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.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
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Filing date
Publication date
Application filed by Babcock Hitachi KKfiledCriticalBabcock Hitachi KK
Priority to JP1080077ApriorityCriticalpatent/JPS5396961A/en
Publication of JPS5396961ApublicationCriticalpatent/JPS5396961A/en
PURPOSE: To make it possible to simply prevent the deformation of the tube hole, by inserting a deformation preventive jig into the tube hole located within the nearest tube pitch around the tube hole which is to be expanded, when the heat exchanger tube is fixed to the exchanger's tubesheet applying the explosive tube-expanding method.