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JPS6468479A - Double-layer electroless plating method - Google Patents

Double-layer electroless plating method

Info

Publication number
JPS6468479A
JPS6468479A JP22562287A JP22562287A JPS6468479A JP S6468479 A JPS6468479 A JP S6468479A JP 22562287 A JP22562287 A JP 22562287A JP 22562287 A JP22562287 A JP 22562287A JP S6468479 A JPS6468479 A JP S6468479A
Authority
JP
Japan
Prior art keywords
nano3
contg
double
treatment
electroless plating
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.)
Pending
Application number
JP22562287A
Other languages
Japanese (ja)
Inventor
Yoshinori Takakura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP22562287A priority Critical patent/JPS6468479A/en
Publication of JPS6468479A publication Critical patent/JPS6468479A/en
Pending 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
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1646—Characteristics of the product obtained
    • C23C18/165—Multilayered product
    • C23C18/1651—Two or more layers only obtained by electroless plating
    • 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
    • C23C18/54—Contact plating, i.e. electroless electrochemical plating

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)
  • Electrochemistry (AREA)
  • Chemically Coating (AREA)

Abstract

PURPOSE:To form double-layered plating having excellent electrical conductivity, corrosion resistance and heat radiatability by subjecting the surface of Mg or an Mg alloy to degreasing and cleaning, then pickling the surface with an aq. soln. contg. chromate of a specific compsn. and further subjecting the surface to an activation treatment and Zn substn. treatment, then to electroless plating of Cu, Ni, Au, etc. CONSTITUTION:After the surface of the member made of the Mg or Mg alloy is degreased and cleaned, the surface is pickled by the aq. soln. contg. 1-3mol. CrO3 and contg., in addition thereto, 0.16-0.8mol. HNO3, 0.25-1.0mol. HF or 0.12-0.35mol. NaNO3, 0.03-0.13mol. CaF2 or 0.12-0.35mol. NaNO3, 0.05-0.27mol. NH4F or 0.51-1.53mol. phosphoric acid or 0.12-0.35mol. NaNO3, and 0.01-0.24mol. NaF. The surface is in succession subjected to the activation treatment and the Zn substitution treatment and is then electroless plated with Cu, Ni, Au or Cu and Au in the double layers.
JP22562287A 1987-09-09 1987-09-09 Double-layer electroless plating method Pending JPS6468479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22562287A JPS6468479A (en) 1987-09-09 1987-09-09 Double-layer electroless plating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22562287A JPS6468479A (en) 1987-09-09 1987-09-09 Double-layer electroless plating method

Publications (1)

Publication Number Publication Date
JPS6468479A true JPS6468479A (en) 1989-03-14

Family

ID=16832197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22562287A Pending JPS6468479A (en) 1987-09-09 1987-09-09 Double-layer electroless plating method

Country Status (1)

Country Link
JP (1) JPS6468479A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5534296A (en) * 1992-09-17 1996-07-09 Rieger; Franz Process for the pre-treatment of light metals and articles produced
KR100431125B1 (en) * 2001-11-16 2004-05-12 주식회사 에이치 제이 텍 Double electroless nikel plating method by pre-treatment process of magnesium and magnesium alloy
KR100453994B1 (en) * 2002-03-14 2004-10-26 주식회사 에이치 제이 텍 Two layer non-electrolysis nickel coating method by dynamic etching of magnesium and magnesium alloy
GB2405859A (en) * 2003-09-09 2005-03-16 Melvyn Burrell A lift for use in a vehicle inspection pit
JP2008190572A (en) * 2007-02-02 2008-08-21 Nippon Densan Corp Manufacturing method of hydrodynamic bearing and motor using its hydrodynamic bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5534296A (en) * 1992-09-17 1996-07-09 Rieger; Franz Process for the pre-treatment of light metals and articles produced
KR100431125B1 (en) * 2001-11-16 2004-05-12 주식회사 에이치 제이 텍 Double electroless nikel plating method by pre-treatment process of magnesium and magnesium alloy
KR100453994B1 (en) * 2002-03-14 2004-10-26 주식회사 에이치 제이 텍 Two layer non-electrolysis nickel coating method by dynamic etching of magnesium and magnesium alloy
GB2405859A (en) * 2003-09-09 2005-03-16 Melvyn Burrell A lift for use in a vehicle inspection pit
JP2008190572A (en) * 2007-02-02 2008-08-21 Nippon Densan Corp Manufacturing method of hydrodynamic bearing and motor using its hydrodynamic bearing

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