Global Patent Index - EP 0976465 A1

EP 0976465 A1 2000-02-02 - A volume-control regulatinon procedure for plastic processing of material by cross-sectional reduction, and system

Title (en)

A volume-control regulatinon procedure for plastic processing of material by cross-sectional reduction, and system

Title (de)

Verfahren und system zum Steuern eines Ziehverfahrens durch Volumenmessung

Title (fr)

Procédé et système de réglage d'un procédé d'étirage par mesure de volume

Publication

EP 0976465 A1 (EN)

Application

EP 98113975 A

Priority

EP 98113975 A

Abstract (en)

In a system comprising an upstream die plate (12) and a downstream die plate (14) for carrying out plastic processing with reduction of cross section on a moving strip or wire (F) of material, one drawing capstan (16) downstream of an upstream die plate (12), and a further drawing capstan (18) downstream of a downstream die plate (14), possible errors of rotational speed of the upstream capstan (16) with respect to the downstream capstan (18) are detected by measuring the volume of material that passes per unit time at a location upstream of the upstream capstan (16), which is the capstan being controlled, and at a location upstream of the downstream capstan (18), which is the reference capstan. The measurement must be made in the vicinity of the corresponding die plates (12,14)(it is not important whether before or behind). <IMAGE>

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

B21C 1/12

IPC 8 full level (invention and additional information)

B21C 1/12 (2006.01)

CPC (invention and additional information)

B21C 1/12 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family

EP 0976465 A1 20000202; EP 0976465 B1 20011128; AT 209540 T 20011215; DE 69802675 D1 20020110; DE 69802675 T2 20020912; DK 0976465 T3 20020325; ES 2168708 T3 20020616; PT 976465 E 20020531