Poor EPS molding fusion

The fusion strength between beads in molded products is poor and they easily fall apart. This problem is relatively common in foam molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Temperature parameter aspect: insufficient mold steam pressure making bead surface temperature inadequate; temperature deviation directly affects the physicochemical state and reaction progress of the material. (2) Process time aspect: heating time too short; improper time control causes the reaction or cooling process to fail to meet process requirements, affecting the final performance of the product. (3) Process factor: bead pre-foaming ratio too large and cell walls too thin; this factor affects the '2079851475616104453 and final quality of the product.

(1) Parameter adjustment: increase steam pressure to ensure full plasticization and fusion of bead surfaces; needs to be evaluated in combination with equipment capacity, gradually increase pressure and check product compactness and dimensional changes. (2) Process optimization: extend heating time; determine a reasonable time based on product wall thickness and material characteristics, balancing production efficiency and quality. (3) Formulation adjustment: appropriately reduce the pre-foaming ratio., 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.