JPS5639460A - Supersonic flaw detection method for welded portion of pipe - Google Patents
Supersonic flaw detection method for welded portion of pipeInfo
- Publication number
- JPS5639460A JPS5639460A JP11479679A JP11479679A JPS5639460A JP S5639460 A JPS5639460 A JP S5639460A JP 11479679 A JP11479679 A JP 11479679A JP 11479679 A JP11479679 A JP 11479679A JP S5639460 A JPS5639460 A JP S5639460A
- Authority
- JP
- Japan
- Prior art keywords
- seam
- flaw detection
- detector
- pipe
- detection
- 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 Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To enable accurate supersonic flaw detection without the use of numerous probing units by controlling the lock position by means of supersonic flaw detection on the basis of seam position detection signals of the electrically seamed pipe through the seam detector which moves along the circumferential direction.
CONSTITUTION: Seam detector 5 makes reciprocal movement in the circumferentialdirection of electrically seamed pipe 3 through the motor 16, etc., starts up the counting at the expected seam section and detects the position error signal of the seam 4 through the counter, etc. which stops counting at the time of seam detection by means of the detector 5. When the revolution of the motor 11 is controlled on the basis of this signal, the position of the flaw detection block 2 is automatically adjusted and the probing unit is made to face the seam. Thus, it is possible to conduct accurate flaw detection by means of a set of probe unit without providing numerous probes by predicting displacement.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11479679A JPS5639460A (en) | 1979-09-07 | 1979-09-07 | Supersonic flaw detection method for welded portion of pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11479679A JPS5639460A (en) | 1979-09-07 | 1979-09-07 | Supersonic flaw detection method for welded portion of pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5639460A true JPS5639460A (en) | 1981-04-15 |
Family
ID=14646895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11479679A Pending JPS5639460A (en) | 1979-09-07 | 1979-09-07 | Supersonic flaw detection method for welded portion of pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639460A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6165157A (en) * | 1984-09-07 | 1986-04-03 | Furukawa Electric Co Ltd:The | Detection of defect of metallic pipe |
US5454267A (en) * | 1990-12-21 | 1995-10-03 | Framatome | Multi-element ultrasonic probe for electronic scanning |
-
1979
- 1979-09-07 JP JP11479679A patent/JPS5639460A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6165157A (en) * | 1984-09-07 | 1986-04-03 | Furukawa Electric Co Ltd:The | Detection of defect of metallic pipe |
US5454267A (en) * | 1990-12-21 | 1995-10-03 | Framatome | Multi-element ultrasonic probe for electronic scanning |
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