JPS579527A - Manufacture of square-shaped seam welded metallic tube - Google Patents

Manufacture of square-shaped seam welded metallic tube

Info

Publication number
JPS579527A
JPS579527A JP8445280A JP8445280A JPS579527A JP S579527 A JPS579527 A JP S579527A JP 8445280 A JP8445280 A JP 8445280A JP 8445280 A JP8445280 A JP 8445280A JP S579527 A JPS579527 A JP S579527A
Authority
JP
Japan
Prior art keywords
roll
welding
rolls
square
upward
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
JP8445280A
Other languages
Japanese (ja)
Other versions
JPS643569B2 (en
Inventor
Seiichiro Ogawa
Akio Akahori
Hirotaku Onda
Tsutomu Miyata
Hirotsugu Haga
Kazuo Aoki
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.)
Nippon Steel Corp
Nippon Steel Metal Products Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Metal Products Co 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 Nippon Steel Corp, Nippon Steel Metal Products Co Ltd filed Critical Nippon Steel Corp
Priority to JP8445280A priority Critical patent/JPS579527A/en
Publication of JPS579527A publication Critical patent/JPS579527A/en
Publication of JPS643569B2 publication Critical patent/JPS643569B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent an edge from lapping during welding by setting up a butting angle of upward side faces and performing welding under the pressure of upper and lower rolls and right and left rolls.
CONSTITUTION: A blank material 5, which is corner-bended in the processes up to a fin-path-roll 9 to form into an open section of roughly square-shaped, is sent to welding roll 10 in the next position. The material 5 is pressed from the periphery by the welding roll 10, 15, whereby, since for the roll 15 a caliber of welding rolls having a prescribed butting angle θ on upward faces composed of upper rolls 15a and 15b is used, therefore edges of upper side faces 21 and 22 make a weld juncture 11 without occurrence of overlaps and flaps. A square-shaped metallic tube 12 having the juncture 11 on its upward face is adjusted its sectional shape and its longitudinal shape through a Turk's head roll 13 for leveling, then, it is cut in a required length, thereby the product is made.
COPYRIGHT: (C)1982,JPO&Japio
JP8445280A 1980-06-21 1980-06-21 Manufacture of square-shaped seam welded metallic tube Granted JPS579527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8445280A JPS579527A (en) 1980-06-21 1980-06-21 Manufacture of square-shaped seam welded metallic tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8445280A JPS579527A (en) 1980-06-21 1980-06-21 Manufacture of square-shaped seam welded metallic tube

Publications (2)

Publication Number Publication Date
JPS579527A true JPS579527A (en) 1982-01-19
JPS643569B2 JPS643569B2 (en) 1989-01-23

Family

ID=13831004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8445280A Granted JPS579527A (en) 1980-06-21 1980-06-21 Manufacture of square-shaped seam welded metallic tube

Country Status (1)

Country Link
JP (1) JPS579527A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101193967B1 (en) 2012-07-05 2012-10-24 임완순 Appratus and method for producing triangle supporting frame

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101193967B1 (en) 2012-07-05 2012-10-24 임완순 Appratus and method for producing triangle supporting frame

Also Published As

Publication number Publication date
JPS643569B2 (en) 1989-01-23

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