METHOD OF GAS-DYNAMIC SPUTTERING OF ANTICORROSION COATING FROM A CORROSION-RESISTANT COMPOSITION ONTO THE SURFACE OF CONTAINER FOR TRANSPORTING AND/OR STORING SPENT NUCLEAR FUEL, MADE FROM HIGH-STRENGTH IRON WITH GLOBULAR GRAPHITE Russian patent published in 2016 - IPC C23C24/04 C23C4/12 G21F5/08 

FIELD: metal processing.

SUBSTANCE: present invention relates to a method of gas-dynamic sputtering of an anticorrosion coating from a corrosion-resistant composition onto the surface of a container for transporting and/or storing spent nuclear fuel, made from high-strength iron with globular graphite, and can be used for coating the cavity of the container, which serves to receive the spent nuclear fuel. Coating is performed by a device for hypersonic metal coating which contains a combustion chamber and sprinkler. Above device is set to the position for coating application; then a wire material is sprayed, its chemical composition equates the chemical composition of corrosion resistant steel; DC voltage is supplied to the wire material and an electric arc is ignited in the said combustion chamber, which is fed with a bhutan-air, or propane-air or bhutan-propane-air mixture. Then the spray material that is in the midst of this mixture is fed through the said spraying nozzle towards the surfaces of the container subject to coating, wherein the said container is evenly rotated around the axis that is geometrically aligned with its longitudinal axis, and at the same time the device for hypersonic metallization is moved along the said lengthwise axis when applying the coating on the side surfaces of the above container or it is moved radially relative to the longitudinal axis when applying the coating on the end surfaces of the said container, wherein the speed of rotation of the latter and the translational movement of the hypersonic metallization device are interdependent.

EFFECT: to apply an anti-corrosion coating on the surfaces of the elements of a container for transporting and/or storing spent nuclear fuel.

8 cl, 2 dwg