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JPS57140827A - Method and device for production of high tensile steel plate having no lead sticking - Google Patents

Method and device for production of high tensile steel plate having no lead sticking

Info

Publication number
JPS57140827A
JPS57140827A JP2656181A JP2656181A JPS57140827A JP S57140827 A JPS57140827 A JP S57140827A JP 2656181 A JP2656181 A JP 2656181A JP 2656181 A JP2656181 A JP 2656181A JP S57140827 A JPS57140827 A JP S57140827A
Authority
JP
Japan
Prior art keywords
furnace
steel plate
oxygen
high tensile
tensile steel
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
JP2656181A
Other languages
Japanese (ja)
Other versions
JPS6157895B2 (en
Inventor
Isamu Hirasa
Masao Komai
Daizo Sato
Tatsuo Takakusaki
Shigeru Asada
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.)
Toyo Kohan Co Ltd
Original Assignee
Toyo Kohan Co 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 Toyo Kohan Co Ltd filed Critical Toyo Kohan Co Ltd
Priority to JP2656181A priority Critical patent/JPS57140827A/en
Publication of JPS57140827A publication Critical patent/JPS57140827A/en
Publication of JPS6157895B2 publication Critical patent/JPS6157895B2/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

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 Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To produce a high tensile steel plate of high quality having no lead sticking in production of the high tensile steel plate by austemper treatment by maintaining the oxygen component in the heating furnace atmosphere on the lead bath inlet side within a specific amt. range. CONSTITUTION:A steel strip 1 is supplied in an arrow A direction, and is introduced into a heating furnace 4, where electric current is flowed between electroconducting rolls 2, 7 by the voltage to be applied from an AC power source 10 and the strip is heated to 750-1,000 deg.C. At this time, the atmosphere in the furnace is sucked in an arrow C direction through a conduit 6, and the concn. of oxygen is measured intermittently or continuously with a trace oxygen analytical device. When the concn. of oxygen goes out of a 50-10,000ppm range, the gaseous atmosphere to be fed through a gas inlet 5 into the furnace 4 is controlled. The strip 1 out from the furnace 4 is hardened in a lead bath 11 maintained in a constant temp. range at the MS point or above, whereby the isothermal transformation is completed.
JP2656181A 1981-02-24 1981-02-24 Method and device for production of high tensile steel plate having no lead sticking Granted JPS57140827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2656181A JPS57140827A (en) 1981-02-24 1981-02-24 Method and device for production of high tensile steel plate having no lead sticking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2656181A JPS57140827A (en) 1981-02-24 1981-02-24 Method and device for production of high tensile steel plate having no lead sticking

Publications (2)

Publication Number Publication Date
JPS57140827A true JPS57140827A (en) 1982-08-31
JPS6157895B2 JPS6157895B2 (en) 1986-12-09

Family

ID=12196940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2656181A Granted JPS57140827A (en) 1981-02-24 1981-02-24 Method and device for production of high tensile steel plate having no lead sticking

Country Status (1)

Country Link
JP (1) JPS57140827A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106148671A (en) * 2016-08-28 2016-11-23 浙江宏恩智能装备技术有限公司 A kind of steel band vertical continuous quenching unit and process for quenching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106148671A (en) * 2016-08-28 2016-11-23 浙江宏恩智能装备技术有限公司 A kind of steel band vertical continuous quenching unit and process for quenching

Also Published As

Publication number Publication date
JPS6157895B2 (en) 1986-12-09

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