JPS5443865A - Explosive pipe expanding method - Google Patents
Explosive pipe expanding methodInfo
- Publication number
- JPS5443865A JPS5443865A JP10998477A JP10998477A JPS5443865A JP S5443865 A JPS5443865 A JP S5443865A JP 10998477 A JP10998477 A JP 10998477A JP 10998477 A JP10998477 A JP 10998477A JP S5443865 A JPS5443865 A JP S5443865A
- Authority
- JP
- Japan
- Prior art keywords
- explosives
- pipe
- explosive
- pipe expanding
- expanding method
- 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 prevent the crack of the pipe in the explosive expanding work, by weakening the power of explosion at the end of the explosives, when the explosive expansion is carried out.
CONSTITUTION: When the pipe 2 is expanded using the explosives 1 on purpose to pressure weld the pipe 2 to the tube sheet 3, the tip part of explosives 1 is formed into a conical part 4, for instance, so as to weaken the power of explosion. The longer the length of the conical part 4 is, the larger the effect is; however, about 10mm or so is suitable for the practical purpose.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10998477A JPS5443865A (en) | 1977-09-14 | 1977-09-14 | Explosive pipe expanding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10998477A JPS5443865A (en) | 1977-09-14 | 1977-09-14 | Explosive pipe expanding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5443865A true JPS5443865A (en) | 1979-04-06 |
Family
ID=14524121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10998477A Pending JPS5443865A (en) | 1977-09-14 | 1977-09-14 | Explosive pipe expanding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5443865A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021012136A1 (en) * | 2019-07-22 | 2021-01-28 | 中国石油大学(华东) | Method for calculating internal explosion load rate based on progressive extension distance of pipeline cracks |
-
1977
- 1977-09-14 JP JP10998477A patent/JPS5443865A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021012136A1 (en) * | 2019-07-22 | 2021-01-28 | 中国石油大学(华东) | Method for calculating internal explosion load rate based on progressive extension distance of pipeline cracks |
US11566987B1 (en) | 2019-07-22 | 2023-01-31 | China University Of Petroleum (East China) | Method for calculating internal explosion load speed based on incremental crack growth distance of pipeline |
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