Sandwich panel manufacture by joining facing layers to core immediately after core production

摘要

The panel comprises a lightweight core (17) and one or more thin facing layers (20), the latter being joined to the core layer immediately after core manufacture. An Independent claim is made for a sandwich panel in which the core layer (17) is produced from shredded strip material or an endless strip (13'). Preferred Features: A core forming die (10) comprises two or more spaced guide plates with a heater (16) for curing located between the inlet (12) and outlet. Shredded strip material or continuous strip is fed through the die and heat cured to form a core layer.