JPS57130790A - Method and apparatus for manufacturing double tube - Google Patents

Method and apparatus for manufacturing double tube

Info

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
Application number
JP1438081A
Other languages
Japanese (ja)
Other versions
JPS644876B2 (en
Inventor
Takeo Yasuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to JP1438081A priority Critical patent/JPS57130790A/en
Publication of JPS57130790A publication Critical patent/JPS57130790A/en
Publication of JPS644876B2 publication Critical patent/JPS644876B2/ja
Granted legal-status Critical Current

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

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.
JP1438081A 1981-02-04 1981-02-04 Method and apparatus for manufacturing double tube Granted JPS57130790A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933452A (en) * 1982-08-19 1984-02-23 Toshiba Corp Film holder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933452A (en) * 1982-08-19 1984-02-23 Toshiba Corp Film holder

Cited By (2)

* Cited by examiner, † Cited by third party
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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