Pyrolytic coating technique of gaseous precursor compositions

摘要

The channel (1) provided with a main gas feed system is intended for distributing gas flows on the surface of a glass substrate (2) (such as a floating glass strip) in motion, for purposes of forming a coating on this substrate by a reaction of the pyrolysis/decomposition type. The channel is also provided with an auxiliary autonomous feed system for local modification (in case of need) of the chemical composition of the flows produced by the main feed system.