ATE262057T1 - METHOD FOR CONTINUOUS ELECTROLYTIC PICKLING OF METALS USING ALTERNATING CURRENT CELLS - Google Patents

METHOD FOR CONTINUOUS ELECTROLYTIC PICKLING OF METALS USING ALTERNATING CURRENT CELLS

Info

Publication number
ATE262057T1
ATE262057T1 AT01961136T AT01961136T ATE262057T1 AT E262057 T1 ATE262057 T1 AT E262057T1 AT 01961136 T AT01961136 T AT 01961136T AT 01961136 T AT01961136 T AT 01961136T AT E262057 T1 ATE262057 T1 AT E262057T1
Authority
AT
Austria
Prior art keywords
metals
alternating current
continuous electrolytic
electrolytic pickling
sec
Prior art date
Application number
AT01961136T
Other languages
German (de)
Inventor
L Pacelli
V Ferrari
Stefano Luperi
Mauro Campioni
Bruno Ferri
Original Assignee
Ct Sviluppo Materiali Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ct Sviluppo Materiali Spa filed Critical Ct Sviluppo Materiali Spa
Application granted granted Critical
Publication of ATE262057T1 publication Critical patent/ATE262057T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C25F1/06—Iron or steel

Abstract

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 (X6CrTil2) steel as a function of the application time of an embodiment of the pickling method according to the present invention.
AT01961136T 2000-08-10 2001-08-06 METHOD FOR CONTINUOUS ELECTROLYTIC PICKLING OF METALS USING ALTERNATING CURRENT CELLS ATE262057T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000RM000456A IT1317896B1 (en) 2000-08-10 2000-08-10 CONTINUOUS ELECTROLYTIC PICKLING METHOD OF METAL PRODUCTS CONCELLS POWERED BY ALTERNATING CURRENT.
PCT/IT2001/000435 WO2002012596A2 (en) 2000-08-10 2001-08-06 Continuous electrolytic pickling method for metallic products using alternate current supplied cells

Publications (1)

Publication Number Publication Date
ATE262057T1 true ATE262057T1 (en) 2004-04-15

Family

ID=11454885

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01961136T ATE262057T1 (en) 2000-08-10 2001-08-06 METHOD FOR CONTINUOUS ELECTROLYTIC PICKLING OF METALS USING ALTERNATING CURRENT CELLS

Country Status (9)

Country Link
US (1) US20040031696A1 (en)
EP (1) EP1307609B1 (en)
CN (1) CN1318652C (en)
AT (1) ATE262057T1 (en)
AU (1) AU2001282513A1 (en)
DE (1) DE60102387T2 (en)
ES (1) ES2220795T3 (en)
IT (1) IT1317896B1 (en)
WO (1) WO2002012596A2 (en)

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DE10160318A1 (en) * 2001-12-07 2003-06-18 Henkel Kgaa Process for pickling martensitic or ferritic stainless steel
DE102008057151A1 (en) * 2008-11-13 2010-05-27 Henkel Ag & Co. Kgaa Process for producing an electrolytically galvanized high strength steel sheet
CN102260899B (en) * 2010-05-25 2013-04-03 宝山钢铁股份有限公司 Method for removing scale on surface of titanium/titanium alloy strip
US20120168320A1 (en) * 2010-12-30 2012-07-05 Monique Chauntia Bland System and method for scale removal from a nickel-based superalloy component
JP6144006B2 (en) * 2011-01-17 2017-06-07 Ｊｆｅスチール株式会社 Method for producing stainless steel for fuel cell separator, stainless steel for fuel cell separator, fuel cell separator, and fuel cell
CN103014824A (en) * 2011-09-21 2013-04-03 李文志 Low carbon type alternating current electrochemical degreasing process method
ITMI20130493A1 (en) 2013-03-29 2014-09-30 Tenova Spa METHOD TO PROCESS THE SURFACE OF A STAINLESS STEEL LAMINATE IN A CONTINUOUS SOLFORIC ACID SOLUTION
ITMI20130494A1 (en) 2013-03-29 2014-09-30 Tenova Spa METHOD OF TREATING CONTINUOUSLY THE SURFACE OF A STAINLESS STEEL LAMINATE IN A CHLORIDRID ACID-BASED SOLUTION
DE102015202963A1 (en) * 2015-02-18 2016-08-18 Ulrich Schekulin Method and device for chemically removing material by opening edge structuring
CN107525061A (en) * 2017-08-23 2017-12-29 大唐东北电力试验研究所有限公司 A kind of power plant boiler boiler tube dirt, which measures, determines system and method
CN107525062A (en) * 2017-08-23 2017-12-29 大唐东北电力试验研究所有限公司 A kind of thermal power plant's superheater tube sample dirt, which measures, determines system and method
JP7177425B2 (en) * 2017-12-28 2022-11-24 株式会社日本科学エンジニアリング Electropolishing liquid for stainless steel
CN110512217A (en) * 2019-09-23 2019-11-29 中冶南方工程技术有限公司 A kind of 201 austenitic stainless steel of cold rolling is without nitric acid acidwashing technique
CN110592600A (en) * 2019-09-23 2019-12-20 中冶南方工程技术有限公司 Nitric acid-free pickling process for cold-rolled 430 ferrite stainless steel
CN110528009A (en) * 2019-09-23 2019-12-03 中冶南方工程技术有限公司 A kind of 304 austenitic stainless steel of cold rolling is without nitric acid acidwashing technique
KR102286367B1 (en) * 2019-11-11 2021-08-05 주식회사 포스코 Manufacturing method of stainless steel for polymer fuel cell seperator
CN111621840A (en) * 2020-05-26 2020-09-04 大连理工大学 Bipolar electrochemical removal method for iron pollution on surface of titanium alloy
KR102497442B1 (en) * 2020-11-25 2023-02-08 주식회사 포스코 Austenitic stainless steel for polymer fuel cell separator with improved contact resistance and manufacturing method thereof
CN113788520A (en) * 2021-10-08 2021-12-14 北京首钢吉泰安新材料有限公司 Iron-chromium-aluminum pickling process, wastewater treatment method and wastewater treatment device

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JPH0726240B2 (en) * 1989-10-27 1995-03-22 ペルメレック電極株式会社 Electrolytic pickling or electrolytic degreasing method for steel sheet
AT399167B (en) * 1991-06-10 1995-03-27 Andritz Patentverwaltung METHOD AND DEVICE FOR ELECTROLYTICALLY STICKING CONTINUOUSLY CONTINUOUS ELECTRICALLY CONDUCTIVE GOODS
SE501561C2 (en) * 1993-05-09 1995-03-13 Swedish Pickling Ab Method and apparatus for machining stainless steel wherein the current is passed through the steel strip in its thickness direction
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IT1276955B1 (en) * 1995-10-18 1997-11-03 Novamax Itb S R L PICKLING AND PASSIVATION PROCESS OF STAINLESS STEEL WITHOUT THE USE OF NITRIC ACID
IT1302202B1 (en) * 1998-09-11 2000-07-31 Henkel Kgaa ELECTROLYTIC PICKLING PROCESS WITH SOLUTIONS FREE FROM ACIDONITRICO.
GB2358194B (en) * 2000-01-17 2004-07-21 Ea Tech Ltd Electrolytic treatment

Also Published As

Publication number Publication date
CN1451058A (en) 2003-10-22
DE60102387D1 (en) 2004-04-22
ITRM20000456A0 (en) 2000-08-10
ES2220795T3 (en) 2004-12-16
DE60102387T2 (en) 2005-03-24
CN1318652C (en) 2007-05-30
WO2002012596A2 (en) 2002-02-14
WO2002012596A3 (en) 2002-04-25
IT1317896B1 (en) 2003-07-15
EP1307609A2 (en) 2003-05-07
US20040031696A1 (en) 2004-02-19
ITRM20000456A1 (en) 2002-02-10
EP1307609B1 (en) 2004-03-17
WO2002012596A9 (en) 2002-11-28
AU2001282513A1 (en) 2002-02-18

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