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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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP3260376ApriorityCriticalpatent/JPS52115959A/en
Publication of JPS52115959ApublicationCriticalpatent/JPS52115959A/en
PURPOSE: To ensure clamping without deteriorating a bolt base material, by heating and expanding a sleeve inserted into a bolt inner hole to evenly transmit heat to a bolt, in the heating connecting work of a large-diameter bolt used for large scale structure connecting.
COPYRIGHT: (C)1977,JPO&Japio
JP3260376A1976-03-261976-03-26Connecting method for bolt
PendingJPS52115959A
(en)