JPS5782431A - Production of high tension wire rod - Google Patents

Production of high tension wire rod

Info

Publication number
JPS5782431A
JPS5782431A JP15727580A JP15727580A JPS5782431A JP S5782431 A JPS5782431 A JP S5782431A JP 15727580 A JP15727580 A JP 15727580A JP 15727580 A JP15727580 A JP 15727580A JP S5782431 A JPS5782431 A JP S5782431A
Authority
JP
Japan
Prior art keywords
finish rolling
wire rod
high tension
tension wire
rolled
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
JP15727580A
Other languages
Japanese (ja)
Other versions
JPH0146566B2 (en
Inventor
Katsuyoshi Kajiyama
Takashi Fukuda
Kenji Aihara
Takuo Mizoguchi
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 JP15727580A priority Critical patent/JPS5782431A/en
Publication of JPS5782431A publication Critical patent/JPS5782431A/en
Publication of JPH0146566B2 publication Critical patent/JPH0146566B2/ja
Granted 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)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To produce a high tension wire rod of superior relaxation characteristics with good efficiency at a low cost by subjecting a material to be rolled to precision finish rolling with finish rolling mill groups then to cooling at rates above the critical cooling rate to have martensite structure followed by tempering and warm working. CONSTITUTION:A material to be rolled is subjected to precision rolling with at least finish rolling mill groups within the range of <=0.1mm. diametral tolerance and <=+ or -0.1mm. dimensional accuracy. After the precision finish rolling, it is cooled at the rates above the critical cooling rate for the material to be rolled to turn the structure to martensite. Thence, it is subjected to tempering and warm working processes continuously. In this way, the high tension wire rod of high relaxation characteristics contg. <=0.4 carbon is produced.
JP15727580A 1980-11-08 1980-11-08 Production of high tension wire rod Granted JPS5782431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15727580A JPS5782431A (en) 1980-11-08 1980-11-08 Production of high tension wire rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15727580A JPS5782431A (en) 1980-11-08 1980-11-08 Production of high tension wire rod

Publications (2)

Publication Number Publication Date
JPS5782431A true JPS5782431A (en) 1982-05-22
JPH0146566B2 JPH0146566B2 (en) 1989-10-09

Family

ID=15646086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15727580A Granted JPS5782431A (en) 1980-11-08 1980-11-08 Production of high tension wire rod

Country Status (1)

Country Link
JP (1) JPS5782431A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198211A (en) * 1981-05-29 1982-12-04 Sumitomo Electric Ind Ltd Manufacture of heat treat pc steel rod
JPS63151720A (en) * 1986-12-11 1988-06-24 川鉄テクノワイヤ株式会社 High strength pc steel rod and high strength pile
JPH06248642A (en) * 1991-08-09 1994-09-06 Kawatetsu Techno Wire Kk High-strength pile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54143716A (en) * 1978-04-28 1979-11-09 Sumitomo Metal Ind Ltd Manufacture of directly heat treated wire rod
JPS55107734A (en) * 1979-02-14 1980-08-19 Sumitomo Metal Ind Ltd Manufacture of high tensile steel wire rod
JPS55119134A (en) * 1979-03-07 1980-09-12 Sumitomo Metal Ind Ltd Manufacture of high tensile steel wire rod

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54143716A (en) * 1978-04-28 1979-11-09 Sumitomo Metal Ind Ltd Manufacture of directly heat treated wire rod
JPS55107734A (en) * 1979-02-14 1980-08-19 Sumitomo Metal Ind Ltd Manufacture of high tensile steel wire rod
JPS55119134A (en) * 1979-03-07 1980-09-12 Sumitomo Metal Ind Ltd Manufacture of high tensile steel wire rod

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57198211A (en) * 1981-05-29 1982-12-04 Sumitomo Electric Ind Ltd Manufacture of heat treat pc steel rod
JPS63151720A (en) * 1986-12-11 1988-06-24 川鉄テクノワイヤ株式会社 High strength pc steel rod and high strength pile
JPH0541684B2 (en) * 1986-12-11 1993-06-24 Kawatetsu Techno Wire Kk
JPH06248642A (en) * 1991-08-09 1994-09-06 Kawatetsu Techno Wire Kk High-strength pile

Also Published As

Publication number Publication date
JPH0146566B2 (en) 1989-10-09

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