Global Patent Index - EP 0854762 B1

EP 0854762 B1 20000426 - CALIBRE CONTOUR IN A ROLLING MILL ROLLER FOR TUBES

Title (en)

CALIBRE CONTOUR IN A ROLLING MILL ROLLER FOR TUBES

Title (de)

KALIBERKONTUR DER WALZE EINES ROHRWALZWERKES

Title (fr)

CONTOUR DES CANNELURES DES CYLINDRES D'UN LAMINOIR A TUYAUX

Publication

EP 0854762 B1 20000426 (DE)

Application

EP 96943860 A 19960927

Priority

  • DE 9601881 W 19960927
  • DE 19539408 A 19951011

Abstract (en)

[origin: DE19539408A1] The disclosure concerns a calibre contour in the substantially circular rollers of a reduction roller mill with three-high stands, intended in particular for use in rolling thick-walled tubes with wall thickness/diameter ratio which is greater than 0.25. The calibre contour of each roller (1) has a widening in the diameter (5) in the region of the contour floor in which the region of rolled material rolled to an upstream (in the direction of the roll) calibre can be deformed.

IPC 1-7

B21B 17/14

IPC 8 full level

B21B 17/14 (2006.01)

CPC (source: EP US)

B21B 17/14 (2013.01 - EP US)

Designated contracting state (EPC)

DE IT

DOCDB simple family (publication)

DE 19539408 A1 19970417; DE 19539408 C2 20030320; AR 003823 A1 19980909; CN 1068804 C 20010725; CN 1199355 A 19981118; DE 59605068 D1 20000531; EP 0854762 A2 19980729; EP 0854762 B1 20000426; JP 4012570 B2 20071121; JP H11513312 A 19991116; PL 180718 B1 20010330; PL 326154 A1 19980831; RU 2138347 C1 19990927; TW 314480 B 19970901; US 6065320 A 20000523; WO 9713595 A2 19970417; WO 9713595 A3 19970717

DOCDB simple family (application)

DE 19539408 A 19951011; AR P960104647 A 19961008; CN 96197549 A 19960927; DE 59605068 T 19960927; DE 9601881 W 19960927; EP 96943860 A 19960927; JP 51461897 A 19960927; PL 32615496 A 19960927; RU 98108447 A 19960927; TW 85111846 A 19960926; US 5136098 A 19980408