JPS51133073A - Seam detecting method by overcurrent method - Google Patents

Seam detecting method by overcurrent method

Info

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
Application number
JP5778175A
Other languages
Japanese (ja)
Inventor
Koji Enami
Yasuo Araki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP5778175A priority Critical patent/JPS51133073A/en
Publication of JPS51133073A publication Critical patent/JPS51133073A/en
Pending legal-status Critical Current

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
JP5778175A 1975-05-15 1975-05-15 Seam detecting method by overcurrent method Pending JPS51133073A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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