Process for producing metal member, structural member with...

Details Process for producing metal member, structural member with... Process for producing metal member, structural member with...

C - Chemistry, Metallurgy

23

C

C23C 22/78 (2006.01) B24C 1/10 (2006.01)

Patent

CA 2691222

A process for producing a metal member that enables both the fatigue properties and the corrosion resistance of the member to be improved, a structural member that includes a thus produced metal member, and a method of repairing a metal member. The process for producing a metal member comprises a projection step of projecting particles having an average particle size of not more than 200 µm onto the surface of a metal material comprising an aluminum alloy using compressed air or a compressed gas, and a chemical conversion treatment step of forming a film on the surface of the metal material by performing a chemical conversion treatment following the projection step.

Procédé de production d'un élément en métal grâce auquel la caractéristique de fatigue et la propriété anticorrosion peuvent être améliorées; élément de structure muni de l'élément en métal ainsi produit; et procédé de réparation d'un élément en métal. Le procédé de production d'un élément en métal comprend l'étape de projection consistant à projeter des grains d'un diamètre moyen de 200 µm ou moins sur la surface d'un matériau métallique qui comprend un alliage d'aluminium à l'aide d'air comprimé/de gaz compressible, et l'étape de traitement chimique consistant, après l'étape de projection, à appliquer un revêtement sur la surface à l'aide d'un traitement chimique.

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