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Plug used for shaping of branch pipe of super pipeline and process for shaping branch pipe of pipeline by using the same

A technology of super pipe and forming process, applied in the field of super pipe processing technology, can solve problems such as low yield, fracture, crack, etc., and achieve the effect of promoting bending deformation

Inactive Publication Date: 2011-08-24
BEIJING GUODIAN FUTONG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is to overcome the problem that in the prior art, the ellipsoidal head whose side curvature is too large or too small is only suitable for forming large-sized branch pipes, and is prone to cracks and fractures when forming smaller-sized branch pipes Defects, thus providing a plug that can be applied to branch pipes of various specifications
[0006] Another technical problem to be solved by the present invention is to overcome the defects of low finished product quality and low yield in the prior art when using an ellipsoidal plug with too large or too small side curvature to top a branch pipe with a small size , so as to provide a branch pipe forming process that can ensure a high branch pipe yield and high product quality

Method used

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  • Plug used for shaping of branch pipe of super pipeline and process for shaping branch pipe of pipeline by using the same
  • Plug used for shaping of branch pipe of super pipeline and process for shaping branch pipe of pipeline by using the same
  • Plug used for shaping of branch pipe of super pipeline and process for shaping branch pipe of pipeline by using the same

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Embodiment 1

[0054] In this embodiment, the working end of the plug 1 used for super pipe branch forming is a section of the rotating body 2, and the generatrix of the rotating body 2 is a straight line, that is, the rotating body 2 is a cone 2, and the rotating body 2 The cross-sectional area of ​​a section of the body 2 decreases gradually along the advancing direction of the plug 1, and the angle α between the generatrix of the cone 2 and the centerline of the cone 2 is 15° (see Figure 6 ); the cone 2 has a top fillet 3, in this embodiment, the radius of the top fillet 3 is 0.2 times the radius of the bottom surface of the cone 2 (see Figure 8 ); the bottom surface of the cone 2 in this embodiment is coaxially combined with a cylinder 9 and has a smooth transition, and the radius of the cylinder 9 is equal to the radius of the bottom surface of the cone 2 (see Figure 4-Figure 7 ).

[0055] In addition, in other embodiments of the present invention, when the working end of the plug (...

Embodiment 2

[0063] In this embodiment, the working end of the plug 1 used for super pipe branch forming is a section of the rotating body 2, and the generatrix of the rotating body 2 is a straight line, that is, the rotating body 2 is a cone 2, and the rotating body 2 The cross-sectional area of ​​a section of the body 2 decreases gradually along the advancing direction of the plug 1, and the angle α between the generatrix of the cone 2 and the centerline of the cone 2 is 70° (see Figure 7 ), the cone 2 has a top fillet 3, in this embodiment, the radius of the top fillet 3 is 0.2 times the radius of the bottom surface of the cone 2 (see Figure 8 ); the bottom surface of the cone 2 in this embodiment is coaxially combined with a cylinder 9 and has a smooth transition, and the radius of the cylinder 9 is equal to the radius of the bottom surface of the cone 2 (see Figure 4-Figure 7 ).

[0064] In this embodiment, the technological process for forming super pipe branch pipes using the pl...

Embodiment 3

[0071] In this embodiment, the working end of the plug 1 used for super pipe branch forming is a section of the rotating body 2, and the generatrix of the rotating body 2 is a straight line, that is, the rotating body 2 is a cone 2, and the rotating body 2 The cross-sectional area of ​​the body 2 decreases gradually along the advancing direction of the plug 1, and the angle α between the generatrix of the cone 2 and the centerline of the cone 2 is α30° (see Figure 4 ); the cone 2 has a top fillet 3. In this embodiment, the chord length corresponding to the arc of the top fillet 3 is 0.2 times the radius of the bottom surface of the cone 2 (see Figure 8 ); the bottom surface of the cone 2 in this embodiment is coaxially combined with a cylinder 9 and has a smooth transition, and the radius of the cylinder 9 is equal to the radius of the bottom surface of the cone 2 (see Figure 4-Figure 7 ).

[0072] In this embodiment, the technological process for forming super pipe branch...

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Abstract

The invention relates to the field of super pipeline shaping. The plug used for shaping of a branch pipe of the super pipeline provided by the invention comprises: a working end of the plug is a segment of a rotator; the sectional area of the segment of the rotator is gradually decreased along the proceeding direction of the plug; an included angle alpha between rotator buses or tangents of the points on the bus and a turning shaft of the rotator is 15-70 DEG; and the rotator has a plug fillet. The branch pipes of various dimensions could be shaped by employing the plug and the process of shaping the branch pipe of the super pipeline of the invention, reducing deformation temperature and probability of cracking and fracturing of the branch pipe.

Description

technical field [0001] The present invention relates to the processing technology field of super pipelines, in particular, it relates to a plug used for forming super pipeline branch pipes and a process for forming pipe branch pipes using the plug. The products and processes of the present invention are also applicable to super pipeline branch pipes Forming of other branch pipes. Background technique [0002] The super pipeline branch pipe forming process in the prior art is made by welding the upper branch pipe after opening holes in the relative position of the pipe branch pipe, because the branch pipe and the pipeline are connected by welding, and the fatigue and shear resistance of the welded part is poor , resulting in poor performance of the branch pipe. Chinese patent document CN101579715A discloses an improved super pipeline branch pipe forming process and an oval plug used in super pipe branch pipe forming. In this process, after selecting a steel pipe with a certa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/06
Inventor 彭先宽郭磊孙立明安锦平丛相州朱仲礼
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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