Method for vapor-coating turbine buckets

Details Method for vapor-coating turbine buckets Method for vapor-coating turbine buckets

1978-11-21

1980-11-11

Smith, Ronald H.

Coating processes

Coating by vapor, gas, or smoke

Metal coating

4272555, 416241R, 291568B, B23K 3512

Patent

active

042333423

ABSTRACT:
Method for vacuum depositing corrosion and oxidation resistant alloy coatings on turbine buckets having leading edges and trailing edges, with simultaneous rotation of the turbine buckets about their longitudinal axis in a vapor stream above a vapor source. The time of stay of each element of the surface above the vapor source is varied during a 360.degree. rotation such that it is shortest when the leading edges and the trailing edges are pointed towards the vapor source and longest when the concave and convex flanks are presented to it.

REFERENCES:
patent: 3620815 (1969-03-01), Blechman
patent: 4082870 (1978-04-01), Yenni

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