Presently constructors use peristaltic concrete pumps for wet shotcreting processes or for transferring the building mixes to the place of their deposit. Fitting the flexible-hose concrete pump with a hydraulic drive allows both making the range of its operating modes much broader and enhancing its reliability. Numerically simulated models of the building mixes feeding processes were developed to design a hydraulic drive to fit the general-service flexible-hose concrete pump and to calculate its basic parameters. Simulation of the building mixes feeding processes gave the characteristic curves of the concrete pump operating parameters, determined the time of ramping the concrete pump up to the steady running mode, and estimated the impact of the transferred mix density and viscosity to the maximal system pressure, supplied power and torque values.
The basic dependences of reinforcement processes are examined. The order of quality assessment of the processed surface and results of metallographic examinations of the reinforced samples are given.
The basics of parts surfaces’ hardening are given. Basic dependences of hardening are presented. Sequential determination of surface quality is given, metallurgical studies of hardened samples are carried out.
Sequence of wear calculation for basic parts of production machinery and their permissible values is presented. The models allowing to determine the specific value of permissible parameters tolerances are given.
Basic facts on the dependency of precision parameters of repair and technological equipment are given. Process of knot loading and its performances in stressedly-deformed state obtained as the results of investigation are described with a view to forecasting.
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