Properly Cool The Pre-insulating Bushing To Room Temperature Before Proceeding To The Next Step.

pre insulated sleeve After high-temperature heat shrinkage, the inner insulation material and outer sheath are at a relatively high temperature. Immediately proceeding with further processing under these conditions may cause uneven localized thermal expansion and contraction rates within the material, potentially leading to the initiation of microcracks or a decrease in the bonding performance of the interface layers. Therefore, sufficient time should be allowed on-site to allow the product to slowly return to a temperature consistent with the surrounding environment.

Observing the temperature change to room temperature is beneficial for the dimensional stabilization of pre insulated junction sleeve. insulated joint sleeve has relatively high internal stress initially, as the material's thermal response continues. The gradual temperature reduction process allows the internal structure of the material to adjust layer by layer, achieving self-equilibrium of the temperature and stress fields.