JPS6477843A - Shadow mask composition - Google Patents
Shadow mask compositionInfo
- Publication number
- JPS6477843A JPS6477843A JP23216987A JP23216987A JPS6477843A JP S6477843 A JPS6477843 A JP S6477843A JP 23216987 A JP23216987 A JP 23216987A JP 23216987 A JP23216987 A JP 23216987A JP S6477843 A JPS6477843 A JP S6477843A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- shadow mask
- metals
- tensile force
- bimetal
- 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
Links
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
PURPOSE:To prevent bending of a frame resulting from the tension of a shadow mask and unifying the tensile force of the shadow mask by contacting metals with the thermal expansivity different from that of the frame to the sides of the frame, and composing a bimetal with frame and the metals. CONSTITUTION:At the outer side surfaces of a frame 1, metals 2 with the thermal expansivity larger than that of the frame 1 are stuck or connected by the welding or the like, and a bimetal structure is formed by the frame 1 and the metals 2. By heating the bimetal and raising the temperature, the frame 1 is deformed inward because the thermal expansivity of the metals 2 is larger than that of the frame 1. To the frame 1 in the condition deformed inward in such a way, the shadow mask 3 in the condition a tensile force is applied is welded continuously along the welding line 4. Then, by cooling (to the normal temperature), the frame restores to the original condition. By the outward expansion of the frame 1, an even tensile force is applied on the shadow mask 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23216987A JPS6477843A (en) | 1987-09-18 | 1987-09-18 | Shadow mask composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23216987A JPS6477843A (en) | 1987-09-18 | 1987-09-18 | Shadow mask composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477843A true JPS6477843A (en) | 1989-03-23 |
Family
ID=16935076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23216987A Pending JPS6477843A (en) | 1987-09-18 | 1987-09-18 | Shadow mask composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477843A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000033506A (en) * | 1998-11-24 | 2000-06-15 | 김순택 | Mask frame for cathode ray tube |
WO2001048784A1 (en) * | 1999-12-24 | 2001-07-05 | Koninklijke Philips Electronics N.V. | A color cathode ray tube comprising a tension mask |
SG85107A1 (en) * | 1995-07-26 | 2001-12-19 | Sony Corp | Colour cathode-ray tube and method of manufacturing the same |
JP2013225986A (en) * | 2012-04-20 | 2013-10-31 | Yaskawa Electric Corp | Field yoke assembly and linear motor |
-
1987
- 1987-09-18 JP JP23216987A patent/JPS6477843A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG85107A1 (en) * | 1995-07-26 | 2001-12-19 | Sony Corp | Colour cathode-ray tube and method of manufacturing the same |
KR20000033506A (en) * | 1998-11-24 | 2000-06-15 | 김순택 | Mask frame for cathode ray tube |
WO2001048784A1 (en) * | 1999-12-24 | 2001-07-05 | Koninklijke Philips Electronics N.V. | A color cathode ray tube comprising a tension mask |
JP2013225986A (en) * | 2012-04-20 | 2013-10-31 | Yaskawa Electric Corp | Field yoke assembly and linear motor |
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