JPS54134064A - Pipe expansion - Google Patents
Pipe expansionInfo
- Publication number
- JPS54134064A JPS54134064A JP4250378A JP4250378A JPS54134064A JP S54134064 A JPS54134064 A JP S54134064A JP 4250378 A JP4250378 A JP 4250378A JP 4250378 A JP4250378 A JP 4250378A JP S54134064 A JPS54134064 A JP S54134064A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pressure
- liquid
- coolers
- turned
- 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
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: A pipe is filled with a liquid and any two points are frozen to cause pressure therebetween enough to expand the pipe statically.
CONSTITUTION: A pipe 2 is fully filled with a liquid such as water through the auxiliary pipe 9. The switch valve 17 is turned to the cooling side and the switch valves 6 are opened to fill the coolers 3 symmetrically arranged to the pipe plate 1 with cooling medium 15 such as liquid nitrogen. The pipe portions facing the coolers 3 are simultaneously frozen at frozing zone 14a, 14b. When the freezing proceeds, the unfrozen center portion 13b is experienced with strong forces from both sides. Such force acts on the side wall of the pipe 2 and as pressure increases, the pipe 2 is plastically deformed to firmly contact with the pipe plate 1. This pressure is indicated on the pressure gauge 12. After the completion of the pipe expansion, the cooling medium is stopped and naturally melted, or alternatively the switch valve is turned to the warm side to send warm water from the warm water reservoir 16 for metling.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4250378A JPS54134064A (en) | 1978-04-11 | 1978-04-11 | Pipe expansion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4250378A JPS54134064A (en) | 1978-04-11 | 1978-04-11 | Pipe expansion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54134064A true JPS54134064A (en) | 1979-10-18 |
Family
ID=12637862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4250378A Pending JPS54134064A (en) | 1978-04-11 | 1978-04-11 | Pipe expansion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54134064A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801621A (en) * | 2015-05-02 | 2015-07-29 | 汪浩 | Liquid-nitrogen diameter expanding apparatus for pipeline |
| CN109500195A (en) * | 2018-11-19 | 2019-03-22 | 大连理工大学 | A kind of special tubes and pipes of aluminium alloy part ultralow temperature pressure medium manufacturing process |
| CN115274590A (en) * | 2022-08-05 | 2022-11-01 | 苏州鲁卡斯金属科技有限公司 | Low-temperature expansion sealing machining method for copper pipe channel of water-cooled liquid-cooled plate |
-
1978
- 1978-04-11 JP JP4250378A patent/JPS54134064A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801621A (en) * | 2015-05-02 | 2015-07-29 | 汪浩 | Liquid-nitrogen diameter expanding apparatus for pipeline |
| CN109500195A (en) * | 2018-11-19 | 2019-03-22 | 大连理工大学 | A kind of special tubes and pipes of aluminium alloy part ultralow temperature pressure medium manufacturing process |
| CN115274590A (en) * | 2022-08-05 | 2022-11-01 | 苏州鲁卡斯金属科技有限公司 | Low-temperature expansion sealing machining method for copper pipe channel of water-cooled liquid-cooled plate |
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