GB1378458A - Currentless plating of solid bodies with nickel - Google Patents

Currentless plating of solid bodies with nickel

Info

Publication number
GB1378458A
GB1378458A GB2561073A GB2561073A GB1378458A GB 1378458 A GB1378458 A GB 1378458A GB 2561073 A GB2561073 A GB 2561073A GB 2561073 A GB2561073 A GB 2561073A GB 1378458 A GB1378458 A GB 1378458A
Authority
GB
United Kingdom
Prior art keywords
bath
nickel
solution
maintained
density
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
GB2561073A
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19722231939 external-priority patent/DE2231939C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1378458A publication Critical patent/GB1378458A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)

Abstract

Electroless nickel plating of surfaces comprising metals, metal alloys, plastic and ceramics is carried out employing a stable ammoniacal hypophosphite-containing nickel complex salt bath. The bath having a density of from 10 to 12 DEG Bé at 20 DEG C is admixed at short regular intervals, at a bath temperature of from 60 to 100 DEG C, with a concentrated ammoniacal nickel complex salt solution comprising nickel salt, sodium citrate, ammonium chloride and ammonia (supplementary solution A) and a concentrated sodium hypophosphite solution (supplementary solution B), such an amount of electrolyte being withdrawn periodically from the bath and being replaced by water, that the bath density is maintained between 12 and 30<o> Bé and the pH is maintained between 6 and 8. In continuous operation of the bath over long operating periods, uniformly bright, smooth, strongly adhesive and corrosion-resistant nickel coatings are obtained.
GB2561073A 1972-06-29 1973-05-29 Currentless plating of solid bodies with nickel Expired GB1378458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722231939 DE2231939C3 (en) 1972-06-29 Process for electroless nickel plating of surfaces made of metals, plastics and ceramics

Publications (1)

Publication Number Publication Date
GB1378458A true GB1378458A (en) 1974-12-27

Family

ID=5849206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2561073A Expired GB1378458A (en) 1972-06-29 1973-05-29 Currentless plating of solid bodies with nickel

Country Status (8)

Country Link
AT (1) AT323499B (en)
BE (1) BE801664A (en)
CH (1) CH610597A5 (en)
DK (1) DK145004C (en)
GB (1) GB1378458A (en)
IT (1) IT990763B (en)
LU (1) LU67885A1 (en)
NL (1) NL7307876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371573A (en) 1980-12-30 1983-02-01 Siemens Aktiengesellschaft Electroless deposition of nickel coatings and depositing baths therefor
US20090324804A1 (en) * 2006-02-02 2009-12-31 Enthone Inc. Method and device for coating substrate surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371573A (en) 1980-12-30 1983-02-01 Siemens Aktiengesellschaft Electroless deposition of nickel coatings and depositing baths therefor
US20090324804A1 (en) * 2006-02-02 2009-12-31 Enthone Inc. Method and device for coating substrate surfaces
EP1979511B1 (en) * 2006-02-02 2018-10-31 MacDermid Enthone Inc. Method for coating substrate surfaces

Also Published As

Publication number Publication date
DE2231939A1 (en) 1974-01-17
DK145004B (en) 1982-07-26
LU67885A1 (en) 1973-08-31
IT990763B (en) 1975-07-10
NL7307876A (en) 1974-01-02
CH610597A5 (en) 1979-04-30
AT323499B (en) 1975-07-10
DE2231939B2 (en) 1976-08-12
DK145004C (en) 1982-12-13
BE801664A (en) 1973-10-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee