Surface Treating Magnet Wire Enamel Layers To Promote Layer Adhesion
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United States of America Patent
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Issued Date -
Nov 8, 2018
app pub date -
Apr 30, 2018
filing date -
Apr 30, 2018
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Abstract
A method for forming an insulated winding wire with enhanced adhesion between enamel layers is described. A conductor may be provided, and a first enamel layer may be formed around the conductor. The first enamel layer may include a first thermoset polymeric material. An outer surface of the first enamel layer maybe modified, for example, by a plasma, corona, ultraviolet, or flame treatment. The surface modification may alter a surface energy of the first enamel layer. A second enamel layer may be formed on the first enamel layer, and the second enamel layer may include a second thermoset polymeric material.
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