Composite sandwich plate, mold and manufacturing method
A composite material and sandwich panel technology, which is applied in the field of composite materials, can solve the problems of easy breakage, rigidity, and high cost, and achieve the effects of ensuring flatness, improving bonding strength, and enhancing bending resistance
Inactive Publication Date: 2014-03-05
北京中新图锐科技有限公司
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Problems solved by technology
[0003] At present, the production of most composite sandwich panels cannot meet various needs due to the limitation of technology and equipment.
In general, large-scale composite sandwich panels need to connect sandwich panels of different specifications through bolts or embedded metal parts, and there are many problems in performance and use.
Or use modified special equipment to produce, but the cost of input is higher
[0004] At the same time, composite sandwich panel products are composed of two layers of panels and inner cores, and there are defects of degumming or low peel strength between layers
In addition, when the product reaches a certain length, the rigidity of the product still has certain problems, and it is easy to break during production and use. The above phenomenon becomes more serious when the product size is larger, resulting in the performance of the sandwich panel not being fully utilized. , but also affect the safe use of the product
Method used
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Embodiment Construction
[0061] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the present invention, but not to limit the scope of the present invention.
[0062]It should be noted that, for the sake of brevity, the technical details described in the previous embodiments may not be repeated in the later embodiments; No elaboration. However, those skilled in the art should understand that, as long as there is no conflict, the technical details described in one embodiment are also applicable to other embodiments.
[0063] figure 1 is a schematic cross-sectional view of a composite sandwich panel according to a preferred embodiment of the present invention. The composite material sandwich panel includes a panel 1 and a core panel 2, two panels 1 are respectively arranged on the upper surface and the lower surface of the core panel 2, and an adhesive (not shown...
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The invention discloses a composite sandwich plate, a mold and a manufacturing method. The composite sandwich plate comprises a core plate, an upper panel and a lower panel, wherein the core plate comprises enhancement strips in the core plate and a plurality of grooves formed in the upper surface and / or the lower surface of the core plate; the upper panel is arranged on the upper surface of the core plate; the lower panel is arranged on the lower surface of the core plate; the upper panel and the lower panel are stuck to the core plate under a negative pressure state through adhesives; the grooves are parallel to one another; channels with two uncovered ends are formed in the upper surface and / or the lower surface of the core plate. According to the composite sandwich plate, the parallel grooves are formed in the surface of the core plate of the composite sandwich plate, air between the core plate and the panels can be extracted conveniently, and thus the bonding strength between the core plate and the panels is improved; the enhancement strips are arranged in the core plate of the composite sandwich plate, so that the anti-bending capacity of the composite sandwich plate is enhanced.
Description
technical field [0001] The invention belongs to the technical field of composite materials, and relates to a composite material sandwich panel, a mold and a manufacturing method. Background technique [0002] Composite sandwich panels are widely used in many fields such as vehicles, aviation, ships, and construction because of their light weight and high strength mechanical properties. [0003] At present, the production of most composite sandwich panels cannot meet various needs due to the limitation of technology and equipment. In general, large-scale composite sandwich panels need to connect sandwich panels of different specifications through bolts or embedded metal parts, and there are many problems in performance and use. Or adopt modified special equipment to produce, but the cost of input is higher. [0004] At the same time, composite sandwich panel products are composed of two layers of panels and inner cores, and there are defects of degumming or low peel strengt...
Claims
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Inventor 奚国防李璐丁晓彬
Owner 北京中新图锐科技有限公司