JPS5562123A - Preparation of shadow mask - Google Patents
Preparation of shadow maskInfo
- Publication number
- JPS5562123A JPS5562123A JP13324578A JP13324578A JPS5562123A JP S5562123 A JPS5562123 A JP S5562123A JP 13324578 A JP13324578 A JP 13324578A JP 13324578 A JP13324578 A JP 13324578A JP S5562123 A JPS5562123 A JP S5562123A
- Authority
- JP
- Japan
- Prior art keywords
- cold rolled
- sol
- shadow mask
- annealing
- rolling
- 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.)
- Granted
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
Abstract
PURPOSE:To have a less unevenness of hole shape and not to change the hole shape by press processing, by making Al killed cold rolled steel sheet having a specific constitution, limited the value of sol. Al/N by carrying out hot and cold rolling -annealing- skin-pass rolling of slab at the time of manufacturing color TV shadow mask. CONSTITUTION:Al killed cold rolled steel sheet composed of C<=0.01%, Mn; 0.1-1%, S<=0.025%, Sol.Al; 0.01-0.12%, N<=100ppm, Fe and inevitable impurities; balance and made (Sol.Al/N)X14/27>=1.5 and also fixed a greater part of N as AlN, is obtained by carrying out hot.cold rolling -annealing- skin-pass rolling of slab. Next, the above cold rolled sheet is cold rolled (draft 40%) again and thickness of the sheet is made 0.2mm or less. Then, the last annealing is carried out at 600-800 deg.C for 1-10 minutes after perforating by photo etching in usual shadow mask manufacturing process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13324578A JPS5830929B2 (en) | 1978-10-31 | 1978-10-31 | How to make a shadow mask |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13324578A JPS5830929B2 (en) | 1978-10-31 | 1978-10-31 | How to make a shadow mask |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5562123A true JPS5562123A (en) | 1980-05-10 |
JPS5830929B2 JPS5830929B2 (en) | 1983-07-02 |
Family
ID=15100092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13324578A Expired JPS5830929B2 (en) | 1978-10-31 | 1978-10-31 | How to make a shadow mask |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5830929B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS579857A (en) * | 1980-06-20 | 1982-01-19 | Nisshin Steel Co Ltd | Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture |
EP1298227A1 (en) * | 2000-06-26 | 2003-04-02 | Toyo Kohan Co., Ltd. | Raw material for shadow mask for color image receiving tube |
-
1978
- 1978-10-31 JP JP13324578A patent/JPS5830929B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS579857A (en) * | 1980-06-20 | 1982-01-19 | Nisshin Steel Co Ltd | Flat mask for manufacturing shadow mask for cathode-ray tube of color television and its manufacture |
EP1298227A1 (en) * | 2000-06-26 | 2003-04-02 | Toyo Kohan Co., Ltd. | Raw material for shadow mask for color image receiving tube |
EP1298227A4 (en) * | 2000-06-26 | 2005-11-09 | Toyo Kohan Co Ltd | Raw material for shadow mask for color image receiving tube |
Also Published As
Publication number | Publication date |
---|---|
JPS5830929B2 (en) | 1983-07-02 |
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