JPS55144936A - Manufacture of triplex tube - Google Patents
Manufacture of triplex tubeInfo
- Publication number
- JPS55144936A JPS55144936A JP4965579A JP4965579A JPS55144936A JP S55144936 A JPS55144936 A JP S55144936A JP 4965579 A JP4965579 A JP 4965579A JP 4965579 A JP4965579 A JP 4965579A JP S55144936 A JPS55144936 A JP S55144936A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tube member
- members
- triplex
- tubular member
- 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 produce a triplex tube by inserting an intermediate tube member into a thermally expanded outer tube member relative thereto, and an inner tube member into the intermediate tube member, applying a tube expanding pressure to the interior of the inner tube member to expand the inner tubular member and fix the same to the outer tubular member via the intermediate tube member, and then subjecting the outer tubular member to thermal contraction and the inner tubular member to thermal expansion.
CONSTITUTION: A triplex tube consists of outer and inner stainless steel tube members 1, 3 and an intermediate carbon steel tube member 2. The tube members 1, 2, 3 have the respective initial outer and inner diameters D1, D1', D2, D2', D3, D3'. The yield point of the tube member 1 is higher than that of the tube member 2, and the yield point of the tube member 2 is higher than that of the tube member 3. The relation in diameters between the tube members 1, 2, 3 is D1>D1' >D2> D2'>D3>D3'. A tube expanding pressure is then applied to the interior of the inner tube member 3 as the inner and outer tube members 3, 1 are relatively superposed on the inner and outer surfaces of the intermediate tube member 2, to expand the inner tube member 3. After the inner tube member 3 has thus been fixed to the intermediate tube member 2 or to the outer tube member 1 via the intermediate tube member 2, the tube expanding pressure is released. The outer and inner tube members 1, 3 are then subjected to a cooling-contracting step and a heating- expanding step, respectively to combine the tube members 1, 2, 3 together. As a reuslt, a triplex tube used for oil-drilling can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4965579A JPS5819416B2 (en) | 1979-04-24 | 1979-04-24 | Triple pipe manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4965579A JPS5819416B2 (en) | 1979-04-24 | 1979-04-24 | Triple pipe manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55144936A true JPS55144936A (en) | 1980-11-12 |
| JPS5819416B2 JPS5819416B2 (en) | 1983-04-18 |
Family
ID=12837196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4965579A Expired JPS5819416B2 (en) | 1979-04-24 | 1979-04-24 | Triple pipe manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819416B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5861919A (en) * | 1981-10-08 | 1983-04-13 | Kawasaki Heavy Ind Ltd | Manufacture of double-ply tube |
| JPS5861917A (en) * | 1981-10-08 | 1983-04-13 | Kawasaki Heavy Ind Ltd | Manufacture of double-ply pipe |
| JPS6250015A (en) * | 1985-08-30 | 1987-03-04 | Kobe Steel Ltd | Manufacture of multilayer cylinder |
| JP2016534880A (en) * | 2013-08-23 | 2016-11-10 | ヴァルレック・トゥーボス・ド・ブラジル・ソシエダージ・アノニマＶａｌｌｏｕｒｅｃ Ｔｕｂｏｓ ｄｏ Ｂｒａｓｉｌ Ｓ．Ａ． | Method for manufacturing multilayer pipes by expansion and multilayer pipes manufactured by said method |
-
1979
- 1979-04-24 JP JP4965579A patent/JPS5819416B2/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5861919A (en) * | 1981-10-08 | 1983-04-13 | Kawasaki Heavy Ind Ltd | Manufacture of double-ply tube |
| JPS5861917A (en) * | 1981-10-08 | 1983-04-13 | Kawasaki Heavy Ind Ltd | Manufacture of double-ply pipe |
| JPS6366609B2 (en) * | 1981-10-08 | 1988-12-21 | Kawasaki Heavy Ind Ltd | |
| JPS6366610B2 (en) * | 1981-10-08 | 1988-12-21 | Kawasaki Heavy Ind Ltd | |
| JPS6250015A (en) * | 1985-08-30 | 1987-03-04 | Kobe Steel Ltd | Manufacture of multilayer cylinder |
| JP2016534880A (en) * | 2013-08-23 | 2016-11-10 | ヴァルレック・トゥーボス・ド・ブラジル・ソシエダージ・アノニマＶａｌｌｏｕｒｅｃ Ｔｕｂｏｓ ｄｏ Ｂｒａｓｉｌ Ｓ．Ａ． | Method for manufacturing multilayer pipes by expansion and multilayer pipes manufactured by said method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5819416B2 (en) | 1983-04-18 |
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