CN209566577U - A kind of honeycomb core material - Google Patents

Abstract

The utility model discloses a kind of honeycomb core material, the honeycomb cell of honeycomb core material is made of honeycomb sandwich layer, and each honeycomb sandwich layer includes at least materials at two layers again.Honeycomb sandwich layer is fixedly connected between each other.It is bonded or welds between honeycomb sandwich layer.Each honeycomb sandwich layer is at least two layers.Honeycomb sandwich layer is divided into body layer and enhancement layer, the half of the centre distance of layer surface adjacent bonding or weld based on the centre distance of enhancing layer surface adjacent bonding or weld.Honeycomb cell is hexagonal structure or close to hexagonal structure.The material of honeycomb sandwich layer with a thickness of 0.02mm~0.2mm.The material of the honeycomb sandwich layer of honeycomb cell is metal foil or paper or plastics.The honeycomb core material realizes the effect for improving honeycomb core material intensity, and reducing leads to a possibility that tearing, destroying at honeycomb sandwich layer bonding location because drawing force is excessive in process.

Description

A kind of honeycomb core material

Technical field

The utility model relates to pass through the hole trellis product more particularly to a kind of honeycomb core material of drawing and forming.

Background technique

Honeycomb has biggish strength-weight ratio, the requirement of larger intensity can be met with lesser section, and can Significantly reduce the self weight of structural body itself.Therefore, honeycomb has that structural stability is good, impact resistance and cushioning performance is good Advantage.In sandwich structure part, largely use honeycomb core material as sandwich material.In a vehicle, using honeycomb Buffer or bumper on as absorb impact structure have preferable performance.

In the prior art, production honeycomb structure generallys use pulling method (also referred to as development method) due to by moulding process, The especially limitation of drawing process, and it is difficult to produce flat compressed intensity in the honeycomb core material of 15MPa or more.

In the prior art, the core wall of all honeycomb cores is single layer structure, when needing the biggish bee of flat compressed intensity When nest core material, thicker material is used to manufacture often to obtain the biggish honeycomb core material of intensity, but when stretching, because of bonding The limitation of intensity or weld strength, just will appear the problems such as coming unglued, snap or tearing when drawing force is excessive causes to stretch failure.

It can be seen that honeycomb core material flat compressed intensity in the prior art is difficult to further increase, meet higher intensity It is required that using.

Utility model content

In view of this, the main purpose of the utility model is to provide one kind can be improved honeycomb core material intensity, reduces and draw The honeycomb core material of bonding or welding position tearing probability when being stretched into type.

In order to achieve the above objectives, the technical solution of the utility model is achieved in that

A kind of honeycomb core material, the core wall of each honeycomb cell of honeycomb core material include at least two layers.

Honeycomb core material includes multiple honeycomb sandwich layers, and the honeycomb sandwich layer is fixedly connected between each other.

It is bonded or welds between the honeycomb sandwich layer.

The material thickness of the honeycomb sandwich layer is 0.02mm~0.2mm.

The honeycomb cell is hexagonal structure or close to hexagonal structure.

The hexagonal structure or close to hexagonal structure side length be 1mm~10mm.

The hexagonal structure or close to hexagonal structure preferred side length be 1.5mm.

The core wall of honeycomb cell is two layers.

Honeycomb sandwich layer is divided into body layer and enhancement layer, and the adjacent bonding of the enhancing layer surface or weld centre distance are The half of the adjacent bonding of main body layer surface or the centre distance of weld.The core wall material of the honeycomb cell is gold Belong to foil or paper or plastics.

The honeycomb core material of the utility model, has the following beneficial effects:

The core wall of each honeycomb cell of the honeycomb core material includes at least two layers, realizes the work for improving honeycomb core material intensity With reduce causes the tearing of the honeycomb cell place of being bonded or welded broken when needing drawing and forming in process because drawing force is excessive Bad a possibility that.It avoids in the prior art, the core wall of honeycomb cell is single layer structure, in order to improve the carrying of honeycomb core material Ability, can only be by increasing core wall thickness；But core wall thickness increases, in order to complete stretching process, it is desirable to provide biggish drawing Stretch, however drawing force increases, the bonding location between honeycomb sandwich layer just will appear tearing, reduce yield rate.

Detailed description of the invention

Fig. 1 is each layer honeycomb sandwich layer welding or bonding location knot of the honeycomb core material when not pulling open molding in the prior art Structure schematic diagram；

Fig. 2 is each layer honeycomb sandwich layer bonding of the honeycomb core material when not pulling open molding or when welded condition in the prior art Structural schematic diagram；

Fig. 3 is the structural schematic diagram in the honeycomb sandwich layer drawing process of honeycomb core material in the prior art；

Fig. 4 is the cross section view of honeycomb core material in the prior art；

Fig. 5 is that each layer honeycomb sandwich layer according to an embodiment of the present disclosure honeycomb core material when not pulling open molding welds Or bonding location structural schematic diagram；

Fig. 6 is that each layer honeycomb sandwich layer according to an embodiment of the present disclosure honeycomb core material when not pulling open molding is bonded Or structural schematic diagram when welded condition；

Fig. 7 is according to the structural representation in the honeycomb sandwich layer drawing process of an embodiment of the present disclosure honeycomb core material Figure；

Fig. 8 is the cross section view according to an embodiment of the present disclosure honeycomb core material；

Fig. 9 is the bonding or weld schematic diagram according to the body layer of an embodiment of the present disclosure honeycomb core material；

Figure 10 is the bonding or weld schematic diagram according to the enhancement layer of an embodiment of the present disclosure honeycomb core material.

[primary clustering symbol description]

1, honeycomb cell, 2, honeycomb sandwich layer, 21, body layer, 22, enhancement layer, 3, bonding or weld.

Specific embodiment

With reference to the accompanying drawing and the embodiments of the present invention the honeycomb core material of the utility model is made it is further details of Explanation.

As shown in Figure 1 to 4, the honeycomb core cell of the prior art, all honeycomb sandwich layers 2 are single layer structure, honeycomb The adjacent bonding in 2 surface of sandwich layer or 3 centre distance of weld are adhesive strip or four times or so (i.e. honeycombs for welding a width The strip bonding agent of 2 surface of sandwich layer attachment or the centre distance of welding compound are adhesive strip or four times of left sides for welding a width It is right), bonding or weld 3 between adjacent two layers honeycomb sandwich layer 2 are staggered.Every layer of honeycomb sandwich layer 2 is single layer structure.

As shown in Fig. 5~Fig. 8, the utility model discloses honeycomb core material, the core of each honeycomb cell 1 of the honeycomb core material Wall includes at least two layers.Realize improve honeycomb core material intensity effect, reduce when needing drawing and forming in process because Drawing force is excessive and honeycomb cell is caused to be bonded or welded a possibility that locating tear failure.It avoids in the prior art, honeycomb hole The core wall of lattice is single layer structure, can only be by increasing core wall thickness in order to improve the bearing capacity of honeycomb core material；But core wall Thickness increases, in order to complete stretching process, it is desirable to provide biggish drawing force, however drawing force increases, in the company of honeycomb sandwich layer Position is connect, just will appear tearing, destroy, reduce yield rate.

In order to meet different honeycomb core material volume size requirements, and satisfaction to honeycomb core material convenient processing and manufacture, honeycomb Core material includes multiple honeycomb sandwich layers 2, and honeycomb sandwich layer 2 is fixedly connected between each other.

In order to reduce manufacturing procedure difficulty, facilitates the manufacturing, be bonded or weld between honeycomb sandwich layer 2.When using viscous When connecing, bonding agent can be the aluminum honeycomb core material binder of epoxy-modified phenol formaldehyde-rubber type.When using welding, welding Agent can be soldering flux.

In order to avoid honeycomb sandwich layer 2 is blocked up, the drawing force needed is excessive；Or honeycomb sandwich layer 2 is excessively thin, honeycomb core material carrying The too small defect of power, the material thickness of honeycomb sandwich layer 2 are selected as 0.02mm~0.2mm.Preferably, the material of honeycomb sandwich layer 2 is thick Degree is 0.05mm.

In order to facilitate drawing and forming, also have the advantages that preferable load-bearing capacity and buffer capacity, bee using honeycomb Socket bore lattice 1 are hexagonal structure or close to hexagonal structure.

In order to facilitate drawing and forming, avoid honeycomb side length too small, in drawing process, deformed region is too small, is bonded or welded Area is too small to be easy to tear destruction, is unfavorable for forming；Or honeycomb side length is excessive, cellular densities are too small, bearing capacity again excessively Small defect, hexagonal structure or the side length close to hexagonal structure are selected as 1mm~10mm.Preferably, hexagonal structure Or close to hexagonal structure side length be 1.5mm.

In order to avoid the number of plies is excessive, process is tedious and bonding location is easy to happen tearing, it is preferred that honeycomb cell Core wall is two layers.Every layer of honeycomb sandwich layer 2 divides for body layer 21 and enhancement layer 22, the bonding of the body layer 21 of adjacent cell sandwich layer or Person's weld 3 is staggered, and enhancement layer 22 is aligned setting with the bonding or weld 3 of body layer 21.Enhance layer surface bonding The either half of layer surface bonding or the centre distance of weld based on the centre distance of weld.Usually bonding or The width of person's weld 3 is close with the side length of the honeycomb cell 1.

In order to meet the needs of different applicable situations, the core wall material of honeycomb cell 1 can for metal foil or paper or Person's plastics.It is also possible to the materials such as aramid fiber, carbon fiber, glass fibre.

As shown in the table, by taking the aluminum honeycomb core material of side length 1.5mm as an example, the bee of flat compressed intensity 15MPa in order to obtain Nest core material, using the comparison of the drawing force of the multilayered structure of previous single layer structure and the utility model, it will thus be seen that same When flat compressed intensity, double-layer structure is easier successfully to be pulled open.

The manufacturing method of the honeycomb core material, includes the following steps:

S1, bonding or weld 3 and non-adhesive or weld are divided in body layer 21 and 22 surface of enhancement layer；It is described The adjacent bonding in 21 surface of body layer or the centre distance of weld 3 are the adjacent bonding in 22 surface of enhancement layer or weld Two times or so of 3 centre distance；The usually width of bonding or weld 3 is close with the side length of the honeycomb cell 1；

S2, print glue or print solder are applied in 21 surface of body layer bonding or weld 3；22 surface of enhancement layer bonding or Person's weld 3 applies print glue or print solder；

S3, at least one layer of enhancement layer 22 is set between adjacent body layer 21, by the bonding of enhancement layer 22 or weld 3 Overlapping is aligned with the bonding or weld 3 of body layer 21；The bonding or weld 3 of adjacent body layer 21 are overlapping；

S4, by stretching-machine stretch, perpendicular to 21 surface of body layer apply drawing force, body layer 21 non-adhesive or Weld forms hexagon or the honeycomb cell 1 close to hexagon.

In the step S3, one layer of enhancement layer 22 is set between adjacent body layer 21.

Shown in Fig. 9, based on 21 surface of layer bonding perhaps 3 spacing D of weld be the width for printing glue or solder, C is to print The spacing of glue or solder, C are about 4 times of D or so；

It is that perhaps 3 spacing D of weld is the width for printing glue or solder, C/2 to 22 surface of enhancement layer bonding shown in Figure 10 For the spacing of print glue or solder, C is about 2 times of C/2 or so.

The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model Range.

Claims (9)

1. a kind of honeycomb core material, which is characterized in that the core wall of each honeycomb cell (1) of honeycomb core material includes at least two layers, institute Stating honeycomb core material includes multiple honeycomb sandwich layers (2), and the honeycomb sandwich layer (2) is fixedly connected between each other；The honeycomb sandwich layer point Based on layer and enhancement layer, at least one layer of enhancement layer is set between the adjacent body layer.

2. honeycomb core material according to claim 1, which is characterized in that be bonded or weld between the honeycomb sandwich layer (2).

3. honeycomb core material according to claim 2, which is characterized in that the material thickness of the honeycomb sandwich layer (2) is 0.02mm~0.2mm.

4. honeycomb core material according to claim 1, which is characterized in that the honeycomb cell (1) be hexagonal structure or Close to hexagonal structure.

5. honeycomb core material according to claim 4, which is characterized in that the hexagonal structure or close to hexagonal structure Side length be 1mm~10mm.

6. honeycomb core material according to claim 5, which is characterized in that the hexagonal structure or close to hexagonal structure Side length be 1.5mm.

7. honeycomb core material according to claim 1, which is characterized in that the core wall of honeycomb cell (1) is two layers.

8. honeycomb core material according to claim 7, which is characterized in that the adjacent bonding in enhancement layer (22) surface or weldering Connect the half of the centre distance of layer (21) surface based on place (3) centre distance adjacent bonding or weld (3).

9. described in any item honeycomb core materials according to claim 1~2, which is characterized in that the core wall material of the honeycomb cell (1) Material is metal foil or paper or plastics.