Method and apparatus for spraying metal to form a coating

Details Method and apparatus for spraying metal to form a coating Method and apparatus for spraying metal to form a coating

1996-12-09

1998-08-11

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Processes

Including mixing or combining with air, gas or steam

239 80, 239 84, B05B 124, B05C 504

Patent

active

057915601

ABSTRACT:
An arc spray bead for uniformly distributing molten metal. The head includes a pair of contact tips, a primary nozzle and a plurality of side nozzles. Wire is fed through the contact tips into an arc zone where the wire tips are melted. The plurality of side nozzles are located adjacent to the contact tips downstream from the primary nozzle. The primary nozzle blows the molten metal into the stream of the side nozzles. The nozzles atomize, cool and uniformly distribute the molten metal into a desired spray pattern. During spraying the feed wires are moved forward. Initially upon discontinuing the spraying, the feed wires are retracted in part to prevent fusing of the wire leads.

REFERENCES:
patent: 4492337 (1985-01-01), Harrington et al.
patent: 4512513 (1985-04-01), Rogers
patent: 4624410 (1986-11-01), Rogers
patent: 5254359 (1993-10-01), Zureck et al.
patent: 5308409 (1994-05-01), Kamimura et al.

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