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 JP1106977ApriorityCriticalpatent/JPS5395866A/en
Publication of JPS5395866ApublicationCriticalpatent/JPS5395866A/en
Publication of JPS5742425B2publicationCriticalpatent/JPS5742425B2/ja
PURPOSE: To widely decrease the defect of weld, by detecting C value of welding bead part and comparing containing quantity with that of C value of mother material part and then, controlling welding heat input.
COPYRIGHT: (C)1978,JPO&Japio
JP1106977A1977-02-031977-02-03Welding method of electroseamed tube
GrantedJPS5395866A
(en)