JPS6142221B2 - - Google Patents
Info
- Publication number
- JPS6142221B2 JPS6142221B2 JP52142515A JP14251577A JPS6142221B2 JP S6142221 B2 JPS6142221 B2 JP S6142221B2 JP 52142515 A JP52142515 A JP 52142515A JP 14251577 A JP14251577 A JP 14251577A JP S6142221 B2 JPS6142221 B2 JP S6142221B2
- Authority
- JP
- Japan
- Prior art keywords
- defect
- defects
- steel plate
- light
- inspection
- 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 141
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 238000007689 inspection Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 29
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000001228 spectrum Methods 0.000 claims description 14
- 238000003384 imaging method Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001427 coherent effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 31
- 238000005096 rolling process Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 6
- 238000011179 visual inspection Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 241000237502 Ostreidae Species 0.000 description 3
- 235000020636 oyster Nutrition 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14251577A JPS5474792A (en) | 1977-11-28 | 1977-11-28 | Surface defect inspection method of steel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14251577A JPS5474792A (en) | 1977-11-28 | 1977-11-28 | Surface defect inspection method of steel plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5474792A JPS5474792A (en) | 1979-06-15 |
| JPS6142221B2 true JPS6142221B2 (US20090177143A1-20090709-C00008.png) | 1986-09-19 |
Family
ID=15317140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14251577A Granted JPS5474792A (en) | 1977-11-28 | 1977-11-28 | Surface defect inspection method of steel plates |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5474792A (US20090177143A1-20090709-C00008.png) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6314020U (US20090177143A1-20090709-C00008.png) * | 1986-07-14 | 1988-01-29 | ||
| JPS6314021U (US20090177143A1-20090709-C00008.png) * | 1986-07-14 | 1988-01-29 | ||
| JPS6314019U (US20090177143A1-20090709-C00008.png) * | 1986-07-14 | 1988-01-29 | ||
| WO2024161619A1 (ja) * | 2023-02-03 | 2024-08-08 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | 疵検出装置、圧延装置、疵検出方法及び圧延方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5754844A (en) * | 1980-09-19 | 1982-04-01 | Nippon Steel Corp | Flaw signal processing apparatus |
| EP0572336B1 (en) * | 1992-05-29 | 2001-03-14 | Eastman Kodak Company | Coating density analyzer and method using image processing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059081A (US20090177143A1-20090709-C00008.png) * | 1973-09-26 | 1975-05-22 | ||
| JPS5080885A (US20090177143A1-20090709-C00008.png) * | 1973-11-15 | 1975-07-01 | ||
| US3944978A (en) * | 1974-09-09 | 1976-03-16 | Recognition Systems, Inc. | Electro-optical method and apparatus for making identifications |
| JPS51145387A (en) * | 1975-06-10 | 1976-12-14 | Toshiba Corp | Fault detecting device |
| JPS5292579A (en) * | 1976-01-28 | 1977-08-04 | Toyo Boseki | Method of discriminating defects of sheet |
-
1977
- 1977-11-28 JP JP14251577A patent/JPS5474792A/ja active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059081A (US20090177143A1-20090709-C00008.png) * | 1973-09-26 | 1975-05-22 | ||
| JPS5080885A (US20090177143A1-20090709-C00008.png) * | 1973-11-15 | 1975-07-01 | ||
| US3944978A (en) * | 1974-09-09 | 1976-03-16 | Recognition Systems, Inc. | Electro-optical method and apparatus for making identifications |
| JPS51145387A (en) * | 1975-06-10 | 1976-12-14 | Toshiba Corp | Fault detecting device |
| JPS5292579A (en) * | 1976-01-28 | 1977-08-04 | Toyo Boseki | Method of discriminating defects of sheet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6314020U (US20090177143A1-20090709-C00008.png) * | 1986-07-14 | 1988-01-29 | ||
| JPS6314021U (US20090177143A1-20090709-C00008.png) * | 1986-07-14 | 1988-01-29 | ||
| JPS6314019U (US20090177143A1-20090709-C00008.png) * | 1986-07-14 | 1988-01-29 | ||
| WO2024161619A1 (ja) * | 2023-02-03 | 2024-08-08 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | 疵検出装置、圧延装置、疵検出方法及び圧延方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5474792A (en) | 1979-06-15 |
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