JPS5699093A - Manufacture of stepped pipe - Google Patents

Manufacture of stepped pipe

Info

Publication number
JPS5699093A
JPS5699093A JP17357979A JP17357979A JPS5699093A JP S5699093 A JPS5699093 A JP S5699093A JP 17357979 A JP17357979 A JP 17357979A JP 17357979 A JP17357979 A JP 17357979A JP S5699093 A JPS5699093 A JP S5699093A
Authority
JP
Japan
Prior art keywords
pipe
diameter
collar
flange
stepped
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
JP17357979A
Other languages
Japanese (ja)
Inventor
Toshio Matsumoto
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 JP17357979A priority Critical patent/JPS5699093A/en
Publication of JPS5699093A publication Critical patent/JPS5699093A/en
Pending legal-status Critical Current

Links

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE: To manufacture easily a stepped pipe differing greatly in diameter by performing strong and stable welding by forming a flange by benting a large-diameter pipe inward while forming a collar outside of a small-diameter pipe, and then by welding the both pipes by butting.
CONSTITUTION: Large-diameter pipe 10 is bent inward at the terminal to form inside reinforcing flange 11. Small-diameter pipe 12 is expanded outward to form collar 13. These flange 11 and collar 13 are fitted together to constitute edge part 14. Edge part 14 is welded to complete a stepped pipe of thick pipe 10 and thin pipe 12. Reinforcing flange 11 bent inward provides strong and stable welding and its curvature and the shape of the collar of the expanded part are freely varied to manufacture easily the stepped pipe differing greatly in diameter. In addition, only one weld part is required, therefore, beautiful and safe pipe is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP17357979A 1979-12-29 1979-12-29 Manufacture of stepped pipe Pending JPS5699093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17357979A JPS5699093A (en) 1979-12-29 1979-12-29 Manufacture of stepped pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17357979A JPS5699093A (en) 1979-12-29 1979-12-29 Manufacture of stepped pipe

Publications (1)

Publication Number Publication Date
JPS5699093A true JPS5699093A (en) 1981-08-10

Family

ID=15963180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17357979A Pending JPS5699093A (en) 1979-12-29 1979-12-29 Manufacture of stepped pipe

Country Status (1)

Country Link
JP (1) JPS5699093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114310026A (en) * 2021-11-16 2022-04-12 福建同越管件有限公司 Pipe fitting with welding ring and branch pipe with pipe fitting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114310026A (en) * 2021-11-16 2022-04-12 福建同越管件有限公司 Pipe fitting with welding ring and branch pipe with pipe fitting

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