JPS57210542A - Electron gun sealing process for cathode-ray tube - Google Patents
Electron gun sealing process for cathode-ray tubeInfo
- Publication number
- JPS57210542A JPS57210542A JP9527581A JP9527581A JPS57210542A JP S57210542 A JPS57210542 A JP S57210542A JP 9527581 A JP9527581 A JP 9527581A JP 9527581 A JP9527581 A JP 9527581A JP S57210542 A JPS57210542 A JP S57210542A
- Authority
- JP
- Japan
- Prior art keywords
- stem
- neck
- sealing
- vicinity
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/26—Sealing together parts of vessels
- H01J9/263—Sealing together parts of vessels specially adapted for cathode-ray tubes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
PURPOSE:To lessen defectives by a glass piece inside the cathode-ray tube and improve length accuracy after being sealed, by rounding a sealed part by means of annealing after drawing out a deposit place and its vicinity as long as by the fixed size and thinning the thickness of a neck part upon deposit welding of the relatively thick neck and the stem. CONSTITUTION:After a stem 21 is welded to a lower end 12 of a neck 11, when this weld point and its vicinity is drawn out as long as by the fixed size with the stem 21 shifted, thickness in the vicinity of the neck lower end 12 becomes thinned as shown in figure C and thereby operation on annealing and rounding the sealing part comes easy. Also at the time of shifting the stem, if it is stopped at a fixed point, the length or sealing length ranging from the reference line of a funnel to the stem can be made to be given value, permitting mass production of uniform goods. According to this invention, such a job as sealing a stem to a thick neck one or a stem sealing with a thick neck that is so far considered to be difficult by the conventional techniques is now able to be done easily and economically without the necessity of a specially shaped neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9527581A JPS57210542A (en) | 1981-06-22 | 1981-06-22 | Electron gun sealing process for cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9527581A JPS57210542A (en) | 1981-06-22 | 1981-06-22 | Electron gun sealing process for cathode-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57210542A true JPS57210542A (en) | 1982-12-24 |
| JPH027495B2 JPH027495B2 (en) | 1990-02-19 |
Family
ID=14133216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9527581A Granted JPS57210542A (en) | 1981-06-22 | 1981-06-22 | Electron gun sealing process for cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57210542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6269434A (en) * | 1985-09-20 | 1987-03-30 | Hitachi Ltd | Cullet-less sealing method for color cathode-ray tube |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI788757B (en) | 2020-01-16 | 2023-01-01 | 日商旭化成股份有限公司 | Polycarbonate resin, polycarbonate resin composition, optical molded product containing the same, and cyclic carbonate |
| KR20230143168A (en) | 2021-03-30 | 2023-10-11 | 아사히 가세이 가부시키가이샤 | polycarbonate resin composition |
-
1981
- 1981-06-22 JP JP9527581A patent/JPS57210542A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6269434A (en) * | 1985-09-20 | 1987-03-30 | Hitachi Ltd | Cullet-less sealing method for color cathode-ray tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH027495B2 (en) | 1990-02-19 |
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