Patent · US Expired

Method for vapor-coating turbine buckets

US4233342A · kind A · utility

6Cited by

2References

5Claims

0Family size

Assignee

Leybold-Heraeus GmbH · DE

Inventors

Hans Aichert · Hanau, DE
Walter Dietrich · Yorktown Heights, US
Otto-Horst Hoffmann · Rodenbach, DE
Friedrich Stark · Langenselbold, DE
Herbert Stephan · Bruchköbel, DE

Key dates

Filing date	Nov 21, 1978
Grant date	Nov 11, 1980
Priority date	—
Expiry date	Nov 21, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49336
WIPO fieldSurface technology, coating
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.