FR2174657A1 - Chlutchplate heat treatment - accelerated by heating to alpha iron to austenite change point - Google Patents

Chlutchplate heat treatment - accelerated by heating to alpha iron to austenite change point

Info

Publication number
FR2174657A1
FR2174657A1 FR7207659A FR7207659A FR2174657A1 FR 2174657 A1 FR2174657 A1 FR 2174657A1 FR 7207659 A FR7207659 A FR 7207659A FR 7207659 A FR7207659 A FR 7207659A FR 2174657 A1 FR2174657 A1 FR 2174657A1
Authority
FR
France
Prior art keywords
heating
chlutchplate
accelerated
heat treatment
change point
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.)
Granted
Application number
FR7207659A
Other languages
French (fr)
Other versions
FR2174657B1 (en
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.)
Valeo SE
Original Assignee
Francaise du Ferodo SA
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 Francaise du Ferodo SA filed Critical Francaise du Ferodo SA
Priority to FR7207659A priority Critical patent/FR2174657A1/en
Priority to IT1248373A priority patent/IT983347B/en
Priority to DE19732310541 priority patent/DE2310541A1/en
Priority to ES412336A priority patent/ES412336A1/en
Publication of FR2174657A1 publication Critical patent/FR2174657A1/en
Application granted granted Critical
Publication of FR2174657B1 publication Critical patent/FR2174657B1/fr
Granted 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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
    • C21D1/34—Methods of heating
    • C21D1/52—Methods of heating with flames

Abstract

Workpieces in which the alpha-iron has to be transformed into austenite prior to hardening are heated to a temp. corresp. to the alpha-phase, transferred into a chamber heated by radiant burners to a higher temp. than the austenite phase, and when the temp. rise graph of the workpiece exhibits a kink, it is withdrawn and transferred to a homogenizing chamber for heating to the final temp.
FR7207659A 1972-03-06 1972-03-06 Chlutchplate heat treatment - accelerated by heating to alpha iron to austenite change point Granted FR2174657A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7207659A FR2174657A1 (en) 1972-03-06 1972-03-06 Chlutchplate heat treatment - accelerated by heating to alpha iron to austenite change point
IT1248373A IT983347B (en) 1972-03-06 1973-02-27 PROCEDURE AND PLANT FOR HEATING ANY PIECE SUBJECT TO A CHANGE OF ENDOTHERMAL STATE IN THE SOLID PHASE
DE19732310541 DE2310541A1 (en) 1972-03-06 1973-03-02 PROCESS AND DEVICE FOR HEATING A WORKPIECE UNDERSTANDING AN ENDOTHERMAL CHANGE IN STATE IN THE SOLID PHASE
ES412336A ES412336A1 (en) 1972-03-06 1973-03-05 Procedure and installation for the heating of an any part susceptible of being objected by warming of a change of endothermal state in solid phase. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7207659A FR2174657A1 (en) 1972-03-06 1972-03-06 Chlutchplate heat treatment - accelerated by heating to alpha iron to austenite change point

Publications (2)

Publication Number Publication Date
FR2174657A1 true FR2174657A1 (en) 1973-10-19
FR2174657B1 FR2174657B1 (en) 1974-08-02

Family

ID=9094664

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7207659A Granted FR2174657A1 (en) 1972-03-06 1972-03-06 Chlutchplate heat treatment - accelerated by heating to alpha iron to austenite change point

Country Status (4)

Country Link
DE (1) DE2310541A1 (en)
ES (1) ES412336A1 (en)
FR (1) FR2174657A1 (en)
IT (1) IT983347B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824077A1 (en) * 2001-04-26 2002-10-31 Air Liquide Reducing heat losses during the treatment of a metallurgical product in a furnace by controlling the thermal profile during treatment
WO2002088402A1 (en) * 2001-04-26 2002-11-07 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for enhancing the metallurgical quality of products treated in a furnace

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6336809B1 (en) 1998-12-15 2002-01-08 Consolidated Engineering Company, Inc. Combination conduction/convection furnace
US20060103059A1 (en) 2004-10-29 2006-05-18 Crafton Scott P High pressure heat treatment system
CN107532268B (en) 2015-04-28 2019-12-03 联合工程公司 System and method for being heat-treated to aluminium alloy castings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824077A1 (en) * 2001-04-26 2002-10-31 Air Liquide Reducing heat losses during the treatment of a metallurgical product in a furnace by controlling the thermal profile during treatment
WO2002088402A1 (en) * 2001-04-26 2002-11-07 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for enhancing the metallurgical quality of products treated in a furnace
US6955730B2 (en) 2001-04-26 2005-10-18 L'Air Liquide, Société Anonyme á Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Method for enhancing the metallurigcal quality of products treated in a furnace

Also Published As

Publication number Publication date
DE2310541A1 (en) 1973-09-13
IT983347B (en) 1974-10-31
FR2174657B1 (en) 1974-08-02
ES412336A1 (en) 1976-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse