Global Patent Index - EP 1063306 A2

EP 1063306 A2 2000-12-27 - Joule effect continuous annealer for multiple wire drawing machines

Title (en)

Joule effect continuous annealer for multiple wire drawing machines

Title (de)

Durchlaufglühanlage für Mehrfachdrahtziehmaschinen mittels Joule-Effekt

Title (fr)

Dispositif de recuit continu par effet Joule pour machines de tréfilage multiple

Publication

EP 1063306 A2 (EN)

Application

EP 00201070 A

Priority

IT MI990650 A

Abstract (en)

A continuous joule effect annealer for multiple wire drawing machines comprises a capstan (5) for the dragging of the wires (2) that is made rotate at a constant speed by a first motor (6) and at least two contact rollers (12-14) that are engaged by said wires (2) and that are kept at an electric potential having alternate polarity with respect to one another and to the capstan. The contact rollers (12-14) are made rotate by a second motor (15) that is independent from the first one (6). Between said capstan (5) and said contact rollers (12-14) an idle roller (17) is interposed that is suitable to detect the degree of tensioning of the wires (2) that are being treated and to operate on a speed governor (21, 22) that is associated with said second motor (15) in order to govern the rotation speed of the contact rollers (12-14) to such a value as to assure a tangential speed of the same rollers equal to the wires' dragging speed (2). <IMAGE>

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

C21D 9/62

IPC 8 full level (invention and additional information)

C21D 9/62 (2006.01); C21D 8/06 (2006.01)

CPC (invention and additional information)

C21D 9/62 (2013.01); C21D 8/06 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

EP 1063306 A2 20001227; EP 1063306 A3 20031008; IT 1312036 B1 20020404; IT MI990650 A1 20001002

INPADOC legal status


2004-04-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030401

2003-10-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2003-10-08 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL LT LV MK RO SI

2000-12-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-12-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI