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HomeInnovative and competitive new joining technology for steel pipes using adhesive bonding (JoinTec)
Innovative and competitive new joining technology for steel pipes using adhesive bonding (JoinTec)
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The aim of the JoinTec project was the development of a new joining technology for steel pipes using adhesive bonding. To reach this aim, an adhesive was developed, which meets the requirements in pipe bonding concerning strength and processability. A joint geometry was developed, which can be used easily on construction sites and which is tolerant against misalignments resulting from processing. Basing on this geometry, improvements have been developed to advance the strength of bonded pipe joints and the behaviour under corrosive media. A surface pre-treatment was chosen, which preserves the adherent from contamination and corrosion and which enhances the adhesion of the adhesive on the adherent. The developed joining method was enlarged successfully to be able to join pipeline pipes with diameters of 168.3 mm and 508 mm. A method for non-destructive testing could be developed, which can detect voids in the adhesive layer and adhesion problems. Destructive tests show that the strength of the adhesive joints reaches the yield strength of the pipe materials. Burst pressure tests qualified pipe bonding for low pressure applications. Cost comparison shows that adhesive pipe bonding can nearly compete with Manual Metal Arc Welding when small diameter pipes are used. When compared with automated welding processes, adhesive bonding will not be able to compete with welding. Research work done shows that main applications of adhesively bonded steel pipelines, which can be set into reality in near future, are water transport and applications in the field of low pressure gas transportation.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission)
- Personal author(s): Hilgert, Oliver ; Andersen, Kenneth ; Kaack, Michael ; Bufalini, Andrea ; Flügge, Wilko ; Boeddeker, Tobias
- Themes: Industrial research and development , Basic metals industry, steel industry
- Subject: adhesive , gas pipeline , iron and steel industry , pipeline transport , piping , research report , tube
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| ISSN 1831-9424 | ISBN 978-92-79-30378-4 | DOI 10.2777/24523 | Catalogue number KI-NA-25991-EN-N |
- Released on EU Publications:
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