JPS5612552A - Method for detecting crack - Google Patents
Method for detecting crackInfo
- Publication number
- JPS5612552A JPS5612552A JP8742079A JP8742079A JPS5612552A JP S5612552 A JPS5612552 A JP S5612552A JP 8742079 A JP8742079 A JP 8742079A JP 8742079 A JP8742079 A JP 8742079A JP S5612552 A JPS5612552 A JP S5612552A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- crack
- sensor
- wiped
- vapor
- 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
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To detect the presence of a crack by a method wherein after a liquid with a good wetting nature, low viscosity and high volatility is applied to the surface of a test body, it is wiped off dried, and the body surface is scanned by a sensor that sences vapor of the applied liquid.
CONSTITUTION: The liquid 2 such as water is applied to the surface of the body 1 to soak itself in the crack of the body 1. Next the liquid on the body surface is wiped off and the surface is dried. Time required for evaporation of the liquid 2 that soaked in the crack is longer than that of the liquid left on the surface of the body. Accordingly since the liquid is left in the crack 3, a temperature sensor can be used to scan the surface of the body 1 when the liquid is water, and the presence of a crack can be detected by detecting the vapor, which flows out from the crack, by means of the sensor 4.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8742079A JPS5612552A (en) | 1979-07-12 | 1979-07-12 | Method for detecting crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8742079A JPS5612552A (en) | 1979-07-12 | 1979-07-12 | Method for detecting crack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5612552A true JPS5612552A (en) | 1981-02-06 |
Family
ID=13914378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8742079A Pending JPS5612552A (en) | 1979-07-12 | 1979-07-12 | Method for detecting crack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5612552A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7963015B2 (en) | 2003-07-07 | 2011-06-21 | National Maritime Research Institute | Method of suppressing extension of fatigue crack, method of detecting fatigue crack and paste used for the methods |
| CN104259105A (en) * | 2014-07-24 | 2015-01-07 | 肇庆爱晟电子科技有限公司 | Method for screening microcrack temperature-sensitive chips |
| CN104849281A (en) * | 2015-05-22 | 2015-08-19 | 厦门大学 | Method for detecting quantity and positions of cracks on surface of material |
-
1979
- 1979-07-12 JP JP8742079A patent/JPS5612552A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7963015B2 (en) | 2003-07-07 | 2011-06-21 | National Maritime Research Institute | Method of suppressing extension of fatigue crack, method of detecting fatigue crack and paste used for the methods |
| CN104259105A (en) * | 2014-07-24 | 2015-01-07 | 肇庆爱晟电子科技有限公司 | Method for screening microcrack temperature-sensitive chips |
| CN104849281A (en) * | 2015-05-22 | 2015-08-19 | 厦门大学 | Method for detecting quantity and positions of cracks on surface of material |
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