Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1980-12-19
1984-06-05
Lawrence, Evan K.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283179, 4283193, 4283211, B32B 326
Patent
active
044528566
ABSTRACT:
A corrosion protection structure for protecting an outer covering on a porous metal body from corrosive undermining. The corrosion protection structure includes an inner protective material within the pores of a metal body having an outer surface, pores communicating with the outer surface, and a covering of solid outer protective material that is bonded to the outer surface and bridges over the pores. The inner protective material is a liquid medium, preferably oil, which is substantially impervious to atmospheric corrosive agents, having therein a suspension of finely divided particulate material, preferably paint pigment. Some of the finely divided particulate material substantially seals off small inner channel portions of the pores and thereby stabilizes the location of the inner protective material in the pores, both pending the application of the outer covering to form the structure and after the application of the outer covering over a long operational life of the resulting corrosion protection structure, so that the inner protective material is properly located for optimum protection of the outer covering from corrosive undermining.
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