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JPS551939A - Steel material surface repair device - Google Patents

Steel material surface repair device

Info

Publication number
JPS551939A
JPS551939A JP7469578A JP7469578A JPS551939A JP S551939 A JPS551939 A JP S551939A JP 7469578 A JP7469578 A JP 7469578A JP 7469578 A JP7469578 A JP 7469578A JP S551939 A JPS551939 A JP S551939A
Authority
JP
Japan
Prior art keywords
opposite polarity
repaired
polarity plasma
repair
plasma arc
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
JP7469578A
Other languages
Japanese (ja)
Inventor
Wataru Shimada
Susumu Hoshinouchi
Masatake Hiramoto
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 Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7469578A priority Critical patent/JPS551939A/en
Publication of JPS551939A publication Critical patent/JPS551939A/en
Pending legal-status Critical Current

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To repair the internal cracks, etc. of the pipe which has received corrosion under high efficinecy and high reliability by disposing two opposite polarity plasma arc heat sources by leaving a specified spacing, letting cleaning of the surface of the material to be repaired to be done by the former and melt repair by the latter.
CONSTITUTION: The first, second opposite polarity plasma torches 4, 5 are supported by leaving a specified spacing. A front opposite polarity plasma arc 4a in the shield atmosphere of single inert gas and its heat energy is distributed over a wide range to a material to be repaired 1, due to which contaminating deposits 3 such as the production of corrosion, tar and other are sublimated and the surface is cleaned. The second opposite polarity plasma arc 5a is in the shield atmosphere by mixed gases and the arc 5a is concentrated at a moderate density on the repair material surface, by which the cleaned surface is melted and the repaired surface 8 obtained. The uncleaned deposits 3 and their decomposition gas are also removed by the deoxidizer in the filler metal 7 which is melted at the same time.
COPYRIGHT: (C)1980,JPO&Japio
JP7469578A 1978-06-19 1978-06-19 Steel material surface repair device Pending JPS551939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7469578A JPS551939A (en) 1978-06-19 1978-06-19 Steel material surface repair device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7469578A JPS551939A (en) 1978-06-19 1978-06-19 Steel material surface repair device

Publications (1)

Publication Number Publication Date
JPS551939A true JPS551939A (en) 1980-01-09

Family

ID=13554613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7469578A Pending JPS551939A (en) 1978-06-19 1978-06-19 Steel material surface repair device

Country Status (1)

Country Link
JP (1) JPS551939A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140061165A1 (en) * 2011-03-31 2014-03-06 Norsk Titanium Components As Method and arrangement for building metallic objects by solid freeform fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511339A (en) * 1974-06-17 1976-01-08 Mitsubishi Heavy Ind Ltd ARUMINIUM UKEIKINZOKUZAINOYOSETSUHOHO
JPS5199650A (en) * 1975-02-28 1976-09-02 Mitsubishi Electric Corp Kozaino hyomenketsukanjokyohoho
JPS5323846A (en) * 1976-08-17 1978-03-04 Matsushita Electric Ind Co Ltd Tig welding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511339A (en) * 1974-06-17 1976-01-08 Mitsubishi Heavy Ind Ltd ARUMINIUM UKEIKINZOKUZAINOYOSETSUHOHO
JPS5199650A (en) * 1975-02-28 1976-09-02 Mitsubishi Electric Corp Kozaino hyomenketsukanjokyohoho
JPS5323846A (en) * 1976-08-17 1978-03-04 Matsushita Electric Ind Co Ltd Tig welding

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140061165A1 (en) * 2011-03-31 2014-03-06 Norsk Titanium Components As Method and arrangement for building metallic objects by solid freeform fabrication
US9481931B2 (en) * 2011-03-31 2016-11-01 Norsk Titanium As Method and arrangement for building metallic objects by solid freeform fabrication
US10421142B2 (en) 2011-03-31 2019-09-24 Norsk Titanium As Method and arrangement for building metallic objects by solid freeform fabrication using plasma transferred arc (PTA) torches
US11213920B2 (en) 2011-03-31 2022-01-04 Norsk Titanium As Method and arrangement for building metallic objects by solid freeform fabrication

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