Abstract:
A polyamide-imide coating material includes a polyamide-imide resin including a repeating unit of a chemical structure represented by the following general formula (1) in a molecular chain, and a solvent for dissolving the polyamide-imide resin R1: monovalent organic group R2: divalent organic group R3: trivalent organic group.
Abstract:
An electrically insulated wire includes a rectangular conductor having a substantially rectangular cross section with corners shaped in a circular arc, and an electrical insulating coating formed by heating an electrical insulating varnish applied to coat an outer periphery of the rectangular conductor. The electrical insulating coating includes a thickest portion and a thinnest portion in a peripheral direction thereof. The rectangular conductor has a curvature radius of the corners of 0.6 mm or less and a ratio L2/L1 of 2.0 or less where L1 is a length of a short side in a width direction and L2 is a length of a long side in a longitudinal direction. The electrical insulating coating has a ratio d1/d2 of 1.3 or less where d1 is a coating thickness of the thickest portion and d2 is a coating thickness of the thinnest portion in the peripheral direction of the electrical insulating coating.
Abstract:
A flat wiring member includes a plurality of rectangular enamel coated wires arranged in the form of a flat plate, a wiring stem portion that the rectangular enamel coated wires are arranged in parallel to each other and adjacent ones of the rectangular enamel coated wires are bonded to each other at a surface of an enamel coat layer thereof, and a wiring branch portion with the rectangular enamel coated wires bent so as to branch off from the wiring stem portion.
Abstract:
A method for manufacturing an enameled wire includes providing a conductor with an enamel coating thereon, and exposing the conductor to a light with a wavelength absorbable by a solvent included in the enamel coating to evaporate the solvent. The light includes a peak wavelength of less than 4 μm.
Abstract:
There is provided a method for manufacturing an insulated wire, including at least: coating an outer periphery of a running wire with an insulation coating material discharged from a coating material discharging tank; baking the insulation coating material by an incinerator, the insulation coating material being used for coating the outer periphery of the running wire; and cooling the running wire by a cooling mechanism so that a temperature of the running wire before being coated with the insulation coating material, is a specific temperature, based on a temperature of the running wire detected by a temperature detector, wherein the coating, the baking, and the cooling are repeated.