EP3978655A3 - Method for producing layered film structure and piston for internal combustion engine - Google Patents

Method for producing layered film structure and piston for internal combustion engine Download PDF

Info

Publication number
EP3978655A3
EP3978655A3 EP21200000.4A EP21200000A EP3978655A3 EP 3978655 A3 EP3978655 A3 EP 3978655A3 EP 21200000 A EP21200000 A EP 21200000A EP 3978655 A3 EP3978655 A3 EP 3978655A3
Authority
EP
European Patent Office
Prior art keywords
film structure
layered film
piston
combustion engine
internal combustion
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
EP21200000.4A
Other languages
German (de)
French (fr)
Other versions
EP3978655A2 (en
EP3978655A8 (en
Inventor
Shinya Masuhara
Shimpei KAWANAKA
Masahiro Fujita
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor 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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Publication of EP3978655A2 publication Critical patent/EP3978655A2/en
Publication of EP3978655A3 publication Critical patent/EP3978655A3/en
Publication of EP3978655A8 publication Critical patent/EP3978655A8/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/024—Anodisation under pulsed or modulated current or potential
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/30—Anodisation of magnesium or alloys based thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

[Problem to be Solved]
To provide a method for producing a layered film structure wherein a smooth anodized film or chemical conversion film is formed on a surface of an alloy member without being affected by a precipitated phase contained in the alloy member, and a piston for an internal combustion engine.
[Solution]
The production method of the present invention includes the steps of: forming a pure metal layer on a surface of an alloy member; and conducting an anodizing treatment or a chemical conversion treatment on the pure metal layer to obtain a layered film structure having the alloy member and a film formed on the surface thereof. The piston for an internal combustion engine of the present invention has this layered film structure, wherein an interface between the alloy member and the film is linear at a cross section of the layered film structure or a precipitated phase is present in the interface and the interface is linear at the cross-section of the layered film structure except a portion where the precipitated phase is present.
EP21200000.4A 2020-10-02 2021-09-29 Method for producing layered film structure and piston for internal combustion engine Pending EP3978655A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020167803A JP2022059912A (en) 2020-10-02 2020-10-02 Method for manufacturing film laminate structure and piston for internal combustion engine

Publications (3)

Publication Number Publication Date
EP3978655A2 EP3978655A2 (en) 2022-04-06
EP3978655A3 true EP3978655A3 (en) 2022-05-25
EP3978655A8 EP3978655A8 (en) 2022-06-08

Family

ID=78302645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21200000.4A Pending EP3978655A3 (en) 2020-10-02 2021-09-29 Method for producing layered film structure and piston for internal combustion engine

Country Status (2)

Country Link
EP (1) EP3978655A3 (en)
JP (1) JP2022059912A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH576006A5 (en) * 1971-05-07 1976-05-31 Siemens Ag
JP2007231340A (en) * 2006-02-28 2007-09-13 Fujifilm Corp Method for producing nanostructure
JP2008081839A (en) * 2006-08-30 2008-04-10 Aisan Ind Co Ltd Member made of aluminum alloy, method for producing the same, and fuel pump with the member made of aluminum alloy
WO2015147164A1 (en) * 2014-03-27 2015-10-01 スズキ株式会社 Anodizing method, and structure of internal combustion engine
CN106435673A (en) * 2016-12-22 2017-02-22 日照金港活塞有限公司 Preparation technology of thermal insulation coating on internal combustion engine forging steel piston top

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4075918B2 (en) 2004-08-20 2008-04-16 スズキ株式会社 Anodized film and anodizing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH576006A5 (en) * 1971-05-07 1976-05-31 Siemens Ag
JP2007231340A (en) * 2006-02-28 2007-09-13 Fujifilm Corp Method for producing nanostructure
JP2008081839A (en) * 2006-08-30 2008-04-10 Aisan Ind Co Ltd Member made of aluminum alloy, method for producing the same, and fuel pump with the member made of aluminum alloy
WO2015147164A1 (en) * 2014-03-27 2015-10-01 スズキ株式会社 Anodizing method, and structure of internal combustion engine
CN106435673A (en) * 2016-12-22 2017-02-22 日照金港活塞有限公司 Preparation technology of thermal insulation coating on internal combustion engine forging steel piston top

Also Published As

Publication number Publication date
JP2022059912A (en) 2022-04-14
EP3978655A2 (en) 2022-04-06
EP3978655A8 (en) 2022-06-08

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