JPS5770455A - Detection of end face corrosion of pipe - Google Patents
Detection of end face corrosion of pipeInfo
- Publication number
- JPS5770455A JPS5770455A JP55147369A JP14736980A JPS5770455A JP S5770455 A JPS5770455 A JP S5770455A JP 55147369 A JP55147369 A JP 55147369A JP 14736980 A JP14736980 A JP 14736980A JP S5770455 A JPS5770455 A JP S5770455A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- face
- ultrasonic waves
- probe
- coupling
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0258—Structural degradation, e.g. fatigue of composites, ageing of oils
Abstract
PURPOSE:To carry out inspection of end face corrosion of high accuracy easily and quickly in the outside part of a pipe connecting part by scanning ultrasonic waves in the wall thickness of the pipe in averting the air gap part of a cylindrical coupling and the pipe. CONSTITUTION:In the connecting part of pipes, the probes 7, 8 for projection and reception of ultrasonic waves of a submersible ultrasonic flaw detector 6 are moved with the outside surface of a flange 1 in the state orthogonal with the axial center of a pipe 3 as a guide, on the side opposite from a coupling 4. The angle theta of projection is so set that the ultrasonic waves from the probe 7 are projected to near the center in the thickness direction of the end face of the pipe and the ultrasonic waves reflected from the end face are received by the probe 8 near the projection point. In accordance with the time lag when the ultrasonic waves projected from the probe 7 are reflected by the end face of the pipe and are received in the probe 8, the end face corrosion of the pipe 3 inserted into the coupling 1 is inspected in the outside part of the pipe connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55147369A JPS5770455A (en) | 1980-10-20 | 1980-10-20 | Detection of end face corrosion of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55147369A JPS5770455A (en) | 1980-10-20 | 1980-10-20 | Detection of end face corrosion of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5770455A true JPS5770455A (en) | 1982-04-30 |
Family
ID=15428661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55147369A Pending JPS5770455A (en) | 1980-10-20 | 1980-10-20 | Detection of end face corrosion of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5770455A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6622561B2 (en) * | 2001-08-14 | 2003-09-23 | Varco I/P, Inc. | Tubular member flaw detection |
| KR100400681B1 (en) * | 2000-03-29 | 2003-10-08 | 주식회사 에스알에스텍 | Heat Exchanger Life Assessment System(HELAS) |
| US6748808B2 (en) | 2001-08-14 | 2004-06-15 | Varco I/P, Inc. | Flaw detection in tubular members |
-
1980
- 1980-10-20 JP JP55147369A patent/JPS5770455A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100400681B1 (en) * | 2000-03-29 | 2003-10-08 | 주식회사 에스알에스텍 | Heat Exchanger Life Assessment System(HELAS) |
| US6622561B2 (en) * | 2001-08-14 | 2003-09-23 | Varco I/P, Inc. | Tubular member flaw detection |
| US6748808B2 (en) | 2001-08-14 | 2004-06-15 | Varco I/P, Inc. | Flaw detection in tubular members |
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