IT1241638B - Metodo per la preparazione di dischi di memoria in alluminio aventi un finish liscio placcato - Google Patents

Metodo per la preparazione di dischi di memoria in alluminio aventi un finish liscio placcato

Info

Publication number
IT1241638B
IT1241638B IT67773A IT6777390A IT1241638B IT 1241638 B IT1241638 B IT 1241638B IT 67773 A IT67773 A IT 67773A IT 6777390 A IT6777390 A IT 6777390A IT 1241638 B IT1241638 B IT 1241638B
Authority
IT
Italy
Prior art keywords
preparing aluminum
memory discs
plated finish
smooth plated
aluminum memory
Prior art date
Application number
IT67773A
Other languages
English (en)
Italian (it)
Other versions
IT9067773A0 (it
IT9067773A1 (it
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 IT9067773A0 publication Critical patent/IT9067773A0/it
Publication of IT9067773A1 publication Critical patent/IT9067773A1/it
Application granted granted Critical
Publication of IT1241638B publication Critical patent/IT1241638B/it

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
IT67773A 1989-10-12 1990-10-10 Metodo per la preparazione di dischi di memoria in alluminio aventi un finish liscio placcato IT1241638B (it)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
IT9067773A0 IT9067773A0 (it) 1990-10-10
IT9067773A1 IT9067773A1 (it) 1992-04-10
IT1241638B true IT1241638B (it) 1994-01-25

Family

ID=23667915

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67773A IT1241638B (it) 1989-10-12 1990-10-10 Metodo per la preparazione di dischi di memoria in alluminio aventi un finish liscio placcato

Country Status (9)

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

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 (de) * 1996-04-18 1997-10-23 Univ Dresden Tech Verfahren zur Metallisierung von chemisch nicht oder schwer plattierbaren Metalloberflächen
DE19815220C2 (de) * 1998-03-27 2003-12-18 Univ Dresden Tech Verfahren zur haftfesten und dichten chemischen oder galvanischen Metallisierung von Substraten sowie Haftvermittler zur Durchführung des Verfahrens
DE10246453A1 (de) 2002-10-04 2004-04-15 Enthone Inc., West Haven Verfahren zur stromlosen Abscheidung von Nickel
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 (ja) 2011-01-25 2015-10-21 東洋鋼鈑株式会社 ハードディスク装置用アルミニウム基板の製造方法
DE102011115802B4 (de) * 2011-10-12 2015-03-12 C. Hafner Gmbh + Co. Kg Verfahren zur Korrosionsschutzbehandlung eines Werkstücks aus einem Aluminiumwerkstoff, insbesondere aus einer Aluminiumknetlegierung
JP5890235B2 (ja) 2012-04-10 2016-03-22 東洋鋼鈑株式会社 ハードディスク用基板の製造方法
DE102012018159A1 (de) * 2012-09-14 2014-03-20 Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg Verfahren zum Beschichten von Aluminiumleitern
US9770757B2 (en) 2015-08-13 2017-09-26 GM Global Technology Operations LLC Method of making sound interface in overcast bimetal components
DE102019112883A1 (de) * 2019-05-16 2020-11-19 Pac Tech - Packaging Technologies Gmbh Beschichtungsbad zur stromlosen Beschichtung eines Substrats

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 (de) * 1959-08-29 1960-09-29 Jenaer Glaswerk Schott & Gen Optisches Kronglas
DE1254935B (de) * 1960-12-31 1967-11-23 Bayer Ag Waessriges Bad zur chemischen Abscheidung von borhaltigen Metallueberzuegen
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 (ja) * 1984-10-30 1986-05-24 Nippon Paint Co Ltd アルミニウム表面洗浄剤

Also Published As

Publication number Publication date
NL194398B (nl) 2001-11-01
CH684275A5 (fr) 1994-08-15
IT9067773A0 (it) 1990-10-10
FR2653138B1 (fr) 1993-12-10
DE4032232A1 (de) 1991-04-18
DE4032232C2 (de) 1994-04-07
GB2237032A (en) 1991-04-24
JPH03236476A (ja) 1991-10-22
MX171954B (es) 1993-11-24
IT9067773A1 (it) 1992-04-10
FR2653138A1 (fr) 1991-04-19
NL9002225A (nl) 1991-05-01
NL194398C (nl) 2002-03-04
GB2237032B (en) 1993-10-06
GB9022266D0 (en) 1990-11-28
ES2027496A6 (es) 1992-06-01

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961029