JPS5714479A - Manufacture of finned steel tube - Google Patents

Manufacture of finned steel tube

Info

Publication number
JPS5714479A
JPS5714479A JP8908880A JP8908880A JPS5714479A JP S5714479 A JPS5714479 A JP S5714479A JP 8908880 A JP8908880 A JP 8908880A JP 8908880 A JP8908880 A JP 8908880A JP S5714479 A JPS5714479 A JP S5714479A
Authority
JP
Japan
Prior art keywords
steel tube
welded
electric
fin
butt seam
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
JP8908880A
Other languages
Japanese (ja)
Inventor
Masatatsu Haraguchi
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP8908880A priority Critical patent/JPS5714479A/en
Publication of JPS5714479A publication Critical patent/JPS5714479A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate forming of a steel tube having a fin of any size by inserting the end of a hoop into a gap in butt seam welding of an electric-welded tube and fixing the fin along the electric-welded tube simultaneously with butt seam welding.
CONSTITUTION: In manufacturing process of an electric-welded steel tube, the gap is heated and pressed by a welding device 4 and pressure rolls 5 and butt seam welded. At this time, the lower end of a hoop for a fin sent in vertical position synchronously with the feed speed of a tubular member is inserted into the gap. At the same time with butt seam welding, a fin 8 is fixed along the longitudinal direction of the electric-welded tube to form a finned steel tube 9.
COPYRIGHT: (C)1982,JPO&Japio
JP8908880A 1980-07-02 1980-07-02 Manufacture of finned steel tube Pending JPS5714479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8908880A JPS5714479A (en) 1980-07-02 1980-07-02 Manufacture of finned steel tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8908880A JPS5714479A (en) 1980-07-02 1980-07-02 Manufacture of finned steel tube

Publications (1)

Publication Number Publication Date
JPS5714479A true JPS5714479A (en) 1982-01-25

Family

ID=13961111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8908880A Pending JPS5714479A (en) 1980-07-02 1980-07-02 Manufacture of finned steel tube

Country Status (1)

Country Link
JP (1) JPS5714479A (en)

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