Verfahren zur Entfernung einer Keramischen Beschichtung von einem Keramischen Beschichteten Metallischen Artikel

Details

Veröffentlichungs-Nr.

EP3708697

Aktenzeichen

EP20157364

Anmeldetag

14. Februar 2020

Veröffentlichung

8. Juni 2022

Erteilung

8. Juni 2022

Rechtsraum

EP

IPC

C23G1/19C23G5/00F01D5/00F01D5/28

Abstract

A method of removing a ceramic coating from a ceramic coated metallic article (100) without damaging the metallic bond coating, the metallic article having a first and second portions, each of the portions comprising a metallic bond coating and a ceramic coating on the metallic bond coating, the ceramic coating on the second portion being less porous than the ceramic coating on the first portion. The method comprises the steps of: a) immersing (102) the ceramic coated metallic article in a caustic solution; b) maintaining (104) the ceramic coated metallic article in the caustic solution at atmospheric pressure for a predetermined time period and at a predetermined temperature; c) removing (106) the ceramic coated metallic article from the caustic solution; d) rinsing (108) the ceramic coated metallic article in water at ambient temperature; e) water jet blasting (118) the first portion of the metallic article to remove the ceramic coating; and f) water jet blasting (120) the second portion of the metallic article to remove the ceramic coating.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien

Fachgebiete