Glass fiber reinforced laminate shows "glass pattern"

Glass pattern of interwoven fiber bundles visible on the surface. This problem is relatively common in lamination molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Shrinkage control aspect: surface resin content too low or resin shrinkage exposing fiber bundle contours; uneven volume shrinkage causes internal stress and dimensional deviation. (2) Material aspect: fluctuations in raw material performance indicators or insufficient pretreatment affect molding quality. (3) Process aspect: control deviations of key process parameters cause the '2079851475616104453 to deviate from optimal conditions. (4) Equipment aspect: equipment precision and maintenance status affect the stable execution of process parameters.

(1) Formulation optimization: increase surface resin-rich layer; determine the optimal addition amount through small-batch tests, and verify the impact on the comprehensive performance of the product. (2) Material selection: use surface mat or fine-textured cloth as the outermost layer; establish material selection evaluation standards and determine the optimal solution through comparative tests. (3) Process control: control curing shrinkage., establish an online monitoring mechanism, set parameter upper and lower limits and implement alarm management. (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.