TECHNICAL SOLUTIONS CONSERVATION PROBLEM FOR AGRICULTURAL MACHINESBY VISCOUS MASTIC WITH HEATING
It known that the use of conservation equipment for applying a protective coating of viscous mastic reduces the time of preparation of agricultural machines for long-term storage.It shown that the performance of conservation equipment and the quality of protective mastic coatings inversely related to its viscosity, which must reduce by heating.Technical solutions for mobile equipment for the preservation of machines with viscous mastic in conditions of open storage areas, providing for heating of mastic in the local chamber of the pressure tank and in the supply hose to the spray gun due to the use of electricity from a 28 V low-voltage generator suggested.Heating mastic from 5 to 40 ° C in a local chamber of 4.5 liters from a low-voltage heating element with a power of 450 W was investigated.It found that the duration of heating for mastics did not exceed 20 minutes, while its dynamic viscosity decreased to a level of 0.18 Pa ∙ s, sufficient for fine spraying.The parameters of the mastic supply hose with a length of 10 m and a diameter of 10 mm, equipped with a heating wire made of steel wire with a length of 11 m, a diameter of 1.2 mm, and a power of 245 W, were determined at which the mastic was heated from 5 to 40 ° C for 20 minutes.These technical solutions recommended implementing as part of mobile conservation equipment. This will reduce by 2 times the time required to enter equipment at a temperature that lowered to 5 ° C.