Method of repairing a composite material
AssigneeShort Brothers PLC
InventorsSamuel Colin Hanna, John A. Armstrong, Steven Robb, Tom Brown
Life of this patent
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Abstract
A method of repairing damage to a composite material having a composite substrate and at least one layer of shielding material includes: a) removing damage to the at least one layer of shielding material by creating a hole in the at least one layer of shielding material; b) applying a patch of shielding material in the region of the hole via a resin, wherein a ratio of a resin weight to a weight of the patch of shielding material lies in a range between about 0.45-0.55; and c) curing the resin, wherein an absorptive, consumable material is positioned in contact with the resin during at least a portion of the curing.
Claims26
A method for repairing damage to a composite material comprising a composite substrate and at least one layer of shielding material comprising a layer of a first shielding material and a layer of a second shielding material, the method comprising:
- removing damage to the at least one layer of shielding material by creating a first hole in the layer of the first shielding material and by creating a second hole in the layer of the second shielding material;
- applying a patch of shielding material in the region of the first hole and the second hole via a mixed resin, wherein the patch of shielding material comprises a first layer of a first patch shielding material and a second layer of a second patch shielding material, wherein the first patch shielding material has a greater weight per unit area than the second patch shielding material, and wherein a ratio of a mixed resin weight to a weight of the patch of shielding material lies in a range between about 0.45-0.55;
- and
- curing the mixed resin, wherein an absorptive, consumable material is positioned in contact with the mixed resin during at least a portion of the curing.
A method for repairing damage to a composite material comprising a composite substrate and at least one layer of shielding material, the method comprising:
- removing damage to the at least one layer of shielding material by creating a hole in the at least one layer of shielding material;
- and
- applying a patch of shielding material in the region of the hole via a mixed resin, the patch having a first layer of a first patch shielding material and a second layer of a second patch shielding material, the first patch shielding material being an enhanced shielding material in comparison to the second patch shielding material, such that the second patch shielding material dissipates electricity more slowly than the first patch shielding material,
- wherein the second layer of the patch is dimensioned to be larger than the first layer of the patch, and larger than the hole so as to overlie the at least one layer of shielding material, and
- wherein the first patch shielding material has a greater weight per unit area than the second patch shielding material.
A method for repairing damage to a composite material that comprises a composite substrate, a layer of a first substrate shielding material and a layer of a second substrate shielding material, the method comprising:
- creating a first hole in the layer of the first substrate shielding material;
- creating a second hole in the layer of the second substrate shielding material, the second hole being larger than the first hole;
- applying a patch of shielding material in the region of the first hole and the second hole via a mixed resin, the patch of shielding material comprising a first layer of a first patch shielding material and a second layer of a second patch shielding material, the first patch shielding material having a greater weight per unit area than the second patch shielding material,
- wherein the second layer of the second patch shielding material is dimensioned to be larger than the second hole.
Dependencies are inferred from the claim text.