EP 1307609 B1 20040317 - CONTINUOUS ELECTROLYTIC PICKLING METHOD FOR METALLIC PRODUCTS USING ALTERNATE CURRENT SUPPLIED CELLS
Title (en)
CONTINUOUS ELECTROLYTIC PICKLING METHOD FOR METALLIC PRODUCTS USING ALTERNATE CURRENT SUPPLIED CELLS
Title (de)
METHODE ZUM KONTINUIERLICHEN ELEKTROLYTISCHEN BEIZEN VON METALLEN MITTELS WECHSELSTROM GESPEISTEN ZELLEN
Title (fr)
PROCEDE DE DECAPAGE ELECTROLYTIQUE CONTINU POUR PRODUITS METALLIQUES UTILISANT DES CELLULES ALIMENTEES EN COURANT ALTERNATIF
Publication
Application
Priority
- IT 0100435 W 20010806
- IT RM20000456 A 20000810
Abstract (en)
[origin: WO0212596A2] Continuous electrolytic pickling method for steels, Nickel, superalloys, Titanium and alloys thereof, characterised in that the material to be treated , for a time comprised between 3 sec and 60 sec, is immersed into or passes through at least one electrolytic cell with an electrolytic solution consisting of a neutral or acid aqueous solution, at a temperature comprised between 20 DEG C and 95 DEG C, with at least one pair of electrodes connected to an alternate current power supply having a frequency ranging from 1 Hz to 1000 Hz, the electrolysis being carried out at a current density having an effective amplitude ranging from 10 A/dm2 to 250 A/dm2. The Figure depicts the progress of the weight loss of an AISI 409 (X6CrTi12) steel as a function of the application time of an embodiment of the pickling method according to the present invention.
IPC 1-7
IPC 8 full level
C07K 7/08 (2006.01); C07K 14/47 (2006.01); C25F 1/04 (2006.01); C25F 1/06 (2006.01); G01N 27/30 (2006.01); G01N 27/333 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0212596 A2 20020214; WO 0212596 A3 20020425; WO 0212596 A9 20021128; AT E262057 T1 20040415; AU 8251301 A 20020218; CN 1318652 C 20070530; CN 1451058 A 20031022; DE 60102387 D1 20040422; DE 60102387 T2 20050324; EP 1307609 A2 20030507; EP 1307609 B1 20040317; ES 2220795 T3 20041216; IT 1317896 B1 20030715; IT RM20000456 A0 20000810; IT RM20000456 A1 20020210; US 2004031696 A1 20040219
DOCDB simple family (application)
IT 0100435 W 20010806; AT 01961136 T 20010806; AU 8251301 A 20010806; CN 01815006 A 20010806; DE 60102387 T 20010806; EP 01961136 A 20010806; ES 01961136 T 20010806; IT RM20000456 A 20000810; US 34425403 A 20030825