SLIDING ELEMENT, IN PARTICULAR PISTON RING, AND METHOD OF SLIDING ELEMENT COATING Russian patent published in 2015 - IPC F16J9/28 C23C14/24 C23C16/34 C23C16/44 

FIELD: machine building.

SUBSTANCE: invention relates to a sliding element, in particular to piston ring, with coating, and also to method of coating application to the sliding element. Piston ring of internal-combustion engine is made out of cast iron or steel, and has wear-resistant coating. Specified coating has thickness from 2 to 40 mcm, and contains adhesive layer out of chrome (12), several alternating layers out of CrN (14) and metal-containing DLC-layers out of -C:H:Me (16), where Me is tungsten, chrome, titanium, germanium or silicon. The adhesive layer out of chrome (12) is applied by evaporation spattering, the alternating layers out of CrN (14) are applied by ion-plasma spattering, and a specified metal-containing DLC-layers are applied by plasma activated chemical vapour deposition (PA-CVD).

EFFECT: sliding element is provided that together with adjoined element complies with the requirements for service life, and power consumption for friction overcoming.

12 cl, 2 dwg, 1 tbl