ETR-8300
Out1 Out2
Alm1 Alm2
5 5 Heat-Cool Control
5 5 Heat-Cool Control
An injection mold requires a constant 120 °C to ensure a consistent quality
throughout the parts. An oil pipe is buried in the mold. Since plastics are
injected at higher temperature ( e.g. 250 °C ), the circulation oil needs to be
cooled as its temperature rises. Here is an example:
An injection mold requires a constant 120 °C to ensure a consistent quality
throughout the parts. An oil pipe is buried in the mold. Since plastics are
injected at higher temperature ( e.g. 250 °C ), the circulation oil needs to be
cooled as its temperature rises. Here is an example:
Plastics
Oil
Pump
Oil
Pump
Oil Tank
Oil Tank
Heater
Supply
Heater
Supply
Freezer
4-20 mA
4-20 mA
OUT2
RTD
OUT1
IN1
Figure 5.7
Figure 5.7
Heat-Cool Control Example
Heat-Cool Control Example
Injection Mold
120 C
Injection Mold
120 C
88