Peremit’ko V. Theoretical principles and technological realization of adaptive chassis parts reconditioning of road vehicles.

In the thesis the scientific and technical problem of extending the chassis parts lifetime of the road vehicles on chain track is solved by increasing the durability and quality of the weld metal, increasing restoration productivity and saving in material resources consumption.The studies of chassis parts contact interaction have been carried out, that allowed to find out the influence of particle size distribution of abrasive stream and caterpillar chain tilt on the intensity change and machine wear. The optimum hardness of weld metal is proposed for the different ratio of prevailing abrasive factions, which provides a significant reduction in the details weight loss in their long-term operation.A technology for adaptive reconditioning surfacing of chassis parts has been developed, that can effectively influence on the roller shaping, crystallization and weld metal structure due to external magnetic field controling and by adding the high melting carbides and oxides.The developed technologies, coating materials and equipment elements have been industrially tested and are used in OJSC "EnergoPromSroy" and OJSC "DneproSpetsStroy" for chassis parts reconditioning of road vehicles on chain track.