Double-wall structure appears in slush-molded products

Two wall layers with a gap in between appear locally in the product. This problem is relatively common in casting molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Temperature parameter aspect: Insufficient temperature between the first gel layer and the second gel layer produces delamination, Temperature deviation directly affects the physicochemical state of the material and the reaction progress. (2) Mold aspect: The gel layer falls off and re-adheres during mold rotation, 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) Design optimization: Optimize the time interval between the two gelling steps and the mold temperature, Combine process simulation analysis or mold trial verification to continuously iterate and improve the design solution. (2) Implementation measure: Ensure the gel layer adheres firmly., Develop a specific operation plan based on actual production conditions, and verify the implementation effect. (3) Process optimization: Determine the optimal process parameter window through systematic tests and establish standardized operating procedures. (4) Quality control: Strengthen process monitoring and product inspection, Establish a defect early-warning and traceability mechanism. (5) 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.