A kind of manufacturing method of circular flexible honeycomb
A honeycomb and circular technology, which is applied in the field of circular flexible honeycomb production, can solve the problems of difficult production methods, etc., to solve the contradiction between in-plane deformation and out-of-plane load, sufficient in-plane deformation capacity and bending deformation capacity, Easy to make effects
Active Publication Date: 2018-07-24
THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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Problems solved by technology
It is difficult to make round flexible honeycomb by conventional hexagonal honeycomb manufacturing method
Method used
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[0022] The present invention will be further described below through non-limiting examples and in conjunction with the accompanying drawings:
[0023] A method for making a circular flexible honeycomb, such as Figure 1-Figure 3 As shown, the honeycomb is composed of several circular honeycomb units arranged tangentially and orthogonally, including two types of honeycomb units. During production, the honeycomb mold 1, several unit stamping molds 2 and several intermediate stamping molds 6 are used for production. as attached Figure 4-Figure 6 As shown, the honeycomb mold 1 is a box-shaped structure with an open upper end, which is a steel mold. The bottom plate of the honeycomb mold 1 is sequentially arranged with a number of semicircular molds that are tangent and conform to the shape of the circular honeycomb unit. Slot 11, the shape of the unit die 2 is the same as that of the circular honeycomb unit, and the shape of the intermediate die 6 is the same as that of the sta...
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The invention discloses a manufacturing method for a round flexible honeycomb. A honeycomb mold, a plurality of round unit pressing dies and middle star-class pressing dies are adopted for manufacturing, and semicircular die grooves are formed in a bottom plate of the honeycomb mold; and manufacturing is carried out mainly according to following steps: honeycomb paper is cut into paper slips with a certain width; a demoulding agent is painted to the bottom plate of the honeycomb mold; a first layer is subject to double spread through the honeycomb slips; the first layer of honeycomb paper is laid on the bottom plate of the honeycomb mold; demoulding agents are painted to all the unit pressing dies and all the middle pressing dies, and the first layer of honeycomb paper is pressed through the unit pressing dies; the unit pressing dies are taken out in a row-spacing manner; a second layer of double spread honeycomb paper is laid, and in the die grooves with the pressing dies taken out, the second layer of honeycomb paper is pressed through the unit pressing dies; a third layer of double spread honeycomb paper is laid on the upper portion of the first layer of unit pressing dies, and is pressed by the corresponding middle pressing dies; the rest of honeycomb paper is sequentially laid on the upper portions of the middle pressing dies in sequence according to the above steps; and heating treatment and curing treatment are carried out.
Description
technical field [0001] The invention relates to a manufacturing method of a circular flexible honeycomb. Background technique [0002] In the radome, there are often many structures with large curvature. In the case of such large curvature, the ordinary hexagonal honeycomb sandwich structure is still used, which is difficult to resist the large deformation requirements in the production and use. Therefore, it is necessary to use a The honeycomb sandwich structure can produce large deformation in the plane and improve the bearing capacity outside the plane. Under this condition, flexible honeycomb sandwich structures of various structural forms are produced. By designing the structural form and size of the flexible honeycomb, the honeycomb sandwich structure can be realized. In-plane large deformation requirements and out-of-plane high load-bearing requirements. [0003] Studies have shown that the deformability and load-bearing capacity of the honeycomb depend on the geomet...
Claims
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IPC IPC(8): B31D3/00B32B29/00B32B3/12
CPCB31D3/005B32B3/12B32B29/005B32B2307/54
Inventor 曲秀晓李兴德
Owner THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC