Demolding expansion (continued foaming after mold opening)

After mold opening, the product volume suddenly increases beyond the mold dimensions. This problem is particularly prominent when the production cycle is fast or the mold temperature is abnormal, and causes product damage in severe cases.

(1) Process factor: internal foaming reaction not yet complete at demolding; this factor affects the '2079851475616104453 and final quality of the product. (2) Mold aspect: residual foaming force expands the product after releasing mold constraint; mold structure or condition directly affects the flow and molding of material in the cavity. (3) Material aspect: fluctuations in raw material performance indicators or insufficient pretreatment affect molding quality. (4) Process aspect: control deviations of key process parameters cause the '2079851475616104453 to deviate from optimal conditions. (5) Equipment aspect: equipment precision and maintenance status affect the stable execution of process parameters.

(1) Process optimization: extend curing time to ensure complete release of foaming reaction gas; determine a reasonable time based on product wall thickness and material characteristics, balancing production efficiency and quality. (2) Formulation adjustment: reduce foaming agent dosage, adjust gradually and verify the effect, ensuring that other performance indicators of the product are not affected. (3) Implementation measures: appropriately increase mold clamping force., formulate specific operation plans based on actual production conditions and verify implementation effects. (4) Preventive measures: formulate a mold maintenance plan and regularly check the release agent coating and mold surface condition.

Demolding problems need to be comprehensively solved from three aspects: mold surface treatment, release agent selection, and curing degree control.