Post-expansion caused by insufficient cooling in EPS molding

The product continues to expand and deform after mold opening. This problem is relatively common in foam molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Process time aspect: insufficient in-mold cooling time; improper time control causes the reaction or cooling process to fail to meet process requirements, affecting the final performance of the product. (2) Pressure parameter aspect: residual internal foaming pressure; improper pressure control directly affects the compactness and molding quality of the product. (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 in-mold cooling time and water cooling time; determine a reasonable time based on product wall thickness and material characteristics, balancing production efficiency and quality. (2) Implementation measures: release residual pressure in the mold before mold opening; formulate specific operation plans based on actual production conditions and verify implementation effects. (3) Formulation adjustment: reduce steam heating amount., adjust gradually and verify the effect, ensuring that other performance indicators of the product are not affected. (4) Preventive measures: establish a sound process control standard and quality inspection system, and regularly review process data for continuous optimization.

This problem requires comprehensive analysis from multiple dimensions of materials, processes, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.