DE3272791D1 - Method for the direct electrical resistance heating of metal workpieces - Google Patents

Method for the direct electrical resistance heating of metal workpieces

Info

Publication number
DE3272791D1
DE3272791D1 DE8282100407T DE3272791T DE3272791D1 DE 3272791 D1 DE3272791 D1 DE 3272791D1 DE 8282100407 T DE8282100407 T DE 8282100407T DE 3272791 T DE3272791 T DE 3272791T DE 3272791 D1 DE3272791 D1 DE 3272791D1
Authority
DE
Germany
Prior art keywords
resistance heating
electrical resistance
direct electrical
metal workpieces
current flow
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
DE8282100407T
Other languages
German (de)
Inventor
Klaus-Michael Dr Ing Petzold
Gerald Dipl Ing Werthmann
Herbert Dr Muhe
Gregor Dipl Phys Muller
Werner Prof Dr Ing Schirmer
Roland Dipl Ing Lippmann
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.)
ROTHENBURG DRAHT SEILWERK
Original Assignee
ROTHENBURG DRAHT SEILWERK
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 ROTHENBURG DRAHT SEILWERK filed Critical ROTHENBURG DRAHT SEILWERK
Application granted granted Critical
Publication of DE3272791D1 publication Critical patent/DE3272791D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0004—Devices wherein the heating current flows through the material to be heated
    • H05B3/0009—Devices wherein the heating current flows through the material to be heated the material to be heated being in motion
    • 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
    • C21D1/40—Direct resistance heating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Control Of Resistance Heating (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Resistance Heating (AREA)
  • Furnace Details (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Abstract

1. A method for direct electric resistance heating of metallic workpieces where, in addition to this, a temperature influence perpendicularly to the direction of current flow is effected by energy offers from outside within specific periods, characterized in that defined energy offers act for such a short time that no temperature compensation takes place across the section of the workpiece within these periods and, consequently, the temperature distribution perpendicularly to the direction of current flow is non-uniform.
DE8282100407T 1981-02-02 1982-01-21 Method for the direct electrical resistance heating of metal workpieces Expired DE3272791D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD81227372A DD160550A3 (en) 1981-02-02 1981-02-02 METHOD FOR THE DIRECT ELECTRICAL RESISTANCE SUPERVISION OF METALLIC WORKPIECES

Publications (1)

Publication Number Publication Date
DE3272791D1 true DE3272791D1 (en) 1986-10-02

Family

ID=5528914

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282100407T Expired DE3272791D1 (en) 1981-02-02 1982-01-21 Method for the direct electrical resistance heating of metal workpieces

Country Status (6)

Country Link
EP (1) EP0057385B1 (en)
AT (1) ATE21799T1 (en)
CS (1) CS247109B1 (en)
DD (1) DD160550A3 (en)
DE (1) DE3272791D1 (en)
SU (1) SU1446170A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340747A3 (en) * 1988-05-04 1990-06-06 VEB Draht- und Seilwerk Rothenburg Method of and device for improving the coating quality of bar-shaped metallic products
AU3854400A (en) * 1999-06-01 2000-12-18 Mehmet Terziakin Instant heating process with electric current application to the workpiece for high strength metal forming

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704036A (en) * 1924-11-20 1929-03-05 Electric Furnace Co Annealing furnace
FR1448787A (en) * 1964-12-18 1966-03-18 Geoffroy Delore Method and device for continuous annealing of metal wires
DE1583406C3 (en) * 1967-11-15 1974-07-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen Arrangement for the heat treatment of strand material by means of electrical resistance heating
DE2538045A1 (en) * 1975-08-27 1977-03-10 Henrich Kg Multistrand resistance heating plant - for simultaneous annealing of several drawn wires with individual temp. control

Also Published As

Publication number Publication date
DD160550A3 (en) 1983-09-14
ATE21799T1 (en) 1986-09-15
EP0057385B1 (en) 1986-08-27
SU1446170A1 (en) 1988-12-23
CS247109B1 (en) 1986-11-13
EP0057385A2 (en) 1982-08-11
EP0057385A3 (en) 1982-08-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee