JPS57177838A - Double tube manufacturing device - Google Patents

Double tube manufacturing device

Info

Publication number
JPS57177838A
JPS57177838A JP56061137A JP6113781A JPS57177838A JP S57177838 A JPS57177838 A JP S57177838A JP 56061137 A JP56061137 A JP 56061137A JP 6113781 A JP6113781 A JP 6113781A JP S57177838 A JPS57177838 A JP S57177838A
Authority
JP
Japan
Prior art keywords
tube
piston
external
driver
rod
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
JP56061137A
Other languages
Japanese (ja)
Other versions
JPS5926378B2 (en
Inventor
Toshio Yoshida
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 JP56061137A priority Critical patent/JPS5926378B2/en
Publication of JPS57177838A publication Critical patent/JPS57177838A/en
Publication of JPS5926378B2 publication Critical patent/JPS5926378B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/051—Deforming double-walled bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE:To carry out an increase in diameter, tube expansion and binding in one pass and to improve the efficiency of manufacture of a dual tube by linking a piston of a rod having the liquid intake of an external-tube equipped internal tube, and a heating device and a cooling device on the external side of the external tube to a driver. CONSTITUTION:A piston 16 opposed to an internal tube 13 is provided atop of a rod 15 linked to a driver 19, the rod 15 is run throuh a sealed head 3, and the piston 16 and the internal tube form a tube expanding hydraulic chamber 18. Then, an external-tube cooling device 39 linked to the driver 19 is provided behind the piston 6, and a heating device 30 is also provided before the piston 16. Therefore, as the piston 16 moves forth, the external-tube heating device 30 moves forthe and a tube expansion area is formed previously by the front part of the piston 16 to perform heating and tube expansion simultaneously; and cooling is carried out immediately at a piston passage part, thus performing an increase in diameter, tube expansion, and binding in one path.
JP56061137A 1981-04-24 1981-04-24 Double pipe manufacturing equipment Expired JPS5926378B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56061137A JPS5926378B2 (en) 1981-04-24 1981-04-24 Double pipe manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56061137A JPS5926378B2 (en) 1981-04-24 1981-04-24 Double pipe manufacturing equipment

Publications (2)

Publication Number Publication Date
JPS57177838A true JPS57177838A (en) 1982-11-01
JPS5926378B2 JPS5926378B2 (en) 1984-06-27

Family

ID=13162389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56061137A Expired JPS5926378B2 (en) 1981-04-24 1981-04-24 Double pipe manufacturing equipment

Country Status (1)

Country Link
JP (1) JPS5926378B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59156522A (en) * 1983-02-25 1984-09-05 Kawasaki Heavy Ind Ltd Production of double-pipe
JPS6163315A (en) * 1984-09-06 1986-04-01 Sumitomo Metal Ind Ltd Production of seamless cladding tube
JPS62212016A (en) * 1986-03-12 1987-09-18 Sumitomo Light Metal Ind Ltd Manufacture of duplex tube
CN104942529A (en) * 2015-06-15 2015-09-30 北京金风科创风电设备有限公司 Bearing heating device and bearing heating system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59156522A (en) * 1983-02-25 1984-09-05 Kawasaki Heavy Ind Ltd Production of double-pipe
JPS6163315A (en) * 1984-09-06 1986-04-01 Sumitomo Metal Ind Ltd Production of seamless cladding tube
JPS62212016A (en) * 1986-03-12 1987-09-18 Sumitomo Light Metal Ind Ltd Manufacture of duplex tube
CN104942529A (en) * 2015-06-15 2015-09-30 北京金风科创风电设备有限公司 Bearing heating device and bearing heating system

Also Published As

Publication number Publication date
JPS5926378B2 (en) 1984-06-27

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