METHOD FOR BUILDING-UP BARRIER COATING ON SOLDERED ALUMINIUM ELECTRODES OF OZONE GENERATOR Russian patent published in 2018 - IPC C25B11/00 C25B1/00 C25B1/13 C01B13/11 

FIELD: electricity.

SUBSTANCE: invention refers to the method of building up barrier coatings on soldered aluminium electrodes of an ozone generator, including the preparation of the electrode surfaces for soldering, assembly of the structure in an assembly-and-soldering device, aligning the flat surfaces of the electrode due to the directional thermal elongation of the ribs of the heat-exchanging nozzle at a temperature below the solder melting point, soldering, in the process of which under appropriate temperatures they perform metal homogenization and vacuum etching of the electrode surfaces for the subsequent creation of a dielectric barrier on them. The creation of the dielectric barrier in the form of an ordered nano-sized cellular pore structure of aluminium oxide with high dielectric permeability and tangent of an angle of dialectic losses is done by electrochemical method in 3-5% solution of oxalic acid at the anode current density of 2 A/dm², oxidation time of 3 h and temperature of 20-25°C.

EFFECT: improving the quality, reliability and efficiency of the ozone generator in production and operation based on the application of soldered aluminium electrodes with a dielectric barrier coating, formed by electrochemical method, in the synthesis of ozone.

2 cl, 3 dwg