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Ultrathin wide microporous aluminum net for thunder and lightning protection and preparation method thereof

A lightning protection and microporous technology, which is applied in the field of microporous metal mesh, can solve problems such as inability to continue, insufficient strength, edge cracking, etc., and achieve the effect of meeting lightning protection requirements, improving strength and plasticity, and light weight

Pending Publication Date: 2019-03-12
有研金属复材技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its insufficient strength, ordinary aluminum foil materials cannot be continuously produced in the production of wide-width ultra-thin metallic aluminum stretched mesh, and there are phenomena such as broken mesh and edge cracks.

Method used

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  • Ultrathin wide microporous aluminum net for thunder and lightning protection and preparation method thereof
  • Ultrathin wide microporous aluminum net for thunder and lightning protection and preparation method thereof
  • Ultrathin wide microporous aluminum net for thunder and lightning protection and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 2 As shown, an ultra-thin wide-width microporous aluminum mesh for lightning protection, the mesh shape is a rhombus, the material composition and weight percentage are: Sc: 0.1%, Zr: 0.05%, impurity elements Cu, Fe, Mn The total content of Mg, Zn, Cr, Ni, Ti, Si is less than or equal to 0.05%, and the balance is Al. The thickness c of the aluminum mesh is 0.05mm, the width e is 600mm, the length f is greater than 100m, the long pitch a is 1.8mm, and the short pitch b is 0.7mm; the resistance in the long pitch direction is ≤15mΩ / 0.305m, in the short pitch direction Resistance ≤38mΩ / 0.305m.

Embodiment 2

[0020] An ultra-thin and wide-width microporous aluminum mesh for lightning protection. The mesh shape is a rhombus. The material composition and weight percentage are: Sc: 0.1%, Zr: 0.05%, and impurity elements Cu, Fe, Mn, Mg, The total content of Zn, Cr, Ni, Ti, Si is less than or equal to 0.05%, and the balance is Al. The thickness c of the aluminum mesh is 0.1mm, the width e is 1000mm, the length f is greater than 100m, the long pitch a is 2mm, and the short pitch b is 1mm; the resistance in the long pitch direction is ≤15mΩ / 0.305m, and the resistance in the short pitch direction is ≤ 25mΩ / 0.305m.

Embodiment 3

[0022] An ultra-thin and wide-width microporous aluminum mesh for lightning protection. The mesh shape is a rhombus. The material composition and weight percentage are: Sc: 0.1%, Zr: 0.05%, and impurity elements Cu, Fe, Mn, Mg, The total content of Zn, Cr, Ni, Ti, Si is less than or equal to 0.05%, and the balance is Al. The thickness c of the aluminum mesh is 0.13mm, the width e is 1000mm, the length f is greater than 100m, the long pitch a is 2.2mm, the short pitch b is 1.4mm; the resistance in the long pitch direction is ≤10mΩ / 0.305m, in the short pitch direction Resistance ≤15mΩ / 0.305m.

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Abstract

The invention discloses an ultrathin wide microporous aluminum net for thunder and lightning protection and a preparation method thereof and belongs to the technical field of microporous metal nets. The microporous aluminum net comprises, by weight percent, 0.1% to 0.3% of Sc, 0.05% to 0.15% of Zr and the balance Al. The thickness of the microporous aluminum net ranges from 0.05 mm to 0.13 mm, thewidth of the microporous aluminum net ranges from 600 mm to 1000 mm, the length of the microporous aluminum net is larger than 100 m, the long pitch of the microporous aluminum net ranges from 1.8 mmto 2.2 mm, and the short pitch of the microporous aluminum net ranges from 0.7 mm to 1.4 mm. Specifically, the ultrathin wide microporous aluminum net is obtained by carrying out stamping, stretchingand precision bump-cutter machine planishing on an aluminum foil material. The ultrathin wide microporous aluminum net for thunder and lightning protection is good in conductivity, high in strength,high in plasticity and low in mass, and the problem that when a wide ultrathin metal aluminum stretching net is produced in the prior art, net breaking, edge cracking and other continuous conduction failing problems are caused is solved.

Description

Technical field [0001] The invention belongs to the technical field of microporous metal meshes, and particularly relates to an ultra-thin wide-width microporous aluminum mesh for lightning protection and a preparation method thereof. Background technique [0002] In order to improve the flight performance of modern advanced aircraft, a large number of advanced composite materials are used. Composite materials can provide good strength and stiffness characteristics and reduce weight, but their electrical conductivity is not as good as metal materials, and cannot quickly disperse the current and heat of lightning strikes. Therefore, the loss of composite materials from lightning strikes is huge. In order to provide lightning protection for aircraft and other aerospace structural composite materials, metal conductor attachments or metal mesh systems of different structures can be attached to the outer surface of the composite material to provide excellent electrical conductivity an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00B64D45/02B23P15/16
CPCC22C21/00B64D45/02B23P15/16
Inventor 叶章根张永忠梁博刘彦涛
Owner 有研金属复材技术有限公司
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