Why should the plastic granulator control the working temperature of the screw
In the process of using the waste plastic granulator, the machine may have various problems, among which the temperature is too high is a relatively common problem, this article is intended to help you find out the general reason:
Common reasons: 1. The volume of the fuel tank is too small, the heat dissipation area is not enough, and the capacity of the cooling device is too small. 2. In the quantitative pump oil supply system that selects the oil pump capacity according to the fast forward speed, most of the excess flow will overflow from the relief valve under high pressure and generate heat during operation. 3. The unloading circuit of the plastic granulator is faulty or because the unloading circuit is not set, the oil pump cannot be unloaded when it stops working, and the entire flow of the pump overflows under high pressure, resulting in overflow loss and heat, resulting in temperature rise. 4. The fit gap of the fittings is too small, or the gap is too large after use and wear, resulting in large internal and external leakage, resulting in a large volume loss, such as a decrease in the volumetric efficiency of the pump and a rapid temperature rise. 5. The climate and operating environment temperature is high, resulting in an increase in oil temperature. 6. The viscosity of the oil is not selected properly. The viscosity is high and the viscous resistance is large. If the viscosity is too small, the leakage will increase. Both situations can cause heat and temperature rise.
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