JPS55149737A - Working method of tubular body for heat exchanger - Google Patents
Working method of tubular body for heat exchangerInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH058074Y2 (en) * | 1986-02-28 | 1993-03-01 |
-
1979
- 1979-05-09 JP JP5645979A patent/JPS55149737A/en active Granted
Cited By (8)
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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