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Integrally formed three-dimensional metal net and production equipment thereof

A three-dimensional, production equipment technology, used in metal processing, coiled strips, electrical components, etc., can solve the problems of inability to do anti-corrosion treatment, complex production processes and equipment, easy to fall off, etc., to achieve rapid and uniform anti-corrosion treatment, enhanced Corrosion resistance, good synchronization matching effect

Pending Publication Date: 2022-01-11
大连泽晟新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, composite materials are insulating materials, and for components exposed to the air for a long time in the working environment, such as aircraft and wind turbine blades, if there is no lightning protection when lightning strikes, it will cause irreversible damage to composite materials, especially in recent years due to carbon fiber composite materials. It has the advantages of light weight, high strength, high modulus, etc., and more and more carbon fibers are used. However, carbon fibers are poor conductors and are more likely to attract lightning, but they cannot transmit lightning in time, and the damage caused is undoubtedly huge. , so lightning protection is required for composite materials; at the same time, there are many metal parts and circuit structures inside the aircraft, and electromagnetic shielding is also required
At present, the metal mesh for lightning protection and electromagnetic shielding on the market has the following problems: (1) The metal mesh with a woven structure is woven from metal wires in the warp and weft directions. If the connection resistance is too large, it will cause instant collapse
(2) Pressed metal mesh, smooth surface, poor adhesion to composite materials, easy to fall off
(3) The finished metal mesh has poor corrosion resistance, and anti-corrosion treatment cannot be done during production
(5) The production process and equipment of metal mesh production are complex and the production efficiency is low

Method used

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  • Integrally formed three-dimensional metal net and production equipment thereof
  • Integrally formed three-dimensional metal net and production equipment thereof
  • Integrally formed three-dimensional metal net and production equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The present invention provides a three-dimensional structure metal mesh 1, the structure schematic diagram is as follows figure 1As shown, the X and Y directions of the metal mesh are formed by the arrangement and combination of diamond-shaped meshes of uniform size, one side in the Z-axis direction has Z-axis protrusions 101 at the intersection of the rhombus, and the other side has a flat surface. The material of the metal mesh can be any one of copper, aluminum, stainless steel and nickel.

[0037] The length of the metal mesh can be customized and processed according to requirements, the width range is 100mm-2000mm, and the thickness range is 0.05mm-1mm.

[0038] The present invention also provides an integrally formed production equipment for the above-mentioned metal mesh. The schematic diagram of the production and processing flow of the metal mesh is as follows: figure 2 As shown, it includes unwinding machine 03, hole cutting and stretching device 04 ( imag...

Embodiment 2

[0046] In Example 2, the production and processing flow of the metal mesh includes an unwinder 3, a hole-cutting and stretching device 4, a deviation correction device 5, a rolling device 6, and a winder 8 in sequence; the metal mesh anticorrosion treatment device 7 is arranged on another on the production line.

[0047] After the metal foil passes through the unwinding machine 3, the hole cutting and stretching device 4, the deviation correction device 5, the rolling device 6, and the winding machine 8, the device operation steps and method steps experienced are the same as those in Example 1, and what is obtained is no anti-corrosion Processed rolled metal mesh 1 .

[0048] Carry out separate anti-corrosion treatment to the metal mesh 1 in another assembly line, such as Figure 6 shown. It includes an unwinding machine 3, an anti-corrosion treatment device 7 and a winding machine 8 in sequence. The unwinding, winding and anti-corrosion treatment method steps are the same ...

Embodiment 3

[0050] In Example 3, the obtained finished metal mesh 1 is compounded with the composite material 9, and the cross-sectional schematic diagram is as follows Figure 7 shown.

[0051] The common method of compounding the metal mesh 1 and the composite material 9 is to lay the metal mesh on the corresponding mold, and lay the fiber cloth on the metal mesh. After demoulding, the metal mesh can be combined with the composite material. The metal mesh can be firmly bonded to the surface of the composite material to protect the composite material.

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Abstract

The invention discloses an integrally formed three-dimensional metal net and production equipment thereof, and belongs to the technical field of metal nets for lightning protection and electromagnetic shielding. The X direction and the Y direction of the metal net are formed by arrangement combination of rhombic meshes with uniform sizes, one side in the Z-axis direction is provided with protrusion structures at the intersection points of the rhombuses, and the other side is flat. Production equipment of the metal net sequentially comprises an unreeling machine, a hole cutting and stretching device, a deviation correcting device, a rolling device, an anti-corrosion treatment device and a winding machine, wherein a metal foil roll is placed on the unreeling machine and treated through a flow device, and the rolled metal net can be obtained on the winding machine. The Z-axis protrusions of the metal net are firmly combined with a composite material, when the metal net is struck by lightning, lightning current can be rapidly dispersed in the X direction, the Y direction and the Z direction, and the lightning protection effect is good. The metal net can be of an integrally formed three-dimensional structure, the synchronous matching performance of the production equipment is good, the production efficiency is high, the metal net can be subjected to anti-corrosion treatment, the service life is long, and the application scene is wide.

Description

technical field [0001] The invention relates to the technical field of metal mesh and metal mesh production, in particular to a metal mesh for lightning strike protection and electromagnetic shielding used in composite materials. Background technique [0002] Composite materials are widely used in all walks of life because of their strong specific strength and specific modulus, good material fatigue resistance, shock absorption and wear resistance, heat resistance and crack resistance. Wings and fuselages, and wind turbine blades for wind turbines. However, composite materials are insulating materials, and for components exposed to the air for a long time in the working environment, such as aircraft and wind turbine blades, if there is no lightning protection when lightning strikes, it will cause irreversible damage to composite materials, especially in recent years due to carbon fiber composite materials. It has the advantages of light weight, high strength, high modulus, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D33/00B26F1/16B65H18/10B65H23/038B65H23/00H05K9/00
CPCB21D33/00B26F1/16B65H18/103B65H23/038B65H23/00H05K9/0086B65H2701/173
Inventor 温禾
Owner 大连泽晟新材料有限公司
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