EP 2212450 A1 20100804 - METHOD AND DEVICE FOR RELEASING ANODE BASE THIMBLES, IN PARTICULAR FOR ANODES USED FOR THE PRODUCTION OF ALUMINIUM BY IGNEOUS ELECTROLYSIS
Title (en)
METHOD AND DEVICE FOR RELEASING ANODE BASE THIMBLES, IN PARTICULAR FOR ANODES USED FOR THE PRODUCTION OF ALUMINIUM BY IGNEOUS ELECTROLYSIS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ABLÖSUNG VON ANODENBASISKAPPEN, INSBESONDERE FÜR ZUR HERSTELLUNG VON ALUMINIUM DURCH ELEKTROLYSE VERWENDETE ANODEN
Title (fr)
PROCEDE ET DISPOSITIF POUR DETACHER LES TIMBALES DES PIEDS D'ANODES, NOTAMMENT D'ANODES UTILISEES POUR LA PRODUCTION D'ALUMINIUM PAR ELECTROLYSE IGNEE
Publication
Application
Priority
- FR 2008001574 W 20081107
- FR 0707989 A 20071114
Abstract (en)
[origin: WO2009098367A1] The invention relates to a method for the single-step removal of thimbles attached to the rods of a base of an anode stem, that comprises the following steps: a) placing said anode stem between an abutment device and an etching device, the abutment device at least partially surrounding each of the rods of said anode stem and having an abutment surface blocking the advance of the corresponding thimble; moving the etching device in the direction of the abutment device until said anode base is in contact with said abutment device; c) carrying on the movement of the etching device so that each thimble blocked by the associated abutment surface is detached from the corresponding rod; d) interrupting and removing the etching device. The method comprises using an abutment device including at least two abutment surfaces located at an axial distance from each other such that the thimbles blocked by a first abutment surface are disconnected from the rods before the other thimbles are blocked by the other abutment surface.
IPC 8 full level
C25C 3/12 (2006.01)
CPC (source: EP US)
C25C 3/125 (2013.01 - EP US); Y10T 29/49718 (2015.01 - EP US); Y10T 29/49721 (2015.01 - EP US); Y10T 29/49726 (2015.01 - EP US); Y10T 83/04 (2015.04 - EP US); Y10T 83/748 (2015.04 - EP US)
Citation (search report)
See references of WO 2009098367A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2923495 A1 20090515; FR 2923495 B1 20091120; AU 2008350084 A1 20090813; AU 2008350084 B2 20120719; CA 2706320 A1 20090813; CA 2706320 C 20160621; CN 102317507 A 20120111; EP 2212450 A1 20100804; EP 2212450 B1 20120808; RU 2010123922 A 20111220; RU 2496921 C2 20131027; US 2010229700 A1 20100916; US 8099848 B2 20120124; WO 2009098367 A1 20090813; ZA 201003045 B 20110831
DOCDB simple family (application)
FR 0707989 A 20071114; AU 2008350084 A 20081107; CA 2706320 A 20081107; CN 200880115882 A 20081107; EP 08872038 A 20081107; FR 2008001574 W 20081107; RU 2010123922 A 20081107; US 74308708 A 20081107; ZA 201003045 A 20100430