A kind of preparation method of seamless splicing honeycomb core material

A technology of honeycomb core material and seamless splicing, which is applied in the field of honeycomb manufacturing, can solve the problems of excessively thick honeycomb glued edges, affecting noise reduction and wave absorption performance, etc., so as to improve the overall appearance and avoid the decline of overall performance, and the method is simple and easy to implement. Effect

Active Publication Date: 2019-05-21
AVIC BASIC TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will cause the honeycomb glue to be too thick. For functional honeycomb materials used in the fields of noise reduction and wave absorption, the glued edge formed by foam glue will seriously affect the sound deadening and wave absorption of the overall structure. performance

Method used

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  • A kind of preparation method of seamless splicing honeycomb core material
  • A kind of preparation method of seamless splicing honeycomb core material
  • A kind of preparation method of seamless splicing honeycomb core material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Select a glass cloth honeycomb with a cell side length of 2mm;

[0046] (2) Epoxy core strip glue is selected as the node glue material, the grade of the node glue is J-80B epoxy resin (product of Heilongjiang Petrochemical Institute), and ethyl acetate is used as a solvent to prepare a node glue solution with a concentration of 10%;

[0047] (3) The honeycomb core material to be spliced ​​is trimmed along the W direction to obtain the spliced ​​edge 2a in the W direction (such as figure 1 ), the splicing edge length is 1.6mm;

[0048] (4) The prepared node glue solution is coated on the W-to-splice edge 2a of the spliced ​​honeycomb respectively to obtain the coated node glue W-to-splice edge 3a (such as Figure 4 );

[0049] (5) Use the geometric characteristics of the honeycomb cell to complete the embedded splicing of the splicing edge, and use the metal wire 6 to fix it along the direction perpendicular to the coated node glue W to the splicing edge 3a, so th...

Embodiment 2

[0053] (1) Its main difference with embodiment 1 is, select the plant fiber honeycomb that cell side length is 10mm;

[0054] (2) The inner wall of the honeycomb core material to be spliced ​​is trimmed along the L direction to obtain the spliced ​​edge 2b in the L direction (such as figure 2 ), the splicing side length is 9.5mm;

[0055] (3) The prepared node glue solution is coated on the L-to-splice edge 2b of the spliced ​​honeycomb respectively to obtain the coated node glue L-to-splice edge 3b (such as Figure 5 );

[0056] (4) Use the geometric characteristics of the honeycomb cell to complete the embedded splicing of the splicing edge, and use the metal wire 6 to fix it along the direction perpendicular to the coated node glue L to the splicing edge 3b, so that after sticking, the L will seamlessly splice edge 4b tight fit (such as Figure 8 );

[0057] (5) According to the requirements of the instruction manual of epoxy resin J-80B, the temperature is raised to t...

Embodiment 3

[0060] (1) Its main difference with embodiment 1 and embodiment 2 is that the selection cell side length is 5mm aramid paper honeycomb;

[0061] (2) the honeycomb core material to be spliced ​​carries out inwall trimming along W and L, obtains W and L to splicing edge 2a, 2b (as image 3 ), the splicing side length is 4mm;

[0062] (3) the joint glue liquid of preparation is coated on the W of splicing honeycomb and L to splicing edge 2a, 2b respectively, obtains coating node glue W and L to splicing edge 3a, 3b (such as Figure 6 );

[0063] (4) Use the geometric characteristics of the honeycomb cell to complete the embedded splicing of the splicing edge, and use the metal wire 6 to fix along the direction perpendicular to the coated node glue W and L to the splicing edge 3a, 3b, so that after sticking W and L Closely fit to the seamless splicing edge 4a, 4b (such as Figure 9 );

[0064] (5) According to the requirements of the instruction manual of epoxy resin J-80B, th...

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Abstract

The invention belongs to a honeycomb preparation technique, and relates to a preparation method of honeycomb core materials for seamless splicing. According to the method, nonmetal honeycombs, which are same in material and size, are selected to be spliced, and edge cutting treatment is conducted on spliced edges of the honeycombs; then, notch pre-treatment is conducted on the honeycombs to be spliced along splicing lines separately to make the inner walls, at the spliced edges, of the honeycombs remain in an open state, and the inner sides of the spliced edges of the honeycomb notches are coated with node glue; the openings at the two ends of each spliced edge are embedded and spliced, the notches coated with the node glue at the two ends are bonded with each other to form an integral honeycomb grid at a spliced place, and the spliced edges are fixedly pasted by metal wires; finally, the honeycombs after splicing are put into an oasthouse for heating treatment, after solidification iscompleted, the honeycombs are cooled to the room temperature, the metal wires are removed, and seamless solidification of the spliced edges of the notches coated with the glue is finished. Through utilization of grid features of the honeycomb core materials, the spliced notches are designed, and under the cooperation of a fixing effect of the metal wires, seamless bonding and splicing of the honeycomb core materials are completed; the integral continuity of the spliced honeycombs is maintained to the maximum degree.

Description

technical field [0001] The invention belongs to honeycomb manufacturing technology, and relates to a preparation method of seamlessly splicing honeycomb core materials. Background technique [0002] At present, the splicing technology of honeycomb core materials is realized by directly bonding several pieces of honeycomb edges with foam glue. However, this method will cause the honeycomb glue to be too thick. For functional honeycomb materials used in the fields of noise reduction and wave absorption, the glued edge formed by foam glue will seriously affect the sound deadening and wave absorption of the overall structure. performance. Contents of the invention [0003] The object of the present invention is to propose a method for preparing a seamlessly spliced ​​honeycomb core material in view of the deficiencies of the above-mentioned prior art. [0004] Technical solution of the present invention is: [0005] (1) Select the non-metallic honeycomb of the same material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31D3/02B29C65/48B29L31/60
Inventor 史湘宁纪双英郝巍许健翔王芙蓉
Owner AVIC BASIC TECH RES INST
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