EP 1901862 B1 20110803 - DEVICE FOR PRODUCTION OF A SEAMLESS HOLLOW BODY FROM STEEL
Title (en)
DEVICE FOR PRODUCTION OF A SEAMLESS HOLLOW BODY FROM STEEL
Title (de)
VORRICHTUNG ZUM HERSTELLEN EINES NAHTLOSEN HOHLKÖRPERS AUS STAHL
Title (fr)
DISPOSITIF DESTINE A LA FABRICATION D'UN CORPS CREUX SANS SOUDURE EN ACIER
Publication
Application
Priority
- DE 2006001074 W 20060615
- DE 102005028667 A 20050616
Abstract (en)
[origin: US8316680B2] The invention relates to an apparatus for making a seamless hollow body (10) from a solid round block (7) of steel with a diameter <95% of the diameter of the solid round block by means of a two-roll cross-rolling mill with a piercing mandrel (3) held between the inclined roll (1) and including a piercer (5) and at least one smoothing part (4) using pass-closing guides, or by means of a three-roll cross rolling mill with a piercing mandrel held between the inclined rolls and including a piercer and at least one smoothing part, wherein the distance of the rolls is adjusted in a particular manner at the narrowest cross-section (2) in relation to the diameter of the used round block, and the position of the piercing mandrel is adjusted in relation to the narrowest cross-section of the rollers.
IPC 8 full level
B21B 19/04 (2006.01)
CPC (source: EP US)
B21B 19/04 (2013.01 - EP US)
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
DOCDB simple family (publication)
US 2009113970 A1 20090507; US 8316680 B2 20121127; AT E518606 T1 20110815; AU 2006257519 A1 20061221; AU 2006257519 B2 20110127; BR PI0612291 A2 20101103; BR PI0612291 B1 20190702; CA 2611870 A1 20061221; CA 2611870 C 20130205; CN 101198419 A 20080611; CN 101198419 B 20190813; DE 102005028667 A1 20061221; EA 013888 B1 20100830; EA 200800062 A1 20080630; EP 1901862 A1 20080326; EP 1901862 B1 20110803; ES 2370836 T3 20111223; JP 2008543569 A 20081204; JP 5103387 B2 20121219; MX 2007015999 A 20080307; PL 1901862 T3 20111230; UA 96920 C2 20111226; WO 2006133696 A1 20061221
DOCDB simple family (application)
US 91784306 A 20060615; AT 06761695 T 20060615; AU 2006257519 A 20060615; BR PI0612291 A 20060615; CA 2611870 A 20060615; CN 200680020994 A 20060615; DE 102005028667 A 20050616; DE 2006001074 W 20060615; EA 200800062 A 20060615; EP 06761695 A 20060615; ES 06761695 T 20060615; JP 2008516128 A 20060615; MX 2007015999 A 20060615; PL 06761695 T 20060615; UA A200800358 A 20060615