Global Patent Index - EP 0730918 B1

EP 0730918 B1 2001-03-28 - Method and device for levelling flat metal products, such as metal bands, sheet metal

Title (en)

Method and device for levelling flat metal products, such as metal bands, sheet metal

Title (de)

Verfahren und Vorrichtung zum Richten von flachen metallischen Produkten sowie Blechen, Metallbanden

Title (fr)

Procédé et dispositif de planage de produits plats métalliques, tels que bandes, toles ou feuilles

Publication

EP 0730918 B1 (FR)

Application

EP 96400488 A

Priority

FR 9502852 A

Abstract (en)

[origin: EP0730918A1] A process is claimed for planishing flat metal products (30) such as plates, sheets or strip. The product is passed between two assemblies of planishing rollers (5,51,53). The rollers (51) of one assembly being staggered in the direction of defilement (F) with respect to the rollers (53) of the other assembly. The two assemblies are spaced and positioned in such a manner that the product is subjected to a series of alternate flexions of decreasing amplitude. Compensation is made for the strain of the rollers provoked by the stresses imposed by the product on the rollers. This compensation is applied independently for each roller, in a manner that ensures that all the longitudinal fibres of the product are subjected to the series of bending deformations for which the amplitudes and the variations of the amplitude in the direction of defilement are essentially identical over the width of the product. The device used to put this process into service is also claimed.

IPC 1-7 (main, further and additional classification)

B21D 1/02

IPC 8 full level (invention and additional information)

B21D 1/02 (2006.01)

CPC (invention and additional information)

B21D 1/02 (2013.01)

Designated contracting state (EPC)

AT BE DE DK ES FI FR GB IT LU NL PT SE

EPO simple patent family

EP 0730918 A1 19960911; EP 0730918 B1 20010328; AT 200043 T 20010415; DE 69612225 D1 20010503; DE 69612225 T2 20011011; ES 2155174 T3 20010501; FR 2731372 A1 19960913; FR 2731372 B1 19970516; PT 730918 E 20010928

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2001-05-03 [REF] CORRESPONDS TO:

- Document: DE 69612225 20010503

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- Owner name: BUGNION S.P.A.

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