JPS55109527A - Hydraulic pipe expander - Google Patents
Hydraulic pipe expanderInfo
- Publication number
- JPS55109527A JPS55109527A JP1635079A JP1635079A JPS55109527A JP S55109527 A JPS55109527 A JP S55109527A JP 1635079 A JP1635079 A JP 1635079A JP 1635079 A JP1635079 A JP 1635079A JP S55109527 A JPS55109527 A JP S55109527A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pipe
- rod
- expanded
- hydraulic pressure
- 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
Links
Abstract
PURPOSE: To efficiently expand the pipe, without causing the pollution with the hydraulic medium, etc., by inserting the flexible tube into the pipe to be expanded, and by impressing the hydraulic pressure on the inside of the flexible tube.
CONSTITUTION: The flexible tube 2 like as the rubber tube being closed at one end is inserted into the pipe 1 to be expanded. The rod 6 longer than the flexible tube 2 is inserted into the tube 2, and both ends of the tube 2 are closed by tightly fixing to the rod 6; hereby, the tube 2 is restrained by the rod 6. The pressure unit 3 is communicated to inside of the tube 2 through the pathway bored in the rod 6, and the hydraulic pressure is applied to the tube 2 which is then expanded. By this expansion pressure, the pipe 1 is expanded from inside. The rod 6 restrains the longitudinal stretch of the tube 2 due to the hydraulic pressure given to the tube 2, so that the tube 2 efficiently expands radially, and expands the pipe 1 to the fully satisfactory condition.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1635079A JPS55109527A (en) | 1979-02-15 | 1979-02-15 | Hydraulic pipe expander |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1635079A JPS55109527A (en) | 1979-02-15 | 1979-02-15 | Hydraulic pipe expander |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55109527A true JPS55109527A (en) | 1980-08-23 |
Family
ID=11913909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1635079A Pending JPS55109527A (en) | 1979-02-15 | 1979-02-15 | Hydraulic pipe expander |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55109527A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5689340A (en) * | 1979-12-19 | 1981-07-20 | Showa Alum Corp | Pipe expanding method |
US4498220A (en) * | 1982-08-23 | 1985-02-12 | The Trane Company | Method for pre-expanding heat exchanger tube |
-
1979
- 1979-02-15 JP JP1635079A patent/JPS55109527A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5689340A (en) * | 1979-12-19 | 1981-07-20 | Showa Alum Corp | Pipe expanding method |
JPS6316211B2 (en) * | 1979-12-19 | 1988-04-07 | Showa Aluminium Co Ltd | |
US4498220A (en) * | 1982-08-23 | 1985-02-12 | The Trane Company | Method for pre-expanding heat exchanger tube |
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