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Metal honeycomb material used in aerospace and aircraft separation layer, and preparation method thereof

A space vehicle, metal honeycomb technology, applied in the field of metal honeycomb materials and its preparation, can solve the problems of cracking and detachment of metal sheets, low bonding strength, low use temperature, etc., to improve thermal stability and carrying capacity, and improve the production process Efficient and low-cost effect

Inactive Publication Date: 2014-03-05
魏玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing methods of manufacturing metal honeycomb are brazing and gluing, but these methods have the following problems: (1) the bonding strength is not high
Due to the low bonding strength of glue and brazing, the metal sheets inside the metal honeycomb are prone to cracking and detachment
(2) The operating temperature is not high
In the production process, due to the use of viscose and brazing flux, other metal and non-metal components are brought in, which limits the promotion and application of metal honeycomb

Method used

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  • Metal honeycomb material used in aerospace and aircraft separation layer, and preparation method thereof

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Embodiment 1

[0014] The upper and lower panels are made of titanium, and the middle multi-layer metal sheet is made of LY12CZ aviation aluminum alloy.

[0015] Its preparation method:

[0016] (1) The metal honeycomb material includes an upper panel (1), a lower panel (5) and a metal honeycomb interlayer. The interlayer material is common aviation lightweight materials such as aluminum alloy or titanium alloy, and the panel material is heat-resistant aviation materials such as titanium alloy, nickel-based alloy or stainless steel.

[0017] (2) Polish and polish the upper and lower surfaces of the upper panel (1), the lower panel (5) and the plurality of thin metal plates (3) with a grinding wheel and a polishing machine until the surface roughness Ra<6nm.

[0018] (3) Place the lower panel (5) on a flat foundation, put the gap column (2) on it to support the multi-layer thin metal plate (3), and coat the metal plate with a certain width of anti-corrosion at intervals. Solder (4), the rat...

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Abstract

The present invention discloses a metal honeycomb material used in an aerospace and aircraft separation layer, and a preparation method thereof. The metal honeycomb material comprises an upper panel, a lower panel and a metal honeycomb interlayer. The preparation method comprises: material prefabrication, explosion welding, stress annealing, stretch forming and other steps. According to the present invention, the internal of the prepared metal honeycomb does not contain brazing fluxes and other impurities, the bond strength is high, and the material is a novel aerospace material.

Description

technical field [0001] The invention relates to a metal honeycomb material used in the isolation layer of aviation and aerospace vehicles and a preparation method thereof, belonging to the field of aerospace high-performance composite materials. Background technique [0002] Metal honeycomb is a new type of functional composite material with metal skeleton and honeycomb holes (very similar in shape to bee's nest). It is named for its internal structure containing many honeycomb through holes. This material has unique properties: excellent impact resistance, heat resistance and corrosion resistance, electrical conductivity, heat conduction, heat insulation, sound insulation, energy storage, energy absorption and shock absorption, electromagnetic shielding, etc. In recent years, metal honeycomb has been researched, developed and applied in many aspects. Applications have been involved in aerospace, transportation, military industry, electronics, environmental protection, ene...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B3/12B23K20/08B23K20/24
Inventor 段绵俊魏玲高福银陈俊
Owner 魏玲
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