| 摘要 |
PURPOSE:To reduce crystal grains through which signal current should be passed and to apply image/acoustic signal current surely without a phase difference by providing the titled winding with crystal construction extended like a fiber in the longitudinal direction. CONSTITUTION:At least one kind of metal out of Ag, Cr and Zr is contained in Cu. The oxygen content is <=300ppm and the conductivity is >=90% IACS. The orientated crystal structure is maintained also after enamel glazing. If the Ag content is <0.03%, the maintaining effect of the fiber-like construction is reduced, and when the Ag content exceeds 0.3%, said effect reaches almost saturation and further improvement can not be expected. When the Cr content is <0.01%, the effect is reduced, and if the Cr content exceeds 0.09%, excess Cr may be crystallized as deposit and inverse influence may be exerted upon sound and images. When the Zr content is <0.01%, said maintaining effect is reduced, and when exceeding 0.1%, excess Zr may be crystallized as deposit and the inverse influence may be exerted upon sound or images.
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