JPS5642121A - Testing method for hole of hollow body - Google Patents
Testing method for hole of hollow bodyInfo
- Publication number
- JPS5642121A JPS5642121A JP11831179A JP11831179A JPS5642121A JP S5642121 A JPS5642121 A JP S5642121A JP 11831179 A JP11831179 A JP 11831179A JP 11831179 A JP11831179 A JP 11831179A JP S5642121 A JPS5642121 A JP S5642121A
- Authority
- JP
- Japan
- Prior art keywords
- hollow body
- liquid
- pin holes
- valve
- compressed gas
- 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
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE: To test the presence of pin holes on the hollow body easily and precisely by a method wherein the hollow body is immersed in a liquid after being treated with compressed gas in a closed liquid container.
CONSTITUTION: The liquid W is filled in the liquid tank to a desired height, and the hollow body S to be tested is supported on a support 2. At first, on-off valves 15 and 16 are operated so as to close pipes 13 and 14, then a cover 10 is removed, the hollow body S is supported on the support 12 located in air above the liquid surface, and the cover 10 is fitted. Then the valve 15 is opened and the compressed gas is introduced into the tank 1. The valve 15 is closed again, a strut 3 is lowered so as to immerse the hollow body S in the liquid, and the valve 16 is opened to release the compressed gas. In this case, if the hollow body S has any pin holes, the gas is driven into the pin holes at the time of compression operation and thereafter it is released as bubbles into the liquid W at the time of decompression. Accordingly, the presence of the pin holes is clearly detected.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11831179A JPS5642121A (en) | 1979-09-15 | 1979-09-15 | Testing method for hole of hollow body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11831179A JPS5642121A (en) | 1979-09-15 | 1979-09-15 | Testing method for hole of hollow body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642121A true JPS5642121A (en) | 1981-04-20 |
Family
ID=14733529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11831179A Pending JPS5642121A (en) | 1979-09-15 | 1979-09-15 | Testing method for hole of hollow body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642121A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004245752A (en) * | 2003-02-17 | 2004-09-02 | Murata Mfg Co Ltd | Method and apparatus for sealing test |
-
1979
- 1979-09-15 JP JP11831179A patent/JPS5642121A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004245752A (en) * | 2003-02-17 | 2004-09-02 | Murata Mfg Co Ltd | Method and apparatus for sealing test |
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