JPS55107734A - Manufacture of high tensile steel wire rod - Google Patents

Manufacture of high tensile steel wire rod

Info

Publication number
JPS55107734A
JPS55107734A JP1580779A JP1580779A JPS55107734A JP S55107734 A JPS55107734 A JP S55107734A JP 1580779 A JP1580779 A JP 1580779A JP 1580779 A JP1580779 A JP 1580779A JP S55107734 A JPS55107734 A JP S55107734A
Authority
JP
Japan
Prior art keywords
wire rod
rod
steel wire
high tensile
blast
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
JP1580779A
Other languages
Japanese (ja)
Other versions
JPS6151007B2 (en
Inventor
Katsuyoshi Kajiyama
Akira Aida
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 JP1580779A priority Critical patent/JPS55107734A/en
Publication of JPS55107734A publication Critical patent/JPS55107734A/en
Publication of JPS6151007B2 publication Critical patent/JPS6151007B2/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

Abstract

PURPOSE:To obtain a high tensile steel wire rod having a high yield point and superior relaxation resistance by hot rolling a steel of a specified component system followed by forced cooling, spreading in the form of a ring, cooling with a blast and warm leveling. CONSTITUTION:A steel consisting of C 0.10-0.40%, Si 0.05-1.5%, Mn 0.70- 2.50%, Cr 0.10-1.50%, B 0.0002-0.0050%, and the balance Fe and inevitable impurities is hot rolled to a wire rod, immediately forced to cool, and spread on a conveyor in the form of a ring at a supercooled austenite state. This rod is then cooled with a blast at rate of 7 deg.C/sec or more to convert the whole rod into of martensite structure. It is coiled, slowly cooled, self-tempered to provide high toughness and high strength of 110kg/mm<2> or more, and warm leveled at 100-450 deg.C so that the bending degree becomes 4mm or less per 1.5m.
JP1580779A 1979-02-14 1979-02-14 Manufacture of high tensile steel wire rod Granted JPS55107734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1580779A JPS55107734A (en) 1979-02-14 1979-02-14 Manufacture of high tensile steel wire rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1580779A JPS55107734A (en) 1979-02-14 1979-02-14 Manufacture of high tensile steel wire rod

Publications (2)

Publication Number Publication Date
JPS55107734A true JPS55107734A (en) 1980-08-19
JPS6151007B2 JPS6151007B2 (en) 1986-11-07

Family

ID=11899109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1580779A Granted JPS55107734A (en) 1979-02-14 1979-02-14 Manufacture of high tensile steel wire rod

Country Status (1)

Country Link
JP (1) JPS55107734A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782431A (en) * 1980-11-08 1982-05-22 Sumitomo Metal Ind Ltd Production of high tension wire rod
JPS6013029A (en) * 1983-07-01 1985-01-23 Kawasaki Steel Corp Production of high-tension steel bar material
KR970065739A (en) * 1996-03-30 1997-10-13 귄터 플레밍, 빌프리트 발트 Cooling method of roller warmed steel profile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104946987A (en) * 2015-05-28 2015-09-30 武汉钢铁(集团)公司 High-strength finish rolled steel bar and production method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782431A (en) * 1980-11-08 1982-05-22 Sumitomo Metal Ind Ltd Production of high tension wire rod
JPH0146566B2 (en) * 1980-11-08 1989-10-09 Sumitomo Metal Ind
JPS6013029A (en) * 1983-07-01 1985-01-23 Kawasaki Steel Corp Production of high-tension steel bar material
JPH0565567B2 (en) * 1983-07-01 1993-09-20 Kawasaki Steel Co
KR970065739A (en) * 1996-03-30 1997-10-13 귄터 플레밍, 빌프리트 발트 Cooling method of roller warmed steel profile

Also Published As

Publication number Publication date
JPS6151007B2 (en) 1986-11-07

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