Surface engineering

Restoration and resource enhancement

In cooperation with the E.O. Paton Electric Welding Institute, work is being carried out to restore and extend the service life of a wide range of parts used in mechanical engineering, transport, and other industries using gas-thermal coating methods. Gas thermal spraying methods are characterized by the possibility of obtaining coatings with a wide range of properties (friction and anti-friction, electrical insulation, corrosion, wear, heat and heat resistance) from metals, alloys and ceramics. Both steel or cast iron parts and parts made of light alloys (titanium, aluminum, etc.) can be restored and strengthened.

We have the technical capability to restore and strengthen parts of various types of equipment (including military equipment) in various industries, in particular:

  • distribution and crankshafts;
  • support roller balancers;
  • piston pins;
  • cylinder liners;
  • friction discs;
  • sliding bearings;
  • housing parts;
  • chassis struts, etc.
In addition, there are currently technologies and equipment for:
  • applying electrical insulation coatings to the bearing rings of electric motors, generators, and other similar equipment;
  • applying heat-protective coatings to gas turbine parts (nozzles, combustion chambers, swirlers, heat exchangers, etc.).

Coating materials and spraying methods are selected in each specific case based on the operating conditions of the part or structure, its configuration, and the required layer thickness when comparing the necessary parameters (according to the part drawing) with the parameters achieved in the restoration or strengthening process.


Strengthening and repair of components by thermal spray coatings

Bearing ring of a traction motor with an electrical insulation coating

Atmospheric plasma spraying

Reparation of main landing gear struts of aircraft

Supersonic plasma spraying (replacement of hard chrome plating hardness): up to 80 HRC

Reparation of artillery recoil rods

Flame spraying hardness: up to 60 HRC

Rods of the tank gun aiming mechanism

Electric arc spraying hardness: up to 60 HRC

Friction rings of the clutch system in MT-LB armored tracked vehicles

Electric arc spraying hardness: up to 50 HRC