The heating of the hydraulic system of the small concrete mixer directly affects the normal operation of the mixer. The main hazards caused by the heating phenomenon are as follows:
(1) When the temperature of the working liquid increases, the viscosity of the working liquid decreases, the leakage of the pump increases, and the actual flow of the pump decreases;
(2) The seals of the hydraulic system and components deteriorate under high temperature, and the elastic denaturation ability is reduced, which reduces the sealing performance, even the sealing failure, and increases the leakage;
(3) When the material of valve core and valve body of hydraulic valve is different, and the coefficient of thermal expansion is different, the valve core and valve body are stuck due to thermal expansion, resulting in the small concrete mixer can not work;
(4) When the viscosity of the working fluid decreases, the lubricating performance of the working fluid decreases, the wear of the hydraulic components accelerates, the wear failure of the components is accelerated, and the service life of the components is shortened.
In order to avoid the above phenomena as much as possible, some small concrete mixers have to stop after a certain period of use to cool the system, thus reducing the start-up rate of small concrete mixers and affecting the construction progress. Therefore, corresponding measures should be taken to control the temperature of the hydraulic system and ensure the normal use of the concrete mixer truck according to the heating causes of the system. Come to our website for more relevant content http://www.skar-bnat.com Ask!