JPS5262117A - Process for strengthening steel - Google Patents

Process for strengthening steel

Info

Publication number
JPS5262117A
JPS5262117A JP13844675A JP13844675A JPS5262117A JP S5262117 A JPS5262117 A JP S5262117A JP 13844675 A JP13844675 A JP 13844675A JP 13844675 A JP13844675 A JP 13844675A JP S5262117 A JPS5262117 A JP S5262117A
Authority
JP
Japan
Prior art keywords
steel
heating
strengthening steel
cooling
temperature
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.)
Pending
Application number
JP13844675A
Other languages
Japanese (ja)
Inventor
Ryoki Oshida
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP13844675A priority Critical patent/JPS5262117A/en
Publication of JPS5262117A publication Critical patent/JPS5262117A/en
Pending 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/78—Combined heat-treatments not provided for above
    • C21D1/785—Thermocycling

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

Abstract

PURPOSE:To cause uniform grain refining and to increase tensile strength of steel by controlling upper limit of temperature and rate of heating or cooling in a specific region in heating and cooling steel in a temperature cycle through a transformation point.
JP13844675A 1975-11-18 1975-11-18 Process for strengthening steel Pending JPS5262117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13844675A JPS5262117A (en) 1975-11-18 1975-11-18 Process for strengthening steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13844675A JPS5262117A (en) 1975-11-18 1975-11-18 Process for strengthening steel

Publications (1)

Publication Number Publication Date
JPS5262117A true JPS5262117A (en) 1977-05-23

Family

ID=15222181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13844675A Pending JPS5262117A (en) 1975-11-18 1975-11-18 Process for strengthening steel

Country Status (1)

Country Link
JP (1) JPS5262117A (en)

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