When customers use injection molding machines to produce TPE products, temperature control issues can arise. We at Sibo Wang Manufacturer have summarized some tips to troubleshoot these problems:
Common reasons for high temperatures include:

  * Insufficient oil tank volume and cooling capacity
  * Quantitative pump system sized based on rapid feed speeds, excess flow returns through high-pressure relief valve and generates heat
  * Faulty unloading circuit or no unloading circuit, resulting in continuous high pressure overflow and heating when idle
  * Narrow, lengthy, or excessively curved hydraulic circuits creating large local and linear pressure losses
  * Low component precision and quality assembly, causing significant mechanical friction loss
  * Incorrect fit clearance, either too small or excessive wear, leading to high internal and external leakage and decreased volumetric efficiency
  * Excessive operating pressure set higher than needed, possibly due to tight seals or increased seal leakage
  * Higher ambient or operational temperatures causing increased oil temperature
  * Inappropriate viscosity selection, both too high or too low can cause overheating

To address these issues, we recommend:

  * Adjusting the pressure relief valve regularly based on load requirements
  * Selecting appropriate hydraulic fluid and adjusting viscosity where possible to reduce viscous friction
  * Improving lubrication conditions of moving parts to decrease mechanical friction and generate less heat
  * Increasing component and system accuracy, controlling fitting clearances, reducing start-up forces, and adding cooling systems