Abstract: A welding rod with a water resistant coating (14), and a method of making the same, is disclosed. To the surface of the welding rod is applied one or more coatings (14) comprising a plurality of metallic flakes and an organic binding agent which adheres the coating (14) to the electrode covering (12) on surfaces of the welding rod (10) and imparts the water resistance. The coating may comprise a thermoset phenolic resin and metallic flakes with an average particle size between 12 and 25 microns.

Abstract: An integral nozzle-shield assembly for a gas-cooled dynamoelectric machine such as a large turbine-driven generator is described. The nozzle-shield assembly is formed of a non-conductive, non-magnetic material such as molded fiberglass and resin and serves to channel hydrogen gas between a heat exchanger and a rotor-mounted fan used to pump the gas through coolant passages in the dynamoelectric machine, and the assembly also provides a labyrinth seal over the fan blade tips. In one embodiment, the nozzle-shield assembly includes two 180-degree halves whose thickness varies circumferentially and which may be installed in a generator by bolting their outer edges to a stator frame member of the generator and bolting the halves together at the two radial joints between halves using flat metal plate connectors.