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DE59808370D1 - Process for hardening piston crowns and piston crowns - Google Patents

Process for hardening piston crowns and piston crowns

Info

Publication number
DE59808370D1
DE59808370D1 DE59808370T DE59808370T DE59808370D1 DE 59808370 D1 DE59808370 D1 DE 59808370D1 DE 59808370 T DE59808370 T DE 59808370T DE 59808370 T DE59808370 T DE 59808370T DE 59808370 D1 DE59808370 D1 DE 59808370D1
Authority
DE
Germany
Prior art keywords
piston crowns
hardening
crowns
piston
hardening piston
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.)
Expired - Lifetime
Application number
DE59808370T
Other languages
German (de)
Inventor
Reinke Horst
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.)
MMS MARINE MOTOR SERVICE
Original Assignee
MMS MARINE MOTOR SERVICE
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 MMS MARINE MOTOR SERVICE filed Critical MMS MARINE MOTOR SERVICE
Application granted granted Critical
Publication of DE59808370D1 publication Critical patent/DE59808370D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • C23C8/26—Nitriding of ferrous surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
DE59808370T 1998-09-10 1998-09-10 Process for hardening piston crowns and piston crowns Expired - Lifetime DE59808370D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980117125 EP0985739B1 (en) 1998-09-10 1998-09-10 Method of hardening piston crowns and piston crown

Publications (1)

Publication Number Publication Date
DE59808370D1 true DE59808370D1 (en) 2003-06-18

Family

ID=8232606

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59808370T Expired - Lifetime DE59808370D1 (en) 1998-09-10 1998-09-10 Process for hardening piston crowns and piston crowns

Country Status (2)

Country Link
EP (1) EP0985739B1 (en)
DE (1) DE59808370D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214623A1 (en) * 2002-04-02 2003-11-13 Winergy Ag Process for the treatment of gears
DE102010033881A1 (en) 2010-08-10 2012-02-16 Mahle International Gmbh Piston for an internal combustion engine and method for its production

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH545859A (en) * 1970-09-08 1974-02-15
DE2832970A1 (en) * 1978-07-27 1980-02-07 Schmidt Gmbh Karl BUILT LIQUID-COOLED PISTON FOR INTERNAL COMBUSTION ENGINES
JPS5528379A (en) * 1978-08-23 1980-02-28 Nippon Piston Ring Co Ltd Wear resistant sliding material for internal combustion engine
DE3212338C2 (en) * 1981-04-03 1983-02-24 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Process for the production of heavy-duty machine parts, in particular internal combustion engine parts
US4643079A (en) * 1985-03-28 1987-02-17 General Motors Corporation Iron piston having selectively hardened ring groove
JP2786873B2 (en) * 1988-02-18 1998-08-13 三洋電機株式会社 Manufacturing method of piston
JPH05148612A (en) * 1991-11-25 1993-06-15 Nippon Piston Ring Co Ltd Manufacture of piston ring
JP3846811B2 (en) * 1995-12-19 2006-11-15 株式会社小松製作所 Piston for internal combustion engine

Also Published As

Publication number Publication date
EP0985739B1 (en) 2003-05-14
EP0985739A1 (en) 2000-03-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition