FR2687169B1 - METHOD OF HEAT TREATMENT BY SIMULTANEOUS BI-FREQUENCY INDUCTION. - Google Patents

METHOD OF HEAT TREATMENT BY SIMULTANEOUS BI-FREQUENCY INDUCTION.

Info

Publication number
FR2687169B1
FR2687169B1 FR929201493A FR9201493A FR2687169B1 FR 2687169 B1 FR2687169 B1 FR 2687169B1 FR 929201493 A FR929201493 A FR 929201493A FR 9201493 A FR9201493 A FR 9201493A FR 2687169 B1 FR2687169 B1 FR 2687169B1
Authority
FR
France
Prior art keywords
simultaneous
heat treatment
frequency induction
induction
frequency
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 - Fee Related
Application number
FR929201493A
Other languages
French (fr)
Other versions
FR2687169A1 (en
Inventor
Bernard Criqui
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR929201493A priority Critical patent/FR2687169B1/en
Publication of FR2687169A1 publication Critical patent/FR2687169A1/en
Application granted granted Critical
Publication of FR2687169B1 publication Critical patent/FR2687169B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
    • 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
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
FR929201493A 1992-02-11 1992-02-11 METHOD OF HEAT TREATMENT BY SIMULTANEOUS BI-FREQUENCY INDUCTION. Expired - Fee Related FR2687169B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR929201493A FR2687169B1 (en) 1992-02-11 1992-02-11 METHOD OF HEAT TREATMENT BY SIMULTANEOUS BI-FREQUENCY INDUCTION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR929201493A FR2687169B1 (en) 1992-02-11 1992-02-11 METHOD OF HEAT TREATMENT BY SIMULTANEOUS BI-FREQUENCY INDUCTION.

Publications (2)

Publication Number Publication Date
FR2687169A1 FR2687169A1 (en) 1993-08-13
FR2687169B1 true FR2687169B1 (en) 1994-09-02

Family

ID=9426508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929201493A Expired - Fee Related FR2687169B1 (en) 1992-02-11 1992-02-11 METHOD OF HEAT TREATMENT BY SIMULTANEOUS BI-FREQUENCY INDUCTION.

Country Status (1)

Country Link
FR (1) FR2687169B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763267B1 (en) * 1997-05-13 1999-07-16 Renault PROCESS FOR THE MANUFACTURE OF GEARS ON A HOLLOW SHAFT OF GEARBOX
FR2790007B1 (en) * 1999-02-19 2001-04-20 Renault METHOD OF HEAT TREATING A STEEL TOOTHED WHEEL
FR2868975B1 (en) * 2004-04-19 2007-06-08 Peugeot Citroen Automobiles Sa METHOD FOR INDUCTION THERMAL TREATMENT FOR A REVOLUTION MECHANICAL PART AND DEVICE FOR IMPLEMENTING SAID METHOD
DE102008041952B4 (en) * 2008-09-10 2016-10-20 Robert Bosch Automotive Steering Gmbh rack
FR2945546B1 (en) * 2009-05-15 2014-06-13 Peugeot Citroen Automobiles Sa PROCESS FOR REINFORCING A MECHANICAL PIECE OF FERROUS ALLOY.
CN107586938B (en) * 2017-09-08 2018-10-23 马钢(集团)控股有限公司 A kind of heat treatment method of medium carbon low alloy steel railway wheel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR938868A (en) * 1944-09-21 1948-10-27 Thomson Houston Comp Francaise Improvements to heating equipment using high frequency currents
FR942688A (en) * 1947-03-05 1949-02-15 Renault Improvements in surface heat treatments by electromagnetic induction
FR1069222A (en) * 1952-12-27 1954-07-06 Renault Process for treating steel parts by electromagnetic induction
FR1264671A (en) * 1960-05-14 1961-06-23 Renault Method and apparatus for surface treatment of gables
DE2455285B2 (en) * 1974-11-22 1977-12-15 Mtu Friedrichshafen Gmbh HARDENING PROCESS FOR CRANKSHAFT
US4885831A (en) * 1988-09-26 1989-12-12 Dana Corporation Method for forming a contour hardened gear

Also Published As

Publication number Publication date
FR2687169A1 (en) 1993-08-13

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse

Effective date: 20081031