JPS5533841A - Production of hollow double pipe - Google Patents

Production of hollow double pipe

Info

Publication number
JPS5533841A
JPS5533841A JP10597378A JP10597378A JPS5533841A JP S5533841 A JPS5533841 A JP S5533841A JP 10597378 A JP10597378 A JP 10597378A JP 10597378 A JP10597378 A JP 10597378A JP S5533841 A JPS5533841 A JP S5533841A
Authority
JP
Japan
Prior art keywords
metal plate
pipe part
inside pipe
hollow double
recess
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
JP10597378A
Other languages
Japanese (ja)
Other versions
JPS567767B2 (en
Inventor
Motoichi Asada
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.)
TSURUGA HOOMINGU KK
Original Assignee
TSURUGA HOOMINGU 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 TSURUGA HOOMINGU KK filed Critical TSURUGA HOOMINGU KK
Priority to JP10597378A priority Critical patent/JPS5533841A/en
Publication of JPS5533841A publication Critical patent/JPS5533841A/en
Publication of JPS567767B2 publication Critical patent/JPS567767B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

PURPOSE: To enable the number of fabrications to be reduced considerably by applying roll forming to one sheet of metal plate thereby integrally forming an inside pipe part and an outside pipe part.
CONSTITUTION: A broad metal plate 1 is roll formed to form a recess 8 in the central part and this recess 8 is further formed circular to be formed to an inside pipe part 2 having a channel 5 of a desire diameter therein. At the sealing part of this inside pipe part 2, a metal plate superposed straight part 4 is integrally formed. Next, the excess metal plate both side portions 9, 10 extending from this straight line part 4 to both sides are given winding habit so as to be coiled around the inside pipe part 2, the both ends whereof are butted to form an outside pipe part 3. After this, welding 12, 13 are applied to the foregoing metal plate superposed straight part 4 and both parts 11, whereby the hollow double pipe 7 is completed.
COPYRIGHT: (C)1980,JPO&Japio
JP10597378A 1978-08-29 1978-08-29 Production of hollow double pipe Granted JPS5533841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10597378A JPS5533841A (en) 1978-08-29 1978-08-29 Production of hollow double pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10597378A JPS5533841A (en) 1978-08-29 1978-08-29 Production of hollow double pipe

Publications (2)

Publication Number Publication Date
JPS5533841A true JPS5533841A (en) 1980-03-10
JPS567767B2 JPS567767B2 (en) 1981-02-19

Family

ID=14421706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10597378A Granted JPS5533841A (en) 1978-08-29 1978-08-29 Production of hollow double pipe

Country Status (1)

Country Link
JP (1) JPS5533841A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100928230B1 (en) 2007-11-15 2009-11-24 정창선 Double pipe manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100928230B1 (en) 2007-11-15 2009-11-24 정창선 Double pipe manufacturing method

Also Published As

Publication number Publication date
JPS567767B2 (en) 1981-02-19

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