ARC WELDING METHOD FOR MAGNETISED BODIES DURING RECOVERY OPERATIONS Russian patent published in 2009 - IPC B23K31/02 B23K9/08 B23P6/00

Abstract RU 2344909 C2

FIELD: electricity; processes.

SUBSTANCE: method includes removal of defected area, installation of weld joints, local concentration of magnetic field counteracting to residual magnetic field and joints welding. Concurrently with welding, the welding area is affected by magnetic field along the normal to the weld and arc axis. At the same time variable magnetic field is created by superimposed coil coated with asbestos tape and energised at 50 Hz frequency. Besides variable magnetic field amplitude near welding surface is 80-100% from the residual intensity of magnetisation within the gap.

EFFECT: simple welding process and stable quality of weld joints for magnetised bodies without demagnetisation.

2 cl, 3 dwg

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RU 2 344 909 C2

Authors

Sinev Andrej Ivanovich

Filippov Gennadij Ivanovich

Morozov Aleksej Konstantinovich

Dates

2009-01-27—Published

2007-02-05—Filed