JPS6452024A - Production of shadow mask material for cathode ray tube - Google Patents

Production of shadow mask material for cathode ray tube

Info

Publication number
JPS6452024A
JPS6452024A JP20984587A JP20984587A JPS6452024A JP S6452024 A JPS6452024 A JP S6452024A JP 20984587 A JP20984587 A JP 20984587A JP 20984587 A JP20984587 A JP 20984587A JP S6452024 A JPS6452024 A JP S6452024A
Authority
JP
Japan
Prior art keywords
cold rolling
stage
shadow mask
recrystallization annealing
final
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
JP20984587A
Other languages
Japanese (ja)
Inventor
Masanori Azuma
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP20984587A priority Critical patent/JPS6452024A/en
Publication of JPS6452024A publication Critical patent/JPS6452024A/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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys

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)

Abstract

PURPOSE:To produce a shadow mask original plate which has the smaller intra-surface anisotropy of the coefft. of elasticity by specifying the cold rolling draft of the cold rolling just before the final recrystallization annealing at the time of repeatedly subjecting the hot rolled sheet of an Fe-Ni 'Imvar(R)' alloy having a low coefft. of thermal expansion to the cold rolling and the recrystallization annealing. CONSTITUTION:The hot rolled material of the Fe-Ni 'Imvar(R)' alloy having the low coefft. of thermal expansion is repeatedly subjected to >=2 passes of the combination of the cold rolling stage and the recrystallization annealing stage and the final stage is executed by a hardness imparting cold rolling stage to produce the shadow mask material. The cold rolling just before the final recrystallization annealing stage is executed at 40-80% cold rolling draft and the final cold rolling to impart the hardness is executed at about <=40% draft. The content of Ni in the Fe-Ni 'Imvar(R)' alloy is specified to 34-38wt.% and part of Ni can be substd. with Co up to 1-10wt.%. The contents of Cr, Mo, Nb, Ti, Zr, Ta, Cu, and W which are additive elements are respectively <=2%. The shadow mask original plate which allows the formation of the fine holes to be passed with electron beams with high accuracy and high density is thereby obtd.
JP20984587A 1987-08-24 1987-08-24 Production of shadow mask material for cathode ray tube Pending JPS6452024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20984587A JPS6452024A (en) 1987-08-24 1987-08-24 Production of shadow mask material for cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20984587A JPS6452024A (en) 1987-08-24 1987-08-24 Production of shadow mask material for cathode ray tube

Publications (1)

Publication Number Publication Date
JPS6452024A true JPS6452024A (en) 1989-02-28

Family

ID=16579572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20984587A Pending JPS6452024A (en) 1987-08-24 1987-08-24 Production of shadow mask material for cathode ray tube

Country Status (1)

Country Link
JP (1) JPS6452024A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664908A1 (en) * 1990-07-17 1992-01-24 Nippon Kokan Kk FER-NICKEL ALLOY SHEET FOR TELEVISION TUBE MASK.
JPH04231194A (en) * 1990-10-26 1992-08-20 Inco Alloys Internatl Inc Welding material for alloy having low coefficient of thermal expansion
JPH04289149A (en) * 1991-03-15 1992-10-14 Sumitomo Special Metals Co Ltd Low thermal expansion material and its manufacture
JPH0586441A (en) * 1991-09-27 1993-04-06 Yamaha Corp Fi-ni-co alloy for shadow mask
US5453138A (en) * 1992-02-28 1995-09-26 Nkk Corporation Alloy sheet
US5456771A (en) * 1992-01-24 1995-10-10 Nkk Corporation Thin Fe-Ni alloy sheet for shadow mask
US5520755A (en) * 1992-01-24 1996-05-28 Nkk Corporation Method for manufacturing thin Fe--Ni alloy sheet for shadow mask
US5605582A (en) * 1992-01-24 1997-02-25 Nkk Corporation Alloy sheet having high etching performance
WO2003069007A1 (en) * 2002-02-15 2003-08-21 Jfe Steel Corporation Low thermal expansion alloy thin sheet and its production method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664908A1 (en) * 1990-07-17 1992-01-24 Nippon Kokan Kk FER-NICKEL ALLOY SHEET FOR TELEVISION TUBE MASK.
JPH04231194A (en) * 1990-10-26 1992-08-20 Inco Alloys Internatl Inc Welding material for alloy having low coefficient of thermal expansion
JPH04289149A (en) * 1991-03-15 1992-10-14 Sumitomo Special Metals Co Ltd Low thermal expansion material and its manufacture
JPH0586441A (en) * 1991-09-27 1993-04-06 Yamaha Corp Fi-ni-co alloy for shadow mask
US5456771A (en) * 1992-01-24 1995-10-10 Nkk Corporation Thin Fe-Ni alloy sheet for shadow mask
US5520755A (en) * 1992-01-24 1996-05-28 Nkk Corporation Method for manufacturing thin Fe--Ni alloy sheet for shadow mask
US5605582A (en) * 1992-01-24 1997-02-25 Nkk Corporation Alloy sheet having high etching performance
US5453138A (en) * 1992-02-28 1995-09-26 Nkk Corporation Alloy sheet
WO2003069007A1 (en) * 2002-02-15 2003-08-21 Jfe Steel Corporation Low thermal expansion alloy thin sheet and its production method

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