JPH0450125B2 - - Google Patents
Info
- Publication number
- JPH0450125B2 JPH0450125B2 JP12266785A JP12266785A JPH0450125B2 JP H0450125 B2 JPH0450125 B2 JP H0450125B2 JP 12266785 A JP12266785 A JP 12266785A JP 12266785 A JP12266785 A JP 12266785A JP H0450125 B2 JPH0450125 B2 JP H0450125B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- outer tube
- inner tube
- pipe
- diameter
- 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.)
- Expired
Links
- 238000005520 cutting process Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 230000001965 increasing effect Effects 0.000 claims description 11
- 238000005304 joining Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 239000002184 metal Substances 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Turning (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12266785A JPS61284325A (ja) | 1985-06-07 | 1985-06-07 | 二重管製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12266785A JPS61284325A (ja) | 1985-06-07 | 1985-06-07 | 二重管製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61284325A JPS61284325A (ja) | 1986-12-15 |
| JPH0450125B2 true JPH0450125B2 (fr) | 1992-08-13 |
Family
ID=14841655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12266785A Granted JPS61284325A (ja) | 1985-06-07 | 1985-06-07 | 二重管製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61284325A (fr) |
-
1985
- 1985-06-07 JP JP12266785A patent/JPS61284325A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61284325A (ja) | 1986-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |