JPS5677332A - Production of steel strip for production of shadow mask - Google Patents
Production of steel strip for production of shadow maskInfo
- Publication number
- JPS5677332A JPS5677332A JP15464879A JP15464879A JPS5677332A JP S5677332 A JPS5677332 A JP S5677332A JP 15464879 A JP15464879 A JP 15464879A JP 15464879 A JP15464879 A JP 15464879A JP S5677332 A JPS5677332 A JP S5677332A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- shadow mask
- production
- annealing
- 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.)
- 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
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)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
PURPOSE:To save annealing and leveling process and simplify production process in producing a shadow mask for the cathode-ray tube of color televisions, by using steel properly added with Al as a blank material in place of conventional low carbon rimmed steel and adjusting the process for production of the steel strip. CONSTITUTION:The steel material having the undermentioned composition is used for the material of a shadow mask used for the cathode-ray tube of color televisions. Namely, a steel plate contg. <=0.10% C, 0.10-0.50% Mn and 0.01-0.10% sol. Al is subjected to hot rolling, cold rolling and intermediate annealing for more than once to be made into an intermediate plate of 2mm. thickness. Next, it is subjected to cold finish rolling at >=30% draft to make plate thickness 0.15mm., thence the plate is wound to a coil. This coil is subjected to final annealing at temperatures above the crystallization temp. and <=620 deg.C, after which skin-pass rolling of 0.3-2.0% draft is applied. The thin steel strip for shadow mask produced in this way is pierced by etching, after which it is blackened without requiring annealing and leveling process and this strip is usable for cathode-ray tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15464879A JPS5677332A (en) | 1979-11-29 | 1979-11-29 | Production of steel strip for production of shadow mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15464879A JPS5677332A (en) | 1979-11-29 | 1979-11-29 | Production of steel strip for production of shadow mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5677332A true JPS5677332A (en) | 1981-06-25 |
| JPS6249324B2 JPS6249324B2 (en) | 1987-10-19 |
Family
ID=15588816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15464879A Granted JPS5677332A (en) | 1979-11-29 | 1979-11-29 | Production of steel strip for production of shadow mask |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5677332A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5940444A (en) * | 1982-08-31 | 1984-03-06 | Toshiba Corp | Color picture tube and manufacture thereof |
| JPS61190041A (en) * | 1985-02-16 | 1986-08-23 | Nisshin Steel Co Ltd | Steel sheet for aperture grill and its manufacture |
| JPH0644920A (en) * | 1992-07-22 | 1994-02-18 | Nkk Corp | Sheet metal for shadow mask and manufacture thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250723A (en) * | 1975-10-18 | 1977-04-23 | Rollei Werke Franke Heidecke | Device for measuring*controlling and indicating photographic camera exposure |
-
1979
- 1979-11-29 JP JP15464879A patent/JPS5677332A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5250723A (en) * | 1975-10-18 | 1977-04-23 | Rollei Werke Franke Heidecke | Device for measuring*controlling and indicating photographic camera exposure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5940444A (en) * | 1982-08-31 | 1984-03-06 | Toshiba Corp | Color picture tube and manufacture thereof |
| JPH0414457B2 (en) * | 1982-08-31 | 1992-03-12 | Tokyo Shibaura Electric Co | |
| JPS61190041A (en) * | 1985-02-16 | 1986-08-23 | Nisshin Steel Co Ltd | Steel sheet for aperture grill and its manufacture |
| JPH0644920A (en) * | 1992-07-22 | 1994-02-18 | Nkk Corp | Sheet metal for shadow mask and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6249324B2 (en) | 1987-10-19 |
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