GB1045692A - Heat treatment method - Google Patents

Heat treatment method

Info

Publication number
GB1045692A
GB1045692A GB73564A GB73564A GB1045692A GB 1045692 A GB1045692 A GB 1045692A GB 73564 A GB73564 A GB 73564A GB 73564 A GB73564 A GB 73564A GB 1045692 A GB1045692 A GB 1045692A
Authority
GB
United Kingdom
Prior art keywords
interrupted
heat treatment
cooling
treatment method
rod
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
GB73564A
Inventor
Robert Frederic Jenkin Morgan
Jack Smith
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.)
Davy Loewy Ltd
Original Assignee
Davy Loewy Ltd
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 Davy Loewy Ltd filed Critical Davy Loewy Ltd
Priority to GB73564A priority Critical patent/GB1045692A/en
Publication of GB1045692A publication Critical patent/GB1045692A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/53—Heating in fluidised beds
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/567—Continuous furnaces for strip or wire with heating in fluidised beds

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)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

A solid body such as a coil of rod is heat treated by immersion in a fluidized bed, the flow of fluidizing gas being interrupted to reduce the heat transfer rate to or from the body, and restarted before removing the body from the bed. As exemplified the process is applied to the cooling of carbon steel rod, cooling being interrupted at such a temperature that a fine pearlite structure is formed. The apparatus of Specification 1, 040, 760 modified to permit rapid variation of the gas supply, may be used.
GB73564A 1964-01-07 1964-01-07 Heat treatment method Expired GB1045692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB73564A GB1045692A (en) 1964-01-07 1964-01-07 Heat treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB73564A GB1045692A (en) 1964-01-07 1964-01-07 Heat treatment method

Publications (1)

Publication Number Publication Date
GB1045692A true GB1045692A (en) 1966-10-19

Family

ID=9709613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB73564A Expired GB1045692A (en) 1964-01-07 1964-01-07 Heat treatment method

Country Status (1)

Country Link
GB (1) GB1045692A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1543908A2 (en) * 2003-12-17 2005-06-22 ROLLS-ROYCE plc Method for heat-treating a packed article encased in a granular material and a fixture for holding a substrate onto which the article is packed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1543908A2 (en) * 2003-12-17 2005-06-22 ROLLS-ROYCE plc Method for heat-treating a packed article encased in a granular material and a fixture for holding a substrate onto which the article is packed
EP1543908A3 (en) * 2003-12-17 2005-10-12 ROLLS-ROYCE plc Method for heat-treating a packed article encased in a granular material and a fixture for holding a substrate onto which the article is packed

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