JPS56133427A - Manufacture of hollow steel wire - Google Patents

Manufacture of hollow steel wire

Info

Publication number
JPS56133427A
JPS56133427A JP3659080A JP3659080A JPS56133427A JP S56133427 A JPS56133427 A JP S56133427A JP 3659080 A JP3659080 A JP 3659080A JP 3659080 A JP3659080 A JP 3659080A JP S56133427 A JPS56133427 A JP S56133427A
Authority
JP
Japan
Prior art keywords
pipe
continuously
tape
steel wire
drawn
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.)
Pending
Application number
JP3659080A
Other languages
Japanese (ja)
Inventor
Hideo Kokita
Shuichi Nakada
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric 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 Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP3659080A priority Critical patent/JPS56133427A/en
Publication of JPS56133427A publication Critical patent/JPS56133427A/en
Pending 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
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods

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)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To continuously manufacture a long-sized hollow steel wire for a twisted spring at a low cost by continuously forming a tape of carbon steel or alloy steel followed by drawing and proper heat treatments. CONSTITUTION:Tape 1 made of carbon steel or alloy steel is continuously fed to forming roll 3 from reel 12, formed into pipe shape, and joined by seam welding the butted faces with welding machine 4. The resulting pipe 2 is annealed by heating at 400-700 deg.C for a short time in heating furnace 5. By this annealing the sstructure of the weld zone is converted into a tempered structure with high workability. Pipe 2 is then air cooled and continuously drawn to a prescribed diameter with drawing unit 7 at ordinary or elevated temp. by passing through dies 6 once-several times. Drawn pipe 2 is heated to 800-1,000 deg.C with heater 8 to austenitize the material, and immediately it is passed through vessel 9 filled with a cooling medium such as water or oil to convert the austenite into martensite. It is successively tempered at 200-450 deg.C with tempering unit 10 and coiled with coiler 10.
JP3659080A 1980-03-21 1980-03-21 Manufacture of hollow steel wire Pending JPS56133427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3659080A JPS56133427A (en) 1980-03-21 1980-03-21 Manufacture of hollow steel wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3659080A JPS56133427A (en) 1980-03-21 1980-03-21 Manufacture of hollow steel wire

Publications (1)

Publication Number Publication Date
JPS56133427A true JPS56133427A (en) 1981-10-19

Family

ID=12473985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3659080A Pending JPS56133427A (en) 1980-03-21 1980-03-21 Manufacture of hollow steel wire

Country Status (1)

Country Link
JP (1) JPS56133427A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008238246A (en) * 2007-03-28 2008-10-09 Nippon Kinzoku Co Ltd Method of manufacturing pure nickel pipe and pure nickel pipe
CN113843301A (en) * 2017-01-17 2021-12-28 美国法朗姆能源公司 Method of manufacturing coiled tubing string

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008238246A (en) * 2007-03-28 2008-10-09 Nippon Kinzoku Co Ltd Method of manufacturing pure nickel pipe and pure nickel pipe
CN113843301A (en) * 2017-01-17 2021-12-28 美国法朗姆能源公司 Method of manufacturing coiled tubing string
US11833561B2 (en) 2017-01-17 2023-12-05 Forum Us, Inc. Method of manufacturing a coiled tubing string

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