JPS5782432A - Production of high tensile wire rod - Google Patents

Production of high tensile wire rod

Info

Publication number
JPS5782432A
JPS5782432A JP15727680A JP15727680A JPS5782432A JP S5782432 A JPS5782432 A JP S5782432A JP 15727680 A JP15727680 A JP 15727680A JP 15727680 A JP15727680 A JP 15727680A JP S5782432 A JPS5782432 A JP S5782432A
Authority
JP
Japan
Prior art keywords
wire rod
finish rolling
martensite
high tensile
austenite
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
JP15727680A
Other languages
Japanese (ja)
Other versions
JPS6159378B2 (en
Inventor
Katsuyoshi Kajiyama
Akira Aida
Takuo Mizoguchi
Shoji Nishimura
Tetsu Ono
Takashi Fukuda
Kenji Aihara
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 JP15727680A priority Critical patent/JPS5782432A/en
Priority to GB8133386A priority patent/GB2088257B/en
Priority to KR1019810004262A priority patent/KR890002620B1/en
Publication of JPS5782432A publication Critical patent/JPS5782432A/en
Priority to US06/563,322 priority patent/US4604146A/en
Publication of JPS6159378B2 publication Critical patent/JPS6159378B2/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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Abstract

PURPOSE:To produce a high tensile wire rod of high grade efficiently at a low cost by precooling a material to be rolled to specific temps. then finish rolling the same thence turning the same to supercooled austenite followed by controlled cooling to turn to martensite and drawing. CONSTITUTION:In hot rolling of a wire rod, a material to be rolled is precooled to 750-900 deg.C by a cooler provided between an intermediate rolling mill group and a finish rolling mill, after which it is subjected to finish rolling. Thence, it is quickly cooled to temps. below 700 deg.C with a water cooling installation after the finish rolling to the state of supercooled austenite, whereby austenite grains are fined. Next, the state of supercooled austenite is turned to martensite, by controlled cooling. The wire rod turned to martensite is drawn with roller dies without descaling. After the drawing, it is subjected to tempering and warm straightening according to need.
JP15727680A 1980-11-08 1980-11-08 Production of high tensile wire rod Granted JPS5782432A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP15727680A JPS5782432A (en) 1980-11-08 1980-11-08 Production of high tensile wire rod
GB8133386A GB2088257B (en) 1980-11-08 1981-11-05 Making rod or wire
KR1019810004262A KR890002620B1 (en) 1980-11-08 1981-11-07 Process for manufacturing high tensile steel wire
US06/563,322 US4604146A (en) 1980-11-08 1983-11-07 Process for manufacturing high tensile steel wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15727680A JPS5782432A (en) 1980-11-08 1980-11-08 Production of high tensile wire rod

Publications (2)

Publication Number Publication Date
JPS5782432A true JPS5782432A (en) 1982-05-22
JPS6159378B2 JPS6159378B2 (en) 1986-12-16

Family

ID=15646107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15727680A Granted JPS5782432A (en) 1980-11-08 1980-11-08 Production of high tensile wire rod

Country Status (1)

Country Link
JP (1) JPS5782432A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013029A (en) * 1983-07-01 1985-01-23 Kawasaki Steel Corp Production of high-tension steel bar material
JPS6015211U (en) * 1983-07-08 1985-02-01 株式会社吉野工業所 Synthetic resin compact container
KR100421733B1 (en) * 1998-12-24 2004-05-20 주식회사 포스코 Carbon dioxide gas arc welding rod wire manufacturing method
CN111424210A (en) * 2020-03-31 2020-07-17 江苏省沙钢钢铁研究院有限公司 Hot-rolled wire rod for welding wire and production method thereof
CN112239803A (en) * 2020-10-15 2021-01-19 中天钢铁集团有限公司 Controlled rolling and controlled cooling method for reducing martensite in high alloy steel hot-rolled wire rod microstructure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52129611A (en) * 1976-04-24 1977-10-31 Nippon Steel Corp High tensile steel wire having excellent ductility and its production process
JPS5324891A (en) * 1976-08-20 1978-03-08 Eisai Co Ltd Circuit and apparatus for inspective selection
JPS558483A (en) * 1978-07-05 1980-01-22 Sumitomo Metal Ind Ltd Manufacture of directly heat treated high tension rod
JPS558484A (en) * 1978-07-05 1980-01-22 Sumitomo Metal Ind Ltd Manufacture of directly heat treated high strength high carbon steel rod

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52129611A (en) * 1976-04-24 1977-10-31 Nippon Steel Corp High tensile steel wire having excellent ductility and its production process
JPS5324891A (en) * 1976-08-20 1978-03-08 Eisai Co Ltd Circuit and apparatus for inspective selection
JPS558483A (en) * 1978-07-05 1980-01-22 Sumitomo Metal Ind Ltd Manufacture of directly heat treated high tension rod
JPS558484A (en) * 1978-07-05 1980-01-22 Sumitomo Metal Ind Ltd Manufacture of directly heat treated high strength high carbon steel rod

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS6015211U (en) * 1983-07-08 1985-02-01 株式会社吉野工業所 Synthetic resin compact container
JPS6238573Y2 (en) * 1983-07-08 1987-10-01
KR100421733B1 (en) * 1998-12-24 2004-05-20 주식회사 포스코 Carbon dioxide gas arc welding rod wire manufacturing method
CN111424210A (en) * 2020-03-31 2020-07-17 江苏省沙钢钢铁研究院有限公司 Hot-rolled wire rod for welding wire and production method thereof
CN112239803A (en) * 2020-10-15 2021-01-19 中天钢铁集团有限公司 Controlled rolling and controlled cooling method for reducing martensite in high alloy steel hot-rolled wire rod microstructure

Also Published As

Publication number Publication date
JPS6159378B2 (en) 1986-12-16

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