Patent · US Active

Method for the pre-treatment of titanium components for the subsequent coating thereof

US8354036B2 · kind B2 · utility

0Cited by

9References

9Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Helena Catalan-Asenjo · Munich, DE
Michael Scheid · The Hague, NL
Josef Linska · Grafing, DE
Matthias Schmidt · Munich, DE

Key dates

Filing date	Nov 14, 2006
Grant date	Jan 15, 2013
Priority date	—
Expiry date	Jun 25, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25D5/38
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method for the pre-treatment of titanium components for the subsequent coating thereof is provided. The method includes at least the following steps: a) etching of the component in an acidic solution containing fluoride and nitric acid (HNO3); b) activation pickling of the etched component in a solution containing at least sodium nitrate (NaNO3) and tetrafluoroboric acid (HBF4); and c) activation of the activation-pickled component in a bath containing acid or in an acidic bath containing nickel.

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