EP 1463591 B1 20050601 - METHOD AND ROLLING STAND FOR PRODUCING RODS, BAR STOCK OR SEAMLESS TUBES
Title (en)
METHOD AND ROLLING STAND FOR PRODUCING RODS, BAR STOCK OR SEAMLESS TUBES
Title (de)
VERFAHREN UND WALZANLAGE ZUM HERSTELLEN VON DRAHT, STÄBEN ODER NAHTLOSEN ROHREN
Title (fr)
PROCEDE ET INSTALLATION DE LAMINAGE PERMETTANT DE PRODUIRE DU FIL METALLIQUE, DES BARRES OU DES TUYAUX SANS SOUDURE
Publication
Application
Priority
- DE 10200581 A 20020109
- DE 10261632 A 20021227
- EP 0300090 W 20030108
Abstract (en)
[origin: WO03057383A1] The invention relates to a method for producing rods, bar stock or seamless tubes on a rolling stand for rolling hot metal material. Said rolling stand optionally comprises, when seen in the direction of rolling, a piercing-crossrolling mill, a multiple-stand stretch-rolling mill as the main stretching stage (4), a drawing mill (6), a finishing mill (10) and a rod rolling block (15) and devices, mounted upstream, intermediately or downstream thereof, such as a preheating furnace and a reheating furnace (11), roller tables (14) and a cooling bed (13). According to the inventive method, in the main stretching stage (4), a three-roller continuous rolling mill (3) is used both for rolling tubes and for massive rolling for producing bar stock, rods or the like. For massive rolling, the mandrel bar used for tube milling is brought out of the operative position and the provided bar stock rolls calibrated for a larger diameter reduction than used for tube milling are replaced by rolls calibrated for tube milling. A rolling mill suitable for carrying out the inventive method has, in the main stretching stage (4), a multi-stand three-roller continuous rolling mill (3) adapted to receive bar stock rolls or tube rolls and a device for removing the mandrel bar.
IPC 1-7
IPC 8 full level
B21B 1/18 (2006.01); B21B 23/00 (2006.01); B21B 1/20 (2006.01); B21B 17/04 (2006.01); B21B 17/14 (2006.01); B21B 19/04 (2006.01); B21B 25/06 (2006.01); B21B 37/52 (2006.01); B21B 37/78 (2006.01)
CPC (source: EP)
B21B 1/18 (2013.01); B21B 23/00 (2013.01); B21B 1/20 (2013.01); B21B 17/04 (2013.01); B21B 17/14 (2013.01); B21B 19/04 (2013.01); B21B 25/06 (2013.01); B21B 37/52 (2013.01); B21B 37/78 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03057383 A1 20030717; AT E296689 T1 20050615; AU 2003235800 A1 20030724; AU 2003235800 B2 20060511; BR 0306683 A 20041207; BR 0306683 B1 20110111; EP 1463591 A1 20041006; EP 1463591 B1 20050601; ES 2243904 T3 20051201; PL 203879 B1 20091130; PL 369431 A1 20050418; RU 2004124048 A 20050610; RU 2274503 C2 20060420
DOCDB simple family (application)
EP 0300090 W 20030108; AT 03729229 T 20030108; AU 2003235800 A 20030108; BR 0306683 A 20030108; EP 03729229 A 20030108; ES 03729229 T 20030108; PL 36943103 A 20030108; RU 2004124048 A 20030108