EP 1064486 A2 20010103 - TUBE HAVING AN EXPANSION AREA AND METHOD FOR PRODUCING SUCH A TUBE
Title (en)
TUBE HAVING AN EXPANSION AREA AND METHOD FOR PRODUCING SUCH A TUBE
Title (de)
ROHR MIT EINEM AUFWEITBEREICH UND VERFAHREN ZUR HERSTELLUNG EINES ROHRS MIT EINEM AUFWEITBEREICH
Title (fr)
TUBE PRESENTANT UNE ZONE D'ELARGISSEMENT ET PROCEDE DE PRODUCTION D'UN TEL TUBE
Publication
Application
Priority
- DE 9900577 W 19990304
- DE 19811599 A 19980317
Abstract (en)
[origin: DE19811599A1] The invention relates to a tube (7 or 21) with an expansion area (25 or 25A, 25B) presenting a roughness (26 or 26A, 26B). In this area, for example a heat exchanger tube (7A) can be fixed by expanding the tube wall (23). The roughness (26 or 26A, 26B) is generated by roughening the tube wall (23) and applying a coat (31) of deformable metal, especially a nickel material, onto the roughened tube wall (23). The tube can be used both as a repair sleeve (21) (sleeve tube) for repairing defective heat exchanger tubes (7A) but also as a heat exchanger tube (7) which can easily be fitted into the tube bottom (9) of a steam generator (1). The invention also relates to a method for producing a tube (7 or 21) having an expansion area (25 or 25A, 25B).
IPC 1-7
IPC 8 full level
F28D 7/06 (2006.01); F28F 9/16 (2006.01); F28F 11/02 (2006.01)
CPC (source: EP)
F28D 7/06 (2013.01); F28F 9/16 (2013.01); F28F 11/02 (2013.01); F28D 2021/0054 (2013.01)
Citation (search report)
See references of WO 9947843A2
Designated contracting state (EPC)
BE CH DE ES FR LI SE
DOCDB simple family (publication)
DE 19811599 A1 19990930; DE 19811599 C2 20020110; EP 1064486 A2 20010103; WO 9947843 A2 19990923; WO 9947843 A3 19991104
DOCDB simple family (application)
DE 19811599 A 19980317; DE 9900577 W 19990304; EP 99919027 A 19990304