JPS57171619A - Production of stainless steel - Google Patents

Production of stainless steel

Info

Publication number
JPS57171619A
JPS57171619A JP5593681A JP5593681A JPS57171619A JP S57171619 A JPS57171619 A JP S57171619A JP 5593681 A JP5593681 A JP 5593681A JP 5593681 A JP5593681 A JP 5593681A JP S57171619 A JPS57171619 A JP S57171619A
Authority
JP
Japan
Prior art keywords
stainless steel
annealing
electron guns
austenitic stainless
scalping
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
JP5593681A
Other languages
Japanese (ja)
Inventor
Hidekazu Akiyoshi
Hidemichi Mishima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5593681A priority Critical patent/JPS57171619A/en
Publication of JPS57171619A publication Critical patent/JPS57171619A/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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni

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)

Abstract

PURPOSE:To prevent intergranular oxidation and to make pressing as an electrode easy in the stage of producing an electrode material for electron guns for cathode-ray tubes by using vacuum molten austenitic stainless steel by performing all the annealing works during production stage in a dry hydrogen atmosphere. CONSTITUTION:Nonmagnetic austenitic stainless steel is used as an electrode material for electron guns for cathode ray tubes. In the case of working the ingot of vacuum molten austenitic stainless steel in the srages of scalping, forging, scalping, annealing, hot rolling, pickling, annealing, cold rolling and bright annealing in order to improve mechanical properties such as tensile strength, elongation and others required during pressing for working to eletrodes, all the annealing works are accomplished in a dry hydrogen atmosphere of <=dew point -50 deg.C, whereby the intergranular oxidation of the stainless steel material is prevented. There is no degradation of mechanical properties, and the material is worked easily to the electrodes for electron guns.
JP5593681A 1981-04-14 1981-04-14 Production of stainless steel Pending JPS57171619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5593681A JPS57171619A (en) 1981-04-14 1981-04-14 Production of stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5593681A JPS57171619A (en) 1981-04-14 1981-04-14 Production of stainless steel

Publications (1)

Publication Number Publication Date
JPS57171619A true JPS57171619A (en) 1982-10-22

Family

ID=13012957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5593681A Pending JPS57171619A (en) 1981-04-14 1981-04-14 Production of stainless steel

Country Status (1)

Country Link
JP (1) JPS57171619A (en)

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