SE445933B - Forfarande for paforing av ett ytskikt pa foremal av aluminium och aluminiumlegeringar - Google Patents

Forfarande for paforing av ett ytskikt pa foremal av aluminium och aluminiumlegeringar

Info

Publication number
SE445933B
SE445933B SE8404762A SE8404762A SE445933B SE 445933 B SE445933 B SE 445933B SE 8404762 A SE8404762 A SE 8404762A SE 8404762 A SE8404762 A SE 8404762A SE 445933 B SE445933 B SE 445933B
Authority
SE
Sweden
Prior art keywords
aluminium
objects
procedure
applying
surface layer
Prior art date
Application number
SE8404762A
Other languages
English (en)
Other versions
SE8404762L (sv
SE8404762D0 (sv
Inventor
Alfred Serbinski
Waldemar Serbinski
Original Assignee
Alfred Serbinski
Waldemar Serbinski
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 Alfred Serbinski, Waldemar Serbinski filed Critical Alfred Serbinski
Priority to SE8404762A priority Critical patent/SE445933B/sv
Publication of SE8404762D0 publication Critical patent/SE8404762D0/sv
Priority to AU49641/85A priority patent/AU4964185A/en
Priority to PCT/SE1985/000367 priority patent/WO1986001836A1/en
Priority to EP19850905002 priority patent/EP0194310A1/en
Publication of SE8404762L publication Critical patent/SE8404762L/sv
Priority to FI862191A priority patent/FI862191A/fi
Priority to DK245986A priority patent/DK245986D0/da
Publication of SE445933B publication Critical patent/SE445933B/sv

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/34—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in more than one step
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12—Light metals
    • C23G1/125—Light metals aluminium
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/22—Light metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/54—Electroplating of non-metallic surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Resistance Heating (AREA)

Description

84Û4762°0 Metoder för galvanisering av aluminium med mangan är i och för sig I allmänt kända. Enligt uppfinningen har det visat sig möjligt att åstadkomma kraftig vidhâftning av en sådan manganbeläggning till underlaget av aluminium eller aluminiumlegering och att samtidigt ge beläggningen de förutnämnda goda egenskaperna beträffande beständighet mot slitage och friktion. Detta åstadkommas genom uppfinningen genom värmebehandling av manganskiktet och införlivande av syre och kväve i detta.
Värmebehandlingen enligt uppfinningen genomföras företrädesvis vid en temperatur av 753-883 K. Värmebehandlingstiden är företrädesvis 0.5-fi.0> timmar. lnförlivandet av syre och kväve i skiktet genomföras företrädesvis genom värmebehandling i en atmosfär som avger kväve och syre till mangan- skiktet under värmebehandlingen. företrädesvis en oxideringsbehandling i en oxiderande atmosfär. företrädesvis en atmosfär innehållande vattenånga. företrädesvis under en tid av minst 0.5 timmar och upp till 1.5 timmar. samt en nitreringsbehandling. företrädesvis i ammoniak eller krackad ammoniak. företrädesvis under en tid av'0.5 timmar och upp till 6.0 timmar.
' Denna oxíderande och nitrerande behandling genomföras företrädesvis vid en temperatur av 753-003 K och lämpligen samtidigt med den förutnämnda värme- behandlingen.
Med förfarandet enligt uppfinningen erhålles på ytan av aluminium och aluminiumlegeringar ett ytbeläggningsskikt av komposittyp. som kännetecknas av hög hårdhet och mycket god vidhäftningsförmåga samt minskad friktions- koefficient.
Den maximala hårdheten i skiktet förekommer vanligen på ett visst avstånd från ytan. liksom vid nitreringsprocessen. och kan överstiga HV 0.01 = 1000.
Förfarandet enligt uppfinningen kan i princip användas på alla slags föremål av aluminium och aluminiumlegeringar. t.ex. på föremål för förbränningsmotorer. såsom explosions- och dieselmotorer. såsom kolvar och liknande. samt generellt för föremål av aluminium och aluminiumlegeringar som är utsatta för slitage och/eller skall uppvisa låg friktion 8404762-0 Uppfinningen beskrivas närmare med följande utföringsexempel.
Exemgel _ l Underlag: aluminiumföre-mål. som avfettas i lösning av: H20 273 ml NasPOq 13.5 g NaOH 2.1 g Na2SiO3 10.5 g Temperatur 323 K under 5 minuter. Sedan sköljes föremålet i varmt och kallt vatten. därefter doppas det i en lösning av: HCI 0.580 l MnSDqåHZD 7 g H20 1.76 I Denna behandling genomföras vid en temperatur av 310 K och under 15-30 sekunder. Efter noggrann sköljning i vatten underkastas aluminium- föremålet direkt en elektrolytisk manganering med Följande elektrolyt: MnSOWSHZD 200 g/I [NHq] 2504 75 g/l H20 beroende av elektrolytbehållarens volym.
Elektrolytens temperatur 283-288 K.pH = 7.0 Strömtäthet [IH-lä] x 102 A/mz.
Vid den elektrolytiska manganeringsprooessen använder man legerande anoder av: Sn 30 % Do 0.1! % resten Pb Det år nödvändigt att omröra elektrolyten kontinuerligt och att använda diafragma För att åtskilja anoden Från katoden.
Direkt efter upptagningen från elektrolyten doppas föremålet i 5 X-ig lösning av: Na2Gr2ClT2H2O s4o4762-0 Efter elektrolytisk manganering underkastas aluminiumfñremâlet en oxideringsbehandling i vattenånga under 0.5 timmar och nitreringsbehandling i ammoniak under 2.0 timmar vid temperaturen 813 K.
Exempel 2 Underlag: aluminiumlegeringsföremål med sammansättningen: [Si ~ 123%, Cu = 0.9 %. Mg ='1.3 Z. Ni -= 0.9 Z. Fe ==r 0.3 X. resten All.
Füremålet avfettas i samma lösning och på samma sätt som i exempel 1.
Sedan skñljes föremålet i varmt och kallt vatten och därefter doppas det i en lösning av: Hmoa '15 x vuiym -HF 25 76 volym Denna behandling genumfñres vid en temperatur av 293 K och under 15-30 sekunder. Direkt därefter skñljes föremålet noggrant i vatten och underkastas en elektrolytisk manganering. Sammansättningen av elektrolyten och villkoren âr desamma som i exempel l.
Efter elektrolytisk manganering underkastas aluminiumlegeringsfñremålet _ en oxideringsbehandling i vattenånga under 1.5 timmar och nitreringsbehandling i ammoniak under 6,0 timmar vid temperaturen 753 K.
Ythårdheten efter oxiderings- och nitreringsbehandlingen kan överstiga HV 0.01 == 1000.

Claims (1)

1. 8404762-0 PATENTKRAV _ Förfarande för påföring av ett ytskikt på föremål av aluminium och aluminiumlegeringar. k ä n n e t e c k n a d därav. att föremålets yta belågges elektrolytískt med etl manganskikt varefter det med manganskíkt belagda föremålet underkastas en oxíderingsbehandling i vattenånga. sedan en nitreríngsbehandling iammoníak, båda vid en temperatur av 753 - B33 K. sammanlagda tiden 0.5 - 6.0 timmar. så att manganskiktet strukturellt förbíndas med föremålet.
SE8404762A 1984-09-24 1984-09-24 Forfarande for paforing av ett ytskikt pa foremal av aluminium och aluminiumlegeringar SE445933B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8404762A SE445933B (sv) 1984-09-24 1984-09-24 Forfarande for paforing av ett ytskikt pa foremal av aluminium och aluminiumlegeringar
AU49641/85A AU4964185A (en) 1984-09-24 1985-09-24 Coating process
PCT/SE1985/000367 WO1986001836A1 (en) 1984-09-24 1985-09-24 Process for forming a surface layer on aluminum and aluminum alloy articles and so formed articles
EP19850905002 EP0194310A1 (en) 1984-09-24 1985-09-24 Process for forming a surface layer on aluminum and aluminum alloy articles and so formed articles
FI862191A FI862191A (fi) 1984-09-24 1986-05-26 Belaeggningsfoerfarande.
DK245986A DK245986D0 (da) 1984-09-24 1986-05-26 Coating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8404762A SE445933B (sv) 1984-09-24 1984-09-24 Forfarande for paforing av ett ytskikt pa foremal av aluminium och aluminiumlegeringar

Publications (3)

Publication Number Publication Date
SE8404762D0 SE8404762D0 (sv) 1984-09-24
SE8404762L SE8404762L (sv) 1986-03-25
SE445933B true SE445933B (sv) 1986-07-28

Family

ID=20357101

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8404762A SE445933B (sv) 1984-09-24 1984-09-24 Forfarande for paforing av ett ytskikt pa foremal av aluminium och aluminiumlegeringar

Country Status (1)

Country Link
SE (1) SE445933B (sv)

Also Published As

Publication number Publication date
SE8404762L (sv) 1986-03-25
SE8404762D0 (sv) 1984-09-24

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