EP1102875B1 - Alkalisches zink-nickelbad - Google Patents

Alkalisches zink-nickelbad Download PDF

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Publication number
EP1102875B1
EP1102875B1 EP99940077A EP99940077A EP1102875B1 EP 1102875 B1 EP1102875 B1 EP 1102875B1 EP 99940077 A EP99940077 A EP 99940077A EP 99940077 A EP99940077 A EP 99940077A EP 1102875 B1 EP1102875 B1 EP 1102875B1
Authority
EP
European Patent Office
Prior art keywords
nickel
anode
zinc
bath
alkaline
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.)
Revoked
Application number
EP99940077A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1102875A2 (de
Inventor
Ernst-Walter Hillebrand
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.)
Walter Hillebrand & Co GmbH
Original Assignee
Walter Hillebrand & Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7875843&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1102875(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Walter Hillebrand & Co GmbH filed Critical Walter Hillebrand & Co GmbH
Priority to EP03003890A priority Critical patent/EP1344850B1/de
Publication of EP1102875A2 publication Critical patent/EP1102875A2/de
Application granted granted Critical
Publication of EP1102875B1 publication Critical patent/EP1102875B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/02—Tanks; Installations therefor
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/565—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of zinc
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation

Definitions

  • the invention relates to an electroplating bath for applying zinc-nickel coatings with an anode, a cathode and an alkaline electrolyte.
  • the alkaline zinc-nickel electroplating baths disclosed in German patent specification 37 12 511 have recently been used, which have the following composition, for example: 11.3 g / l ZnO 4.1 g / l NiSO 4 * 6H 2 O 120 g / l NaOH 5.1 g / l polyethyleneimine.
  • the amines contained in the electroplating bath serve as complexing agents for the nickel ions, which are otherwise insoluble in the alkaline medium.
  • the composition of the baths varies depending on the manufacturer.
  • the electroplating baths are usually operated with insoluble nickel anodes.
  • the zinc concentration is determined by adding zinc and the nickel concentration by adding a nickel solution, for example a nickel sulfate solution, kept constant.
  • the formation of the second phase is due to a reaction of the amines, that in alkaline solution on nickel anodes to nitriles (among others can also be converted to cyanide). Due to the decomposition of the amines new complexing agents must also be continuously added to the bath, which drives up the cost of the process.
  • Anodes other than nickel anodes cannot be used because of this dissolve in the alkaline electrolyte, which is also disadvantageous Effects on the quality of the coating.
  • the problem underlying the invention is an alkaline one To create zinc-nickel electroplating bath, which is inexpensive zinc-nickel coatings delivers high quality.
  • the invention proposes the anode of the to separate alkaline electrolyte through an ion exchange membrane.
  • a cation exchange membrane has proven to be particularly advantageous made out of a perfluorinated polymer, since this has negligible electrical resistance, however have a high chemical and mechanical resistance.
  • the zinc-nickel bath acts as a catholyte in the solution according to the invention.
  • sulfuric or phosphoric acid can be used as the anolyte become.
  • the anode material used in the electroplating cell according to the invention usual anodes, e.g. Platinized titanium anodes are eligible because of this are no longer exposed to the basic zinc-nickel bath.
  • the 1 shows an electroplating cell 1, which has an anode 2 and a cathode 3, which is the workpiece to be coated.
  • the the Catholyte 4 surrounding the cathode is alkaline and consists of a zinc-nickel electroplating bath known composition, in which as a complexing agent for Nickel ion amines are used.
  • the anolyte 5 surrounding the anode 2 can consist for example of sulfuric or phosphoric acid.
  • Anolyte 5 and catholyte 4 are separated from one another by a perfluorinated cation exchange membrane 6 Cut. This membrane 6 enables an unimpeded flow of current through the Bad, however, prevents the catholyte 4, especially those contained therein Amines, comes into contact with the anode 2, which results in the introduction to the description detailed reactions including their adverse effects be avoided.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
EP99940077A 1998-07-30 1999-07-29 Alkalisches zink-nickelbad Revoked EP1102875B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03003890A EP1344850B1 (de) 1998-07-30 1999-07-29 Alkalisches Zink-Nickelbad

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19834353A DE19834353C2 (de) 1998-07-30 1998-07-30 Alkalisches Zink-Nickelbad
DE19834353 1998-07-30
PCT/EP1999/005443 WO2000006807A2 (de) 1998-07-30 1999-07-29 Alkalisches zink-nickelbad

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP03003890A Division EP1344850B1 (de) 1998-07-30 1999-07-29 Alkalisches Zink-Nickelbad
EP03003890.5 Division-Into 2003-02-21

Publications (2)

Publication Number Publication Date
EP1102875A2 EP1102875A2 (de) 2001-05-30
EP1102875B1 true EP1102875B1 (de) 2003-06-11

Family

ID=7875843

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99940077A Revoked EP1102875B1 (de) 1998-07-30 1999-07-29 Alkalisches zink-nickelbad
EP03003890A Expired - Lifetime EP1344850B1 (de) 1998-07-30 1999-07-29 Alkalisches Zink-Nickelbad

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03003890A Expired - Lifetime EP1344850B1 (de) 1998-07-30 1999-07-29 Alkalisches Zink-Nickelbad

Country Status (22)

Country Link
US (4) US6602394B1 (pl)
EP (2) EP1102875B1 (pl)
JP (2) JP4716568B2 (pl)
KR (1) KR20010071074A (pl)
CN (1) CN1311830A (pl)
AT (2) ATE242821T1 (pl)
AU (1) AU5415299A (pl)
BG (1) BG105184A (pl)
BR (1) BR9912589A (pl)
CA (1) CA2339144A1 (pl)
CZ (1) CZ298904B6 (pl)
DE (3) DE19834353C2 (pl)
EE (1) EE200100059A (pl)
ES (2) ES2277624T3 (pl)
HR (1) HRP20010044B1 (pl)
HU (1) HUP0103951A3 (pl)
IL (1) IL141086A0 (pl)
MX (1) MXPA01000932A (pl)
PL (1) PL198149B1 (pl)
SK (1) SK285453B6 (pl)
TR (1) TR200100232T2 (pl)
WO (1) WO2000006807A2 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712660A1 (de) 2005-04-12 2006-10-18 Enthone Inc. Unlösliche Anode

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DE19834353C2 (de) * 1998-07-30 2000-08-17 Hillebrand Walter Gmbh & Co Kg Alkalisches Zink-Nickelbad
US8852417B2 (en) 1999-04-13 2014-10-07 Applied Materials, Inc. Electrolytic process using anion permeable barrier
US20060157355A1 (en) * 2000-03-21 2006-07-20 Semitool, Inc. Electrolytic process using anion permeable barrier
US8236159B2 (en) 1999-04-13 2012-08-07 Applied Materials Inc. Electrolytic process using cation permeable barrier
US20060189129A1 (en) * 2000-03-21 2006-08-24 Semitool, Inc. Method for applying metal features onto barrier layers using ion permeable barriers
DE10026956A1 (de) * 2000-05-30 2001-12-13 Walter Hillebrand Galvanotechn Zink-Legierungsbad
EP1292724B2 (en) † 2000-06-15 2015-12-23 Coventya, Inc. Zinc-nickel electroplating
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US8377283B2 (en) 2002-11-25 2013-02-19 Coventya, Inc. Zinc and zinc-alloy electroplating
WO2004108995A1 (en) * 2003-06-03 2004-12-16 Taskem Inc. Zinc and zinc-alloy electroplating
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FR2864553B1 (fr) * 2003-12-31 2006-09-01 Coventya Installation de depot de zinc ou d'alliages de zinc
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CN106987879A (zh) * 2016-11-23 2017-07-28 瑞尔太阳能投资有限公司 电沉积装置及其电沉积方法
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712660A1 (de) 2005-04-12 2006-10-18 Enthone Inc. Unlösliche Anode
US7666283B2 (en) 2005-04-12 2010-02-23 Enthone Inc. Insoluble anode

Also Published As

Publication number Publication date
HUP0103951A2 (hu) 2002-02-28
WO2000006807A3 (de) 2000-05-04
EP1102875A2 (de) 2001-05-30
US8486235B2 (en) 2013-07-16
PL345970A1 (en) 2002-01-14
HUP0103951A3 (en) 2003-05-28
EE200100059A (et) 2002-10-15
ATE346180T1 (de) 2006-12-15
BR9912589A (pt) 2001-05-02
ES2201759T3 (es) 2004-03-16
TR200100232T2 (tr) 2001-06-21
US20080164150A1 (en) 2008-07-10
DE19834353C2 (de) 2000-08-17
SK285453B6 (sk) 2007-01-04
EP1344850B1 (de) 2006-11-22
KR20010071074A (ko) 2001-07-28
EP1344850A1 (de) 2003-09-17
WO2000006807A2 (de) 2000-02-10
US6602394B1 (en) 2003-08-05
JP4716568B2 (ja) 2011-07-06
ATE242821T1 (de) 2003-06-15
MXPA01000932A (es) 2002-06-04
JP2008150713A (ja) 2008-07-03
JP2002521572A (ja) 2002-07-16
ES2277624T3 (es) 2007-07-16
CA2339144A1 (en) 2000-02-10
CN1311830A (zh) 2001-09-05
HRP20010044A2 (en) 2001-12-31
AU5415299A (en) 2000-02-21
DE59914011D1 (de) 2007-01-04
BG105184A (en) 2001-10-31
CZ298904B6 (cs) 2008-03-05
SK892001A3 (en) 2001-10-08
US20110031127A1 (en) 2011-02-10
PL198149B1 (pl) 2008-05-30
CZ2001189A3 (cs) 2001-08-15
DE59905937D1 (de) 2003-07-17
IL141086A0 (en) 2002-02-10
DE19834353A1 (de) 2000-02-03
US20040104123A1 (en) 2004-06-03
US7807035B2 (en) 2010-10-05
HRP20010044B1 (en) 2005-06-30

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