EP 3536411 B1 20201118 - AVOIDANCE OF WEARING EDGES WHEN ROLLING FLAT ROLLED PRODUCTS
Title (en)
AVOIDANCE OF WEARING EDGES WHEN ROLLING FLAT ROLLED PRODUCTS
Title (de)
VERMEIDUNG VON VERSCHLEISSKANTEN BEIM WALZEN VON FLACHEM WALZGUT
Title (fr)
PRÉVENTION DES BORDS D'USURE LORS DU LAMINAGE D'UN PRODUIT PLAT À LAMINER
Publication
Application
Priority
EP 18160879 A 20180309
Abstract (en)
[origin: WO2019170381A1] The invention relates to a roll stand (1) having at least one pair of rollers (4, 5) between which the flat rolled product (2) is located. The rollers (4, 5) can be moved axially in opposite directions. The roll stand (1) additionally has a bending system (6) for the rollers (4, 5). A controller (8) of the roll stand (1) uses the bending and the axial movement of the rollers (4, 5) in order to regulate the roll gap contour as an adjustment mechanism. Prior to rolling a respective rolled product (2), the controller determines a respective axial position (x) as the resulting axial position (x) and sets the axial position as the axial position (x) of the rollers (4, 5) for the roll stand (1) in order to roll the next flat rolled product (2). For this purpose, the controller (8) ascertains how far a specified target roll gap contour can be approximated for a plurality of axial positions (x) of the rollers (4, 5) by actuating the adjustment mechanism (6, 7) while taking into consideration technological boundary conditions and classifies the axial positions (x) at which a deviation of the resulting roll gap contour from the target roll gap contour lies below a specified limit as being permissible. The controller then removes the axial positions (x) excluded from the plurality of axial positions (x) classified as being permissible as long as at least one axial position (x) classified as being permissible still remains after the excluded axial positions (x) are removed. The controller (8) determines one of the remaining axial positions (x) as the resulting axial position (x).
IPC 8 full level
B21B 1/40 (2006.01)
CPC (source: EP US)
B21B 1/40 (2013.01 - EP); B21B 13/02 (2013.01 - US); B21B 37/165 (2013.01 - US); B21B 37/42 (2013.01 - US); B21B 1/38 (2013.01 - EP); B21B 1/42 (2013.01 - EP); B21B 13/142 (2013.01 - EP); B21B 2261/046 (2013.01 - EP); B21B 2261/14 (2013.01 - EP); B21B 2269/04 (2013.01 - EP); B21B 2269/12 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3536411 A1 20190911; EP 3536411 B1 20201118; CN 111801173 A 20201020; CN 111801173 B 20220614; US 2021046529 A1 20210218; WO 2019170381 A1 20190912
DOCDB simple family (application)
EP 18160879 A 20180309; CN 201980018241 A 20190214; EP 2019053618 W 20190214; US 201916970078 A 20190214