Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A corrugated pipe with different deformation strengthening layers

A corrugated pipe and strengthening layer technology, applied in the field of pipeline compensation, can solve the problems of small deformation rate and limited strengthening effect, and achieve the effects of saving material usage, low stress corrosion sensitivity, and improving the overall pressure bearing capacity

Active Publication Date: 2022-04-05
LUOYANG SUNRUI SPECIAL EQUIP
View PDF22 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the forming of large diameter corrugated pipes, the deformation rate of the material will be smaller than that of small diameter corrugated pipes, so the forming of corrugated pipes has a limited effect on strengthening the material of large diameter corrugated pipes, and it does not give full play to the potential of material strength strengthening

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A corrugated pipe with different deformation strengthening layers
  • A corrugated pipe with different deformation strengthening layers
  • A corrugated pipe with different deformation strengthening layers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A corrugated pipe with different deformation strengthening layers, which is used for hydraulic corrugation forming of multi-layered corrugated pipe blanks, the corrugated pipe blanks located in the innermost and outermost layers are not initially The corrugated pipe blank between the inner layers is initially strengthened, and the process of initial strengthening is to carry out uniform axial stretching and / or circumferential stretching of the corrugated pipe blank. Such as figure 1 As shown, the outermost and innermost corrugated pipe blanks are the uninitiated strengthening layer, and the middlemost corrugated pipe blank is the initial strengthening layer. The initial strengthening layer is the strength base, which only bears pressure, and the layer in contact with the corrosive medium is a non-initial strengthening layer. The non-initial strengthening layer can be placed on the inner layer or the outer layer alone, or it can be arranged on the inner layer and the ou...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A corrugated pipe with different deformation strengthening layers, which is used for hydraulic corrugation forming of multi-layered corrugated pipe blanks, the corrugated pipe blanks located in the innermost and outermost layers are not initially The corrugated pipe blank between the inner layers is initially strengthened, and the process of initial strengthening is to carry out uniform axial stretching and / or circumferential stretching of the corrugated pipe blank. This technology rationally utilizes the pre-strain strengthening technology of the bellows tube blank to improve the pressure bearing capacity of the bellows, that is, compared with the conventional structure bellows, the designed bellows has stress corrosion resistance and higher pressure bearing strength.

Description

technical field [0001] The invention belongs to the field of pipeline compensation, in particular to a bellows with different deformation strengthening layers. Background technique [0002] The bellows with multi-layer structure is completed by welding and rolling each layer of tube blanks. The whole process is that the bellows tube blanks produce plastic yield under the action of forming force, the slider of the press is lowered, and the elastic rebound is released after the mold is closed. Forming is completed. After the corrugated pipe is formed, the strength of the material increases, and the material body is strengthened. Compared with the tube blank before forming, the yield strength of the material increases, which is the result of typical material work hardening. For the forming of large diameter corrugated pipes, the deformation rate of the material will be smaller than that of small diameter corrugated pipes, so the forming of corrugated pipes has a limited effect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16L51/02F16L58/02B21D15/06B21D15/10
CPCF16L51/02F16L58/02B21D15/06B21D15/10
Inventor 闫廷来李杰杨玉强刘海威李瑞琴
Owner LUOYANG SUNRUI SPECIAL EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com