ES368186A1 - Improvements in or relating to high-rate electrolytic nickel-plating methods, and installations - Google Patents

Improvements in or relating to high-rate electrolytic nickel-plating methods, and installations

Info

Publication number
ES368186A1
ES368186A1 ES368186A ES368186A ES368186A1 ES 368186 A1 ES368186 A1 ES 368186A1 ES 368186 A ES368186 A ES 368186A ES 368186 A ES368186 A ES 368186A ES 368186 A1 ES368186 A1 ES 368186A1
Authority
ES
Spain
Prior art keywords
nico3
pump
automatic
sodium
optionally
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.)
Expired
Application number
ES368186A
Other languages
Spanish (es)
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.)
Societe Le Nickel SLN SA
Original Assignee
Societe Le Nickel SLN SA
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 Societe Le Nickel SLN SA filed Critical Societe Le Nickel SLN SA
Publication of ES368186A1 publication Critical patent/ES368186A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00Processes for servicing or operating cells for electrolytic coating
    • C25D21/16Regeneration of process solutions
    • C25D21/18Regeneration of process solutions of electrolytes
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00Processes for servicing or operating cells for electrolytic coating
    • C25D21/12Process control or regulation
    • C25D21/14Controlled addition of electrolyte components

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)

Abstract

A continuous, automatic process for electrodepositing mator bright nickel using insoluble anodes (e.g. of lead) and a bath of an aqueous solution comprising NiSO4 (e.g. providing 70-110 g/l Ni ion) buffered by H3BO3 (e.g. 30-50 g/l) at a pH of 2À8-4À8 and containing one or more stable organic additions, such as sodium lauryl sulphate as wetting agent and optionally (for bright deposits) sodium naphthalene 1, 3, 6-trisulphonate, sodium benzoyl sulphimide, 2-propyne 1-ol and coumarin as brighteners and levelling agents, is carried out at a cathode current density of 5-40 amp/sq dm and a temperature of 50-85 C, the plating bath being recycled and filtered continuously, and regenerated automatically by adding before filtration an aqueous dispersion of Ni (OH)2 or NiCO3 containing the organic additive(s), monitored by the variation in pH outside the above range. As shown, an installation for carrying out the process comprises: at least one Ni-plating tank 1 having insoluble lead anodes and cathode-forming articles to be plated suspended from bars supplied with rectified D.C. a recycling circuit 18, 7, 16 for the Ni-plating bath including a heat transfer device 2 for maintaining the temperature, a pump 3 and a valve 4 in a duct 7, connected to which is a pH recording meter 17 an automatic electrolyte regenerating circuit 19, 21, 15 branched off the recycling circuit, including a Wurtz pump 6 for drawing up the NiCOH)2 or NiCO3 in container 8 via a regulating valve 9, a Raschig dissolution column 10 (optionally with a gas extraction column 13 for NiCO3 ), a filtration pump 11 with a filter 12 at the outlet and an automatic regulation line connecting the pH recording meter 17 to the regulating valve 9 by electromechanical means 20. Specification 1, 80, 119 is referred to.
ES368186A 1968-05-31 1969-05-28 Improvements in or relating to high-rate electrolytic nickel-plating methods, and installations Expired ES368186A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR153519 1968-05-31

Publications (1)

Publication Number Publication Date
ES368186A1 true ES368186A1 (en) 1971-05-01

Family

ID=8650750

Family Applications (1)

Application Number Title Priority Date Filing Date
ES368186A Expired ES368186A1 (en) 1968-05-31 1969-05-28 Improvements in or relating to high-rate electrolytic nickel-plating methods, and installations

Country Status (10)

Country Link
AT (1) AT288807B (en)
BE (1) BE733362A (en)
BR (1) BR6909403D0 (en)
CH (1) CH498939A (en)
DE (1) DE1926462A1 (en)
ES (1) ES368186A1 (en)
FR (1) FR1582093A (en)
GB (1) GB1213267A (en)
LU (1) LU58676A1 (en)
NL (1) NL6908307A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045304A (en) * 1976-05-05 1977-08-30 Electroplating Engineers Of Japan, Ltd. High speed nickel plating method using insoluble anode
FR2352077A1 (en) * 1976-05-17 1977-12-16 Electroplating Eng High speed plating of metal with nickel layer - using insoluble anode and controlling nickel ion concn in bath
DE3144128C1 (en) * 1981-11-06 1983-06-09 Bayerische Motoren Werke AG, 8000 München Device for the galvanic deposition of a metal on a metallic workpiece
CA2236933A1 (en) * 1997-06-18 1998-12-18 Atotech Deutschland Gmbh Electroplating of low-stress nickel
CN108827820A (en) * 2018-07-04 2018-11-16 大冶有色金属有限责任公司 The detection method of suspension content in a kind of electrolyte
CN113061967A (en) * 2021-04-20 2021-07-02 山王电子(无锡)有限公司 Electroplating wire nickel gold solution recycling water recycling system
CN115787053A (en) * 2022-11-21 2023-03-14 南通赛可特电子有限公司 High-stability electroplating additive and preparation method thereof

Also Published As

Publication number Publication date
FR1582093A (en) 1969-09-26
AT288807B (en) 1971-03-25
CH498939A (en) 1970-11-15
BE733362A (en) 1969-11-03
GB1213267A (en) 1970-11-25
NL6908307A (en) 1969-12-02
BR6909403D0 (en) 1973-01-09
DE1926462A1 (en) 1969-12-04
LU58676A1 (en) 1969-08-28

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