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Method for formation of metal coating film, and aerospace structure member

A technology for aerospace and structural components, which is applied in the direction of pressure inorganic powder coating, etc., can solve the problems of inability to bond copper foil, poor adhesion, and difficulty in realization, and achieve the effect of inhibiting cracking

Inactive Publication Date: 2011-06-08
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned method of simultaneously heating and adhering the copper foil on the surface of the resin-based composite material has poor adhesion because resins with different thermal expansion coefficients are bonded to the copper foil, and the copper foil cannot be bonded on the surface of the resin-based composite material in a large area.
In addition, the operation of bonding thin copper foil on the surface of resin-based composite materials also has problems that are technically difficult to achieve

Method used

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  • Method for formation of metal coating film, and aerospace structure member
  • Method for formation of metal coating film, and aerospace structure member
  • Method for formation of metal coating film, and aerospace structure member

Examples

Experimental program
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Effect test

Embodiment 1

[0044] In Example 1 and Example 2 (dendritic shape), and Example 3 (flaky shape), a film having a film thickness of 0.5 μm or more can be formed at a rate of 5 μm / sec. In particular, in Example 1 and Example 2, a metal film of 1.5 to 1.6 mm can be formed. The higher the heater temperature, the thicker the film can be formed. The film-forming rate of the example was lower than that of Comparative Example 2, but a high film-forming rate was obtained. On the other hand, in Comparative Example 1 (spherical shape), the film formation rate was slow, and it was difficult to form a thick film.

[0045] The film strengths of Examples 1 to 3 were lower than those of Comparative Example 2, but all showed sufficient strength as, for example, a lightning protection layer of an aircraft main wing.

[0046] Compared with Examples 1 and 2, the particle flow difference in the cold spray device of Example 3 and the film forming speed are small. In addition, the film tends to be easily oxidiz...

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Abstract

Disclosed are: a method for forming a metal coating film at a high speed by using a simple cold spray apparatus; and an aerospace structure member having a metal coating film formed thereon by a cold spray technique. Specifically disclosed is a method for forming a metal coating film, which comprises injecting non-spherical differently shaped particles composed of a metal onto the surface of a base material by a cold spray technique to form the metal coating film on the surface of the base material.

Description

technical field [0001] The invention relates to a method for forming a metal film and an aerospace structural component formed with the metal film. Background technique [0002] As structural parts of aircraft and the like, resin-based composite materials containing resins such as fiber-reinforced plastics, aluminum alloys, and the like are used. A resin-based composite material contains a low-conductivity resin as a base material. Therefore, for example, when used in an aircraft main wing structure, a conductive layer (lightning protection layer) is formed on the surface in order to provide lightning protection. As a method of forming a lightning protection layer on the surface of a resin-based composite material, a method of heating and adhering copper foil while forming the resin-based composite material is known. [0003] However, the above-mentioned method of simultaneously heating and adhering the copper foil on the surface of the resin-based composite material has po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/04
CPCC23C24/04
Inventor 小栗和幸千田诚关川贵洋
Owner MITSUBISHI HEAVY IND LTD