Uneven Cast Film Thickness

The thickness deviation in the transverse and longitudinal directions of the cast film is too large. This problem is relatively common in casting molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) Process factors: uneven casting die lip gap, this factor affects the product's '2079851475616104453 and final quality. (2) In terms of process speed: casting speed fluctuations, speed parameters affect the synchronization of material flow state and reaction progress. (3) In terms of material state: liquid viscosity fluctuations cause changes in casting amount, abnormal viscosity affects the material's flow filling and impregnation capabilities.

(1) Equipment maintenance: regularly check and adjust the die lip gap to uniformity, formulate a regular inspection and maintenance plan to ensure the equipment is in optimal working condition. (2) Implementation measures: stabilize the feeding speed of the extrusion pump, formulate a specific operation plan based on actual production conditions and verify the implementation effect. (3) Process control: control the material temperature stability to keep the viscosity constant., establish an online monitoring mechanism, set upper and lower parameter limits, and implement alarm management. (4) Preventive measures: establish a complete 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.