公开(公告)号：US4168190A

公开(公告)日：1979-09-18

申请号：US791213

申请日：1977-04-27

Applicant: Toshiyuki Eguchi ,  Yoshihiro Imoto ,  Kouji Kurose ,  Masanori Terasaki

Inventor： Toshiyuki Eguchi ,  Yoshihiro Imoto ,  Kouji Kurose ,  Masanori Terasaki

IPC: C21D6/00 ,  C21D9/50

CPC classification number: C21D6/002 ,  C21D9/50

Abstract: A method and apparatus for treating stainless steel material to reduce the carbon precipitation of the grain boundaries of the material as a result of temperature elevation due to welding, mechanical bending, or the like. The treatment includes the rapid heating of the material to the temperature at which the carbon will enter into solid solution followed by a rapid quenching of the heated material. Beneficial stress modifications are also achieved.

Abstract translation: 一种用于处理不锈钢材料以减少由于焊接，机械弯曲等导致的温度升高导致材料的晶界的碳析出的方法和装置。 处理包括将材料快速加热到碳将进入固溶体的温度，随后快速淬火加热的材料。 还实现了有益的应力改变。

公开(公告)号：US4195506A

公开(公告)日：1980-04-01

申请号：US918022

申请日：1978-06-22

Applicant: Shunpei Kawanami ,  Susumu Hanyo

Inventor： Shunpei Kawanami ,  Susumu Hanyo

IPC: B21D7/025 ,  B21D7/16 ,  B21D7/12

CPC classification number: B21D7/025

Abstract: The disclosure relates to a method of bending elongated materials such as pipe by applying a compressive primary bending force to the material at locations on either end of the portion of the material to be bent and locally stimulating bending of that portion of the material by the application of heat or a secondary bending force. The end portions of the materials are engaged by clamps, each clamp having an arm extending normal to the principle axis of the material. The compressive primary bend force is applied by exerting a force on locations on the arms displaced from the principal axis of the material, which force tends to draw the ends of the arms together.

Abstract translation: 本公开涉及一种通过在待弯曲材料部分的任一端上的位置处对材料施加压缩的初级弯曲力来弯曲细长材料（例如管）的方法，并且通过应用局部刺激该材料部分的弯曲 的热量或二次弯曲力。 材料的端部通过夹具接合，每个夹具具有垂直于材料主轴线延伸的臂。 通过对从材料的主轴偏移的臂上的位置施加力来施加压缩的初级弯曲力，该力倾向于将臂的端部拉在一起。

公开(公告)号：US4062216A

公开(公告)日：1977-12-13

申请号：US593961

申请日：1975-07-08

Applicant: Yukimitsu Hanamoto ,  Shigeki Unoki

Inventor： Yukimitsu Hanamoto ,  Shigeki Unoki

IPC: B21D7/025 ,  B21D7/16

CPC classification number: B21D7/162 ,  B21D7/025 ,  Y10S72/702

Abstract: This invention relates to methods and apparatus for accomplishing bending work on long metal materials such as pipe, bar and rod.

Abstract translation: 本发明涉及用于在诸如管，杆和杆的长金属材料上完成弯曲加工的方法和装置。

公开(公告)号：US4061005A

公开(公告)日：1977-12-06

申请号：US639195

申请日：1975-12-09

Applicant: Shunpei Kawanami ,  Yukimitsu Hanamoto

Inventor： Shunpei Kawanami ,  Yukimitsu Hanamoto

IPC: B21D7/025 ,  B21D7/16 ,  B21D9/00 ,  B21D9/18 ,  B21D7/12

CPC classification number: B21D7/162 ,  B21D7/025 ,  B21D9/00 ,  B21D9/18

Abstract: A method of continuously bending elongated materials may comprise engaging one portion of the elongated material with a guiding means and clamping a second portion of the elongated material in a clamping device driven to rotate with a movable axis of rotation perpendicular to a horizontal plane. A heated zone bounded by a cooled zone moving relative to the elongated material may be established in the material by suitable heating and cooling means disposed adjacent to the material. The elongated member may be driven to pass through the guiding means. Where a hollow elongated material is to be bent, a compressing means may be placed within the elongated material to inhibit deformation of the cross-section of the material. An apparatus for continuously bending elongated members may be comprised of plural means for performing the aforestated functions.

Abstract translation: 连续弯曲细长材料的方法可以包括将细长材料的一部分与导向装置接合，并将细长材料的第二部分夹紧在被驱动以与垂直于水平面的可旋转旋转轴线旋转的夹紧装置中。 由相对于细长材料移动的冷却区域限定的加热区域可以通过与材料相邻设置的合适的加热和冷却装置在材料中建立。 细长构件可以被驱动以通过引导装置。 在中空细长材料要弯曲的地方，压缩装置可以放置在细长材料内以抑制材料横截面的变形。 用于连续弯曲细长构件的装置可以由用于执行上述功能的多个装置组成。

公开(公告)号：US4694131A

公开(公告)日：1987-09-15

申请号：US738968

申请日：1985-05-29

Applicant: Toshio Ino ,  Tsukasa Maenosono ,  Kazuo Yoshida ,  Masanori Terasaki ,  Tetsusho Kuriwaki ,  Tadao Koga ,  Miharu Hirado

Inventor： Toshio Ino ,  Tsukasa Maenosono ,  Kazuo Yoshida ,  Masanori Terasaki ,  Tetsusho Kuriwaki ,  Tadao Koga ,  Miharu Hirado

IPC: B23K31/00 ,  C21D1/42 ,  C21D9/08 ,  C21D9/50 ,  H05B6/40

CPC classification number: C21D1/30 ,  C21D1/42 ,  C21D9/50 ,  Y02P10/253

Abstract: A heating method and heating apparatus for uniformly or substantially uniformly heating a predetermined portion of main and branch pipes including a welded joint therebetween of a main-and-branch-pipe assembly, thereby relieving the residual stress in the welded joint between the main and branch pipes. The defects and problems encountered in the conventional residual-stress-relief treatment processes can be substantially overcome such as complication in winding fabrication at the branch pipe which results in bad control of temperature; a mock-up test being needed for fabrication of an inductor; and existence of a non-heated zone resulting in unbalance of the stresses so that the effects of the residual stress-relief treatment are reduced.

Abstract translation: 一种用于对主支管的预定部分进行均匀或基本上均匀加热的加热方法和加热装置，包括主分支管组件之间的焊接接头，从而减轻主分支和分支管之间的焊接接头中的残余应力 管道。 在常规的残余应力消除处理过程中遇到的缺点和问题可以基本上克服，例如在分支管上卷绕制造中的并发症，导致温度控制不良; 需要制造电感器的模拟测试; 并且存在导致应力不平衡的非加热区域，使得残余应力消除处理的效果降低。

公开(公告)号：US4687894A

公开(公告)日：1987-08-18

申请号：US738967

申请日：1985-05-29

Applicant: Tadao Koga ,  Mitsuru Sugimori ,  Masanori Terasaki ,  Tsukasa Maenosono ,  Satoru Tsushima ,  Kazuo Yoshida ,  Tetsusho Kuriwaki ,  Miharu Hirado

Inventor： Tadao Koga ,  Mitsuru Sugimori ,  Masanori Terasaki ,  Tsukasa Maenosono ,  Satoru Tsushima ,  Kazuo Yoshida ,  Tetsusho Kuriwaki ,  Miharu Hirado

IPC: C21D1/42 ,  C21D9/50 ,  F16L13/06 ,  H05B6/36 ,  H05B6/40

CPC classification number: H05B6/36 ,  C21D1/42 ,  C21D9/50 ,  F16L13/06 ,  B23K2201/06 ,  Y02P10/253

Abstract: A heating method and apparatus for effecting the residual-stress-relief treatment of a welded joint in a pipe line. A welded joint between main pipes, between a main pipe and a branch pipe, between a main pipe and a pipe base or between a branch pipe and a pipe seat and a portion adjacent to the welded point are uniformly or substantially uniformly heated by an inductor which can be varied into configurations according to the performance of the welded joint. The problems encountered in the conventional residual-stress-relief treatment can be substantially overcome.

Abstract translation: 一种用于对管线中的焊接接头进行残余应力消除处理的加热方法和装置。 在主管和分支管之间，主管和管基之间，分支管和管座之间以及与焊接点相邻的部分之间的主管之间的焊接接头被电感器均匀地或基本均匀地加热 其可以根据焊接接头的性能而变化为构造。 在常规的残余应力消除处理中遇到的问题可以被基本克服。

公开(公告)号：US4098106A

公开(公告)日：1978-07-04

申请号：US709950

申请日：1976-07-29

Applicant: Jousuke Yamaguchi

Inventor： Jousuke Yamaguchi

IPC: B21D7/025 ,  B21D7/03 ,  B21D7/16

CPC classification number: B21D7/025

Abstract: A pipe bending apparatus includes a pivotable bending arm carrying a means for engaging the pipe including an outer clamp attached to the arm and an inner clamp contacting the pipe and slidable within the outer clamp.

Abstract translation: 管道弯曲装置包括可枢转的弯曲臂，其承载用于接合管道的装置，该装置包括附接到臂的外部夹具和与管道接触并可在外部夹具内滑动的内部夹具。