Method for coating hollow bodies

US6887519B1 · kind B1 · utility

Assignee

• MTU Aero Engines AG · DE

Inventors

• Horst Pillhöffer · Tarp, DE
• Andreas Fritsch · Eggstätt, DE
• Thomas Dautl · Weichs, DE
• Guido Schesny · Birkenfeld, DE

Key dates

• Filing date: Dec 9, 1999
• Grant date: May 3, 2005
• Expiry date: Dec 9, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C24/08
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for coating hollow bodies, in which a powder mixture including a metal donor powder, an inert filler powder and an activator powder including a metal halide is provided, the powder mixture is brought into contact with an inner surface, which is to be coated, of the hollow body and is heated, in which process, in order to increase the internal layer thicknesses, the inert filler powder is provided with a mean particle size which is approximately the same as the mean particle size of the metal donor powder.