Based on the previous focus on the success rate of deep thermocouple repair in hot runner injection molding scenarios, which is affected by the type of fault and only allows for short-term use after repair, a multi-dimensional assessment standard can be used to determine if a thermocouple is suitable for deep repair:
Core Component Condition Assessment: A thermocouple with only localized wire breakage and mild oxidation of the outer sheath, but no large-scale aging and embrittlement of the internal wires, is suitable for deep repair.
Accuracy Loss Assessment: If, after verification, there is only slight drift at localized temperature points and no large-scale inaccuracy across the entire temperature range, repair can be attempted to restore accuracy.
Physical Damage Assessment: If the outer sheath does not have large-scale cracking, the wires are not completely pulverized or broken, and the insulation layer is not completely failed, basic protective performance can be restored after repair.
Usage Scenarios Adaptability Assessment: Deep repair is worth attempting only if the thermocouple is used as a temporary emergency spare part, for non-core temperature measurement points, and not for high-precision mass production scenarios.
If the coupling wire is severely aged or the sheath is extensively damaged, replacing it with a new one is far more reliable than extensive repair.
