FLAT INSULATED WIRE AND MANUFACTURING METHOD OF THE SAME

• Main Authors: HATA SHOHEI, FUJITO KEISUKE, TSUJI TAKAYUKI, KUROKI KAZUMA, KURODA HIROMITSU
• Format: Patent
• Language: English; Japanese
• Published: 15.03.2018
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CABLES; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; CONDUCTORS; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INSULATORS; METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide a flat insulated wire which is formed so as to make a thickness of an insulation coating uniform and thick in an outer circumferential direction while suppressing scratches of the surface of the insulation coating by rolling in the flat insulated wire.SOLUTION: A flat insulated wire is formed of a flat conductor which is formed of a copper material and has a rectangular cross section and an insulation coating which is provided on the outer periphery of the flat conductor and is formed from a thermosetting resin, where the copper material contains titanium concentration of 5 mass ppm or more and 55 mass ppm or less, sulfur concentration of 3 mass ppm or more and 12 mass ppm or less, oxygen concentration of 2 mass ppm or more and 30 mass ppm or less, the balance copper with inevitable impurities, a ratio of the titanium concentration to the oxygen concentration is 2.0 or more and 4.0 or less, and the insulation coating has a difference between the maximum thickness and the minimum thickness in the outer circumferential direction of 10 μm or less.SELECTED DRAWING: Figure 1 【課題】平角絶縁電線において圧延による絶縁被覆表面の傷を抑制しながらも、絶縁被覆の厚さを外周方向で均一にかつ厚く形成する。【解決手段】銅材料からなる断面が矩形状の平角導体と、平角導体の外周上に設けられ熱硬化性樹脂から形成される絶縁被覆と、を備え、銅材料は、チタン濃度が５ｍａｓｓ ｐｐｍ以上５５ｍａｓｓ ｐｐｍ以下、硫黄濃度が３ｍａｓｓ ｐｐｍ以上１２ｍａｓｓ ｐｐｍ以下、酸素濃度が２ｍａｓｓ ｐｐｍ以上３０ｍａｓｓ ｐｐｍ以下、残部が銅と不可避不純物からなり、酸素濃度に対するチタン濃度の比率が２．０以上４．０以下であり、絶縁被覆は、外周方向における最大厚さと最小厚さとの差が１０μｍ以下である、平角絶縁電線が提供される。【選択図】図１