JPS57130790A - Method and apparatus for manufacturing double tube - Google Patents
Method and apparatus for manufacturing double tubeInfo
- Publication number
- JPS57130790A JPS57130790A JP1438081A JP1438081A JPS57130790A JP S57130790 A JPS57130790 A JP S57130790A JP 1438081 A JP1438081 A JP 1438081A JP 1438081 A JP1438081 A JP 1438081A JP S57130790 A JPS57130790 A JP S57130790A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pressure
- thrusting force
- liquid pressure
- axial
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
PURPOSE:To satisfy fastening of circumferential direction and at the same time, make axial thrust sufficient by applying axial thrusting force to an inner tube simultaneously with application of tube expanding liquid pressure, maintaining axial thrusting force at specified pressure of tube expanding liquid pressure at the contact point of inner and outer tubes, and continuing to apply axial thrusting force for a specified time after removing the tube expanding liquid pressure. CONSTITUTION:An inner tube 2 is put in an outer tube 1 and the inner tube 2 is expanded and plastic deformed by applying liquid pressure to inside of the inner tube, and a fastened double tube is manufactured. At this time, with specified rise of tube expanding liquid pressure, a hydraulic jack 16 is operated for the inner tube 2 to push forward a plunger 17. A check valve 10 is then closed to raise pressure of filled cooling water and axial thrusting force is applied. This axial thrusting force is maintained at a specified pressure of tube expanding pressure at the contact of inner and outer tubes, and the axial thrusting force is continuously applied for a specified time after removing the tube expanding liquid pressure. Consequently, sufficient axial compression residual stress is obtained in addition to the self-fastening of tubes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1438081A JPS57130790A (en) | 1981-02-04 | 1981-02-04 | Method and apparatus for manufacturing double tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1438081A JPS57130790A (en) | 1981-02-04 | 1981-02-04 | Method and apparatus for manufacturing double tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57130790A true JPS57130790A (en) | 1982-08-13 |
JPS644876B2 JPS644876B2 (en) | 1989-01-27 |
Family
ID=11859431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1438081A Granted JPS57130790A (en) | 1981-02-04 | 1981-02-04 | Method and apparatus for manufacturing double tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57130790A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104128386A (en) * | 2014-07-31 | 2014-11-05 | 西安交通大学 | Device and technology for plastic forming of bimetal composite pipe by high-pressure liquid jet |
CN104384230A (en) * | 2014-07-31 | 2015-03-04 | 西安交通大学 | Apparatus and technology for high-speed shot-blast progressive plastic forming of double-metal composite pipe |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933452A (en) * | 1982-08-19 | 1984-02-23 | Toshiba Corp | Film holder |
-
1981
- 1981-02-04 JP JP1438081A patent/JPS57130790A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933452A (en) * | 1982-08-19 | 1984-02-23 | Toshiba Corp | Film holder |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104128386A (en) * | 2014-07-31 | 2014-11-05 | 西安交通大学 | Device and technology for plastic forming of bimetal composite pipe by high-pressure liquid jet |
CN104384230A (en) * | 2014-07-31 | 2015-03-04 | 西安交通大学 | Apparatus and technology for high-speed shot-blast progressive plastic forming of double-metal composite pipe |
Also Published As
Publication number | Publication date |
---|---|
JPS644876B2 (en) | 1989-01-27 |
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