion (12, 14) is the load side, and L/d