FILM REMOVAL METHOD AND FILM REMOVAL DEVICE OF RECTANGULAR WIRE

To make it possible to remove an insulating film of a rectangular wire in a longitudinal entire area of a target area without exception with low cost by making the cross-sectional shape of the rectangular wire closer to a rectangular shape in the longitudinal entire area by molding.SOLUTION: A film...

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Bibliographic Details
Main Author IKEDA RYOTA
Format Patent
LanguageEnglish
Japanese
Published 22.03.2024
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES
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Summary:To make it possible to remove an insulating film of a rectangular wire in a longitudinal entire area of a target area without exception with low cost by making the cross-sectional shape of the rectangular wire closer to a rectangular shape in the longitudinal entire area by molding.SOLUTION: A film removal method of a rectangular wire 1a comprises: a first film removal step S2 of removing an insulating film 2(2a) on a first side constituting a cross section of the rectangular wire 1a having a rectangular shape; a second film removal step S3 of removing an insulating film 2(2b) on a second side orthogonal to the first side constituting the cross section of the rectangular wire 1a along with the first side; and a curvature radius reduction step S1 of reducing a curvature radius of a corner 4 between both sides, by molding the rectangular wire 1a with prescribed molding surfaces 11a and 12a before the second film removal step S3 that is implemented later among the first and second film removal steps S2 and S3. Protrusions 13 and 14 which protrude from the molding surfaces 11a and 12a toward the rectangular wire 1a are provided on the molding surfaces 11a and 12a. The protrusions 13 and 14 are provided separately on three or more places separated in a longitudinal direction of the rectangular wire 1a, out of the molding surfaces 11a and 12a.SELECTED DRAWING: Figure 7 【課題】型成形により、平角線の断面形状をその長手方向全域にわたって矩形形状に近づけることで、平角線の絶縁被膜を対象領域の長手方向全域にわたって漏れなくかつ低コストに除去可能とする。【解決手段】平角線１ａの被膜除去方法は、矩形状をなす平角線１ａの断面を構成する第一の辺側の絶縁被膜２（２ａ）を除去する第一被膜除去工程Ｓ２と、第一の辺と共に平角線１ａの断面を構成し第一の辺と直交する第二の辺側の絶縁被膜２（２ｂ）を除去する第二被膜除去工程Ｓ３と、第一及び第二被膜除去工程Ｓ２，Ｓ３のうち後に実施される第二被膜除去工程Ｓ３よりも前に、平角線１ａに所定の成形面１１ａ，１２ａで型成形を施して、双方の辺の間の角部４の曲率半径を小さくする曲率半径縮小工程Ｓ１とを備える。成形面１１ａ，１２ａには、成形面１１ａ，１２ａから平角線１ａに向けて突出する突出部１３，１４が設けられ、突出部１３，１４は、成形面１１ａ，１２ａのうち平角線１ａの長手方向に離れた３箇所以上に設けられている。【選択図】図７
Bibliography:Application Number: JP20220143830