DE3569751D1 - Process for surface-hardening by remelting cast iron cylinders - Google Patents

Process for surface-hardening by remelting cast iron cylinders

Info

Publication number
DE3569751D1
DE3569751D1 DE8585102673T DE3569751T DE3569751D1 DE 3569751 D1 DE3569751 D1 DE 3569751D1 DE 8585102673 T DE8585102673 T DE 8585102673T DE 3569751 T DE3569751 T DE 3569751T DE 3569751 D1 DE3569751 D1 DE 3569751D1
Authority
DE
Germany
Prior art keywords
hardening
cast iron
iron cylinders
remelting
remelting cast
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
Application number
DE8585102673T
Other languages
German (de)
Inventor
Klaus Dr Heck
Horst Dipl Ing Lindner
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Priority to DE8585102673T priority Critical patent/DE3569751D1/en
Application granted granted Critical
Publication of DE3569751D1 publication Critical patent/DE3569751D1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D5/00—Heat treatments of cast-iron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
DE8585102673T 1984-05-18 1985-03-08 Process for surface-hardening by remelting cast iron cylinders Expired DE3569751D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585102673T DE3569751D1 (en) 1984-05-18 1985-03-08 Process for surface-hardening by remelting cast iron cylinders

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3418555A DE3418555C1 (en) 1984-05-18 1984-05-18 Process for remelting the surface of cylinders made of carbon-containing cast iron
DE8585102673T DE3569751D1 (en) 1984-05-18 1985-03-08 Process for surface-hardening by remelting cast iron cylinders

Publications (1)

Publication Number Publication Date
DE3569751D1 true DE3569751D1 (en) 1989-06-01

Family

ID=6236254

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3418555A Expired DE3418555C1 (en) 1984-05-18 1984-05-18 Process for remelting the surface of cylinders made of carbon-containing cast iron
DE8585102673T Expired DE3569751D1 (en) 1984-05-18 1985-03-08 Process for surface-hardening by remelting cast iron cylinders

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3418555A Expired DE3418555C1 (en) 1984-05-18 1984-05-18 Process for remelting the surface of cylinders made of carbon-containing cast iron

Country Status (3)

Country Link
EP (1) EP0161408B1 (en)
JP (1) JPS60245725A (en)
DE (2) DE3418555C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510393C1 (en) * 1985-03-22 1986-04-03 Daimler-Benz Ag, 7000 Stuttgart Cylinder crankcase for an internal combustion engine
DE4124644A1 (en) * 1991-07-25 1993-01-28 Audi Ag Hardening internal surface of esp. cylinders - using structured rollers to heat surface by electro-resistance heating and movement of roller electrode over workpiece surface
DE4241527A1 (en) * 1992-12-10 1994-06-16 Opel Adam Ag Process for hardening and possibly smoothing machine components as well as machine components manufactured according to this process
ITRE20050025A1 (en) * 2005-03-10 2006-09-11 Ognibene Spa METHOD AND EQUIPMENT FOR THE HARDENING OF THE INTERNAL SURFACE OF HOLES, IN MECHANICAL PIECES OF CAST IRON WITH A FERRITIC MATRIX
DE102013219784A1 (en) * 2013-09-30 2015-04-02 Federal-Mogul Friedberg Gmbh Slip rings with leatherburitic structure on the surface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134662A1 (en) * 1971-07-12 1973-01-25 Teves Thompson Gmbh Strengthening metal parts - partic increasing the strength of valves in ic engines
DE2811400C3 (en) * 1978-03-16 1981-12-17 Aeg-Elotherm Gmbh, 5630 Remscheid Process for remelt hardening of workpieces
JPS57158319A (en) * 1981-03-24 1982-09-30 Toyota Motor Corp Partial surface hardening method using pulse tig welding machine

Also Published As

Publication number Publication date
EP0161408B1 (en) 1989-04-26
DE3418555C1 (en) 1985-07-25
EP0161408A3 (en) 1986-07-23
JPH0149773B2 (en) 1989-10-26
JPS60245725A (en) 1985-12-05
EP0161408A2 (en) 1985-11-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee