Development history of sandwich panel

The sandwich panel was successfully researched by the United States in the late 1960s. At that time, sandwich panel was mainly used for aircraft manufacturing, and then gradually expanded to architectural decoration such as segmentation, door leaf, floor, and furniture parts, refrigerator shells, etc. , As a result, its scope of use is expanding day by day, and it is an important lightweight and high-strength material. The most commonly used in China is the paper honeycomb structure sandwich panel, referred to as paper honeycomb panel.