What are the hazards of heating the hydraulic system of a concrete pump truck?

  Concrete pump truck is currently used by many construction units in the delivery of concrete, because of high delivery efficiency, so welcomed by the majority of the construction side. The hydraulic system is a very important part of the whole concrete pump truck, which affects the quality of the whole construction. So once the concrete pump truck hydraulic system once the occurrence of heat will have what harm? This is the vast number of construction side are very concerned about a problem.

  With the prolongation of the service time, the heating of hydraulic system of concrete pump truck may occur. Once such a situation, minor cases may lead to pump leakage, serious cases may lead to the concrete pump truck can not work, affect the life of the whole concrete pump truck. In particular, the concrete pump truck hydraulic system heating hazards in the following aspects:

  1. With the increase of working time of concrete pump truck, the temperature of working liquid will increase, which will lead to the decrease of viscosity of working liquid and the increase of leakage of the final pump, so the actual flow rate of the pump will also decrease.
 2. The sealing parts of hydraulic system and components deteriorate at high temperature, so the elastic denaturation ability decreases, and finally the sealing performance decreases, which makes the sealing failure and the leakage increases
  3. When the hydraulic system heating, if the hydraulic valve spool, valve body material is different, make the final Coefficient of thermal expansion different, will lead to spool, valve body because of thermal expansion between the phenomenon of spool jam, finally, the concrete pump truck can not work, affecting the entire construction schedule of the project.

  4. When the viscosity of the working fluid decreases, the lubricity of the working fluid decreases and the wear of the hydraulic components accelerates, which shortens the service life of the components.

  Believe that we have a concrete pump truck hydraulic system heating what harm has a certain understanding.