JPS5483672A - Expander for pipe-flare of heat-exchanger - Google Patents

Expander for pipe-flare of heat-exchanger

Info

Publication number
JPS5483672A
JPS5483672A JP15053377A JP15053377A JPS5483672A JP S5483672 A JPS5483672 A JP S5483672A JP 15053377 A JP15053377 A JP 15053377A JP 15053377 A JP15053377 A JP 15053377A JP S5483672 A JPS5483672 A JP S5483672A
Authority
JP
Japan
Prior art keywords
pipe
expander
pin
flare
forming
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
JP15053377A
Other languages
Japanese (ja)
Inventor
Tadaaki Ayabe
Shigeo Kimoto
Katsuji Uehara
Takahiko Deguchi
Masahiro Miyagi
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 Ltd filed Critical Hitachi Ltd
Priority to JP15053377A priority Critical patent/JPS5483672A/en
Publication of JPS5483672A publication Critical patent/JPS5483672A/en
Pending legal-status Critical Current

Links

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  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

PURPOSE: The titled pipe expander which need not rotate the flare forming jig usual usually rotated in the conventional expander, by installing the first and second expanders for simultaneously performing many of flare-expanding-works at the pipe ends, while both ends of the straight pipe are being clamped.
CONSTITUTION: Both ends of the pipe 1 are clamped by the clamp 7, and the first expander ram 8 is moved from both ends so as to push forward the first expansion forming pin 9 into both ends of the pipe 1 for performing the first forming work; after that, the first forming pin 9 is stopped at the end point of the push-forward action. Next, the second expansion forming pin 11 is pushed forward by the second expander ram 10. Hereupon, many of flares at the joint portions of U-pipe are simultaneously formed at both ends of the pipe 1 as illustrated, while the slip-out buckling is being prevented by the construction in which the pin 9 is inserted as the guide bar into the internal hole of the pin 11.
COPYRIGHT: (C)1979,JPO&Japio
JP15053377A 1977-12-16 1977-12-16 Expander for pipe-flare of heat-exchanger Pending JPS5483672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15053377A JPS5483672A (en) 1977-12-16 1977-12-16 Expander for pipe-flare of heat-exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15053377A JPS5483672A (en) 1977-12-16 1977-12-16 Expander for pipe-flare of heat-exchanger

Publications (1)

Publication Number Publication Date
JPS5483672A true JPS5483672A (en) 1979-07-03

Family

ID=15498938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15053377A Pending JPS5483672A (en) 1977-12-16 1977-12-16 Expander for pipe-flare of heat-exchanger

Country Status (1)

Country Link
JP (1) JPS5483672A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756122A (en) * 1980-09-22 1982-04-03 Toshiba Corp Pipe expanding method for heat exchanger
JPS59180295A (en) * 1983-03-30 1984-10-13 Nippon Denso Co Ltd Heat exchanger and its manufacturing method
JPH0584441U (en) * 1991-06-21 1993-11-16 京進工業株式会社 Tube expansion device
CN104289612A (en) * 2014-09-26 2015-01-21 中山市奥美森工业有限公司 Expansion rod selecting device for pipe expander
CN104647796A (en) * 2013-11-25 2015-05-27 珠海格力电器股份有限公司 Pipe expander, base thereof and straight pipe flaring method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527435A (en) * 1975-06-24 1977-01-20 Oshio Sangyo Kk Method for preventing obstacles caused by microorganisms in industrial materials and other goods
JPS5234839B2 (en) * 1972-08-04 1977-09-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234839B2 (en) * 1972-08-04 1977-09-06
JPS527435A (en) * 1975-06-24 1977-01-20 Oshio Sangyo Kk Method for preventing obstacles caused by microorganisms in industrial materials and other goods

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756122A (en) * 1980-09-22 1982-04-03 Toshiba Corp Pipe expanding method for heat exchanger
JPS59180295A (en) * 1983-03-30 1984-10-13 Nippon Denso Co Ltd Heat exchanger and its manufacturing method
JPH0584441U (en) * 1991-06-21 1993-11-16 京進工業株式会社 Tube expansion device
CN104647796A (en) * 2013-11-25 2015-05-27 珠海格力电器股份有限公司 Pipe expander, base thereof and straight pipe flaring method
CN104647796B (en) * 2013-11-25 2017-07-28 珠海格力电器股份有限公司 Electric tube expander and its base, straight tube flared method
CN104289612A (en) * 2014-09-26 2015-01-21 中山市奥美森工业有限公司 Expansion rod selecting device for pipe expander

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