JPS579857A - Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture - Google Patents

Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture

Info

Publication number
JPS579857A
JPS579857A JP8278480A JP8278480A JPS579857A JP S579857 A JPS579857 A JP S579857A JP 8278480 A JP8278480 A JP 8278480A JP 8278480 A JP8278480 A JP 8278480A JP S579857 A JPS579857 A JP S579857A
Authority
JP
Japan
Prior art keywords
mask
color television
shadow mask
flat
cathode
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
JP8278480A
Other languages
Japanese (ja)
Inventor
Takeshi Tsuda
Masahiro Shimose
Osamu Miyamoto
Ichiu Takagi
Takashi Matsukura
Yasuo Imamura
Hironori Katou
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.)
Dai Nippon Printing Co Ltd
Nippon Steel Nisshin Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Nisshin Steel 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 Dai Nippon Printing Co Ltd, Nisshin Steel Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP8278480A priority Critical patent/JPS579857A/en
Publication of JPS579857A publication Critical patent/JPS579857A/en
Pending legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Sheet Steel (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE: To press-form a flat mask along the curved shape of the cathoderay tube of a color television without carrying out leveling by using a low-carbon steel having a specified composition contg. Ti as the material of a shadow mask for the cathoderay tube.
CONSTITUTION: A shadow mask used in the cathoderay tube of a color television is manufactured with a low-carbon steel having a composition contg. 0.001W0.020% C, 0.05W0.40% Mn, 0.10W0.30% Cr, <0.015% N and 4×(C%+N%)W0.40% available Ti (total Ti minus Ti of Ti oxide). A flat mask made of extrathin strip of this steel is pierced and subjected to recrystallization annealing at ≥650°C, or the mask is pierced after the annealing. It is not required to level the flat mask before press forming along the curved surface of the cathoderay tube, so the process of manufacturing the shadow mask can be simplified.
COPYRIGHT: (C)1982,JPO&Japio
JP8278480A 1980-06-20 1980-06-20 Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture Pending JPS579857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8278480A JPS579857A (en) 1980-06-20 1980-06-20 Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8278480A JPS579857A (en) 1980-06-20 1980-06-20 Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture

Publications (1)

Publication Number Publication Date
JPS579857A true JPS579857A (en) 1982-01-19

Family

ID=13784034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8278480A Pending JPS579857A (en) 1980-06-20 1980-06-20 Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture

Country Status (1)

Country Link
JP (1) JPS579857A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5064128A (en) * 1973-10-11 1975-05-31
JPS5562123A (en) * 1978-10-31 1980-05-10 Nippon Kokan Kk <Nkk> Preparation of shadow mask
JPS5573825A (en) * 1978-11-24 1980-06-03 Nisshin Steel Co Ltd Production of hot-dipped steel plate for ultra-deep drawing
JPS5623264A (en) * 1979-08-02 1981-03-05 Kobe Steel Ltd Production of galvanized steel sheet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5064128A (en) * 1973-10-11 1975-05-31
JPS5562123A (en) * 1978-10-31 1980-05-10 Nippon Kokan Kk <Nkk> Preparation of shadow mask
JPS5573825A (en) * 1978-11-24 1980-06-03 Nisshin Steel Co Ltd Production of hot-dipped steel plate for ultra-deep drawing
JPS5623264A (en) * 1979-08-02 1981-03-05 Kobe Steel Ltd Production of galvanized steel sheet

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