JPS5485153A - Multi-layer overplay welding method by plasma welding - Google Patents

Multi-layer overplay welding method by plasma welding

Info

Publication number
JPS5485153A
JPS5485153A JP15238877A JP15238877A JPS5485153A JP S5485153 A JPS5485153 A JP S5485153A JP 15238877 A JP15238877 A JP 15238877A JP 15238877 A JP15238877 A JP 15238877A JP S5485153 A JPS5485153 A JP S5485153A
Authority
JP
Japan
Prior art keywords
welding
layer
carried out
arc
plasma
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
JP15238877A
Other languages
Japanese (ja)
Inventor
Tadashi Nakamura
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 Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP15238877A priority Critical patent/JPS5485153A/en
Publication of JPS5485153A publication Critical patent/JPS5485153A/en
Pending legal-status Critical Current

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To form smooth uranami bead using one welding torch and to improve the ability of joint part, by welding from the first layer to the last layer fixing gas flowing amount at constant, at the time of carrying out butt welding of tube.
CONSTITUTION: The shield gas 11 is blown out from the shield cap 7 and the material to be welded 1 generating arc from the tungsten electrode 5, is rotated in the direction 16 and fusion welding without filler metal is carried out by the soft arc of plasma welding torch. That is, the arc is generated between the electrode 5 and the material 1 when the remote control 12 is made ON and one round welding is carried out accompanied by the rotation of the material 1 fusing the sending core wire 14 and the material 1. Welding on and after the second layer is continuously carried out continuing the above condition. By the above method, control of welding condition is made unnecessary and also, wide and smooth uranami bead is able to obtain.
COPYRIGHT: (C)1979,JPO&Japio
JP15238877A 1977-12-20 1977-12-20 Multi-layer overplay welding method by plasma welding Pending JPS5485153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15238877A JPS5485153A (en) 1977-12-20 1977-12-20 Multi-layer overplay welding method by plasma welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15238877A JPS5485153A (en) 1977-12-20 1977-12-20 Multi-layer overplay welding method by plasma welding

Publications (1)

Publication Number Publication Date
JPS5485153A true JPS5485153A (en) 1979-07-06

Family

ID=15539417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15238877A Pending JPS5485153A (en) 1977-12-20 1977-12-20 Multi-layer overplay welding method by plasma welding

Country Status (1)

Country Link
JP (1) JPS5485153A (en)

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