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MX171954B - METHOD OF PREPARING MEMORY DISCS THAT HAVE A UNIFORM METALLIC PLATED FINISH - Google Patents

METHOD OF PREPARING MEMORY DISCS THAT HAVE A UNIFORM METALLIC PLATED FINISH

Info

Publication number
MX171954B
MX171954B MX022826A MX2282690A MX171954B MX 171954 B MX171954 B MX 171954B MX 022826 A MX022826 A MX 022826A MX 2282690 A MX2282690 A MX 2282690A MX 171954 B MX171954 B MX 171954B
Authority
MX
Mexico
Prior art keywords
uniform metallic
memory discs
metallic plated
plated finish
effective amount
Prior art date
Application number
MX022826A
Other languages
Spanish (es)
Inventor
Eugene F Yarkosky
Patricia A Cacciatore
Original Assignee
Enthone
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 Enthone filed Critical Enthone
Publication of MX171954B publication Critical patent/MX171954B/en

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
    • C23C18/16—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
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
    • 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)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

La presente invención se refiere a un metodo para depositar un recubrimiento metálico sin electrolitos uniforme sobre un substrato de aluminio que comprende: a) aplicar un recubrimiento de zincato sobre el aluminio usando un procedimiento de doble zincato en el cual el baño de ácido nítrico usado para tratar el primer substrato recubierto con zincato comprende una cantidad efectiva de un ión del grupo VIII; y b) chapear el substrato de aluminio zincateado usando un baño de chapeado metálico sin electrolitos conteniendo una cantidad efectiva de iones de cadmio.The present invention relates to a method of depositing a uniform electrolyte-free metal coating on an aluminum substrate comprising: a) applying a zinc coating to the aluminum using a double zinc coating procedure in which the nitric acid bath used to treating the first zincate coated substrate comprises an effective amount of a group VIII ion; and b) plating the zinc plated aluminum substrate using an electrolyte-free metal plating bath containing an effective amount of cadmium ions.

MX022826A 1989-10-12 1990-10-11 METHOD OF PREPARING MEMORY DISCS THAT HAVE A UNIFORM METALLIC PLATED FINISH MX171954B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42080589A 1989-10-12 1989-10-12

Publications (1)

Publication Number Publication Date
MX171954B true MX171954B (en) 1993-11-24

Family

ID=23667915

Family Applications (1)

Application Number Title Priority Date Filing Date
MX022826A MX171954B (en) 1989-10-12 1990-10-11 METHOD OF PREPARING MEMORY DISCS THAT HAVE A UNIFORM METALLIC PLATED FINISH

Country Status (9)

Country Link
JP (1) JPH03236476A (en)
CH (1) CH684275A5 (en)
DE (1) DE4032232C2 (en)
ES (1) ES2027496A6 (en)
FR (1) FR2653138B1 (en)
GB (1) GB2237032B (en)
IT (1) IT1241638B (en)
MX (1) MX171954B (en)
NL (1) NL194398C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182006A (en) * 1991-02-04 1993-01-26 Enthone-Omi Inc. Zincate solutions for treatment of aluminum and aluminum alloys
DE19615201A1 (en) * 1996-04-18 1997-10-23 Univ Dresden Tech Metallising metal surfaces which are difficult to plate
DE19815220C2 (en) * 1998-03-27 2003-12-18 Univ Dresden Tech Process for the adherent and dense chemical or galvanic metallization of substrates as well as adhesion promoter to carry out the process
DE10246453A1 (en) 2002-10-04 2004-04-15 Enthone Inc., West Haven Electrolyte used in process for high speed electroless plating with nickel film having residual compressive stress is based on nickel acetate and also contains reducing agent, chelant, accelerator and stabilizer
US7407689B2 (en) * 2003-06-26 2008-08-05 Atotech Deutschland Gmbh Aqueous acidic immersion plating solutions and methods for plating on aluminum and aluminum alloys
JP5796963B2 (en) 2011-01-25 2015-10-21 東洋鋼鈑株式会社 Method for manufacturing aluminum substrate for hard disk drive
DE102011115802B4 (en) * 2011-10-12 2015-03-12 C. Hafner Gmbh + Co. Kg Process for the corrosion protection treatment of a workpiece made of an aluminum material, in particular of an aluminum wrought alloy
JP5890235B2 (en) 2012-04-10 2016-03-22 東洋鋼鈑株式会社 Manufacturing method of hard disk substrate
DE102012018159A1 (en) * 2012-09-14 2014-03-20 Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg Continuous coating of electrical conductors of aluminum or aluminum alloy present in wire- and band form, comprises subjecting aluminum conductor to degreasing, activation of surface in an alkaline bath or coating with desired coating layer
US9770757B2 (en) 2015-08-13 2017-09-26 GM Global Technology Operations LLC Method of making sound interface in overcast bimetal components
DE102019112883B4 (en) * 2019-05-16 2024-05-16 Pac Tech - Packaging Technologies Gmbh Coating bath for electroless coating of a substrate

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929742A (en) * 1957-03-05 1960-03-22 Minjer Clara Hinderina De Electroless deposition of nickel
DE1089934B (en) * 1959-08-29 1960-09-29 Jenaer Glaswerk Schott & Gen Optical crown glass
DE1254935B (en) * 1960-12-31 1967-11-23 Bayer Ag Aqueous bath for chemical deposition of boron-containing metal coatings
US3719525A (en) * 1969-01-09 1973-03-06 Control Data Corp Magnetic record members having a protective recording surface and method of making
US3738818A (en) * 1971-06-03 1973-06-12 Control Data Corp High recording density magnetic media with square b-h loop
GB1359595A (en) * 1972-02-29 1974-07-10 Vandervell Products Ltd Bearings for railway vehicle axles
US4150172A (en) * 1977-05-26 1979-04-17 Kolk Jr Anthony J Method for producing a square loop magnetic media for very high density recording
US4346128A (en) * 1980-03-31 1982-08-24 The Boeing Company Tank process for plating aluminum substrates including porous aluminum castings
US4411730A (en) * 1980-10-01 1983-10-25 United Technologies Corporation Selective chemical milling of recast surfaces
AU555641B2 (en) * 1984-03-05 1986-10-02 Omi International Corp. Aqueous electroless nickel plating bath
JPS61106783A (en) * 1984-10-30 1986-05-24 Nippon Paint Co Ltd Cleaner for surface of aluminum

Also Published As

Publication number Publication date
IT9067773A0 (en) 1990-10-10
GB2237032A (en) 1991-04-24
ES2027496A6 (en) 1992-06-01
NL194398B (en) 2001-11-01
GB2237032B (en) 1993-10-06
FR2653138B1 (en) 1993-12-10
DE4032232A1 (en) 1991-04-18
IT1241638B (en) 1994-01-25
GB9022266D0 (en) 1990-11-28
DE4032232C2 (en) 1994-04-07
JPH03236476A (en) 1991-10-22
NL9002225A (en) 1991-05-01
NL194398C (en) 2002-03-04
IT9067773A1 (en) 1992-04-10
FR2653138A1 (en) 1991-04-19
CH684275A5 (en) 1994-08-15

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