JPS56139624A - Production of shadow mask - Google Patents

Production of shadow mask

Info

Publication number
JPS56139624A
JPS56139624A JP4234680A JP4234680A JPS56139624A JP S56139624 A JPS56139624 A JP S56139624A JP 4234680 A JP4234680 A JP 4234680A JP 4234680 A JP4234680 A JP 4234680A JP S56139624 A JPS56139624 A JP S56139624A
Authority
JP
Japan
Prior art keywords
mask
annealing
masks
cold rolling
subjecting
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
JP4234680A
Other languages
Japanese (ja)
Inventor
Giichiro Nomura
Osamu Yugai
Isamu Hirasa
Hiroshi Nakajima
Kiwa Watanabe
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 JP4234680A priority Critical patent/JPS56139624A/en
Publication of JPS56139624A publication Critical patent/JPS56139624A/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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips

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 Sheet Steel (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

PURPOSE:To produce a shadow mask of a low cost and superior hole accuracy and formability by subjecting a steel strip of specific composition to specific annealing to mask a steel sheet, and further subjecting the same to specific annealing an a mask forming process. CONSTITUTION:The continuously cast low-carbon aluminum-killed hot-rolled steel plate consisting of <=0.12% C, 0.20-0.5% Mn, 0.02-0.11% SolAl, <=0.03% Si, and the balance Fe and unavoidable impurities is made into a steel sheet by way of pickling, primary cold rolling, bright annealing, secondary cold rolling and slitting. The bright annealing is accomplished at soaking temperatures of recrystallization temp.-800 deg.C. Thence, the sheet is pierced by etching and is shorn to make flat masks. Next, the flat masks and screen spacers are stacked alternately, and are mask-annealed at around 700-900 deg.C, whereby decarburization efficiency is enhanced. Further, after leveling treatment, the masks are press-formed to a required curved surface.
JP4234680A 1980-03-31 1980-03-31 Production of shadow mask Pending JPS56139624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4234680A JPS56139624A (en) 1980-03-31 1980-03-31 Production of shadow mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4234680A JPS56139624A (en) 1980-03-31 1980-03-31 Production of shadow mask

Publications (1)

Publication Number Publication Date
JPS56139624A true JPS56139624A (en) 1981-10-31

Family

ID=12633457

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4234680A Pending JPS56139624A (en) 1980-03-31 1980-03-31 Production of shadow mask

Country Status (1)

Country Link
JP (1) JPS56139624A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5881926A (en) * 1981-11-07 1983-05-17 Toyo Kohan Co Ltd Preparation of material for shadow mask
JPS61139683A (en) * 1984-12-12 1986-06-26 Hitachi Ltd Manufacture of shadow mask
JP2003049219A (en) * 2001-08-07 2003-02-21 Nippon Steel Corp Method for producing high clean thin steel sheet and steel sheet

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5881926A (en) * 1981-11-07 1983-05-17 Toyo Kohan Co Ltd Preparation of material for shadow mask
JPS6116324B2 (en) * 1981-11-07 1986-04-30 Toyo Kohan Kk
JPS61139683A (en) * 1984-12-12 1986-06-26 Hitachi Ltd Manufacture of shadow mask
JPH0583637B2 (en) * 1984-12-12 1993-11-26 Hitachi Ltd
JP2003049219A (en) * 2001-08-07 2003-02-21 Nippon Steel Corp Method for producing high clean thin steel sheet and steel sheet
JP4608148B2 (en) * 2001-08-07 2011-01-05 新日本製鐵株式会社 Manufacturing method of highly clean thin steel plate and steel plate

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