THE USE OF CUMNCO BRAZING ALLOY FOR THE FORMATION OF AN ADHESIVE LAYER, LAYERED COMPOSITE COATING (CUMNCO-TINIZR) BY HIGH-SPEED FLAME SPRAYING WITH FINISHING HIGH FREQUENCY CURRENTS (HFC) TREATMENT COATING (CUMNCO-TINIZR)-SUBSTRATE (ST45) TO INCREASE ADHE

The article takes into account the technological structure according to the structure of the formation of composite coating layers on the substrate surface, consisting of an adhesive layer, which is a CuMnCo solder, and an essentially functional layer based on alloys with thermoelastic alloys of TiNiZr compounds, using high-speed flame spraying technologies. Warehousing by processing the substrate with a composite coating with high-frequency currents (HFC), thin heating of the coating and the surface of parts to the melting temperature of the CuMnCo adhesive layer (T = 1030˚C). results of studying the structure and results of elemental analysis of a substrate with a layered composite coating in three zones: substrate; adhesive layer; functional layer after HFC processing. The structure of the interface between the layers and the adhesion line of the coating/substrate, as well as the line of destruction as a result of a combination of their residual traces after HFC treatment. Purpose is to justify the use of a high-temperature solder composition for adhesion between the substrate and the dense coating thickness. Methodology of the work contains according to the technology of soldering ceramic plates on the body of the cutter, there was a cosmetic solder composition as an adhesive layer on the experimental sample, after some thin sample was treated with HFC. Results. Recommendations on the selection of the composition of the solder and the technology of application and processing of HFC for the adhesive layer for various materials of the substrate and the functional layer and coating were present. Practical implications. Technology is an increased adhesive strength of surfaces with parts, which in turn expands the scope of the thermal spraying technology and can be applied to its type.