EP 2321085 A1 20110518 - METHOD OF MANUFACTURE THROUGH THE WELDING OF FINNED TUBES WITH COOLED GUIDE DISCS ONTO A TUBULAR BODY SET INTO ROTATIONAL MOTION
Title (en)
METHOD OF MANUFACTURE THROUGH THE WELDING OF FINNED TUBES WITH COOLED GUIDE DISCS ONTO A TUBULAR BODY SET INTO ROTATIONAL MOTION
Title (de)
VERFAHREN ZUR HERSTELLUNG DURCH SCHWEISSEN VON RIPPENROHREN AUF EINEM IN ROTATION VERSETZTEN ROHRKÖRPER MIT GEKÜHLTEN FÜHRUNGSCHEIBEN
Title (fr)
PROCÉDÉ DE FABRICATION DE TUBES NERVURÉS PAR SOUDAGE SUR UN CORPS TUBULAIRE MIS EN ROTATION, À L'AIDE DE DISQUES DE GUIDAGE REFROIDIS
Publication
Application
Priority
- EP 2009058355 W 20090702
- DE 102008033449 A 20080716
Abstract (en)
[origin: CA2730427A1] The invention relates to a method for manufacturing finned tubes made of metal, in particular heat exchanger tubes, wherein at least one continuous strip (4) forming the fins (1) is fed tangentially to a tubular body (2) that is set into rotational motion, said strip wound onto the tubular body, the side of the strip (4) facing the tubular body (2) is connected to the tube surface by way of a welding device (7,8) using a filler material (9), and the strip (4) to be wound is fed just behind the welding area between guide discs (12) that extend toward the surface of the tube and to the point of welding up to the point of being flush therewith. In order to increase the life of the guide discs (12), the guide discs (12) are cooled using cooling water to which about 10 vol.-% of a welding release agent is added.
IPC 8 full level
B23K 9/032 (2006.01); B08B 3/04 (2006.01); B21B 28/02 (2006.01); B21C 37/26 (2006.01); B23K 101/08 (2006.01); B23K 101/14 (2006.01)
CPC (source: EP KR US)
B21C 37/26 (2013.01 - EP KR US); B23K 9/0325 (2013.01 - EP KR US); B23K 37/003 (2013.01 - KR); B23K 37/0538 (2013.01 - KR); B23K 2101/08 (2018.08 - EP KR US); B23K 2101/14 (2018.08 - EP KR US); Y10T 29/49378 (2015.01 - EP US); Y10T 29/49382 (2015.01 - EP US); Y10T 29/49391 (2015.01 - EP US); Y10T 29/53113 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008033449 B3 20091119; CA 2730427 A1 20100121; CN 102099144 A 20110615; EP 2321085 A1 20110518; JP 2011527944 A 20111110; KR 20110043668 A 20110427; RU 2011105625 A 20120827; RU 2477676 C2 20130320; US 2011119917 A1 20110526; US 8732951 B2 20140527; WO 2010006930 A1 20100121
DOCDB simple family (application)
DE 102008033449 A 20080716; CA 2730427 A 20090702; CN 200980127373 A 20090702; EP 09780102 A 20090702; EP 2009058355 W 20090702; JP 2011517848 A 20090702; KR 20117003509 A 20090702; RU 2011105625 A 20090702; US 200913054538 A 20090702