JPS51133073A - Seam detecting method by overcurrent method - Google Patents
Seam detecting method by overcurrent methodInfo
- Publication number
- JPS51133073A JPS51133073A JP5778175A JP5778175A JPS51133073A JP S51133073 A JPS51133073 A JP S51133073A JP 5778175 A JP5778175 A JP 5778175A JP 5778175 A JP5778175 A JP 5778175A JP S51133073 A JPS51133073 A JP S51133073A
- Authority
- JP
- Japan
- Prior art keywords
- overcurrent
- seam detecting
- seam
- detecting method
- metal
- 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
Abstract
PURPOSE: It is a purpose of the invention to provide a seam detecting method whereby overcurrent is allowed to be generated at right angle against the metal surface, thus permitting detection of seams without being influenced by metal-end roundnesses at the seam part of the metal board.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5778175A JPS51133073A (en) | 1975-05-15 | 1975-05-15 | Seam detecting method by overcurrent method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5778175A JPS51133073A (en) | 1975-05-15 | 1975-05-15 | Seam detecting method by overcurrent method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS51133073A true JPS51133073A (en) | 1976-11-18 |
Family
ID=13065406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5778175A Pending JPS51133073A (en) | 1975-05-15 | 1975-05-15 | Seam detecting method by overcurrent method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51133073A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01148957A (en) * | 1987-12-07 | 1989-06-12 | Matsushita Electric Ind Co Ltd | Seam detecting apparatus for metal can |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3247453A (en) * | 1961-03-09 | 1966-04-19 | Api Instr Company | Magnetic flaw detector with exciting and sensing coils axially aligned on opposite sides of the material |
-
1975
- 1975-05-15 JP JP5778175A patent/JPS51133073A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3247453A (en) * | 1961-03-09 | 1966-04-19 | Api Instr Company | Magnetic flaw detector with exciting and sensing coils axially aligned on opposite sides of the material |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01148957A (en) * | 1987-12-07 | 1989-06-12 | Matsushita Electric Ind Co Ltd | Seam detecting apparatus for metal can |
JPH0442626B2 (en) * | 1987-12-07 | 1992-07-14 | Matsushita Denki Sangyo Kk |
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