Vertical honeycomb sandwich plate, preparation method and sandwich plate connecting method

Abstract

The invention discloses a vertical honeycomb sandwich plate, a preparation method and a sandwich plate connecting method. The vertical honeycomb sandwich plate comprises an upper face plate, a lower face plate, an upper glue layer, a lower glue layer, a honeycomb layer arranged between the upper glue layer and the lower glue layer as well as a plurality of upright columns connected with the upperface plate and the lower face plate respectively, wherein honeycomb holes of the honeycomb layer are vertical to the face plates. During preparation, a honeycomb core is arranged in a sleeving mannerafter one ends of the plurality of upright columns are fixedly connected with the lower face plate, the upper face plate is connected and fixed with the other ends of the upright columns, the upper glue layer and the lower glue layer are poured respectively, and the honeycomb sandwich plate is prepared. According to the sandwich plate connecting method, sandwich plates can be connected by arranging overlap edges or adopting solid square tubes. The honeycomb sandwich plate is low in density, light in weight and high in specific strength, specific stiffness, bearing capacity, vibration damping,sound insulation and heat insulation, and bonding strength between the core and the face plates is high; meanwhile, the method is simple, the operability is high, and the cost is low; besides, the connecting strength of the sandwich plates is high.

Description

technical field [0001] The invention belongs to the field of sandwich panels, and in particular relates to a vertical honeycomb sandwich panel, a preparation method and a connection method between the sandwich panels. Background technique [0002] Lightweight construction of structures has always been a hot topic in the field of engineering, especially in the fields of vehicles, ships, and rail transit. Without affecting the strength of the structure itself, reducing its own weight can improve the carrying capacity of the structure, effectively reduce energy consumption, and improve economic performance. . [0003] Marine materials are one of the main reasons that affect the weight of ships. When ships complete the transformation from wooden boats and riveting to welding, marine materials complete the transition process from original wood to steel. The extensive use of steel in ship structures has greatly improved the ship's carrying capacity, but this has also led to a sig...

AI Technical Summary

Problems solved by technology

At present, the core materials of the existing honeycomb sandwich panels are mostly light metals such as aluminum and aluminum alloy materials, and the application types of polymer materials are relatively few. The reason is that the mechanical properties of polymer materials are weaker than those of metal materials, and the construction process is more difficult. In addition, the sound insulation and heat insulation performance of the honeycomb sandwich panel is poor, so solving the above problems is an important guarantee for the large-scale engineering application of the honeycomb sandwich panel

[0005] Existing foam-filled sandwich panels, such as CN201850698U, CN201317133Y and other patents, adopt new core material structures such as aluminum pyramids, and fill them with foam materials, which improves the specific strength and specific stiffness of the structure to a certain extent, but its construction The process is relatively complicated, the aluminum plate needs to be stamped and formed, and after the foam is filled, the bonding strength between the core material and the panel is poor. At the same time, due to the poor heat resistance of the foam structure, the core material and the panel cannot be fixed by welding, which leads to the failure of the panel and the core material. Easy to form defects and cause delamination

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