WO2002012596A3 - Continuous electrolytic pickling method for metallic products using alternate current supplied cells - Google Patents

Continuous electrolytic pickling method for metallic products using alternate current supplied cells Download PDF

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Publication number
WO2002012596A3
WO2002012596A3 PCT/IT2001/000435 IT0100435W WO0212596A3 WO 2002012596 A3 WO2002012596 A3 WO 2002012596A3 IT 0100435 W IT0100435 W IT 0100435W WO 0212596 A3 WO0212596 A3 WO 0212596A3
Authority
WO
WIPO (PCT)
Prior art keywords
pickling method
alternate current
current supplied
continuous electrolytic
electrolytic pickling
Prior art date
Application number
PCT/IT2001/000435
Other languages
French (fr)
Other versions
WO2002012596A9 (en
WO2002012596A2 (en
Inventor
Leonardo Pacelli
Vincenzo Ferrari
Stefano Luperi
Mauro Campioni
Bruno Ferri
Original Assignee
Ct Sviluppo Materiali Spa
Leonardo Pacelli
Ferrari Vicenzo
Stefano Luperi
Camioni Mauro
Bruno Ferri
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, Leonardo Pacelli, Ferrari Vicenzo, Stefano Luperi, Camioni Mauro, Bruno Ferri filed Critical Ct Sviluppo Materiali Spa
Priority to AU2001282513A priority Critical patent/AU2001282513A1/en
Priority to EP01961136A priority patent/EP1307609B1/en
Priority to US10/344,254 priority patent/US20040031696A1/en
Priority to CNB018150063A priority patent/CN1318652C/en
Priority to DE60102387T priority patent/DE60102387T2/en
Priority to AT01961136T priority patent/ATE262057T1/en
Publication of WO2002012596A2 publication Critical patent/WO2002012596A2/en
Publication of WO2002012596A3 publication Critical patent/WO2002012596A3/en
Publication of WO2002012596A9 publication Critical patent/WO2002012596A9/en

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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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Electrolytic Production Of Metals (AREA)

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 °C and 95 °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.
PCT/IT2001/000435 2000-08-10 2001-08-06 Continuous electrolytic pickling method for metallic products using alternate current supplied cells WO2002012596A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2001282513A AU2001282513A1 (en) 2000-08-10 2001-08-06 Continuous electrolytic pickling method for metallic products using alternate current supplied cells
EP01961136A EP1307609B1 (en) 2000-08-10 2001-08-06 Continuous electrolytic pickling method for metallic products using alternate current supplied cells
US10/344,254 US20040031696A1 (en) 2000-08-10 2001-08-06 Continous electrolytic pickling method for metallic products using alternate current supplied cells
CNB018150063A CN1318652C (en) 2000-08-10 2001-08-06 Continuous electrolytic pickling method for metallic products using alternate current suplied cells
DE60102387T DE60102387T2 (en) 2000-08-10 2001-08-06 METHOD FOR CONTINUOUS ELECTROLYTICIZING OF METALS USING AC-SUSTAINED CELLS
AT01961136T ATE262057T1 (en) 2000-08-10 2001-08-06 METHOD FOR CONTINUOUS ELECTROLYTIC PICKLING OF METALS USING ALTERNATING CURRENT CELLS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2000A000456 2000-08-10
IT2000RM000456A IT1317896B1 (en) 2000-08-10 2000-08-10 CONTINUOUS ELECTROLYTIC PICKLING METHOD OF METAL PRODUCTS CONCELLS POWERED BY ALTERNATING CURRENT.

Publications (3)

Publication Number Publication Date
WO2002012596A2 WO2002012596A2 (en) 2002-02-14
WO2002012596A3 true WO2002012596A3 (en) 2002-04-25
WO2002012596A9 WO2002012596A9 (en) 2002-11-28

Family

ID=11454885

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2001/000435 WO2002012596A2 (en) 2000-08-10 2001-08-06 Continuous electrolytic pickling method for metallic products using alternate current supplied 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
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
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
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
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
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713153A (en) * 1985-07-12 1987-12-15 N. V. Bekaert S. A. Process and apparatus for cleaning by electrochemical pickling with alternating current of specified frequency
SU1723209A1 (en) * 1988-11-30 1992-03-30 Уральский научно-исследовательский институт трубной промышленности Method for electrochemical pickling of steel articles
US5786556A (en) * 1993-05-09 1998-07-28 Swedish Pickling Ab Method and a device for pickling of stainless steel
WO2000015880A1 (en) * 1998-09-11 2000-03-23 Henkel Kommanditgesellschaft Auf Aktien Process for electrolytic pickling using nitric acid-free solutions

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USRE19773E (en) * 1935-12-03 Euectrocleanuxg process
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US2408424A (en) * 1940-06-15 1946-10-01 Monsanto Chemicals Pickling steels
US4214961A (en) * 1979-03-01 1980-07-29 Swiss Aluminium Ltd. Method and apparatus for continuous electrochemical treatment of a metal web
US4813395A (en) * 1987-04-27 1989-03-21 Allied Corporation Two-cycle engine and method of operation
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
AT401183B (en) * 1995-02-15 1996-07-25 Andritz Patentverwaltung METHOD FOR REGENERATING ELECTROLYTES, ESPECIALLY NA2SO4 FROM STAINLESS STEEL, IN PARTICULAR STAINLESS STEEL TAPES
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
GB2358194B (en) * 2000-01-17 2004-07-21 Ea Tech Ltd Electrolytic treatment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713153A (en) * 1985-07-12 1987-12-15 N. V. Bekaert S. A. Process and apparatus for cleaning by electrochemical pickling with alternating current of specified frequency
SU1723209A1 (en) * 1988-11-30 1992-03-30 Уральский научно-исследовательский институт трубной промышленности Method for electrochemical pickling of steel articles
US5786556A (en) * 1993-05-09 1998-07-28 Swedish Pickling Ab Method and a device for pickling of stainless steel
WO2000015880A1 (en) * 1998-09-11 2000-03-23 Henkel Kommanditgesellschaft Auf Aktien Process for electrolytic pickling using nitric acid-free solutions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199311, Derwent World Patents Index; Class M11, AN 1993-091747, XP002190381 *

Also Published As

Publication number Publication date
EP1307609B1 (en) 2004-03-17
US20040031696A1 (en) 2004-02-19
EP1307609A2 (en) 2003-05-07
DE60102387T2 (en) 2005-03-24
WO2002012596A9 (en) 2002-11-28
CN1318652C (en) 2007-05-30
ES2220795T3 (en) 2004-12-16
AU2001282513A1 (en) 2002-02-18
ITRM20000456A1 (en) 2002-02-10
CN1451058A (en) 2003-10-22
ATE262057T1 (en) 2004-04-15
WO2002012596A2 (en) 2002-02-14
DE60102387D1 (en) 2004-04-22
ITRM20000456A0 (en) 2000-08-10
IT1317896B1 (en) 2003-07-15

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