JPS54130801A - Production of hermetically sealed electric apparatus - Google Patents
Production of hermetically sealed electric apparatusInfo
- Publication number
- JPS54130801A JPS54130801A JP3864878A JP3864878A JPS54130801A JP S54130801 A JPS54130801 A JP S54130801A JP 3864878 A JP3864878 A JP 3864878A JP 3864878 A JP3864878 A JP 3864878A JP S54130801 A JPS54130801 A JP S54130801A
- Authority
- JP
- Japan
- Prior art keywords
- aperture part
- cover material
- circumference
- seal
- case
- 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
- Casings For Electric Apparatus (AREA)
Abstract
PURPOSE: To make a high-airtightness accurate seal possible by expanding an aperture part thermally and cooling the aperture part to contract it after fitting a cover material to the aperture part.
CONSTITUTION: Ring step part 4 is formed on the inside circumference of aperture part 3 of case 1, and circumference groove 5 is provided at the circumference edge of cover material 2, and seal material 6 consisting of half-setting-property, thermosetting-property or thermoplastic synthetic resin is inserted into circumference groove 5. Then, case 1 is first heated to expand aperture part 3 thermally so that aperture part 3 may be larger than cover material 2, and cover material 2 is put on ring step part 4. After that, when case 1 is cooled to contract aperture part 3 thermally, the circumference edge of cover material 2 is fitted to the inside circumference of aperture part 3 closely, and aperture part 3 is sealed hermetically. In this case, the seal dependent upon the adhesion force of seal material 6 which is inserted into circumference groove 5 of cover material 2 takes effect to make a high-airtightness seal possible.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3864878A JPS54130801A (en) | 1978-03-31 | 1978-03-31 | Production of hermetically sealed electric apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3864878A JPS54130801A (en) | 1978-03-31 | 1978-03-31 | Production of hermetically sealed electric apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54130801A true JPS54130801A (en) | 1979-10-11 |
Family
ID=12531063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3864878A Pending JPS54130801A (en) | 1978-03-31 | 1978-03-31 | Production of hermetically sealed electric apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54130801A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008136220A (en) * | 2004-04-14 | 2008-06-12 | Maspro Denkoh Corp | Shield case |
-
1978
- 1978-03-31 JP JP3864878A patent/JPS54130801A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008136220A (en) * | 2004-04-14 | 2008-06-12 | Maspro Denkoh Corp | Shield case |
JP4669505B2 (en) * | 2004-04-14 | 2011-04-13 | マスプロ電工株式会社 | Shield case |
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