GB1477119A - Cooling of annealed material - Google Patents

Cooling of annealed material

Info

Publication number
GB1477119A
GB1477119A GB5240575A GB5240575A GB1477119A GB 1477119 A GB1477119 A GB 1477119A GB 5240575 A GB5240575 A GB 5240575A GB 5240575 A GB5240575 A GB 5240575A GB 1477119 A GB1477119 A GB 1477119A
Authority
GB
United Kingdom
Prior art keywords
gas
liquid
annealed material
dec
recycled
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
GB5240575A
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.)
Fried Krupp Huettenwerke AG
Original Assignee
Fried Krupp Huettenwerke 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
Priority claimed from DE19742461813 external-priority patent/DE2461813C3/en
Application filed by Fried Krupp Huettenwerke AG filed Critical Fried Krupp Huettenwerke AG
Publication of GB1477119A publication Critical patent/GB1477119A/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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous 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
    • C21D1/84—Controlled slow cooling
    • 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
    • C21D9/663—Bell-type furnaces

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 Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Details (AREA)

Abstract

1477119 Rapidly cooling annealed material FRIED KRUPP HUTTENWERKE AG 22 Dec 1975 [30 Dec 1974] 52405/75 Heading C7N Annealed material is allowed to cool to an intermediate temperature and is then cooled rapidly by introduction of a liquefied inert gas into the furnace. Preferably the intermediate temperature is one-third to one-fifth of the annealing temperature, measured in ‹C and the liquid is introduced as a whirling jet to directly contact the material; the liquid may be CO 2 , which is initially vented from the furnace until its purity reaches 99À7%, when it is recycled. In a particular embodiment liquid gas is supplied through line L, to a battery of furnaces O each of which is provided with a gas analyzer Q. When the initially impure gas has been vented valve P is closed, and pure gas recycled through heat exchanger H to gasometer G or recondensing unit V and liquid storage tank S.
GB5240575A 1974-12-30 1975-12-22 Cooling of annealed material Expired GB1477119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742461813 DE2461813C3 (en) 1974-12-30 Process for accelerated cooling of annealing material

Publications (1)

Publication Number Publication Date
GB1477119A true GB1477119A (en) 1977-06-22

Family

ID=5934744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5240575A Expired GB1477119A (en) 1974-12-30 1975-12-22 Cooling of annealed material

Country Status (8)

Country Link
AT (1) AT350096B (en)
BE (1) BE836677A (en)
ES (1) ES443808A1 (en)
FR (1) FR2296695A1 (en)
GB (1) GB1477119A (en)
IT (1) IT1051961B (en)
LU (1) LU74041A1 (en)
NL (1) NL7514387A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869046A1 (en) * 2004-04-19 2005-10-21 Francis Pelissier PROCESS FOR TEMPERING GAS

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615022C2 (en) * 1976-04-07 1978-03-02 Agefko Kohlensaeure-Industrie Gmbh, 4000 Duesseldorf Method of coating a surface by means of a jet of heated gas and molten material
FR2634866B1 (en) * 1988-07-26 1990-10-19 Thierry Dimier Traitements The METHOD AND DEVICE FOR RECOVERING A FLUID FOR REUSE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1314270A (en) * 1962-02-08 1963-01-04 Metallurg D Esperance Longdoz Process and installation for annealing thin sheets
JPS5117235B2 (en) * 1971-08-13 1976-06-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869046A1 (en) * 2004-04-19 2005-10-21 Francis Pelissier PROCESS FOR TEMPERING GAS

Also Published As

Publication number Publication date
FR2296695B1 (en) 1979-10-19
IT1051961B (en) 1981-05-20
DE2461813B2 (en) 1976-10-07
NL7514387A (en) 1976-07-02
BE836677A (en) 1976-04-16
ATA945775A (en) 1978-10-15
ES443808A1 (en) 1977-04-16
AT350096B (en) 1979-05-10
LU74041A1 (en) 1976-07-20
DE2461813A1 (en) 1976-07-01
FR2296695A1 (en) 1976-07-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee