EP1903132A3 - Electropolishing method for cobalt and cobalt alloys - Google Patents

Electropolishing method for cobalt and cobalt alloys Download PDF

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Publication number
EP1903132A3
EP1903132A3 EP07018326A EP07018326A EP1903132A3 EP 1903132 A3 EP1903132 A3 EP 1903132A3 EP 07018326 A EP07018326 A EP 07018326A EP 07018326 A EP07018326 A EP 07018326A EP 1903132 A3 EP1903132 A3 EP 1903132A3
Authority
EP
European Patent Office
Prior art keywords
cobalt
sulfonic acid
alloys
electro
electropolishing method
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP07018326A
Other languages
German (de)
French (fr)
Other versions
EP1903132A2 (en
EP1903132B1 (en
Inventor
Siegfried Pießlinger-Schweiger
Olaf BÖHME
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Poligrat GmbH
Original Assignee
Poligrat GmbH
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 Poligrat GmbH filed Critical Poligrat GmbH
Publication of EP1903132A2 publication Critical patent/EP1903132A2/en
Publication of EP1903132A3 publication Critical patent/EP1903132A3/en
Application granted granted Critical
Publication of EP1903132B1 publication Critical patent/EP1903132B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/16—Polishing
    • C25F3/22—Polishing of heavy metals

Abstract

For electro-chemical polishing of cobalt and cobalt alloy surfaces, an electrolyte is used containing glycolic acid and at least one alkane sulfonic acid with an alkyl residue containing 1-3 carbon atoms. The alkane sulfonic acid includes methane sulfonic acid. The electro-chemical polishing is at a temperature of 40-70[deg] C with an anode current density of 5-25 A/dm 2>.
EP07018326A 2006-09-25 2007-09-18 Electropolishing method for cobalt and cobalt alloys Active EP1903132B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006045221A DE102006045221B3 (en) 2006-09-25 2006-09-25 Electropolishing process for cobalt and cobalt alloys and electrolyte

Publications (3)

Publication Number Publication Date
EP1903132A2 EP1903132A2 (en) 2008-03-26
EP1903132A3 true EP1903132A3 (en) 2010-08-25
EP1903132B1 EP1903132B1 (en) 2011-11-02

Family

ID=38616337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018326A Active EP1903132B1 (en) 2006-09-25 2007-09-18 Electropolishing method for cobalt and cobalt alloys

Country Status (7)

Country Link
US (1) US8080148B2 (en)
EP (1) EP1903132B1 (en)
JP (1) JP2008121110A (en)
AT (1) ATE531836T1 (en)
CA (1) CA2604387C (en)
DE (1) DE102006045221B3 (en)
ES (1) ES2374310T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9039887B2 (en) * 2012-05-14 2015-05-26 United Technologies Corporation Component finishing method and assembly
US10399166B2 (en) 2015-10-30 2019-09-03 General Electric Company System and method for machining workpiece of lattice structure and article machined therefrom
EP3551786B1 (en) 2016-12-09 2021-04-07 RENA Technologies Austria GmbH Electropolishing method and electrolyte for same
AT520365B1 (en) * 2017-08-29 2019-10-15 Hirtenberger Eng Surfaces Gmbh ELECTROLYTE FOR ELECTROPOLISHING METAL SURFACES
CN109778297B (en) * 2019-03-25 2020-12-15 山东吉威医疗制品有限公司 Electrochemical polishing solution for Co-Cr alloy bracket and polishing method thereof
CN110724999B (en) * 2019-10-23 2021-09-28 沈阳航空航天大学 Electrolyte for CoCrNi multi-principal-element alloy with high Cr content and corrosion process
CN112710529B (en) * 2020-12-18 2022-09-20 国电浙江北仑第三发电有限公司 Preparation method of sample simultaneously used for observation of HR3C precipitate after service and EBSD characterization
CN113481583B (en) * 2021-07-30 2022-07-12 南京铖联激光科技有限公司 Electrolyte solution and electrolysis method for cobalt-chromium alloy electrolytic corrosion for 3D printing
CN114908411A (en) * 2022-05-18 2022-08-16 潍坊赛宝工业技术研究院有限公司 Electrolytic polishing treatment material for surfaces of cobalt-chromium alloy precision parts and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645611A (en) * 1948-09-20 1953-07-14 Shwayder Bros Inc Method of and bath for electrolytic polishing
US2928777A (en) * 1950-12-16 1960-03-15 Electro Process Inc Electrolytic polishing of metals
JPS56152999A (en) * 1980-04-25 1981-11-26 Kinki Yakuhin Kogyo Kk Electrolytic polishing liqid of co-cr-type alloy
DE19640201A1 (en) * 1996-09-30 1998-04-02 Henkel Ecolab Gmbh & Co Ohg Surface cleaning agents
EP1894656A2 (en) * 2006-09-04 2008-03-05 Ebara Corporation Electrolytic liquid for electrolytic polishing and electrolytic polishing method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT54186B (en) 1911-03-06 1912-07-10 Wenzel Jirasko Card index box.
US2378002A (en) * 1940-12-20 1945-06-12 Himmel Brothers Company Electrolytic apparatus
US4678552A (en) * 1986-04-22 1987-07-07 Pennwalt Corporation Selective electrolytic stripping of metal coatings from base metal substrates
US7128825B2 (en) * 2001-03-14 2006-10-31 Applied Materials, Inc. Method and composition for polishing a substrate
US6679980B1 (en) 2001-06-13 2004-01-20 Advanced Cardiovascular Systems, Inc. Apparatus for electropolishing a stent
WO2004072332A1 (en) * 2003-02-12 2004-08-26 Ebara Corporation Polishing fluid, method of polishing, and polishing apparatus
DE102004045297A1 (en) * 2004-09-16 2006-03-23 Basf Ag A method of treating metallic surfaces using low methane sulfonic acid based formulations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645611A (en) * 1948-09-20 1953-07-14 Shwayder Bros Inc Method of and bath for electrolytic polishing
US2928777A (en) * 1950-12-16 1960-03-15 Electro Process Inc Electrolytic polishing of metals
JPS56152999A (en) * 1980-04-25 1981-11-26 Kinki Yakuhin Kogyo Kk Electrolytic polishing liqid of co-cr-type alloy
DE19640201A1 (en) * 1996-09-30 1998-04-02 Henkel Ecolab Gmbh & Co Ohg Surface cleaning agents
EP1894656A2 (en) * 2006-09-04 2008-03-05 Ebara Corporation Electrolytic liquid for electrolytic polishing and electrolytic polishing method

Also Published As

Publication number Publication date
DE102006045221B3 (en) 2008-04-03
US8080148B2 (en) 2011-12-20
EP1903132A2 (en) 2008-03-26
JP2008121110A (en) 2008-05-29
CA2604387C (en) 2012-07-03
US20080289970A1 (en) 2008-11-27
CA2604387A1 (en) 2008-03-25
ATE531836T1 (en) 2011-11-15
EP1903132B1 (en) 2011-11-02
ES2374310T3 (en) 2012-02-15

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