JPS54143716A - Manufacture of directly heat treated wire rod - Google Patents

Manufacture of directly heat treated wire rod

Info

Publication number
JPS54143716A
JPS54143716A JP5209778A JP5209778A JPS54143716A JP S54143716 A JPS54143716 A JP S54143716A JP 5209778 A JP5209778 A JP 5209778A JP 5209778 A JP5209778 A JP 5209778A JP S54143716 A JPS54143716 A JP S54143716A
Authority
JP
Japan
Prior art keywords
wire rod
steel wire
cooling
mill
finish rolling
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
JP5209778A
Other languages
Japanese (ja)
Other versions
JPS6115129B2 (en
Inventor
Katsuhiro Uno
Takuo Mizoguchi
Shuichi Fukushima
Masuyoshi Toyonaga
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 JP5209778A priority Critical patent/JPS54143716A/en
Publication of JPS54143716A publication Critical patent/JPS54143716A/en
Publication of JPS6115129B2 publication Critical patent/JPS6115129B2/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)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To manufacture a low strength steel wire rod with superior uniformity over the whole length by preliminarily cooling a steel wire rod before a finish rolling mill, followed by finish rolling, forced cooling, coiling and cooling at a cooling rate below 1 deg.C/sec for transformation. CONSTITUTION:When steel is hot rolled into a steel wire rod, one or more preliminary coolers 2 are set between intermediate rolling mill 1 and finish rolling mill 3. A wire rod is cooled with coolers 2 to 600-900 deg.C before mill 3. The rod is rolled to the final diameter with mill 3, cooled with forced cooler 4, coiled with laying cone 5, and further cooled with forced air cooler 6' at a cooling rate below 1 deg.C/sec to make recrystallized austenite grains fine, lowering hardening sensibility. Thus, a low strength steel wire rod is manufactured having low uniform tensile strength and no bending breakage over the whole length.
JP5209778A 1978-04-28 1978-04-28 Manufacture of directly heat treated wire rod Granted JPS54143716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5209778A JPS54143716A (en) 1978-04-28 1978-04-28 Manufacture of directly heat treated wire rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5209778A JPS54143716A (en) 1978-04-28 1978-04-28 Manufacture of directly heat treated wire rod

Publications (2)

Publication Number Publication Date
JPS54143716A true JPS54143716A (en) 1979-11-09
JPS6115129B2 JPS6115129B2 (en) 1986-04-22

Family

ID=12905334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5209778A Granted JPS54143716A (en) 1978-04-28 1978-04-28 Manufacture of directly heat treated wire rod

Country Status (1)

Country Link
JP (1) JPS54143716A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735639A (en) * 1980-08-08 1982-02-26 Sumitomo Electric Ind Ltd Production of high strength steel wire material
JPS5773123A (en) * 1980-10-22 1982-05-07 Sumitomo Metal Ind Ltd Producton of low alloy steel of superior cold workability
JPS5782431A (en) * 1980-11-08 1982-05-22 Sumitomo Metal Ind Ltd Production of high tension wire rod
JPS57161037A (en) * 1981-03-31 1982-10-04 Kawasaki Steel Corp Direct working and heat treatment device train for hot rolled wire rod
JPS60170507A (en) * 1983-10-31 1985-09-04 モルガン　コンストラクシヨン　カンパニイ Rolling apparatus and method
JPS6250411A (en) * 1985-08-30 1987-03-05 Kobe Steel Ltd Production of rolled steel material having excellent homogeneity

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124448A (en) * 1974-08-23 1976-02-27 Dezain Senchurii Kk MOREBOSHIRINGU
JPS5154814A (en) * 1974-10-31 1976-05-14 Kobe Steel Ltd Senzaino chokusetsunetsushorihoho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124448A (en) * 1974-08-23 1976-02-27 Dezain Senchurii Kk MOREBOSHIRINGU
JPS5154814A (en) * 1974-10-31 1976-05-14 Kobe Steel Ltd Senzaino chokusetsunetsushorihoho

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735639A (en) * 1980-08-08 1982-02-26 Sumitomo Electric Ind Ltd Production of high strength steel wire material
JPH0127131B2 (en) * 1980-08-08 1989-05-26 Sumitomo Electric Industries
JPS5773123A (en) * 1980-10-22 1982-05-07 Sumitomo Metal Ind Ltd Producton of low alloy steel of superior cold workability
JPH0112815B2 (en) * 1980-10-22 1989-03-02 Sumitomo Metal Ind
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
JPS57161037A (en) * 1981-03-31 1982-10-04 Kawasaki Steel Corp Direct working and heat treatment device train for hot rolled wire rod
JPS6227127B2 (en) * 1981-03-31 1987-06-12 Kawasaki Steel Co
JPS60170507A (en) * 1983-10-31 1985-09-04 モルガン　コンストラクシヨン　カンパニイ Rolling apparatus and method
JPH032561B2 (en) * 1983-10-31 1991-01-16 Morgan Construction Co
JPS6250411A (en) * 1985-08-30 1987-03-05 Kobe Steel Ltd Production of rolled steel material having excellent homogeneity

Also Published As

Publication number Publication date
JPS6115129B2 (en) 1986-04-22

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