Electric heating – Metal heating – By arc
Patent
1996-08-26
1997-11-25
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912145, 21912146, 219 7321, 219 7616, 239 85, 427446, 118308, B23K 1000
Patent
active
056908440
ABSTRACT:
An apparatus and method feeds weld material to an underwater plasma transferred arc welding torch. The weld material comprises a powder, which can be entrained in a fluidizing gas flow. The weld material is fed by the apparatus from a first supply through at least one conduit to a supply container. The apparatus comprises a first powder supply pressurized with a powder carrier gas positioned above the surface of the body of water; a second powder supply container positioned below the surface of the body of water and the second powder supply container comprising at least one powder outlet port and a gas vent open to the above surface atmosphere; at least one powder conduit connecting the first container with the second container; an underwater welding torch positioned near the second container and having at least one powder inlet; and at least one powder conduit connecting the second powder supply container to the at least one powder inlet of the torch. The method of underwater welding includes transferring of weld filler powder from the underwater supply container to the torch at a reduced flow rate by venting at least a portion of the carrier gas to the atmosphere above the surface of the body of water.
REFERENCES:
patent: 3627965 (1971-12-01), Zweig
patent: 3839618 (1974-10-01), Muehlberger
patent: 4391860 (1983-07-01), Rotolico et al.
patent: 4696855 (1987-09-01), Pettit, Jr. et al.
patent: 4901921 (1990-02-01), Dallaire et al.
patent: 5047612 (1991-09-01), Sarkar et al.
Fusaro, Jr. Robert Anthony
Gray Dennis Michael
White Raymond Alan
Cusick Ernest G.
General Electric Company
Paschall Mark H.
Pittman William H.
LandOfFree
Powder feed for underwater welding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Powder feed for underwater welding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powder feed for underwater welding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2103942