Procédé et système de protection contre l'oxydation d'un matériau oxydable

• Main Authors: PIKETTY-LEYDIER LAURENCE, ROUSSEAU GERARD, DORVAUX JEAN-MARC
• Format: Patent
• Language: French
• Published: 06.05.1994
• Edition: 5
• Subjects: AEROPLANES; AIRCRAFT; ARTIFICIAL STONE; AVIATION; BLASTING; CEMENTS; CERAMICS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; COSMONAUTICS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HELICOPTERS; JOINTS OR FITTINGS FOR PIPES; LIGHTING; LIME, MAGNESIA; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PIPES; REFRACTORIES; SLAG; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THEIR RELEVANT APPARATUS; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OF NATURAL STONE; VEHICLES OR EQUIPMENT THEREFOR; WEAPONS

Le procédé de l'invention consiste à former un corps perméable aux gaz (1) comportant des pores (28) ouverts, une première surface (2) destinée à être au contact d'un flux gazeux oxydant (4), susceptible d'oxyder le corps et une seconde surface (6) opposée à la première et à injecter un gaz protecteur (8) exempt d'oxygène à travers la seconde surface (6) entraînant des perturbations dans le matériau lui conférant une protection contre l'oxydation. The process of the invention consists in forming a gas-permeable body (1), comprising open pores (28), a first surface (2) intended to be in contact with an oxidising gaseous flow (4) capable of oxidising the body and a second surface (6) opposing the first and in injecting an oxygen-free protective gas (8) through the second surface (6) giving rise to perturbations in the material providing it with a protection against oxidation.