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.)
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel CorpfiledCriticalNippon Steel Corp
Priority to JP5504175ApriorityCriticalpatent/JPS51130285A/en
Publication of JPS51130285ApublicationCriticalpatent/JPS51130285A/en
Publication of JPS5725065B2publicationCriticalpatent/JPS5725065B2/ja
Investigating Or Analyzing Materials Using Thermal Means
(AREA)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications
(AREA)
Abstract
PURPOSE: After attaching secondary scale uniformly and firmly to steel surface, visible light generated by the steel is measured so that surface scratch can be detected without any special tool.
COPYRIGHT: (C)1976,JPO&Japio
JP5504175A1975-05-071975-05-07Detecting method of surface scratch on hot steel
GrantedJPS51130285A
(en)