METHOD FOR MANUFACTURING AN ABRADABLE SEALING ELEMENT, AND ABRADABLE SEALING ELEMENT

• Main Authors: ILLAND, Hubert Jean-Yves, SELEZNEFF, Serge Georges Vladimir, DUDON, Laurent Paul, FRADET, Guillaume
• Format: Patent
• Language: English
• Published: 04.08.2022
• Subjects: BLASTING; CYLINDERS; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PISTONS; SEALINGS; STEAM ENGINES; THERMAL INSULATION IN GENERAL; WEAPONS

The present invention relates to a method for continuously manufacturing an abradable sealing element, this element comprising a support substrate covered by a coating comprising at least two successive layers, each comprising a sublayer of abradable material and a sublayer of erosion-control material. This method is noteworthy in that it comprises the steps consisting in: -a) placing at least one support substrate on a rotary carousel around which are placed at least two thermal spray torches enabling the sublayer of abradable material and that of erosion-control material to be deposited, -b) rotating the carousel so as to bring said support substrate successively opposite one then the other of the two torches and to carry out the deposition of the various sublayers and to repeat this operation so as to obtain said sealing element.