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.)
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IHI Corp
Original Assignee
IHI Corp
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Filing date
Publication date
Application filed by IHI CorpfiledCriticalIHI Corp
Priority to JP5984775ApriorityCriticalpatent/JPS51135587A/en
Publication of JPS51135587ApublicationCriticalpatent/JPS51135587A/en
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications
(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
JP5984775A1975-05-201975-05-20Surface defect detection method and equipment
PendingJPS51135587A
(en)