公开(公告)号：JP2012030348A

公开(公告)日：2012-02-16

申请号：JP2011121310

申请日：2011-05-31

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

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

IPC: B23G1/22 ,  F16L15/04

Abstract: PROBLEM TO BE SOLVED: To reduce screw joint manufacturing cost, by reducing chaser preparing man-hours more than conventional man-hours, by keeping a screw clearance constant, even if a screw pitch is changed.SOLUTION: When applying screw cutting work by using a chaser for a pipe body 1A for a female screw and a pipe body 3A for a male screw used as a raw material of a screw joint for a steel pipe, the chaser of any one blade shape among a recessed blade shape 2B and a projecting blade shape 2A is used for the pipe body 3A for the male screw, and the chaser of the other blade shape is used for the pipe body 1A for the female screw, respectively.

Abstract translation: 要解决的问题：为了减少螺杆接头的制造成本，通过将螺杆间隙保持恒定，即使螺杆间距发生变化，通过比常规工时更少的追击器准备工时。 解决方案：通过使用用于内螺纹的管体1A的冲击器和用作钢管螺纹接头的原材料的外螺纹的管体3A进行螺纹切削加工时，任何 凹形刀片形状2B和突出形状2A中的一个刀片形状用于阳螺纹用的管体3A，另一个刀片形状的追击器分别用于内螺纹的管体1A。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010179348A

公开(公告)日：2010-08-19

申请号：JP2009026847

申请日：2009-02-09

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

Inventor： KAWAI TAKAMASA ,  TATENO JUNICHI ,  YAMADA MAKOTO ,  TOKUNAGA MUNEYASU ,  TATENO BUNGO

IPC: B21B15/00 ,  B21B1/22

Abstract: PROBLEM TO BE SOLVED: To provide a method of stably manufacturing a cold-rolled steel sheet with good quality by preventing a push-in flaw due to properties of an edge part of a product and trimming after cold rolling, and also to provide an apparatus of manufacturing the same.
SOLUTION: A pair of upper and lower circular rotary blades are pressed to a predetermined depth from the above and the below with respect to an edge part of a hot-rolled steel sheet before pickling. Shearing is applied to the edge part in an unseparated state. The edge parts are separated through pinching by narrow width rolls installed at the respective edge parts and capable of pinching only the edge parts, and then pickling and cold rolling by a rolling mill having a work roll with a diameter of ≥300 mm are applied.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种通过防止由于产品的边缘部分的性质和冷轧后的修整而引起的推入缺陷而稳定地制造具有良好品质的冷轧钢板的方法，并且还提供 提供制造该装置的装置。 解决方案：一对上下圆形的旋转叶片在酸洗前相对于热轧钢板的边缘部分从上下按压到预定的深度。 剪切以未分离状态施加到边缘部分。 边缘部分通过夹在相应边缘部分上的窄宽度辊分开，并且仅能够夹持边缘部分，然后施加具有直径≥300mm的工作辊的轧机进行酸洗和冷轧。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010179316A

公开(公告)日：2010-08-19

申请号：JP2009022357

申请日：2009-02-03

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

Inventor： KAWAI TAKAMASA ,  TATENO JUNICHI ,  YAMADA MAKOTO ,  TOKUNAGA MUNEYASU ,  TATENO BUNGO

IPC: B21B15/00 ,  B21B1/22 ,  B23D19/06

Abstract: PROBLEM TO BE SOLVED: To provide a method for stably manufacturing a cold-rolled steel sheet with good quality by preventing push-in flaw due to properties of specifically a product edge part and trimming after cold rolling, and also to provide an equipment used for the same.
SOLUTION: A pair of upper and lower circular rotary blades are pressed to a predetermined depth from the above and below with respect to the edge part of the steel sheet before pickling. Shearing is applied to the edge part in an unseparated state. Next the edge parts are separated by pinching with narrow width rolls arranged at the respective edge parts and capable of pinching only the edge parts, and then the pickling and the cold rolling are applied.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过防止由于特定的产品边缘部分的特性和冷轧后的修整而引起的推入缺陷而稳定地制造具有良好质量的冷轧钢板的方法，并且还提供一种 设备用于相同。 解决方案：在酸洗之前，将一对上下圆形旋转刀片相对于钢板的边缘部分从上下按压至预定深度。 剪切以未分离状态施加到边缘部分。 接下来，边缘部分通过夹在布置在各个边缘部分的窄宽度辊并且仅能够仅夹持边缘部分的夹持分开，然后施加酸洗和冷轧。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2015001253A

公开(公告)日：2015-01-05

申请号：JP2013125332

申请日：2013-06-14

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

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

IPC: F16L15/04

CPC classification number: E21B17/042 ,  F16L15/004 ,  F16L15/06

Abstract: 【課題】ショルダ部を有するねじ継手において、ピン管端側のねじ部のロードフランク面における集中荷重を低減し、耐焼付き性に優れた油井管用ねじ継手を得る。【解決手段】プレミアムジョイントにおいて、雌ねじピッチ20Bを、ボックス1端側のねじ端部からねじ部全長の1/2位置よりボックス中央側寄りにとったピッチ変更位置PCPまでは雄ねじピッチ20Pと同じ値とし、前記ピッチ変更位置PCPで雄ねじピッチ未満の値に変更するピッチチェンジにより、ねじギャップ10を、前記ピッチ変更位置PCPからボックス中央側のねじ端部まで漸減させ、最終的に前記ピッチチェンジより前のねじギャップ10の0.2倍以上0.8倍以下の値とした。【選択図】図1

Abstract translation: 要解决的问题：在具有肩部的螺纹接头中，提供一种耐咬合性优异的油井管用螺纹接头，能够降低针管侧端部的螺纹部的负载坦克面的集中负荷。 解决方案：在高档接头中，内螺纹节距20B与相对于螺钉部分的整个长度的中间位置相对于靠近箱体中心侧的间距变化位置PCP的外螺纹间距20P相同 螺栓端部在箱体1的端部侧，并且通过在间距变化位置PCP处变化为小于外螺纹间距的值的间距变化，螺纹间隙10从间距变化位置PCP逐渐减小到螺纹端 部分在箱体中心侧，以便在间距变化之前最终变为螺距2000的0.2倍以上0.8倍以下。

公开(公告)号：JP2014013052A

公开(公告)日：2014-01-23

申请号：JP2012150114

申请日：2012-07-04

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

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

IPC: F16L15/04

CPC classification number: F16L15/00 ,  E21B17/042 ,  E21B17/08 ,  F16L15/004 ,  F16L15/06 ,  F16L2201/40

Abstract: PROBLEM TO BE SOLVED: To provide a means capable of ensuring air-tightness by preventing local plastic deformation of a pin nose during compression load being applied when a shoulder angle θ is 0° or more.SOLUTION: A box side lip length L as a pipe axial distance from a pin nose top end corresponding point P of a box member 1 to a load surface 18b of a screw thread 50 referable to lip that is a female screw thread most proximate to the pin nose top end corresponding point P is set 300 times or more of an insertion surface gap δ between an insertion surface 19b of the female screw thread on a position to which the female screw thread retreats two rounds or more from the screw thread 50 referable to lip and an insertion surface 19a of a male screw thread facing the insertion surface 19b upon fastening, that is, L≥300×δ.

Abstract translation: 要解决的问题：提供一种能够通过在肩部角度和角度施加压缩载荷期间防止针鼻部局部塑性变形来确保气密性的装置; 为0°以上。解决方案：作为与鼻部顶端的管端轴向距离的箱侧唇长度L，将盒构件1的对应点P与螺纹50的负载面18b相对应，该唇部是指作为女性 最靠近销鼻端部顶端对应点P的螺纹线被设定为在内螺纹螺纹的插入表面19b在阴螺纹螺纹从两个或更多个后退两个或更多个位置的位置之间的插入表面间隙δ的300倍或更多 螺纹50可以指紧固时的唇部和外螺纹面向插入面19b的插入面19a，即L≥300×δ。

公开(公告)号：JP2012149760A

公开(公告)日：2012-08-09

申请号：JP2011101329

申请日：2011-04-28

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

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

IPC: F16L15/04

CPC classification number: E21B17/042 ,  F16L15/00 ,  F16L15/004 ,  F16L15/06

Abstract: PROBLEM TO BE SOLVED: To provide a pipe screw coupling increased in sealing properties, compression resistance and galling resistance.SOLUTION: A pin nose outer peripheral surface 30 forms a convex curve on the outside thereof in a cross section view in the axial direction. The convex curve has a curved shape wherein a compound-R curve N comprising a plurality of outwardly convex arcs that are connected in sequence and that have radii of curvature R that differ from each other at the generating line of a cylindrical section that is adjacent to a male screw section 5 is such that the radii of curvature R of the arcs increase with distance from the male screw section 5 and the line tangent to the connection point of an arc is the same as that of the arc connected to. The inner peripheral surface relative to the pin nose 30 of a box member 1 has a tapered surface 20 that interferes with the pin nose outer peripheral surface 30 when connecting with the pin member 3.

Abstract translation: 要解决的问题：提供一种提高密封性能，耐压缩性和耐磨损性的管螺纹联轴器。 解决方案：针鼻外周面30在轴向的截面图中在其外侧形成凸曲线。 凸曲线具有弯曲形状，其中化合物-R曲线N包括依次连接的多个向外凸起的弧，并且具有在与圆形截面相邻的圆柱形部分的生成线处彼此不同的曲率半径R 阳螺纹部分5使得弧的曲率半径R随着与阳螺纹部分5的距离而增加，并且与电弧连接点相切的直线与连接的弧的直线相同。 相对于盒构件1的针尖30的内周面具有锥形表面20，当与销构件3连接时，锥形表面20与插头外周表面30相互干扰。（C）2012，JPO＆INPIT

公开(公告)号：JP2012062495A

公开(公告)日：2012-03-29

申请号：JP2010205279

申请日：2010-09-14

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

Inventor： NARA MASAKATSU ,  ISHII TOSHIO ,  KAWAI TAKAMASA ,  TAKEBAYASHI KATSUHIRO ,  NAKANO HISASHI ,  SHIDARA EITARO

IPC: C21D9/673 ,  C21D1/26

Abstract: PROBLEM TO BE SOLVED: To provide a technology that is capable of reducing the occurrence of defects on a coil when annealing the coil, ensures productivity and is free of cost-related problems.SOLUTION: A coil annealing device 1 is equipped with a coil-supporting stage 7 that has a stage 15 on which a tip of the coil 9 laid sideways is placed and a stem that supports the stage 15. The stem is equipped with an outer stem wall 17 formed all around an outer periphery of a lower side of the stage 15 and an inner stem wall 19 formed inside the outer stem wall 17 at a prescribed distance from the outer stem wall 17.

Abstract translation: 要解决的问题：为了提供能够在退火线圈时减少线圈上的缺陷的发生的技术，确保生产率并且没有成本相关的问题。 线圈退火装置1配备有线圈支撑台7，线圈支撑台7具有在其上放置有侧面放置的线圈9的末端的阶段15和支撑台15的杆。杆配备有 形成在台架15的下侧的外周的整个外壁壁17和形成在外杆壁17内部的与内杆壁17规定距离内的内杆壁19.权利要求（C ）2012，JPO＆INPIT

公开(公告)号：JP2011132575A

公开(公告)日：2011-07-07

申请号：JP2009293918

申请日：2009-12-25

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

Inventor： YASUHARA HIDEKO ,  TATENO BUNGO ,  KAWAI TAKAMASA ,  TATENO JUNICHI ,  YAMADA MAKOTO

IPC: C22C38/00 ,  B21B3/00 ,  B21B15/00 ,  C21D9/46 ,  C22C38/60

CPC classification number: C21D9/46 ,  C21D2201/03 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  Y02P10/212

Abstract: PROBLEM TO BE SOLVED: To provide a hot rolled steel sheet free from ear cracking, a cold rolled steel sheet free from ear cracking and having a sheet thickness of ≤0.2 mm, and their production methods.
SOLUTION: The hot rolled steel sheet comprises, by mass, 0.001 to 0.10% C, 0.005 to 0.80% Si, 0.01 to 2.0% Mn, 0.001 to 0.40% P, ≤0.10% S, 0.001 to 0.10% Al, ≤0.020% N, and the balance Fe with inevitable impurities, wherein the main phase structure consists of ferrite, and the average crystal grain size of the ferrite is 10 to 25 μm, and the aspect ratio of the ferrite crystal grains ( Nx/Ny) is 0.70 to 1.00. The cold rolled steel sheet is obtained by subjecting both the edge parts of the above hot rolled steel sheet to trimming treatment at >2 to

Abstract translation: 待解决的问题：为了提供一种没有耳部开裂的热轧钢板，没有耳部开裂并且板厚≤0.2mm的冷轧钢板及其制造方法。 解决方案：热轧钢板以质量计含有0.001至0.10％的C，0.005至0.80％的Si，0.01至2.0％的Mn，0.001至0.40％的P，≤0.10％的S，0.001至0.10％的Al， ≤0.020％N，余量为Fe与不可避免的杂质，主相结构由铁素体构成，铁素体的平均结晶粒径为10〜25μm，铁素体晶粒的长径比（Nx / Ny ）为0.70〜1.00。 冷轧钢板是通过对上述热轧钢板的边缘部进行两边缘部的2〜30mm的修整处理，然后以≥85％的冷拔进行冷轧而得到的。 版权所有（C）2011，JPO＆INPIT