Based on the background you previously focused on regarding the wear grading standards and wear degree judgment of temperature sensing blocks in hot runner scenarios, you can accurately determine whether a temperature sensing block has minor wear through three dimensions:
Appearance and Physical Judgment: Only a slight oxide layer and shallow scratches are present on the temperature-sensing contact surface; there are no obvious pits or material peeling, and the metal substrate structure is intact and undamaged.
Temperature Measurement Performance Judgment: Temperature measurement deviation ≤1℃; only a slightly slower temperature response speed; no irregular temperature jumps; accuracy can be quickly restored after routine calibration.
Operating Condition Judgment: The hot runner temperature control system has no abnormal alarms; the quality of injection molded products is stable; and no batch defects caused by temperature deviations have occurred.
If all conditions are met, it can be determined as minor wear, requiring no replacement; simple repairs are sufficient for continued use.
