JPS55149737A - Working method of tubular body for heat exchanger - Google Patents

Working method of tubular body for heat exchanger

Info

Publication number
JPS55149737A
JPS55149737A JP5645979A JP5645979A JPS55149737A JP S55149737 A JPS55149737 A JP S55149737A JP 5645979 A JP5645979 A JP 5645979A JP 5645979 A JP5645979 A JP 5645979A JP S55149737 A JPS55149737 A JP S55149737A
Authority
JP
Japan
Prior art keywords
pipe
plug
fitted
steel pipe
flights
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.)
Granted
Application number
JP5645979A
Other languages
Japanese (ja)
Other versions
JPS6154495B2 (en
Inventor
Yuichi Tajima
Yutaka Saito
Fumio Misumi
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.)
RIYOUSHIN SEIKAN KK
Original Assignee
RIYOUSHIN SEIKAN KK
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 RIYOUSHIN SEIKAN KK filed Critical RIYOUSHIN SEIKAN KK
Priority to JP5645979A priority Critical patent/JPS55149737A/en
Publication of JPS55149737A publication Critical patent/JPS55149737A/en
Publication of JPS6154495B2 publication Critical patent/JPS6154495B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Metal Extraction Processes (AREA)

Abstract

PURPOSE: To permit easy working of tubular bodies and improve heat exchangeability by engraving plural lengths of grooves in the inside wall surface of the tubular bodies for heat exchangers simultaneously with their expanding.
CONSTITUTION: A tubular body 1 for heat exchanging is passed through the inside of the holes 8 formed in multiple fins 2 of flat plate form. A plug 4 of a diameter slightly larger than the inside diameter of the steel pipe 1 is force-fitted into the pipe 1. The plug 4 is convergent and the portion near the maximum diameter assumres a curved surface, on the outside circumferential part whereof are formed multiple protruding flights 5. There is a through-hole 6 along the central axial line and a shaft 7 is inserted into this hole. This shaft 7 is rotatable by way of a nut 9 and bearing 8. As a result of this, if the plug 4 is press-fitted into the pipe, the pipe is expanded, at the same instant of which multiple lengths of grooves 10 are engraved by the protruding flights 5 in the internal surface of the pipe. As the steel pipe 1 is expanded further, the steel pipe 1 is press-fitted into the holes 8 formed to the fins 2.
COPYRIGHT: (C)1980,JPO&Japio
JP5645979A 1979-05-09 1979-05-09 Working method of tubular body for heat exchanger Granted JPS55149737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5645979A JPS55149737A (en) 1979-05-09 1979-05-09 Working method of tubular body for heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5645979A JPS55149737A (en) 1979-05-09 1979-05-09 Working method of tubular body for heat exchanger

Publications (2)

Publication Number Publication Date
JPS55149737A true JPS55149737A (en) 1980-11-21
JPS6154495B2 JPS6154495B2 (en) 1986-11-22

Family

ID=13027676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5645979A Granted JPS55149737A (en) 1979-05-09 1979-05-09 Working method of tubular body for heat exchanger

Country Status (1)

Country Link
JP (1) JPS55149737A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646548A (en) * 1982-09-29 1987-03-03 Carrier Corporation Tube expanding and grooving tool and method
US4706355A (en) * 1984-12-11 1987-11-17 Q-Dot Corporation Method of making an internally grooved and expanded tubular heat exchanger apparatus
JPS6483326A (en) * 1987-09-24 1989-03-29 Showa Aluminum Corp Pipe expanding device for pipe having internal spiral groove
DE4119841A1 (en) * 1990-06-19 1992-01-16 Vaillant Joh Gmbh & Co Plate-type heat-exchanger - has collars round plate opening with spigots at free ends
US5189900A (en) * 1991-03-06 1993-03-02 Mccord Heat Transfer Corporation Apparatus for connecting a coolant tube and header of a heat exchanger
US5381600A (en) * 1993-10-06 1995-01-17 Ford Motor Company Heat exchanger and method of making the same
US5564184A (en) * 1994-02-02 1996-10-15 Heat Pipe Technology, Inc. Method for making heat pipes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058074Y2 (en) * 1986-02-28 1993-03-01

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646548A (en) * 1982-09-29 1987-03-03 Carrier Corporation Tube expanding and grooving tool and method
US4706355A (en) * 1984-12-11 1987-11-17 Q-Dot Corporation Method of making an internally grooved and expanded tubular heat exchanger apparatus
JPS6483326A (en) * 1987-09-24 1989-03-29 Showa Aluminum Corp Pipe expanding device for pipe having internal spiral groove
DE4119841A1 (en) * 1990-06-19 1992-01-16 Vaillant Joh Gmbh & Co Plate-type heat-exchanger - has collars round plate opening with spigots at free ends
US5189900A (en) * 1991-03-06 1993-03-02 Mccord Heat Transfer Corporation Apparatus for connecting a coolant tube and header of a heat exchanger
US5381600A (en) * 1993-10-06 1995-01-17 Ford Motor Company Heat exchanger and method of making the same
US5404942A (en) * 1993-10-06 1995-04-11 Ford Motor Company Heat exchanger and method of making the same
US5564184A (en) * 1994-02-02 1996-10-15 Heat Pipe Technology, Inc. Method for making heat pipes

Also Published As

Publication number Publication date
JPS6154495B2 (en) 1986-11-22

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