EP 0976465 A1 20000202 - 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
Application
Priority
EP 98113975 A 19980727
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
IPC 8 full level
B21C 1/12 (2006.01)
CPC (source: EP)
B21C 1/12 (2013.01)
Citation (search report)
- [X] US 3688532 A 19720905 - SILVA ANTONIO VICENTE
- [A] FR 1296207 A 19620615 - DAVY & UNITED ENG CO LTD
- [A] DE 3009779 A1 19801120 - THAELMANN SCHWERMASCHBAU VEB
- [A] EP 0524351 A1 19930127 - BEKAERT SA NV [BE]
- [X] PATENT ABSTRACTS OF JAPAN vol. 005, no. 112 (M - 079) 21 July 1981 (1981-07-21)
- [XA] PATENT ABSTRACTS OF JAPAN vol. 010, no. 365 (M - 542) 6 December 1986 (1986-12-06)
- [A] PATENT ABSTRACTS OF JAPAN vol. 002, no. 049 (E - 025) 6 April 1978 (1978-04-06)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0976465 A1 20000202; EP 0976465 B1 20011128; AT E209540 T1 20011215; DE 69802675 D1 20020110; DE 69802675 T2 20020912; DK 0976465 T3 20020325; ES 2168708 T3 20020616; PT 976465 E 20020531
DOCDB simple family (application)
EP 98113975 A 19980727; AT 98113975 T 19980727; DE 69802675 T 19980727; DK 98113975 T 19980727; ES 98113975 T 19980727; PT 98113975 T 19980727