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    Superconducting wire and method of producing the same
    2.
    发明公开
    Superconducting wire and method of producing the same 失效
    超导线及其制造方法

    公开(公告)号：EP0310033A3

    公开(公告)日：1991-10-23

    申请号：EP88115997.4

    申请日：1988-09-28

    申请人： HITACHI, LTD.

    发明人： Okayama, Akira ,  Okada, Michiya ,  Morimoto, Tadaoki ,  Matsumoto, Toshimi ,  Yanai, Yoshimi ,  Satoh, Hiroshi ,  Doi, Toshiya ,  Tanaka, Kazuhide ,  Kato, Takahiko

    IPC分类号： H01L39/24 ,  B21B1/16 ,  B21B3/00

    CPC分类号： H01L39/143 ,  H01L39/248 ,  Y10T29/49014

    摘要： This invention provides an oxide-type superconducting flat wire having a critical current density of at least 1,000 A/cm², which comprises a Y-Ba-Cu oxide layer (1) having a superconducting property and a silver layer (2) surrounding the oxide layer (1) and has so flat a cross section vertical to the longitudinal direction of the wire that the upper and lower lines between the oxide layer (1) and the silver layers (2) appearing on the cross section having a zone over they are parallel to each other, the thickness (t o ) of the oxide layer (1) being cold rolled in the range of 0.35 to 0.75 based on the whole thickness (t) of the wire, the whole thickness (t) being 0.2 mm or less, and the metal layer (2) being deformable to follow the shrink deformation of the oxide layer (1) when heat treated to be sintered, but rigid when used. This flat wire is produced by filling a silver-made tube with a Y-Ba-Cu oxide powder having a superconducting property, drawing the tube into a rod wire having a round cross section, then cold rolling the rod wire in the flat wire so that (t i - t)/t i x 100 is equal to or greater than 90%, wherein t i is the whole thickness of the cross section of the rod wire before the cold rolling and t is the whole thickness of the cold-rolled flat wire, and then heat treating the flat wire to sinter the superconducting oxide (1).

    Superconducting wire and method of producing the same
    5.
    发明公开
    Superconducting wire and method of producing the same 失效
    Supraleitender Draht und Verfahren zu seiner Herstellung。

    公开(公告)号：EP0310033A2

    公开(公告)日：1989-04-05

    申请号：EP88115997.4

    申请日：1988-09-28

    申请人： HITACHI, LTD.

    发明人： Okayama, Akira ,  Okada, Michiya ,  Morimoto, Tadaoki ,  Matsumoto, Toshimi ,  Yanai, Yoshimi ,  Satoh, Hiroshi ,  Doi, Toshiya ,  Tanaka, Kazuhide ,  Kato, Takahiko

    IPC分类号： H01L39/24 ,  B21B1/16 ,  B21B3/00

    CPC分类号： H01L39/143 ,  H01L39/248 ,  Y10T29/49014

    摘要： This invention provides an oxide-type superconducting flat wire having a critical current density of at least 1,000 A/cm², which comprises a Y-Ba-Cu oxide layer (1) having a superconducting property and a silver layer (2) surrounding the oxide layer (1) and has so flat a cross section vertical to the longitudinal direction of the wire that the upper and lower lines between the oxide layer (1) and the silver layers (2) appearing on the cross section having a zone over they are parallel to each other, the thickness (t o ) of the oxide layer (1) being cold rolled in the range of 0.35 to 0.75 based on the whole thickness (t) of the wire, the whole thickness (t) being 0.2 mm or less, and the metal layer (2) being deformable to follow the shrink deformation of the oxide layer (1) when heat treated to be sintered, but rigid when used. This flat wire is produced by filling a silver-made tube with a Y-Ba-Cu oxide powder having a superconducting property, drawing the tube into a rod wire having a round cross section, then cold rolling the rod wire in the flat wire so that (t i - t)/t i x 100 is equal to or greater than 90%, wherein t i is the whole thickness of the cross section of the rod wire before the cold rolling and t is the whole thickness of the cold-rolled flat wire, and then heat treating the flat wire to sinter the superconducting oxide (1).

    摘要翻译： 本发明提供一种具有至少1,000A / cm 2的临界电流密度的氧化物型超导扁线，其包括具有超导特性的Y-Ba-Cu氧化物层（1）和银层（2） 围绕氧化物层（1）并且具有与导线的纵向方向垂直的横截面，使得在具有区域的横截面上出现的氧化物层（1）和银层（2）之间的上下线 在它们彼此平行的情况下，氧化物层（1）的厚度（t）根据导线的整个厚度（t）在0.35至0.75的范围内进行冷轧，整个厚度（t）为0.2 （2）可以随着氧化物层（1）的收缩变形而变形，当被热处理烧结时，但是在使用时是刚性的。 该扁线通过用具有超导性的Y-Ba-Cu氧化物粉末填充银制管而制成，将管拉成具有圆形横截面的棒状丝，然后将扁丝中的棒丝冷轧 （t t）/ ti x 100等于或大于90％，其中ti是冷轧前棒丝的横截面的整个厚度，t是冷轧扁丝的整个厚度 ，然后热处理扁线以烧结超导氧化物（1）。