EP0057385A3 - Method for the direct electrical resistance heating of metal workpieces - Google Patents

Method for the direct electrical resistance heating of metal workpieces Download PDF

Info

Publication number
EP0057385A3
EP0057385A3 EP82100407A EP82100407A EP0057385A3 EP 0057385 A3 EP0057385 A3 EP 0057385A3 EP 82100407 A EP82100407 A EP 82100407A EP 82100407 A EP82100407 A EP 82100407A EP 0057385 A3 EP0057385 A3 EP 0057385A3
Authority
EP
European Patent Office
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.)
Granted
Application number
EP82100407A
Other languages
German (de)
Other versions
EP0057385A2 (en
EP0057385B1 (en
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.)
VEB DRAHT- und SEILWERK ROTHENBURG
Original Assignee
VEB DRAHT- und SEILWERK ROTHENBURG
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 VEB DRAHT- und SEILWERK ROTHENBURG filed Critical VEB DRAHT- und SEILWERK ROTHENBURG
Publication of EP0057385A2 publication Critical patent/EP0057385A2/en
Publication of EP0057385A3 publication Critical patent/EP0057385A3/en
Application granted granted Critical
Publication of EP0057385B1 publication Critical patent/EP0057385B1/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)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (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.
EP82100407A 1981-02-02 1982-01-21 Method for the direct electrical resistance heating of metal workpieces Expired EP0057385B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD227372 1981-02-02
DD81227372A DD160550A3 (en) 1981-02-02 1981-02-02 METHOD FOR THE DIRECT ELECTRICAL RESISTANCE SUPERVISION OF METALLIC WORKPIECES

Publications (3)

Publication Number Publication Date
EP0057385A2 EP0057385A2 (en) 1982-08-11
EP0057385A3 true EP0057385A3 (en) 1982-08-18
EP0057385B1 EP0057385B1 (en) 1986-08-27

Family

ID=5528914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100407A Expired EP0057385B1 (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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483374A1 (en) * 1964-12-18 1969-05-22 Delore Sa Geoffroy Process and device for the continuous soft annealing of metal wires
DE1583406A1 (en) * 1967-11-15 1970-08-13 Siemens Ag 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

Family Cites Families (1)

* 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483374A1 (en) * 1964-12-18 1969-05-22 Delore Sa Geoffroy Process and device for the continuous soft annealing of metal wires
DE1583406A1 (en) * 1967-11-15 1970-08-13 Siemens Ag 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
DE3272791D1 (en) 1986-10-02
EP0057385A2 (en) 1982-08-11
ATE21799T1 (en) 1986-09-15
EP0057385B1 (en) 1986-08-27
CS247109B1 (en) 1986-11-13
DD160550A3 (en) 1983-09-14
SU1446170A1 (en) 1988-12-23

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