EP 0317841 A3 19891025 - METHOD OF ROLLING BAR SECTIONS, SUCH AS BEAMS
Title (en)
METHOD OF ROLLING BAR SECTIONS, SUCH AS BEAMS
Publication
Application
Priority
DE 3740111 A 19871126
Abstract (en)
[origin: EP0317841A2] A method of rolling bar sections, such as beams or girders, in a rolling mill including a reversing roughing or blooming stand and downstream universal stands, universal stand groups or two-high stands. Initially, the bar sections are pre-rolled in n-passes into beam-blank sections in the reversing blooming stand. Subsequently, the pre-rolled bar sections are cropped at one or both ends. The cropped ends of the bar sections are then introduced into the universal stand, the universal stand group, or the two-high stands located downstream where they are finish-rolled. Cropping of one or both ends of the bar sections takes place after n-1 or less passes in the reversing blooming stand followed by additional passes in the same reversing blooming stand until the n-passes have been completed.
IPC 1-7
IPC 8 full level
B21B 1/14 (2006.01); B21B 15/00 (2006.01)
CPC (source: EP)
B21B 1/14 (2013.01); B21B 15/0007 (2013.01); B21B 2273/12 (2013.01)
Citation (search report)
[A] DE 2344652 A1 19740314 - NIPPON STEEL CORP, et al
Designated contracting state (EPC)
AT DE ES FR GB IT
DOCDB simple family (publication)
EP 0317841 A2 19890531; EP 0317841 A3 19891025; DE 3740111 A1 19890608
DOCDB simple family (application)
EP 88118798 A 19881111; DE 3740111 A 19871126