JPS5684135A - Manufacture of bent pipe - Google Patents

Manufacture of bent pipe

Info

Publication number
JPS5684135A
JPS5684135A JP15875479A JP15875479A JPS5684135A JP S5684135 A JPS5684135 A JP S5684135A JP 15875479 A JP15875479 A JP 15875479A JP 15875479 A JP15875479 A JP 15875479A JP S5684135 A JPS5684135 A JP S5684135A
Authority
JP
Japan
Prior art keywords
pipe
bent
annular
working efficiency
manufacture
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
JP15875479A
Other languages
Japanese (ja)
Inventor
Yoshihiro Yonahara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15875479A priority Critical patent/JPS5684135A/en
Publication of JPS5684135A publication Critical patent/JPS5684135A/en
Pending legal-status Critical Current

Links

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE: To simplify the manufacturing process for a bent pipe at an excellent working efficiency so as to reduce the cost, by forming an annular pipe, then by manufacturing plural bent pipes by cutting the annular pipe crosswise.
CONSTITUTION: To manufacture a worked pipe 1, two semicircular-arc shaped annular bodies with bulging 11 are made of metallic plate by pressing etc., the needless peripheral part being cut to form tapered verge 12. These shaped bodies are arranged with their verges 12 placed face to face and are butt welded. Worked pipe 1 of dough-nut shape is cut crosswise into several pieces to form required bent pipes 2. The bent pipe 2 manufactured in this way is welded to the end of a pipe 3 to form one body. Hereby inside diameter D of the bent pipe 2 can be made sufficiently small compared with the diameter (r) of the joint pipe. Because plural bent pipes 2 are manufactured simultaneously, the manufactre is performed simply at excellent working efficiency and with excellent result.
COPYRIGHT: (C)1981,JPO&Japio
JP15875479A 1979-12-07 1979-12-07 Manufacture of bent pipe Pending JPS5684135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15875479A JPS5684135A (en) 1979-12-07 1979-12-07 Manufacture of bent pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15875479A JPS5684135A (en) 1979-12-07 1979-12-07 Manufacture of bent pipe

Publications (1)

Publication Number Publication Date
JPS5684135A true JPS5684135A (en) 1981-07-09

Family

ID=15678600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15875479A Pending JPS5684135A (en) 1979-12-07 1979-12-07 Manufacture of bent pipe

Country Status (1)

Country Link
JP (1) JPS5684135A (en)

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