Improving Multilayer Board Lamination Quality through Organic Parameter Matching
To enhance the quality of multilayer board lamination, a crucial aspect involves the organic matching of lamination parameters, specifically temperature, pressure, and time.
1. Temperature Parameters:
- Melting Temperature: Initiates resin melting at 70°C, crucial for resin flow.
- Curing Temperature: Reaches 160-170°C, marking the resin’s solidification point.
- Heating Rate: Controls temperature rise, affecting resin fluidity, with rates tailored to different PP types.
2. Pressure Parameters:
- Pressure ensures resin fills voids between layers and expels interlayer gases.
- Non-vacuum presses utilize general or two-stage pressurization; vacuum presses employ two-stage or multi-stage pressurization.
- Pressure is determined based on supplier specifications, typically ranging from 15-35kg/cm2.
3. Time Parameters:
- Crucial for lamination timing and gel time control.
- Two-stage and multi-stage lamination requires precise control of main pressure timing.
- Early main pressure can lead to resin extrusion, while late application may cause defects like voids or bubbles.
Conclusion: Achieving optimal multilayer lamination hinges on the organic alignment of “temperature, pressure, and time” parameters. Fine-tuning these parameters based on PP combinations, suppliers, and model characteristics ensures the production of high-quality laminates.
