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JPS5413455A - Uniformly expanding device for tube - Google Patents

Uniformly expanding device for tube

Info

Publication number
JPS5413455A
JPS5413455AJP7786277AJP7786277AJPS5413455AJP S5413455 AJPS5413455 AJP S5413455AJP 7786277 AJP7786277 AJP 7786277AJP 7786277 AJP7786277 AJP 7786277AJP S5413455 AJPS5413455 AJP S5413455A
Authority
JP
Japan
Prior art keywords
tube
seal ring
tube plate
expanding device
weld zone
Prior art date
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.)
Pending
Application number
JP7786277A
Other languages
Japanese (ja)
Inventor
Hideaki Kanbara
Fujitsugu Nakatsui
Keiji Omura
Yuji Yoshitomi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP7786277ApriorityCriticalpatent/JPS5413455A/en
Publication of JPS5413455ApublicationCriticalpatent/JPS5413455A/en
Pendinglegal-statusCriticalCurrent

Links

Landscapes

Abstract

PURPOSE: To make possible the titled device to completely expand even the weld zone at the pipe end, by making the portion of seal ring, contacting with the weld zone between the tube plate and the end of the heat exchanger tube, into a stepped construction whose diameter is smaller than the outer diameter of the seal ring, by protruding the noncontact portion of the seal ring with the expanding medium into outside of the tube plate, and by holding the protruberant portion on the tube plate using the holding device.
COPYRIGHT: (C)1979,JPO&Japio
JP7786277A1977-07-011977-07-01Uniformly expanding device for tubePendingJPS5413455A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP7786277AJPS5413455A (en)1977-07-011977-07-01Uniformly expanding device for tube

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP7786277AJPS5413455A (en)1977-07-011977-07-01Uniformly expanding device for tube

Publications (1)

Publication NumberPublication Date
JPS5413455Atrue JPS5413455A (en)1979-01-31

Family

ID=13645857

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP7786277APendingJPS5413455A (en)1977-07-011977-07-01Uniformly expanding device for tube

Country Status (1)

CountryLink
JP (1)JPS5413455A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5858175A (en)*1981-10-021983-04-06Tamai Tekko:KkApplying system
JPH04222676A (en)*1990-03-151992-08-12Sl Electrostatic Technol IncMethod for steam washing of layered part
US6392257B1 (en)2000-02-102002-05-21Motorola Inc.Semiconductor structure, semiconductor device, communicating device, integrated circuit, and process for fabricating the same
US7046719B2 (en)2001-03-082006-05-16Motorola, Inc.Soft handoff between cellular systems employing different encoding rates
CN100379505C (en)*2005-02-172008-04-09徐惠群Heat pipe sealing method and structure without shrinkage pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5858175A (en)*1981-10-021983-04-06Tamai Tekko:KkApplying system
JPH04222676A (en)*1990-03-151992-08-12Sl Electrostatic Technol IncMethod for steam washing of layered part
US6392257B1 (en)2000-02-102002-05-21Motorola Inc.Semiconductor structure, semiconductor device, communicating device, integrated circuit, and process for fabricating the same
US7046719B2 (en)2001-03-082006-05-16Motorola, Inc.Soft handoff between cellular systems employing different encoding rates
CN100379505C (en)*2005-02-172008-04-09徐惠群Heat pipe sealing method and structure without shrinkage pipe

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