Electric heating – Metal heating – By arc
Patent
1981-08-14
1984-06-19
Paschall, M. H.
Electric heating
Metal heating
By arc
219121PN, 219121PY, 219 75, 239125, 239128, 2391321, 31323131, B23K 900
Patent
active
044554702
ABSTRACT:
A plasma spray gun system with improved nozzle life. The gun includes a nozzle with a thin annular coolant passage and having a dimension optimized for nozzle life. The system also includes a deionizer to remove ions from the cooling fluid and a dissolved gas remover which also improves nozzle life. In addition, the coolant is treated to remove ions which extends nozzle life even more. Further cooling fluid treatment for even further nozzle life includes dissolved gas removal and heat removal.
REFERENCES:
patent: 3830428 (1974-08-01), Dyos
patent: 4059743 (1977-11-01), Esibian et al.
patent: 4293755 (1981-10-01), Hill et al.
Welding Handbook, pp. 29.34, 29.35, Section 2, 6 Edition, "Plasma Spraying".
Bhansali Chandra K.
Fox Thomas J.
Klein John F.
Smyth Richard T.
Zatorski Raymond A.
Crane J. D.
Giarratana S. A.
Masselle F. L.
Paschall M. H.
The Perkin-Elmer Corporation
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