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US 9,406,417 B2Granted
Methods of manufacturing wire, multi-layer wire pre-products and wires
AssigneeGeneral Cable Industries, Inc.
InventorFrederick J. Kelley
Life of this patent
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Abstract
Exemplary methods for manufacturing a wire and resultant wires are disclosed herein. The method includes extruding a receptor cross-linkable polymer that is substantially free of curing agent about a conductive core and extruding a donor polymer in association with a curing agent. The method includes disposing the donor polymer about the receptor polymer and conductive core to create a multi-layer wire pre-product. The method also includes heat curing a multi-layer wire pre-product to form a wire.
Claims12
A method of manufacturing a wire, comprising:
- extruding a cross-linkable receptor polymer, substantially free of curing agent, about a conductive core;
- extruding a donor polymer, wherein the donor polymer comprises a curing agent;
- disposing the extruded donor polymer about the receptor polymer, thereby forming a multi-layer wire pre-product, wherein the donor polymer has a melt temperature lower than a melt temperature of the receptor polymer;
- and
- heat curing the multi-layer wire pre-product, wherein heat curing comprises:
- subjecting the multi-layer pre-product to a heat curing station operating at a cure temperature from about 130° C. to about 200° C.;
- and
- melting the donor polymer, such that the curing agent in the donor polymer migrates from the donor polymer to the receptor polymer;
- wherein the thickness of the receptor polymer to the thickness of the donor polymer is about 1:1 to about 1:5.
6 more elements
Dependencies are inferred from the claim text.