Patent · US Expired

Process for the vacuum coating of metal components

US6589608B2 · kind B2 · utility

1Cited by

3References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Carsten Deus · Dresden, DE
Joachim Senf · Dresden, DE
Lutz Wolkers · Berlin, DE

Key dates

Filing date	Mar 30, 2001
Grant date	Jul 8, 2003
Priority date	—
Expiry date	Apr 4, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C28/345
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A process for producing a homogeneous oxide layer on metal components includes uniformly heating the components, in all their regions, in a vacuum chamber and, after a predetermined temperature has been reached, exposing the components to an oxygen-containing gas for a predetermined period and at a predetermined pressure. The metal components are coated with MCrAlY or PtAl. The preheating temperature is between 750 and 850° C., preferably, approximately 800° C. Preferably, the thickness of the homogeneous oxide layer is between 0.01 and 5 &mgr;m. The heating is preferably by electron radiation. The predetermined period is approximately 10 minutes, and the predetermined pressure is between 1×10−3 and 8×10−2 mbar.

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