EP3099847A1 - Bain électrolytique - Google Patents

Bain électrolytique

Info

Publication number
EP3099847A1
EP3099847A1 EP14825092.1A EP14825092A EP3099847A1 EP 3099847 A1 EP3099847 A1 EP 3099847A1 EP 14825092 A EP14825092 A EP 14825092A EP 3099847 A1 EP3099847 A1 EP 3099847A1
Authority
EP
European Patent Office
Prior art keywords
electrolytic bath
silver
nickel
content
bath according
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.)
Withdrawn
Application number
EP14825092.1A
Other languages
German (de)
English (en)
Inventor
Alexander Meyerovich
Frank Brode
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.)
Harting Stiftung and Co KG
Original Assignee
Harting AG and Co KG
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 Harting AG and Co KG filed Critical Harting AG and Co KG
Publication of EP3099847A1 publication Critical patent/EP3099847A1/fr
Withdrawn legal-status Critical Current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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/46—Electroplating: Baths therefor from solutions of silver
    • 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
    • C25D3/64—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of silver

Definitions

  • the invention relates to an electrolytic bath according to the preamble of independent claim 1.
  • Such electrolytic baths are used for surface coating of metallic workpieces, in particular for
  • SU 66 23 23 A1 shows an electrolytic bath, for the deposition of a silver-nickel alloy on substrates.
  • US 2005/0035843 A1 describes an electrolytic deposition of a silver-nickel alloy on a metallic surface with a nickel content of up to 4% by weight (weight percent). This one
  • deposited silver-nickel layer has a low
  • the object of the invention is to generate an electrolytic bath for the deposition of thermostable silver-nickel alloys with high abrasion resistance and a low electrical resistance.
  • the electrolytic bath proposed herein is intended for depositing bright silver-nickel alloy coatings.
  • the electrolytic bath consists essentially of an aqueous solution of 15 to 30 grams per liter (g / L) of silver in the form of
  • Potassium silver cyanide 3 - 15 g / L nickel in the form of tetracyanonickelate, and 10 to 20 g / L potassium carbonate.
  • the electrolytic bath contains 220 g / L of potassium cyanate.
  • the electrolytic bath contains 220 g / L of potassium cyanate.
  • the electrolytic bath contains surfactants from the
  • Suitable surfactants are, for example:
  • Anionic surfactants such as sodium pasminate,
  • Nonionic surfactants for example partial fatty acid esters, polyhydric alcohols, for example glyceryl monostearate, partial fatty acid esters of sorbitan such as sorbitan monostearate or monooleate, sorbitan sesquioleate, esters of polyethylene glycol sorbitan such as monolaurate, onostearate or
  • Monooleate Also suitable are polyhydroxyethylene fatty alcohol ethers, polyhydroxyethylene fatty acid esters, ethylene oxide-propylene oxide block copolymers or ethoxylated triglycerides.
  • Amphoteric tenisde such as betaines and sulfobetaines of the general formula
  • Turkish red oil is basically an anionic surfactant which is used as wetting agent in dyeing plants (emulsifier, foaming agent). In electroplating this surfactant has not been used before.
  • the electrolytic bath of the present invention provides excellent glossy silver-nickel alloy coatings on metallic ones
  • the deposited alloy layer from the bath which is subject to a low tarnish insensitivity. This effect is particularly advantageous for the practical application of the proposed electrolytic bath.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

L'invention concerne un bain électrolytique pour le dépôt d'alliages argent-nickel brillants sur des substrats, constitué par une solution aqueuse, contenant un composé ionique à teneur en argent de 15 à 30 g/L, de préférence du cyanure de potassium-argent, un complexe de nickel à teneur en nickel de 3-15 g/L, de préférence du tétracyanonickelate, et 10 à 20 g/L de carbonate de potassium.
EP14825092.1A 2014-01-27 2014-11-24 Bain électrolytique Withdrawn EP3099847A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014100862.6A DE102014100862B4 (de) 2014-01-27 2014-01-27 Elektrolytisches Bad
PCT/DE2014/100412 WO2015110099A1 (fr) 2014-01-27 2014-11-24 Bain électrolytique

Publications (1)

Publication Number Publication Date
EP3099847A1 true EP3099847A1 (fr) 2016-12-07

Family

ID=52338774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14825092.1A Withdrawn EP3099847A1 (fr) 2014-01-27 2014-11-24 Bain électrolytique

Country Status (3)

Country Link
EP (1) EP3099847A1 (fr)
DE (1) DE102014100862B4 (fr)
WO (1) WO2015110099A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1690963A1 (fr) * 2003-10-31 2006-08-16 The Furukawa Electric Co., Ltd. Bande inoxydable recouverte d'argent pour contact mobile et procede de production associe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807576A (en) * 1955-01-18 1957-09-24 Hanson Van Winkle Munning Co Bright silver plating
SU662323A1 (ru) 1973-07-16 1979-05-15 Всесоюзный Научно-Исследовательский Инструментальный Институт Способ шлифовани
SU662623A1 (ru) * 1976-07-26 1979-05-15 Вильнюсский Ордена Трудового Красного Знамени Государственный Университет Им.В.Капсукаса Электролит дл осаждени сплава серебро-никель
US7628903B1 (en) * 2000-05-02 2009-12-08 Ishihara Chemical Co., Ltd. Silver and silver alloy plating bath
US6828898B2 (en) * 2003-04-03 2004-12-07 Cts Corporation Fuel tank resistor card having improved corrosion resistance
KR100888015B1 (ko) * 2008-09-26 2009-03-09 주식회사 네오스코 은-니켈 합금 전기 도금액 및 그 도금액에 의해 도금된 은-니켈 합금
CN102242382A (zh) * 2010-05-11 2011-11-16 铜陵金力铜材有限公司 一种生产航空、航天高尖端产品所用的镀银导体的生产方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1690963A1 (fr) * 2003-10-31 2006-08-16 The Furukawa Electric Co., Ltd. Bande inoxydable recouverte d'argent pour contact mobile et procede de production associe

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
S GLASSTONE ET AL: "THE ELECTRO-DEPOSITION OF SILVER FROM ARGENTOCYANIDE SOLUTIONS. PART II", 21 April 1931 (1931-04-21), pages 309 - 312, XP055397781, Retrieved from the Internet <URL:http://pubs.rsc.org/en/Content/ArticlePDF/1931/TF/TF9312700309> [retrieved on 20170810] *
See also references of WO2015110099A1 *

Also Published As

Publication number Publication date
DE102014100862A1 (de) 2015-08-13
DE102014100862B4 (de) 2018-02-08
WO2015110099A1 (fr) 2015-07-30

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