EP0090682A3 - Heat treating method and apparatus for making rods of alloy steel ready for use - Google Patents

Heat treating method and apparatus for making rods of alloy steel ready for use Download PDF

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Publication number
EP0090682A3
EP0090682A3 EP83400378A EP83400378A EP0090682A3 EP 0090682 A3 EP0090682 A3 EP 0090682A3 EP 83400378 A EP83400378 A EP 83400378A EP 83400378 A EP83400378 A EP 83400378A EP 0090682 A3 EP0090682 A3 EP 0090682A3
Authority
EP
European Patent Office
Prior art keywords
cooling
alloy steel
heat treating
treating method
approximately
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
EP83400378A
Other languages
French (fr)
Other versions
EP0090682A2 (en
EP0090682B1 (en
Inventor
Yves Desalos
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to AT83400378T priority Critical patent/ATE62278T1/en
Publication of EP0090682A2 publication Critical patent/EP0090682A2/en
Publication of EP0090682A3 publication Critical patent/EP0090682A3/en
Application granted granted Critical
Publication of EP0090682B1 publication Critical patent/EP0090682B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C21D1/62—Quenching devices
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The rods, up to approximately 150 mm in diameter, are used especially for mechanical construction; this treatment, which is carried out at rolling heat, comprises the following three successive stages: a) a severe forced cooling on the run by a sheet of water 2, to lower the average temperature of the section to approximately 600-550 DEG C over a minimum length, for example less than 30 m, b) natural air cooling on a cooling bed 29 for a certain thermal homogenisation of the section and autotempering of the surface martensite, c) a second forced cooling on the cooling bed either by spraying water at 28a or by immersion, at least to an average temperature of the order of 300 DEG C, it being possible for the final cooling to take place in air at 27. This treatment may be supplemented by conventional tempering. <IMAGE>
EP83400378A 1982-03-03 1983-02-24 Heat treating method and apparatus for making rods of alloy steel ready for use Expired - Lifetime EP0090682B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83400378T ATE62278T1 (en) 1982-03-03 1983-02-24 HEAT TREATMENT PROCESS AND APPARATUS FOR PRODUCTION OF READY-TO-USE ALLOY STEEL BARS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8203659 1982-03-03
FR8203659A FR2522688B1 (en) 1982-03-03 1982-03-03 PROCESS AND INSTALLATION FOR HEAT TREATMENT OF ALLOYED STEEL BARS READY FOR USE, PARTICULARLY FOR MECHANICAL CONSTRUCTION

Publications (3)

Publication Number Publication Date
EP0090682A2 EP0090682A2 (en) 1983-10-05
EP0090682A3 true EP0090682A3 (en) 1987-09-02
EP0090682B1 EP0090682B1 (en) 1991-04-03

Family

ID=9271614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400378A Expired - Lifetime EP0090682B1 (en) 1982-03-03 1983-02-24 Heat treating method and apparatus for making rods of alloy steel ready for use

Country Status (7)

Country Link
EP (1) EP0090682B1 (en)
JP (1) JPS58189328A (en)
AT (1) ATE62278T1 (en)
BE (1) BE896021A (en)
DE (1) DE3382237D1 (en)
FR (1) FR2522688B1 (en)
LU (1) LU84666A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927276A1 (en) * 1989-08-18 1991-02-21 Schloemann Siemag Ag METHOD FOR HARDENING STEEL WITH THE AID OF LIQUID COOLING MEDIA
CN105385831B (en) * 2015-12-17 2018-02-16 北京科技大学 A kind of oblique milling ball milling steel ball UTILIZATION OF VESIDUAL HEAT IN annealing device
CN105400945B (en) * 2015-12-17 2018-02-16 北京科技大学 A kind of major diameter oblique milling ball milling steel ball heat treatment system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD84615A (en) *
DE925527C (en) * 1941-07-30 1955-03-24 Oberhuetten Vereinigte Obersch Method and device for hardening and tempering rolled objects
DD112144A1 (en) * 1974-06-12 1975-03-20
DD119270A1 (en) * 1975-04-02 1976-04-12
EP0020246A1 (en) * 1979-06-01 1980-12-10 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Cooling device for hot rolled elongate laminated products
FR2488279A1 (en) * 1980-08-08 1982-02-12 Siderurgie Fse Inst Rech Controlled quenching of hot rolled steel rods - to give fine pearlitic-ferritic, lower bainitic or martensitic structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD84615A (en) *
DE925527C (en) * 1941-07-30 1955-03-24 Oberhuetten Vereinigte Obersch Method and device for hardening and tempering rolled objects
DD112144A1 (en) * 1974-06-12 1975-03-20
DD119270A1 (en) * 1975-04-02 1976-04-12
EP0020246A1 (en) * 1979-06-01 1980-12-10 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Cooling device for hot rolled elongate laminated products
FR2488279A1 (en) * 1980-08-08 1982-02-12 Siderurgie Fse Inst Rech Controlled quenching of hot rolled steel rods - to give fine pearlitic-ferritic, lower bainitic or martensitic structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DRAHT-FACHZEITSCHRIFT, no. 6, 1977, pages 247-254, Coburg; M. ALBEDYHL et al.: "K}hlung von Walzgut in Profilstahlstrassen" *

Also Published As

Publication number Publication date
EP0090682A2 (en) 1983-10-05
BE896021A (en) 1983-06-16
ATE62278T1 (en) 1991-04-15
JPH0335363B2 (en) 1991-05-28
EP0090682B1 (en) 1991-04-03
FR2522688B1 (en) 1990-09-14
LU84666A1 (en) 1983-09-08
JPS58189328A (en) 1983-11-05
FR2522688A1 (en) 1983-09-09
DE3382237D1 (en) 1991-05-08

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