JPS5530376A - Method and apparatus for expanding pipe - Google Patents
Method and apparatus for expanding pipeInfo
- Publication number
- JPS5530376A JPS5530376A JP10392678A JP10392678A JPS5530376A JP S5530376 A JPS5530376 A JP S5530376A JP 10392678 A JP10392678 A JP 10392678A JP 10392678 A JP10392678 A JP 10392678A JP S5530376 A JPS5530376 A JP S5530376A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- pressure
- specified
- linearly
- pipe material
- 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
Abstract
PURPOSE: To make the manufacture of the expanded pipe part with constant quality possible, by increasing the hydraulic pressure linearly to specified level, by holding this pressure for a specified period, and then, by linearly reducing the pressure, in case of expanding the pipe material by applying the hydraulic pressure to the inserted expander head.
CONSTITUTION: The expander head is constituted of installing the cylindrical elastic body around the outer surface of the holding metal provided with the high hydraulic pressure conducting hole; this expander head is inserted into the pipe material, and the hydraulic pressure is applied through the high hydraulic pressure conducting hole in order to expand the pipe material; hereupon, the hydraulic pressure is increased linearly to a specified level, and is held at this specified pressure for a specified period, and then, the pressure is linearly reducted; hereby, the specified expansion of the pipe is completed. Accoding to this method, the expansion of the pipe material free from the scattering of the bonding force becomes possible.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10392678A JPS5530376A (en) | 1978-08-28 | 1978-08-28 | Method and apparatus for expanding pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10392678A JPS5530376A (en) | 1978-08-28 | 1978-08-28 | Method and apparatus for expanding pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5530376A true JPS5530376A (en) | 1980-03-04 |
JPS5755496B2 JPS5755496B2 (en) | 1982-11-24 |
Family
ID=14367026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10392678A Granted JPS5530376A (en) | 1978-08-28 | 1978-08-28 | Method and apparatus for expanding pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5530376A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1604752A1 (en) * | 2004-06-03 | 2005-12-14 | Balcke-Dürr GmbH | Method and device for hydraulic expansion |
JP2009039763A (en) * | 2007-08-09 | 2009-02-26 | Sugino Mach Ltd | Mandrel sealing part |
KR101287630B1 (en) * | 2006-04-10 | 2013-07-24 | 가부시키가이샤 스기노 마신 | Hydraulic pipe expanding forming appratus |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6428297U (en) * | 1987-08-11 | 1989-02-20 | ||
JPH01178893U (en) * | 1988-06-08 | 1989-12-21 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52142356A (en) * | 1976-05-21 | 1977-11-28 | Balcke Duerr Ag | Method of sealing tube into hole of tubular plate |
-
1978
- 1978-08-28 JP JP10392678A patent/JPS5530376A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52142356A (en) * | 1976-05-21 | 1977-11-28 | Balcke Duerr Ag | Method of sealing tube into hole of tubular plate |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1604752A1 (en) * | 2004-06-03 | 2005-12-14 | Balcke-Dürr GmbH | Method and device for hydraulic expansion |
CN1332771C (en) * | 2004-06-03 | 2007-08-22 | 巴尔克有限公司 | Method and device for hydraulic expansion |
KR101287630B1 (en) * | 2006-04-10 | 2013-07-24 | 가부시키가이샤 스기노 마신 | Hydraulic pipe expanding forming appratus |
JP2009039763A (en) * | 2007-08-09 | 2009-02-26 | Sugino Mach Ltd | Mandrel sealing part |
Also Published As
Publication number | Publication date |
---|---|
JPS5755496B2 (en) | 1982-11-24 |
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