JPH0318475A - Method for welding peripheral joint of duplex tube - Google Patents

Method for welding peripheral joint of duplex tube

Info

Publication number
JPH0318475A
JPH0318475A JP14987989A JP14987989A JPH0318475A JP H0318475 A JPH0318475 A JP H0318475A JP 14987989 A JP14987989 A JP 14987989A JP 14987989 A JP14987989 A JP 14987989A JP H0318475 A JPH0318475 A JP H0318475A
Authority
JP
Japan
Prior art keywords
tube
tubes
duplex
welding
peripheral joint
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
JP14987989A
Other languages
Japanese (ja)
Inventor
Takeshi Terasawa
Teruhiko Hayashi
Original Assignee
Nippon Steel Corp
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 filed Critical Nippon Steel Corp
Priority to JP14987989A priority Critical patent/JPH0318475A/en
Publication of JPH0318475A publication Critical patent/JPH0318475A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform welding with high working efficiency at the inexpensive welding material cost by forming gaps between outer tube and inner tube of tube end parts of duplex tube abutting outer tubes and inner tubes on each other respectively and welding the outer tubes and the inner tubes from the tube exterior side and the tube interior side separately respectively.
CONSTITUTION: The gap 4 is formed between the outer tube 2 and the inner tube 3 of the tube end part of the duplex tube 1 and the gap 4' is formed between the outer tube 2' and the inner tube 3' of the tube end part of the duplex tube 1' and the outer tubes 2 and 2', and the inner tubes 3 and 3' are abutted on each other and welded together separately respectively. The outer tubes 2 and 2', and the inner tubes 3 and 3' are welded from the exterior side and the interior side, respectively and at this time, the care is taken so that weld zones are not brought into contact and fused with each other. By this method, working efficiency is improved and the working material cost can be reduced.
COPYRIGHT: (C)1991,JPO&Japio
JP14987989A 1989-06-13 1989-06-13 Method for welding peripheral joint of duplex tube Pending JPH0318475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14987989A JPH0318475A (en) 1989-06-13 1989-06-13 Method for welding peripheral joint of duplex tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14987989A JPH0318475A (en) 1989-06-13 1989-06-13 Method for welding peripheral joint of duplex tube

Publications (1)

Publication Number Publication Date
JPH0318475A true JPH0318475A (en) 1991-01-28

Family

ID=15484632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14987989A Pending JPH0318475A (en) 1989-06-13 1989-06-13 Method for welding peripheral joint of duplex tube

Country Status (1)

Country Link
JP (1) JPH0318475A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058044A (en) * 1991-01-22 1993-01-19 Jgc Corp Welding method for clad steel plates
TWI551388B (en) * 2013-06-05 2016-10-01 國立屏東科技大學 An inner sleeve for tube welding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058044A (en) * 1991-01-22 1993-01-19 Jgc Corp Welding method for clad steel plates
TWI551388B (en) * 2013-06-05 2016-10-01 國立屏東科技大學 An inner sleeve for tube welding

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