JPS6248190B2 - - Google Patents
Info
- Publication number
- JPS6248190B2 JPS6248190B2 JP19713181A JP19713181A JPS6248190B2 JP S6248190 B2 JPS6248190 B2 JP S6248190B2 JP 19713181 A JP19713181 A JP 19713181A JP 19713181 A JP19713181 A JP 19713181A JP S6248190 B2 JPS6248190 B2 JP S6248190B2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- magnetic tape
- reel
- hole surface
- flaw 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.)
- Expired
Links
- 230000005291 magnetic effect Effects 0.000 claims description 70
- 238000001514 detection method Methods 0.000 claims description 25
- 239000004020 conductor Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000002950 deficient Effects 0.000 description 12
- 230000004907 flux Effects 0.000 description 12
- 230000007547 defect Effects 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19713181A JPS5897653A (ja) | 1981-12-08 | 1981-12-08 | 内孔面探傷用の漏洩磁気探傷装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19713181A JPS5897653A (ja) | 1981-12-08 | 1981-12-08 | 内孔面探傷用の漏洩磁気探傷装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5897653A JPS5897653A (ja) | 1983-06-10 |
JPS6248190B2 true JPS6248190B2 (ko) | 1987-10-13 |
Family
ID=16369258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19713181A Granted JPS5897653A (ja) | 1981-12-08 | 1981-12-08 | 内孔面探傷用の漏洩磁気探傷装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5897653A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH023190U (ko) * | 1988-06-20 | 1990-01-10 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0833373B2 (ja) * | 1987-09-10 | 1996-03-29 | 株式会社日立製作所 | 自動磁気探傷装置 |
JP2592690B2 (ja) * | 1989-11-09 | 1997-03-19 | 東京瓦斯株式会社 | 管内面渦流探傷装置 |
CN110017430A (zh) * | 2019-04-12 | 2019-07-16 | 中国石油化工股份有限公司 | 一种基于弱磁的海底管道双通道定点损伤监控系统 |
-
1981
- 1981-12-08 JP JP19713181A patent/JPS5897653A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH023190U (ko) * | 1988-06-20 | 1990-01-10 |
Also Published As
Publication number | Publication date |
---|---|
JPS5897653A (ja) | 1983-06-10 |
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