EP 0144480 A1 19850619 - Cold pilger mill.
Title (en)
Cold pilger mill.
Title (de)
Kaltpilgerwalzwerk.
Title (fr)
Laminoir à pas de pélerin à froid.
Publication
Application
Priority
EP 83402403 A 19831213
Abstract (en)
A cold pilger mill including a rolling mechanism for intermittently rolling a tubular material over a mandrel to a reduced-diameter pipe. A detector (74) is associated with the rolling mechanism for detecting the rolling phase in the rolling mechanism. A feeding mechanism (42) for feeding the material in the axial direction and a turning mechanism (64, 68, 70) for turning the material and the mandrel are respectively provided with their own motors (76, 78, 80, 82). A controller (72) is also provided to receive a signal from the detector (74) and supply operation signals to the respective motors (76, 78, 80, 82) of the feeding mechanism (42) and the turning mechanism (64, 68, 70) so that these mechanisms are operated at completion of each rolling stroke.
IPC 1-7
IPC 8 full level
B21B 21/00 (2006.01); B21B 21/06 (2006.01)
CPC (source: EP)
B21B 21/005 (2013.01); B21B 21/065 (2013.01)
Citation (search report)
- [X] US 4037444 A 19770726 - LEDEBUR HARRY CALHOON, et al
- [A] GB 2065927 A 19810701 - MANNESMANN AG
- [A] FR 1165727 A 19581028 - DALMINE SPA
- [A] FR 2379326 A1 19780901 - VALLOUREC LORRAINE ESCAUT [FR]
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0144480 A1 19850619; EP 0144480 B1 19880601; DE 3376806 D1 19880707
DOCDB simple family (application)
EP 83402403 A 19831213; DE 3376806 T 19831213