What is the self-heating effect of hot runner systems?

The self-heating impact of hot runner systems is the additional rise of temperature generated when the hot runner system itself is running, based on the above focus on hot runner temperature collection and wireless module adaption to high-temperature conditions:

Cause The heating coils inside the hot runner constantly produce heat, and the friction heat generated by the melt flow causes the temperature of the runner body to exceed the predetermined value, resulting in an extra self-heating temperature rise.

Impact The self-heating effect can cause local overheating, plastic deterioration, burning of items, and the surrounding acquisition modules are in a high temperature environment for a long time, which can accelerate the aging of hardware.

Solutions: Compensating the temperature variance produced by self-heating effect and maintaining steady hot runner temperature by employing high-precision PID temperature control algorithm to dynamically regulate heating power, and using high-temperature resistant acquisition module.

This is a fundamental operating condition that needs to be precisely managed in the hot runner temperature management process and immediately impacts the quality of product molding.