[article]
| Titre : |
Induction heating for cold weather preheating and post-curing of liquid epoxy coatings on gas pipeline girth welds |
| Type de document : |
texte imprimé |
| Auteurs : |
Bruce J. Wiskel, Auteur ; J. Peter Ault, Auteur |
| Année de publication : |
2016 |
| Langues : |
Américain (ame) |
| Catégories : |
Basses températures
Chauffage par induction
Climat
Epoxydes
Lignes de soudure
Revêtements protecteurs
Tuyaux de gaz
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Induction heating for cold weather pipeline girth welds - In 2013, Pacific Gas & Electric Company (PG&E) did not have a specific standard or guidance for selection, application and inspection of cold weather, field-applied coatings on transmission piping when the pipe surface temperatures went below 50 F (10 C). In November of that year, unusually cold weather hit northern California. Night temperatures were below freezing, which caused the pipe surface to be below the 50 F minimum necessary to cure the approved epoxy coatings.
At this time, the application procedure consisted of enclosing the work area and using space heaters to raise the ambient temperature sufficient to increase the pipe temperature. This approach was costly and cumbersome, and resulted in cure times of 6-to-10 hours or more. With these long cure times, construction crews could not quickly backfill the pipelines, and corresponding construction production rates were slow and costs high. |
| Note de contenu : |
- COLD WEATHER COATING CHALLENGES
- LOW-TEMPERATURE COATING
- INDUCTION HEATING : Laboratory demonstrations - Field demonstrations
- AN ALTERNATIVE PIPE-HEATING PRACTICE |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25629 |
in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 33, N° 2 (02/2016)
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Induction heating for cold weather preheating and post-curing of liquid epoxy coatings on gas pipeline girth welds in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 33, N° 2 (02/2016)
