GB1011562A - Treating sheet metal in open coil bobbins - Google Patents

Treating sheet metal in open coil bobbins

Info

Publication number
GB1011562A
GB1011562A GB7463/62A GB746362A GB1011562A GB 1011562 A GB1011562 A GB 1011562A GB 7463/62 A GB7463/62 A GB 7463/62A GB 746362 A GB746362 A GB 746362A GB 1011562 A GB1011562 A GB 1011562A
Authority
GB
United Kingdom
Prior art keywords
furnace
gas
during
sheet metal
impeller
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
GB7463/62A
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.)
METALLURG D ESPERANCE LONGDOZ
Original Assignee
METALLURG D ESPERANCE LONGDOZ
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 METALLURG D ESPERANCE LONGDOZ filed Critical METALLURG D ESPERANCE LONGDOZ
Publication of GB1011562A publication Critical patent/GB1011562A/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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • 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
    • C21D9/60—Continuous furnaces for strip or wire with induction heating
    • 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

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)

Abstract

An open coil bobbin 5 of sheet metal, e.g. steel is treated in a furnace 1, particularly to decarburize and denitride it so as to render it non-ageing, in which an internal rotary impeller 7 is used to blow gas, such as HNX gas supplied from gasometer 19, between the coils of the bobbin during heating up, by blocking the impeller inlet or outlet, e.g. with baffle 12 using weights and pulleys, and blowing wet hydrogen between the coils by means placed outside the furnace, such as reservoir 18, during soaking, e.g. at 700 DEG C. The inlet or outlet of the impeller may also be blocked during all or part of the heating up and cooling, during <PICT:1011562/C6-C7/1> which HNX gas is circulated through the furnace via a refrigerator. A heat exchanger 14 may be used to transfer heat from gas leaving the furnace via duct 11 to gas entering via duct 9.
GB7463/62A 1961-02-24 1962-02-26 Treating sheet metal in open coil bobbins Expired GB1011562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE600643A BE600643A (en) 1961-02-24 1961-02-24 Method and device for annealing thin sheets.

Publications (1)

Publication Number Publication Date
GB1011562A true GB1011562A (en) 1965-12-01

Family

ID=3845223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7463/62A Expired GB1011562A (en) 1961-02-24 1962-02-26 Treating sheet metal in open coil bobbins

Country Status (5)

Country Link
US (1) US3294596A (en)
AT (1) AT242727B (en)
BE (1) BE600643A (en)
GB (1) GB1011562A (en)
LU (1) LU41089A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE679856A (en) * 1965-05-06 1966-10-03
US4210469A (en) * 1974-07-11 1980-07-01 Nippon Steel Corp. Process of annealing for preventing temper colors on a steel sheet

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127289A (en) * 1964-03-31 hoursx
US2360868A (en) * 1943-01-02 1944-10-24 Carnegie Illinois Steel Corp Manufacture of nonaging steel
GB585921A (en) * 1943-11-22 1947-02-28 Birmingham Electr Furnaces Ltd Improvements in, or relating to, the decarburisation of iron or iron alloy castings
US2752148A (en) * 1948-09-08 1956-06-26 Westinghouse Electric Corp Electronic heat treating device
US2746742A (en) * 1949-03-24 1956-05-22 Int Nickel Co Apparatus for producing porous metal plates
US2998303A (en) * 1958-08-26 1961-08-29 Midland Ross Corp Method for purifying hydrogen contaminated with methane
US3109877A (en) * 1960-07-01 1963-11-05 Wilson Lee Apparatus for modifying the composition of strip metal
US3105780A (en) * 1960-09-19 1963-10-01 Gen Electric Method of decarburizing ferrous materials

Also Published As

Publication number Publication date
US3294596A (en) 1966-12-27
AT242727B (en) 1965-10-11
LU41089A1 (en) 1962-03-12
BE600643A (en) 1961-08-24

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