Bridging appears after prepreg lay-up

The prepreg does not fit tightly at mold corners, forming bridging. This problem is relatively common in lamination molding production and requires comprehensive analysis and solution from multiple aspects of material, process, and equipment.

(1) Process factor: Insufficient prepreg tack prevents adhesion at corners, This factor affects the '2079851475616104453 and final quality of the product. (2) Process factor: Corner areas were not fully compacted during lay-up, This factor affects the '2079851475616104453 and final quality of the product. (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) Implementation measure: After prepreg lay-up, compact each corner one by one with a pressure roller or pressure needle, Develop a specific operation plan based on actual production conditions, and verify the implementation effect. (2) Formulation optimization: If necessary, use a hot air gun for local heating to increase flexibility., Determine the optimal addition amount through small-batch tests, and verify the effect on the overall performance of the product. (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.