JPS565931A - Annealing method for steel wire rod by direct application of electric current - Google Patents

Annealing method for steel wire rod by direct application of electric current

Info

Publication number
JPS565931A
JPS565931A JP8088479A JP8088479A JPS565931A JP S565931 A JPS565931 A JP S565931A JP 8088479 A JP8088479 A JP 8088479A JP 8088479 A JP8088479 A JP 8088479A JP S565931 A JPS565931 A JP S565931A
Authority
JP
Japan
Prior art keywords
wire rod
rollers
steel wire
wound
annealing
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
JP8088479A
Other languages
Japanese (ja)
Other versions
JPS5846534B2 (en
Inventor
Chuzo Sudo
Masaru Takatani
Kenji Aihara
Toyohiko Okamoto
Hiroari Morito
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP8088479A priority Critical patent/JPS5846534B2/en
Publication of JPS565931A publication Critical patent/JPS565931A/en
Publication of JPS5846534B2 publication Critical patent/JPS5846534B2/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
    • 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
    • C21D9/62—Continuous furnaces for strip or wire with direct resistance heating

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

PURPOSE:To improve annealing capacity at excellent heat efficiency, by applying electric current with electrode rollers to steel wire rod while it is delivered thereby heating the wire rod by Joule heat, and after being wound by annealing the wire rod while it is kept hot by its potential heat and is cooled slowly. CONSTITUTION:Steel wire rod 2 contg. <0.55% C is passed a guide roller 3, reforming rollers train 4, where its bend is corrected, then it is passed the inlet side guide roller 5 of a delivering roller 6 and is wound two or three turns by the delivering roller 6. The wire rod 2 is delivered through an outlet side guide roller 7 of the delivering roller 6, inlet side rollers 8 of electrode rollers 9 to the electrode rollers 9, there it is energized by the electrode rollers 9 and is heated to a temp. 700- 800 deg.C by the Joule heat due to the electric resistance of the wire rod 2. The wire rod passes through guide rollers 10, 12, 13 and is wound by a spool 15 at a >=350 deg.C temp. The wire rod is allowed to cool slowly while it is kept hot by its potential heat so as to be annealed, thereby annealing steel wire rod excellent in mechanical properties at excellent thermal efficiency and with a large treating capacity.
JP8088479A 1979-06-26 1979-06-26 Direct current annealing method for steel wire Expired JPS5846534B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8088479A JPS5846534B2 (en) 1979-06-26 1979-06-26 Direct current annealing method for steel wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8088479A JPS5846534B2 (en) 1979-06-26 1979-06-26 Direct current annealing method for steel wire

Publications (2)

Publication Number Publication Date
JPS565931A true JPS565931A (en) 1981-01-22
JPS5846534B2 JPS5846534B2 (en) 1983-10-17

Family

ID=13730762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8088479A Expired JPS5846534B2 (en) 1979-06-26 1979-06-26 Direct current annealing method for steel wire

Country Status (1)

Country Link
JP (1) JPS5846534B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607519A1 (en) * 1986-11-27 1988-06-03 Michelin & Cie METHOD AND DEVICE FOR THERMALLY PROCESSING STEEL WIRE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607519A1 (en) * 1986-11-27 1988-06-03 Michelin & Cie METHOD AND DEVICE FOR THERMALLY PROCESSING STEEL WIRE

Also Published As

Publication number Publication date
JPS5846534B2 (en) 1983-10-17

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