EP 2334846 A1 20110622 - METHOD AND INSTALLATION FOR ELECTROLYTIC TINNING OF A CONTINUOUSLY RUNNING STEEL STRIP IN AN ELECTRODEPOSITION UNIT
Title (en)
METHOD AND INSTALLATION FOR ELECTROLYTIC TINNING OF A CONTINUOUSLY RUNNING STEEL STRIP IN AN ELECTRODEPOSITION UNIT
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ELEKTROLYTISCHEN VERZINNUNG EINES SICH KONTINUIERLICH BEWEGENDEN STAHLBANDS IN EINER VORRICHTUNG ZUR ELEKTROLYTISCHEN ABSCHEIDUNG
Title (fr)
METHODE ET INSTALLATION D'ETAMAGE ELECTROLYTIQUE D'UNE BANDE D'ACIER EN DEFILEMENT CONTINU DANS UNE UNITE D'ELECTRODEPOSITION
Publication
Application
Priority
- FR 2008001535 W 20081031
- FR 2008001441 W 20081014
Abstract (en)
[origin: WO2010043774A1] Method and installation for electrolytic tinning of a continuously running steel strip in an electrodeposition unit. The present invention describes a method for the electrolytic tinning of a continuously running steel strip (1) in an electrodeposition unit (3) with an insoluble anode (23) in an electrolyte and having, in line, an electrodissolution reactor (6) intended to recharge the electrolyte with tin ions by selective separation through an electrodialysis or electrolysis membrane (10) which divides said electrodissolution reactor (6) into an anodic compartment (6b) comprising a first electrode (122b) connected to the positive terminal of an electric current supply circuit (12) and a cathodic compartment (6a) comprising a second electrode (121a) connected to the negative terminal of the same electric circuit, and for which a control member of the electrodissolution reactor engages a first change in the polarity of the electric current supply of each of the two electrodes, the control member ensuring, in a manner adjoining the first change, a second change of the circulation of the electrolyte between each of the two compartments of the electrodissolution reactor and the electrodeposition unit, the adjoining and periodic changes in the polarity of the electric current supply of the electrodissolution unit and of the circulation of the electrolyte returning to the electrodeposition unit ensure a continuous withdrawal of the electrolyte via alternating cycles from one or the other of the two compartments by attributing to said compartment an anodic electrodissolution function by means of a soluble electrode, two alternating cycles of continuous withdrawal are defined by similar durations. An installation that implements this electrolytic tinning method is also presented. A major objective of the invention is for the continuity in the recharging of the electrolyte to be effectively ensured.
IPC 8 full level
C25D 21/14 (2006.01); C25D 21/18 (2006.01)
CPC (source: EP)
C25D 21/14 (2013.01); C25D 21/18 (2013.01)
Citation (search report)
See references of WO 2010043776A1
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)
WO 2010043774 A1 20100422; CN 102187017 A 20110914; CN 102187017 B 20131225; EP 2334846 A1 20110622; EP 2334846 B1 20121128; ES 2400474 T3 20130410; RU 2011119502 A 20121127; RU 2476630 C2 20130227; WO 2010043776 A1 20100422
DOCDB simple family (application)
FR 2008001441 W 20081014; CN 200880131534 A 20081031; EP 08877379 A 20081031; ES 08877379 T 20081031; FR 2008001535 W 20081031; RU 2011119502 A 20081031