COLD ROLLING APPARATUS AND METHOD FOR COLD ROLLING

Title:

COLD ROLLING APPARATUS AND METHOD FOR COLD ROLLING

Document Type and Number:

WIPO Patent Application WO/2011/055458

Kind Code:

A1

Abstract:

An apparatus and method of cold rolling for a small sized or medium-sized plant with a capacity from 300thousand to 600 thousand tons of product per year are proposed that have a high efficiency, a high yield and a high cost-efficiency. A strip is directly fed to a cold rolling mill (1) from a coil (101a) at an uncoiler (2) to be cold-milled and then to be rewound by a rewinder (4). When the trailing end of the coil (101a) reaches a splicer (5), the end is joined to a leading end of next coil (101b) uncoiled by the uncoiler(2) and the next coil (101b) is cold-milled. The cold-milling and joining operations are repeated for following coils at the cold rolling mill (1) and the splicer (5) in a first path to form a buildup coil (102). The buildup coil (102) is then repeatedly rolled down in a reversing rolling to a desired thickness. In the final path, the build up coil (102) is divided into several coils (103) by means of a cutter (6a) or (6b).

Inventors:

KAGA SHINICHI (JP)
ONOSE MITSURU (JP)
TOMINAGA NORIAKI (JP)
SAITO TAKEHIKO (JP)
YOSHIMURA YASUTSUGU (JP)
MASUDA TOYOTSUGU (JP)
MAENO ICHIROU (JP)

Application Number:

PCT/JP2009/069064

Publication Date:

May 12, 2011

Filing Date:

November 09, 2009

Export Citation:

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Assignee:

MITSUBISHI HITACHI METALS (JP)
KAGA SHINICHI (JP)
ONOSE MITSURU (JP)
TOMINAGA NORIAKI (JP)
SAITO TAKEHIKO (JP)
YOSHIMURA YASUTSUGU (JP)
MASUDA TOYOTSUGU (JP)
MAENO ICHIROU (JP)

International Classes:

B21B1/36; B21B15/00; B21B37/18; B21B37/32; B21B37/38; B21B41/00

Foreign References:

JPS525649A	1977-01-17
JP2006334647A	2006-12-14

Other References: