Gas shroud and method

Details Gas shroud and method Gas shroud and method

1987-06-02

1989-02-07

Albritton, C. L.

Electric heating

Metal heating

By arc

2191216, 21912165, B23K 2614

Patent

active

048033359

ABSTRACT:
A gas shroud comprises a chamber having a beam inlet, a gas inlet and an outlet portion. A shroud having an inner surface and an outer surface is operably associated with the outlet portion and is rotatable relative to the chamber. A drive system is operably connected to the shroud for rotating the shroud. A plurality of fins are positioned about the outer surface of the shroud and are rotatable therewith so that rotation of the shroud causes the environment surrounding the shroud to be expelled radially away therefrom.

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