JPS55133896A - Welding method of pipe joint - Google Patents

Welding method of pipe joint

Info

Publication number
JPS55133896A
JPS55133896A JP4111579A JP4111579A JPS55133896A JP S55133896 A JPS55133896 A JP S55133896A JP 4111579 A JP4111579 A JP 4111579A JP 4111579 A JP4111579 A JP 4111579A JP S55133896 A JPS55133896 A JP S55133896A
Authority
JP
Japan
Prior art keywords
outside
pipe
welding
clearance
fillet
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
JP4111579A
Other languages
Japanese (ja)
Inventor
Kyozo Yoshioka
Hikari Takei
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4111579A priority Critical patent/JPS55133896A/en
Publication of JPS55133896A publication Critical patent/JPS55133896A/en
Pending legal-status Critical Current

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  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE: To make possible automatic welding without causing any defect in weld zone by heating the outside pipe surface of the weld zone to reduce the outside pipe diameter and make the clearance between the inside and outside pipes correct at the time of fillet-welding the pipe faying parts in an ocean structure or crane using pipes.
CONSTITUTION: If the clearance 4 between an inside pipe 1 and an outside pipe 2 is too large, weld beads 5 are put on the entire outside surface circumference close to the free end of the outside pipe 2 or the entire circumference is heated by a non-consumable electrode. As a result of this, shrinkage and falling occur on account of the heating, resulting in the decreased spacing of the faying parts and providing the clearance that permits automatic fillet welding. If the automatic welding is done in this state, the defect-free fillet welding 3 is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP4111579A 1979-04-06 1979-04-06 Welding method of pipe joint Pending JPS55133896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4111579A JPS55133896A (en) 1979-04-06 1979-04-06 Welding method of pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4111579A JPS55133896A (en) 1979-04-06 1979-04-06 Welding method of pipe joint

Publications (1)

Publication Number Publication Date
JPS55133896A true JPS55133896A (en) 1980-10-18

Family

ID=12599456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4111579A Pending JPS55133896A (en) 1979-04-06 1979-04-06 Welding method of pipe joint

Country Status (1)

Country Link
JP (1) JPS55133896A (en)

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