EP0251080A3 - Process for metallising metallic articles by mechanical-chemical treatment - Google Patents

Process for metallising metallic articles by mechanical-chemical treatment Download PDF

Info

Publication number
EP0251080A3
EP0251080A3 EP87108839A EP87108839A EP0251080A3 EP 0251080 A3 EP0251080 A3 EP 0251080A3 EP 87108839 A EP87108839 A EP 87108839A EP 87108839 A EP87108839 A EP 87108839A EP 0251080 A3 EP0251080 A3 EP 0251080A3
Authority
EP
European Patent Office
Prior art keywords
bath
workpieces
soluble organic
water
carboxylic acid
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.)
Ceased
Application number
EP87108839A
Other languages
German (de)
French (fr)
Other versions
EP0251080A2 (en
Inventor
Bernd Tolkmit
Friedhelm Prior
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.)
Neugebauer Erich Dr
Original Assignee
Neugebauer Erich Dr
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 Neugebauer Erich Dr filed Critical Neugebauer Erich Dr
Publication of EP0251080A2 publication Critical patent/EP0251080A2/en
Publication of EP0251080A3 publication Critical patent/EP0251080A3/en
Ceased legal-status Critical Current

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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
    • C23C18/1675—Process conditions
    • C23C18/1683—Control of electrolyte composition, e.g. measurement, adjustment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zum Aufbringen met­ allischer Überzüge auf metallische Werkstücke durch mech­ anisch-chemisches Behandeln der Werkstücke in einem in­ erte Prallkörper enthaltenen Bad, indem eine Relativbewegung zwischen Werkstücken und Prallkörpern bzw. Bad erzeugt wird, und dem ein Promotor und das den Überzug bildende Metall beigegeben werden, wobei, um zu vermeiden, daß Metalle in Lösung gehen und eine damit ver­ bundene Wasserstoffentwicklung auftritt, spätestens vor und/oder während der Zugabe des den Überzug bildenden Metalls eine Säurezugabe unter Verwendung mindestens einer wasserlöslichen organischen Carbonsäure oder unter Verwendung einer Kombination aus mindestens einer wasserlöslichen organischen Carbonsäure und/oder deren Salze mit mindestens einer Mineralsäure in einer solchen Menge erfolgt, daß der pH-Wert des Bades zu Beginn der Metallaufbringung etwa im Bereich größer 2,5 - 4,5 und an ihrem Ende etwa im Bereich von 3 - 7 liegt. The invention relates to a method for applying met allic coatings on metallic workpieces by mech anicochemical treatment of the workpieces in one erte impact body contained bath by a Relative movement between workpieces and impact bodies or bath is generated, and the one promoter and the Plating-forming metal can be added, taking to avoid that metals go into solution and ver bound hydrogen evolution occurs, at the latest before and / or during the addition of the coating Metal using an acid addition at least a water-soluble organic carboxylic acid or under Use a combination of at least one water-soluble organic carboxylic acid and / or their Salts with at least one mineral acid in one Quantity occurs that the pH of the bath at the beginning of the Metal application approximately in the range greater than 2.5 - 4.5 and on their end is in the range of 3-7.

EP87108839A 1986-06-19 1987-06-19 Process for metallising metallic articles by mechanical-chemical treatment Ceased EP0251080A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3620586 1986-06-19
DE3620586 1986-06-19
EP87105921 1987-04-23
EP87105921 1987-04-23

Publications (2)

Publication Number Publication Date
EP0251080A2 EP0251080A2 (en) 1988-01-07
EP0251080A3 true EP0251080A3 (en) 1989-07-05

Family

ID=25844771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108839A Ceased EP0251080A3 (en) 1986-06-19 1987-06-19 Process for metallising metallic articles by mechanical-chemical treatment

Country Status (4)

Country Link
EP (1) EP0251080A3 (en)
DK (1) DK314687A (en)
FI (1) FI872700A (en)
NO (1) NO872562L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524615C2 (en) 1999-06-30 2004-09-07 Volvo Personvagnar Ab Arrangements for reducing galvanic corrosion between metal components

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1771816A1 (en) * 1967-07-17 1972-02-03 Minnesota Mining & Mfg Mechanical plating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1771816A1 (en) * 1967-07-17 1972-02-03 Minnesota Mining & Mfg Mechanical plating

Also Published As

Publication number Publication date
DK314687D0 (en) 1987-06-19
EP0251080A2 (en) 1988-01-07
NO872562L (en) 1987-12-21
FI872700A0 (en) 1987-06-17
FI872700A (en) 1987-12-20
DK314687A (en) 1987-12-20
NO872562D0 (en) 1987-06-18

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Inventor name: TOLKMIT BERND

Inventor name: PRIOR FRIEDHELM