JPS5756116A - Simultaneous bending method for double pipe in one body - Google Patents

Simultaneous bending method for double pipe in one body

Info

Publication number
JPS5756116A
JPS5756116A JP13065880A JP13065880A JPS5756116A JP S5756116 A JPS5756116 A JP S5756116A JP 13065880 A JP13065880 A JP 13065880A JP 13065880 A JP13065880 A JP 13065880A JP S5756116 A JPS5756116 A JP S5756116A
Authority
JP
Japan
Prior art keywords
pipe
hole
packing medium
double
bending work
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.)
Pending
Application number
JP13065880A
Other languages
Japanese (ja)
Inventor
Masamitsu Omiya
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.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi 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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP13065880A priority Critical patent/JPS5756116A/en
Publication of JPS5756116A publication Critical patent/JPS5756116A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To form a double-bend pipe without dividing and reuniting its outer pipe, by applying a bending work to a double blank pipe after filling up the gap between the outer pipe and inner pipe and the inside of the inner pipe, with a restraining packing medium.
CONSTITUTION: For manufacturing a jacketted line pipe, an inner pipe 1 is inserted into an outer pipe 2, and whose both ends are closed with flat plates 3 provided with a hole respectively. A packing medium 4 such as paraffin, in a viscous liquid state as a result of heating, is introduced 6 or fed under pressure through the hole of the plate 3 on one side, while purging 7 the inner air through the hole of another plate 3. The packing medium 4 is solidified by cooling, and then, a prescribed bending work is applied to the blank pipe. After completing the bending work, the whole blank pipe is heated and steam 8 is injected through the hole of the plate 3; hereby, the packing medium 4 is steamed off at 9 of the pipe, and a double-bend pipe is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP13065880A 1980-09-22 1980-09-22 Simultaneous bending method for double pipe in one body Pending JPS5756116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13065880A JPS5756116A (en) 1980-09-22 1980-09-22 Simultaneous bending method for double pipe in one body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13065880A JPS5756116A (en) 1980-09-22 1980-09-22 Simultaneous bending method for double pipe in one body

Publications (1)

Publication Number Publication Date
JPS5756116A true JPS5756116A (en) 1982-04-03

Family

ID=15039508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13065880A Pending JPS5756116A (en) 1980-09-22 1980-09-22 Simultaneous bending method for double pipe in one body

Country Status (1)

Country Link
JP (1) JPS5756116A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5811776A (en) * 1981-04-06 1983-01-22 ユ−テクテイツク・コ−ポレイシヨン Flame spray powder
JPS60153055U (en) * 1984-03-22 1985-10-12 京葉瓦斯株式会社 Integrated intercom and meter reading system for apartment complexes
US5555762A (en) * 1992-10-12 1996-09-17 Honda Giken Kogyo Kabushi Kaisha Method of bending metallic pipe
KR20020087608A (en) * 2001-05-15 2002-11-23 조숙자 Banding double-pipe and method of banding it
KR20050038203A (en) * 2003-10-21 2005-04-27 김기우 Method for bending a duplex pipe having a heat pipe chamber therein

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5811776A (en) * 1981-04-06 1983-01-22 ユ−テクテイツク・コ−ポレイシヨン Flame spray powder
JPH0140912B2 (en) * 1981-04-06 1989-09-01 Eutectic Corp
JPS60153055U (en) * 1984-03-22 1985-10-12 京葉瓦斯株式会社 Integrated intercom and meter reading system for apartment complexes
US5555762A (en) * 1992-10-12 1996-09-17 Honda Giken Kogyo Kabushi Kaisha Method of bending metallic pipe
KR20020087608A (en) * 2001-05-15 2002-11-23 조숙자 Banding double-pipe and method of banding it
KR20050038203A (en) * 2003-10-21 2005-04-27 김기우 Method for bending a duplex pipe having a heat pipe chamber therein

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