METHOD AND APPARATUS FOR MANUFACTURING ENAMELED WIRE

• US 20160033199A1
• Filed: 04/25/2015
• Published: 02/04/2016
• Est. Priority Date: 07/29/2014
• Status: Active Grant

• Current Assignee: Hitachi Metals (Thailand) Ltd.
• Original Assignee: Hitachi Metals (Thailand) Ltd.
• Inventors: FUNAYAMA, Yasuhiro, OMORI, Ken, SATO, Shunichiro
• Granted Patent: US 10,670,335 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B05D 3/0209 Multistage baking
• CPC Class Codes: B05D 3/0263 with IR heaters
• CPC Class Codes: B05D 3/067 Curing or cross-linking the coating
• CPC Class Codes: F26B 13/002 Drying coated, e.g. enamelled, varnished, wires
• CPC Class Codes: F26B 3/30 from infrared-emitting elements by radiation emanating from passages containing heated fluids other than combustion gases F26B23/10
• CPC Class Codes: H01B 13/003 using irradiation
• CPC Class Codes: H01B 13/065 Insulating conductors with lacquers or enamels

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.

Claims

1. A method for manufacturing an enameled wire, comprising:

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,

wherein the light comprises a peak wavelength of less than 4 μ

m.

2. The method according to claim 1, wherein the peak wavelength is in a range of 2.0 to 3.2 μ

m.

3. The method according to claim 1, wherein the light is unabsorbable by a solute included in the enamel coating.

4. The method according to claim 1, wherein the light comprises a near-infrared light.

5. The method according to claim 1, wherein the light comprises a laser light.

6. An apparatus for manufacturing an enameled wire, comprising a baking furnace comprising an irradiation unit that irradiates light with a peak wavelength of less than 4 μ

m onto a travelling conductor with an enamel coating thereon.

7. The apparatus according to claim 6, wherein the baking furnace comprises an evaporation oven with the irradiation unit and a curing oven separate from the evaporation oven.