EP 1764167 A1 20070321 - Method and rolling mill for manufacturing a seamless tube
Title (en)
Method and rolling mill for manufacturing a seamless tube
Title (de)
Verfahren und Walzwerk zur Herstellung eines nahtlosen Rohres
Title (fr)
Procédé et laminoir pour la fabrication d'un tube sans soudure
Publication
Application
Priority
DE 102005044777 A 20050920
Abstract (en)
Production of seamless pipes comprises forming a hollow block (2) using a perforated roll system (1). A mandrel bar (4) is inserted into this, after which it is passed through a mandrel mill (3) where it is formed into a pipe (5). This is then passed directly to a reducing mill (6) where it is calibrated. The mandrel bar is removed before the pipe before entering the mill. An independent claim is included for a rolling mill system for use in the production method.
IPC 8 full level
B21B 23/00 (2006.01); B21B 17/04 (2006.01); B21B 17/14 (2006.01)
CPC (source: EP)
B21B 17/04 (2013.01); B21B 17/14 (2013.01); B21B 23/00 (2013.01); B21B 19/04 (2013.01); B21B 25/00 (2013.01); B21B 25/02 (2013.01); B21B 25/04 (2013.01)
Citation (search report)
- [XY] EP 0601932 A1 19940615 - SUMITOMO METAL IND [JP]
- [Y] WO 9101824 A1 19910221 - TUBEMILL S A [LU]
- [Y] DE 10261632 A1 20031016 - SMS MEER GMBH [DE]
- [X] JP S58119416 A 19830715 - KAWASAKI STEEL CO
- [X] DE 2409870 A1 19740912 - SUMITOMO METAL IND
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1764167 A1 20070321; EP 1764167 B1 20090916; AT E442917 T1 20091015; DE 102005044777 A1 20070329; DE 502006004843 D1 20091029
DOCDB simple family (application)
EP 06013879 A 20060704; AT 06013879 T 20060704; DE 102005044777 A 20050920; DE 502006004843 T 20060704