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Method and apparatus for producing insulated wire

A technology of insulated wire and manufacturing method, which is applied in the direction of cable/conductor manufacturing, insulator, and conductor/cable insulation, etc., can solve the problems of increasing manufacturing cost, increasing the thickness of insulating film, and being expensive, and achieves stable manufacturing and improved viscosity. the effect of combined performance

Active Publication Date: 2009-10-14
ESSEX FURUKAWA MAGNET WIRE JAPAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the high price of enamel, increasing the thickness of the insulating film layer will increase the manufacturing cost accordingly

Method used

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  • Method and apparatus for producing insulated wire
  • Method and apparatus for producing insulated wire
  • Method and apparatus for producing insulated wire

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Embodiment Construction

[0086] figure 1 The manufacturing method of the insulated wire D2 which concerns on one Embodiment of this invention, and its manufacturing apparatus are shown. The main of which image 3 Manufacture of the illustrated insulated wire D2 will be described, and the description will also refer to a modified example. Figure 4 The manufacture of insulated wire D2.

[0087] like figure 1 As shown, the manufacturing apparatus 1 for manufacturing the insulated wire D2 is sequentially arranged in a tandem manner: a conductor supplying part 2 in a conductor supplying step a, a conductor processing part 3 in a conductor processing step b, a conductor annealing part 4 in a conductor annealing step c, a film Film baking section 5 in baking step d, pulling section 6 after film baking section 5, wire preheating section 7 in wire preheating step e, wire straightening section 8 in wire straightening step f, resin extrusion step The resin extrusion part 9 of g, the electric wire cooling p...

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Abstract

To provide insulated wire producing method and apparatus for producing a high quality corona-resistant insulated wire inexpensively. In the method for producing an insulated wire (D2), a primary coated wire (D1) wherein a primary coating layer (B) is applied to a conductor (A) is preheated at a temperature sufficient for enhancing adhesion of resin to the primary coating layer (B). Subsequently, resin such as polyphenylene sulfide resin is extruded onto the primary coating layer (B) of the preheated primary coated wire (D1), thus producing an insulated wire (D2) coated with a secondary coating layer (C) composed of PPS resin.

Description

technical field [0001] The present invention relates to a manufacturing method of an insulated wire and a manufacturing apparatus thereof. Background technique [0002] As a conventional method for producing an insulated wire, there is known a method in which, for example, a conductor having a circular cross-section is passed through a cassette roller die (CRD) having a pair of rolls, and the conductor is drawn into a flat cross-section. Through the annealing furnace, the conductor strain caused by the drawing process is removed to soften it. After coating the conductor with enamel, it is baked in a baking furnace so that the enamel baking layer is coated on the conductor, and the flat-section insulated wire thus obtained is wound. The manufacturing method of the insulated wire of patent document 1 is one of such methods. [0003] In recent years, with the continuous advancement of energy saving, miniaturization and high performance of electric equipment, industrial motors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/14H01B13/00H01B13/16
CPCH01B3/301H01B13/14
Inventor 日下裕之黑宫幸次斋藤仁志重松亮村上彰启西岛真吾市川新士佐久间治雄
Owner ESSEX FURUKAWA MAGNET WIRE JAPAN CO LTD
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