Jet filling defect appears in reaction '2079851475616104452 (RIM) foaming

RIM-NY rim products are underfilled or have surface defects. This problem is relatively common in foam molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Pressure parameter aspect: Insufficient impingement pressure of the mixing head leads to insufficient microscopic mixing, resulting in the material being unable to fill fully or in insufficient densification, with product density and bonding strength reduced. (2) Mold aspect: Mold venting design defects, The mold structure or condition directly affects the flow and molding of the material in the cavity. (3) Material aspect: Fluctuations in raw material performance indicators or insufficient pretreatment affect molding quality. (4) Process aspect: Control deviation of key process parameters causes the '2079851475616104453 to deviate from optimal conditions. (5) Equipment aspect: Equipment precision and maintenance status affect the stable execution of process parameters.

(1) Parameter adjustment: Increase the impingement mixing pressure; evaluate in combination with equipment capability, gradually increase pressure, and check product compactness and dimensional changes. (2) Design optimization: Optimize the post-mixer design, Combine process simulation analysis or mold trial verification to continuously iterate and improve the design solution. (3) Formulation optimization: Increase mold venting channels., Determine the optimal addition amount through small-batch tests, and verify the effect on the overall performance of the product. (4) Preventive measure: Establish sound process control standards and a quality inspection system, and regularly review process data for continuous optimization.

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