The relationship between the engine operating time when a car is moving at the same distance along a city street with different traffic loads and on a highway is given. On the basis of experimental studies, a justification is given for the need to adjust the oil change frequency depending on the engine operating time.
A technology is proposed for creating heat-protective wear-resistant coatings on the sur-face of CPG parts made of AK12MMgN alloy using galvanoplasma modification of microarc oxidation. For this purpose, a complete three-factor experiment of type 23 was carried out in the form of semi-replicas of coating deposition. The dependences of the thickness, microhardness, wear resistance and porosity of the galvanoplasma coating on the technological parameters of the process have been established. This technology appears to be effective as it reduces fuel consumption by 5-7 % and increases engine power by 8 % while ensuring optimal properties of the heat-shielding layer.
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