Electrofusion of pipe coatings

DE602018092427T2Active Publication Date: 2026-07-15ACERGY FRANCE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
ACERGY FRANCE
Filing Date
2018-12-17
Publication Date
2026-07-15

AI Technical Summary

Technical Problem

Existing methods for joining polymer liners in pipelines face challenges such as damage from welding heat, leak paths from electrical connections, and high power consumption in electromagnetic induction, particularly in closed-bevel automatic welding techniques.

Method used

An induction coil is used inside the pipe to generate localized heat at the interface between liner sections, moving circumferentially to fuse the polymer material without external electrical connections, using a drive system and alignment sensors for precise positioning.

Benefits of technology

This method efficiently fuses polymer liners within pipelines, reducing power consumption and avoiding leak paths, while maintaining a continuous corrosion-resistant surface, suitable for closed-bevel welding.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader
Need to check novelty before this filing date? Find Prior Art
No text content released.