JPS6140064B2 - - Google Patents
Info
- Publication number
- JPS6140064B2 JPS6140064B2 JP4617678A JP4617678A JPS6140064B2 JP S6140064 B2 JPS6140064 B2 JP S6140064B2 JP 4617678 A JP4617678 A JP 4617678A JP 4617678 A JP4617678 A JP 4617678A JP S6140064 B2 JPS6140064 B2 JP S6140064B2
- Authority
- JP
- Japan
- Prior art keywords
- marking
- defect
- round bar
- nozzle
- signal
- 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.)
- Expired
Links
- 230000007547 defect Effects 0.000 claims description 53
- 238000001514 detection method Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000003973 paint Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4617678A JPS54137390A (en) | 1978-04-18 | 1978-04-18 | Method of marking surface defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4617678A JPS54137390A (en) | 1978-04-18 | 1978-04-18 | Method of marking surface defects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54137390A JPS54137390A (en) | 1979-10-25 |
| JPS6140064B2 true JPS6140064B2 (en]) | 1986-09-06 |
Family
ID=12739710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4617678A Granted JPS54137390A (en) | 1978-04-18 | 1978-04-18 | Method of marking surface defects |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54137390A (en]) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6313768U (en]) * | 1986-07-11 | 1988-01-29 | ||
| JPS6318276U (en]) * | 1986-07-23 | 1988-02-06 | ||
| JPH01100558U (en]) * | 1987-12-24 | 1989-07-06 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03160362A (ja) * | 1989-11-17 | 1991-07-10 | Jgc Corp | 超音波探傷法 |
-
1978
- 1978-04-18 JP JP4617678A patent/JPS54137390A/ja active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6313768U (en]) * | 1986-07-11 | 1988-01-29 | ||
| JPS6318276U (en]) * | 1986-07-23 | 1988-02-06 | ||
| JPH01100558U (en]) * | 1987-12-24 | 1989-07-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54137390A (en) | 1979-10-25 |
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