Manufacture method of paper honeycomb deck

Abstract

The invention relates to a manufacture method of a paper honeycomb deck, comprising the following steps of: 1) pasting one glue film on the upper surface or the lower surface of an upper skin, and pasting a glue film on the upper surface or the lower surface of a lower skin; 2) with the surface of the upper skin with the glue film facing down, fixing the upper skin at the bottom surface of an upper template; and with the surface of the lower skin with the glue film facing up, placing the lower skin on a lower template; 3) placing a paper honeycomb core on the glue film on the lower skin, and supporting the upper template and the upper kin above the paper honeycomb core by a lifting jack, so that the 3-4mm distance is reserved between the upper surface of the paper honeycomb core and the glue film on the upper skin; 4) vacuumizing after packing the whole structure, so that the vacuum degree in the package is from -65 KPa to -55KPa; 5) falling off the upper template and the upper skin by a pressure release lifting jack; 6) carrying out hot press molding on the upper skin, the lower skin and the honeycomb core; and 7) disassembling the upper template and the lifting jack. The heat insulation effect of the paper honeycomb deck obtained by the invention can be obviously improved.

Description

technical field [0001] The invention relates to a cabin board, in particular to a preparation method of a paper honeycomb cabin board with heat insulation performance. Background technique [0002] At present, there are two main heat insulation technologies for paper honeycomb shelter panels. One is to fill the honeycomb core cells of the cabin with insulation materials, and the other is to design the cabin as a double-layered combination of foam and honeycomb. Composite structure. [0003] The principle of the first technology is to reduce the air volume in the cells by filling the honeycomb cells with insulating materials, and cut off the direct contact between the air and the skin, thereby reducing the convection and radiation heat transfer of the air, and the filled heat insulation The material is generally polyurethane foam or fiberglass. In order to ensure the lightweight characteristics of the deck, the filling thickness is generally only one-third of the thickness ...

AI Technical Summary

Problems solved by technology

[0006] (1) The defect of the first technical solution is that the cell size of the paper honeycomb core embedded with foam must be large enough so that the cell wall of the honeycomb can be cut into the foam smoothly, but the mechanical properties and thermal resistance of the paper honeycomb core with large cells are low. It is difficult to meet the strength requirements and thermal insulation performance of the large slabs in the shelter; in addition, the pressure is often high during the process of embedding the honeycomb core with foam, which is prone to insufficient press pressure or the edge of the paper honeycomb core collapses due to excessive pressure, thereby causing The bonding effect in the later stage is not good; the foam inlay process has high requirements on foam, and strict requirements on density, hardness and inlay position, otherwise foam compression and crusting will easily occur after inlay, and the process is difficult to control

[0007] (2) The defect of the second technical solution is that the low-strength foam core occupies a certain thickness, so the overall strength of the deck is low when the total thickness of the deck is constant, which cannot meet the load-bearing requirements; in addition, the composite structure process Complex, with many bonding layers, prone to delamination; because a layer of skin is added in the middle of the interlayer, the weight of the deck is heavy, and it is difficult to achieve the goal of lightweight

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