Patent · US Active

Cr(VI)-free corrosion protection layers or adhesion promoter layers produced using a solution comprising phosphate ions and metal powder, wherein the metal powder is coated at least partly with Si or Si alloys

US9822258B2 · kind B2 · utility

0Cited by

12References

20Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Martin Stapel · Munich, DE
Natividad Lopez Lavernia · Munich, DE
Max Niegl · Munich, DE
Max Morant · Aschau, DE

Key dates

Filing date	Mar 13, 2013
Grant date	Nov 21, 2017
Priority date	—
Expiry date	Jul 17, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/95
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a coating material for the production of an anti-corrosion and/or adhesion promoter layer, which material comprises metal powder and a phosphate-ion-containing solution as the binder, the metal powder being at least partially coated with Si or Si alloys or the binder consisting of phosphoric acid and metal phosphates and being substantially free of chromates. The invention further relates to a method for producing an anti-corrosion and/or adhesion promoter layer, comprising the following steps: Providing a coating material, such as indicated above, applying the coating material to a component surface on which the anti-corrosion and/or adhesion promoter layer is to be created, and drying and/or hardening by way of a heat treatment at a first temperature.

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