JPS51135587A - Surface defect detection method and equipment - Google Patents

Surface defect detection method and equipment

Info

Publication number
JPS51135587A
JPS51135587A JP5984775A JP5984775A JPS51135587A JP S51135587 A JPS51135587 A JP S51135587A JP 5984775 A JP5984775 A JP 5984775A JP 5984775 A JP5984775 A JP 5984775A JP S51135587 A JPS51135587 A JP S51135587A
Authority
JP
Japan
Prior art keywords
equipment
detection method
defect detection
surface defect
oxidized film
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
JP5984775A
Other languages
Japanese (ja)
Inventor
Masaaki Tarui
Kanji Kizaki
Hiroyuki Shiozaki
Isao Takahashi
Takeshi Nara
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co 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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP5984775A priority Critical patent/JPS51135587A/en
Publication of JPS51135587A publication Critical patent/JPS51135587A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE: Remove an oxidized film attached to metal surfaces in hot processing and prevent the generation of oxidized film with inert gas or other substance to optically detect the difference in brightness on metal face and indicate defects on metal faces without being affected by the oxidized film.
COPYRIGHT: (C)1976,JPO&Japio
JP5984775A 1975-05-20 1975-05-20 Surface defect detection method and equipment Pending JPS51135587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5984775A JPS51135587A (en) 1975-05-20 1975-05-20 Surface defect detection method and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5984775A JPS51135587A (en) 1975-05-20 1975-05-20 Surface defect detection method and equipment

Publications (1)

Publication Number Publication Date
JPS51135587A true JPS51135587A (en) 1976-11-24

Family

ID=13124995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5984775A Pending JPS51135587A (en) 1975-05-20 1975-05-20 Surface defect detection method and equipment

Country Status (1)

Country Link
JP (1) JPS51135587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145220U (en) * 1978-03-29 1979-10-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145220U (en) * 1978-03-29 1979-10-08

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