US 7,740,052 B2 · Method for extending the casting cycle for two-roll strip casting, and installation for carrying out said method

Abstract

A method for extending the casting cycle for the two-roll strip casting of a steel strip, with inline rolling thereof, the steel strip being rolled in at least two successive rolling units of a rolling mill having replaceable working rolls. The casting process is carried out independently from the roll replacement by replacing the working rolls of one rolling unit during the casting, below or above the steel strip. An installation for carrying out the method includes a lifting devices for lifting the working rolls off the steel strip so as not to damage the strip during the replacement of the rolls.

Claims13

Dependent claims

Method for extending a casting cycle in two-roll strip casting with in-line rolling of steel strip, which is rolled in two successive rolling units (1, 2) of a rolling mill with changeable work rolls (5a, 5b, 6a, 6b), wherein the work rolls (5a, 5b;

6a, 6b) that are to be changed are changed above and below the steel strip (23) by separating the work rolls to form a gap between the work rolls and the steel strip and laterally extracting the work rolls from the rolling unit (1, 2) during casting.

Dependencies are inferred from the claim text.

Facts

Application

10/567,932Filed 13 Aug 2004

Priority

CH 1398/0313 Aug 2003

Published

US 2007/0187065 A116 Aug 2007

Granted

22 Jun 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

B21B 1/463
For rolling metal immediately subsequent to continuous casting: in a continuous process, i.e. the cast not being cut before rolling
B21B 31/106
By horizontally displacing , i.e. horizontal roll changing: vertical displacement of rolls or roll chocks during horizontal roll changing
B21B 1/46
Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section ; Sequence of operations in milling trains;…:…
B21B 31/12
Interchanging rolls, roll mountings, or stand frames , e.g. using C-hooks; Replacing roll chocks on roll shafts: by vertically displacing

Method for extending the casting cycle for two-roll strip casting, and installation for carrying out said method

Life of this patent

Method for extending the casting cycle for two-roll strip casting, and installation for carrying out said method

Life of this patent

Abstract

Claims13