Based on your previous focus on the criteria for judging slight wear of temperature sensors in hot runner scenarios and the related background of graded repair, slightly worn temperature sensors do not need immediate replacement. The replacement cycle after repair depends on the operating conditions: Under normal non-corrosive injection molding conditions, after sanding and applying thermal grease, it can operate stably for 1-2 years before considering replacement; Under conditions involving glass fiber or weakly corrosive engineering plastics, calibration should be performed every 3 months after repair, and replacement is recommended after a cumulative operation of 6-12 months to avoid sudden performance degradation.
As long as the temperature measurement accuracy remains stable and meets standards during regular inspections, there is no need for premature replacement, maximizing the lifespan of the component.
