EP1102875A2 - Bain alcalin de zinc-nickel - Google Patents

Bain alcalin de zinc-nickel

Info

Publication number
EP1102875A2
EP1102875A2 EP99940077A EP99940077A EP1102875A2 EP 1102875 A2 EP1102875 A2 EP 1102875A2 EP 99940077 A EP99940077 A EP 99940077A EP 99940077 A EP99940077 A EP 99940077A EP 1102875 A2 EP1102875 A2 EP 1102875A2
Authority
EP
European Patent Office
Prior art keywords
nickel
anode
bath
electroplating bath
zinc
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
EP99940077A
Other languages
German (de)
English (en)
Other versions
EP1102875B1 (fr
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(A2) "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/fr
Publication of EP1102875A2 publication Critical patent/EP1102875A2/fr
Application granted granted Critical
Publication of EP1102875B1 publication Critical patent/EP1102875B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

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 / applying zinc-nickel coatings with an anode, a cathode and an alkaline electrolyte.
  • 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 kept constant by adding zinc and the nickel concentration by adding a nickel solution, for example a nickel sulfate solution.
  • a nickel solution for example a nickel sulfate solution.
  • these baths show a color change from originally blue-violet to brown. This color intensifies after several days or weeks and the bath can be separated into two phases, the upper phase being dark brown.
  • This phase causes considerable disruptions in the coating of the workpieces, such as uneven layer thicknesses or the formation of bubbles.
  • Continuous cleaning of the bath ie continuous skimming of this layer, is therefore essential. However, this is time-consuming and costly.
  • cyanide can be detected in the baths after a few weeks of operation.
  • the cyanide load requires regular renewal of the bath and a special wastewater treatment, which has a significant impact on the operating costs of the bath. This is all the more so since the waste water has a very high organic concentration and with a COD value of approx. 15,000 to 20,000 mg / l complicates cyanide detoxification. Compliance with the waste water values specified by the legislator (nickel 0.5 ppm and zinc 2 ppm) is then only possible by extensive addition of chemicals.
  • the formation of the second phase is due to a reaction of the amines, which are converted in alkaline solution on nickel anodes to nitriles (including cyanide, among others). Due to the decomposition of the amines, new complexing agents must also be continuously added to the bath, which increases the costs of the process.
  • the invention is based on the problem of creating an alkaline zinc-nickel electroplating bath which provides high-quality zinc-nickel coatings at low cost.
  • the invention proposes to separate the anode from the alkaline electrolyte by means of an ion exchange membrane.
  • a cation exchange membrane made of a perfluorinated polymer has proven to be particularly advantageous, since these have negligible electrical resistance but 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.
  • the anode material that can be used in the electroplating cell according to the invention is anode, such as platinum-plated titanium anodes, since they are no longer exposed to the basic zinc-nickel bath.
  • Fig. 1 shows the schematic structure of an electroplating bath according to the invention.
  • the electroplating cell 1 shows an electroplating cell 1 which has an anode 2 and a cathode 3, which is the workpiece to be coated.
  • the catholyte 4 surrounding the anode is alkaline and consists of a zinc-nickel electroplating bath of known composition, in which amines are used as complexing agents for the nickel ions.
  • 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.
  • This membrane 6 enables an unimpeded flow of current through the bath, but prevents the catholyte 4, in particular the amines contained therein, from coming into contact with the anode 2, as a result of which the reactions detailed in the introduction to the description, including their adverse effects, are avoided.

Landscapes

  • 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)

Abstract

Bain de galvanoplastie alcalin dans lequel l'anode est séparée de l'électrolyte alcalin, pour éviter les réactions secondaires non désirées.
EP99940077A 1998-07-30 1999-07-29 Bain alcalin de zinc-nickel Revoked EP1102875B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03003890A EP1344850B1 (fr) 1998-07-30 1999-07-29 Bain Zinc-Nickel alcalin

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19834353 1998-07-30
DE19834353A DE19834353C2 (de) 1998-07-30 1998-07-30 Alkalisches Zink-Nickelbad
PCT/EP1999/005443 WO2000006807A2 (fr) 1998-07-30 1999-07-29 Bain alcalin de zinc-nickel

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP03003890A Division EP1344850B1 (fr) 1998-07-30 1999-07-29 Bain Zinc-Nickel alcalin
EP03003890.5 Division-Into 2003-02-21

Publications (2)

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

Family

ID=7875843

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03003890A Expired - Lifetime EP1344850B1 (fr) 1998-07-30 1999-07-29 Bain Zinc-Nickel alcalin
EP99940077A Revoked EP1102875B1 (fr) 1998-07-30 1999-07-29 Bain alcalin de zinc-nickel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03003890A Expired - Lifetime EP1344850B1 (fr) 1998-07-30 1999-07-29 Bain Zinc-Nickel alcalin

Country Status (22)

Country Link
US (4) US6602394B1 (fr)
EP (2) EP1344850B1 (fr)
JP (2) JP4716568B2 (fr)
KR (1) KR20010071074A (fr)
CN (1) CN1311830A (fr)
AT (2) ATE242821T1 (fr)
AU (1) AU5415299A (fr)
BG (1) BG105184A (fr)
BR (1) BR9912589A (fr)
CA (1) CA2339144A1 (fr)
CZ (1) CZ298904B6 (fr)
DE (3) DE19834353C2 (fr)
EE (1) EE200100059A (fr)
ES (2) ES2201759T3 (fr)
HR (1) HRP20010044B1 (fr)
HU (1) HUP0103951A3 (fr)
IL (1) IL141086A0 (fr)
MX (1) MXPA01000932A (fr)
PL (1) PL198149B1 (fr)
SK (1) SK285453B6 (fr)
TR (1) TR200100232T2 (fr)
WO (1) WO2000006807A2 (fr)

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DE19834353C2 (de) * 1998-07-30 2000-08-17 Hillebrand Walter Gmbh & Co Kg Alkalisches Zink-Nickelbad
US20060157355A1 (en) * 2000-03-21 2006-07-20 Semitool, Inc. Electrolytic process using anion permeable barrier
US8852417B2 (en) 1999-04-13 2014-10-07 Applied Materials, 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
ES2250166T5 (es) † 2000-06-15 2016-05-20 Coventya Inc Electrochapado de zinc-níquel
US6755960B1 (en) 2000-06-15 2004-06-29 Taskem Inc. Zinc-nickel electroplating
US7628898B2 (en) * 2001-03-12 2009-12-08 Semitool, Inc. Method and system for idle state operation
DE10223622B4 (de) * 2002-05-28 2005-12-08 Walter Hillebrand Gmbh & Co. Kg Galvanotechnik Alkalisches Zink-Nickelbad sowie entsprechende Galvanisierungsverfahren mit erhöhter Stromausbeute
WO2004108995A1 (fr) * 2003-06-03 2004-12-16 Taskem Inc. Electrodeposition de zinc et d'alliage de zinc
US8377283B2 (en) 2002-11-25 2013-02-19 Coventya, 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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US10156020B2 (en) 2015-07-22 2018-12-18 Dipsol Chemicals Co., Ltd. Zinc alloy plating method
CN106550607B (zh) 2015-07-22 2018-09-18 迪普索股份公司 锌合金镀敷方法
WO2017171113A1 (fr) * 2016-03-29 2017-10-05 (주) 테크윈 Bain électrolytique et procédé d'électrolyse
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
EP3358045A1 (fr) * 2017-02-07 2018-08-08 Dr.Ing. Max Schlötter GmbH & Co. KG Procédé de dépôt par placage de revêtements en zinc et en alliage de zinc à partir d'un bain de revêtement alcalin à élimination réduite des additifs de bain organiques
DK3415665T3 (da) 2017-06-14 2024-02-12 Dr Ing Max Schloetter Gmbh & Co Kg Fremgangsmåde til galvanisk udfældning af zink-nikkel-legeringsovertræk ud fra et alkalisk zink-nikkel-legeringsbad med reduceret nedbrydning af tilsætningsstoffer
ES2952069T3 (es) 2019-01-24 2023-10-26 Atotech Deutschland Gmbh & Co Kg Método para la deposición electrolítica una aleación de zinc-níquel usando un sistema de ánodo de membrana
CN110462107A (zh) 2019-02-15 2019-11-15 迪普索股份公司 锌或锌合金电镀方法和系统
JP6750186B1 (ja) 2019-11-28 2020-09-02 ユケン工業株式会社 めっき液の亜鉛濃度の上昇を抑制する方法および亜鉛系めっき部材の製造方法
JP2023507479A (ja) 2019-12-20 2023-02-22 アトテック ドイチュラント ゲー・エム・ベー・ハー ウント コー． カー・ゲー 亜鉛ニッケル合金を基材上に堆積するための方法およびシステム
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Also Published As

Publication number Publication date
DE59905937D1 (de) 2003-07-17
ATE242821T1 (de) 2003-06-15
BG105184A (en) 2001-10-31
IL141086A0 (en) 2002-02-10
ES2201759T3 (es) 2004-03-16
US20080164150A1 (en) 2008-07-10
HUP0103951A3 (en) 2003-05-28
HRP20010044A2 (en) 2001-12-31
MXPA01000932A (es) 2002-06-04
US6602394B1 (en) 2003-08-05
SK892001A3 (en) 2001-10-08
ES2277624T3 (es) 2007-07-16
SK285453B6 (sk) 2007-01-04
US20110031127A1 (en) 2011-02-10
CZ298904B6 (cs) 2008-03-05
EE200100059A (et) 2002-10-15
TR200100232T2 (tr) 2001-06-21
DE59914011D1 (de) 2007-01-04
WO2000006807A3 (fr) 2000-05-04
JP2008150713A (ja) 2008-07-03
JP2002521572A (ja) 2002-07-16
HUP0103951A2 (hu) 2002-02-28
CN1311830A (zh) 2001-09-05
AU5415299A (en) 2000-02-21
US7807035B2 (en) 2010-10-05
PL345970A1 (en) 2002-01-14
KR20010071074A (ko) 2001-07-28
US20040104123A1 (en) 2004-06-03
US8486235B2 (en) 2013-07-16
CA2339144A1 (fr) 2000-02-10
DE19834353C2 (de) 2000-08-17
ATE346180T1 (de) 2006-12-15
JP4716568B2 (ja) 2011-07-06
EP1344850B1 (fr) 2006-11-22
EP1102875B1 (fr) 2003-06-11
DE19834353A1 (de) 2000-02-03
WO2000006807A2 (fr) 2000-02-10
CZ2001189A3 (cs) 2001-08-15
EP1344850A1 (fr) 2003-09-17
PL198149B1 (pl) 2008-05-30
BR9912589A (pt) 2001-05-02
HRP20010044B1 (en) 2005-06-30

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