| 摘要 |
<p>A corrosion protection structure for a metal body having pores which communicate with the outer surface of the body is designed to protect against corrosive agents of the atmosphere and marine environments. The structure comprises an inner protective material substantially impervious to atmospheric corrosive agents disposed within the pores, the outer surface of the body being free of the material, and a solid outer protective material, different from the inner material and substantially impervious to atmospheric corrosive agents and to the inner material, covering the outer surface and the pores and intimately bonded to the outer surface. To form the corrosion protection structure, the pores of the body are impregnated with the inner protective material, preferably oil. After the impregnation, any of the inner protective material such as oil that may remain on the outer surface of the metal is selectively removed while the inner protective material in the pores is selectively retained. Thereafter, the outer protective covering material, preferably a resin, is applied over the outer surface and pores and intimately bonded to the metal surface to protect the metal from corrosion initiating from the outside. The inner protective material remains operatively disposed in the pores to protect the covering from corrosive undermining.</p> |
