EP 0489881 B1 19950719 - METHOD FOR PRODUCING RIBBED TUBES.
Title (en)
METHOD FOR PRODUCING RIBBED TUBES.
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ROHRES MIT GERIFFELTER WANDUNG.
Title (fr)
PROCEDE DE FABRICATION DE TUBES CANNELES.
Publication
Application
Priority
- FR 9100512 W 19910627
- FR 9008517 A 19900629
Abstract (en)
[origin: WO9200153A1] A method for producing ribbed metal tubes designed mainly but not exclusively for heat exchangers since they are particularly suitable for heat transmission. According to the method, a strip of stainless or refractory metal or alloy is continuously rolled to form ribs thereon, whereafter it is bent and welded.
IPC 1-7
IPC 8 full level
B21C 37/08 (2006.01); B21C 37/083 (2006.01)
CPC (source: EP)
B21C 37/0803 (2013.01); B21C 37/083 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
WO 9200153 A1 19920109; AT E125178 T1 19950815; DE 69111393 D1 19950824; DE 69111393 T2 19951221; EP 0489881 A1 19920617; EP 0489881 B1 19950719; FR 2663869 A1 19920103; FR 2663869 B1 19950113
DOCDB simple family (application)
FR 9100512 W 19910627; AT 91911792 T 19910627; DE 69111393 T 19910627; EP 91911792 A 19910627; FR 9008517 A 19900629