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14 条记录 (耗时 0.017 秒)

    Superconducting wire and method of producing the same
    6.
    发明授权
    Superconducting wire and method of producing the same 失效
    超导线及其制造方法

    公开(公告)号：US6103669A

    公开(公告)日：2000-08-15

    申请号：US448137

    申请日：1995-05-23

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

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

    IPC分类号： H01B12/04 ,  H01B13/00 ,  H01L39/14 ,  H01L39/24

    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/cm.sup.2, which comprises a Y--Ba--Cu oxide layer having a superconducting property and a silver layer surrounding the oxide layer 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 and the silver layers appearing on the cross section having a zone over they are parallel to each other, the thickness of the oxide layer being cold rolled in the range of 0.35 to 0.75 based on the whole thickness of the wire, the whole thickness being 0.2 mm or less, and the metal layer being deformable to follow the shrink deformation of the oxide layer 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.sub.i -t)/t.sub.i .times.100 is equal to or greater than 90%, wherein t.sub.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.

    摘要翻译： 本发明提供了具有至少1000A / 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氧化物层和围绕氧化物层的银层，并且具有如此平坦的 横截面垂直于导线的纵向方向，在它们之间具有区域的横截面上出现的氧化物层和银层之间的上下线之间彼此平行，氧化层的厚度被冷轧 基于整个线材的0.35至0.75的范围，整个厚度为0.2mm或更小，并且当热处理烧结时，金属层可变形以跟随氧化物层的收缩变形，但是当使用时是刚性的 。 该扁线通过用具有超导特性的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丝，然后将扁丝中的棒丝冷轧 （ti-t）/ tix100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， 然后对扁线进行热处理以烧结超导氧化物。

    Welded structure having improved mechanical strength and process for making same
    9.
    发明授权
    Welded structure having improved mechanical strength and process for making same 失效
    具有改善机械强度的焊接结构及其制造方法

    公开(公告)号：US4348131A

    公开(公告)日：1982-09-07

    申请号：US147329

    申请日：1980-05-06

    申请人： Shizuka Shimanuki ,  Toshimi Matsumoto ,  Hiroshi Sato ,  Tsutomu Onuma ,  Seishin Kirihara

    发明人： Shizuka Shimanuki ,  Toshimi Matsumoto ,  Hiroshi Sato ,  Tsutomu Onuma ,  Seishin Kirihara

    IPC分类号： B23K9/00 ,  B23K9/23 ,  B23K33/00 ,  C21D9/50

    CPC分类号： C21D9/50 ,  B23K9/23 ,  C21D2251/00 ,  Y10T403/21 ,  Y10T403/257 ,  Y10T403/478 ,  Y10T403/479

    摘要： A welded structure and a method for making same wherein a plurality of weld metals, such as martensitic steel and austenitic steel, differing in coefficient of thermal expansion from each other are deposited in a plurality of layers thicknesswise of the welded structure in a gap defined by structural members to be welded in such a manner that a layer of the weld metal of higher coefficient of thermal expansion is covered by a layer of the weld metal of lower coefficient of thermal expansion in a weld formed, to improve brittle fracture strength, fatigue strength and stress corrosion cracking resistance of the weld. By subjecting the welded structure to stress relief annealing treatment, it is possible to produce compressive stress on the surface of the layer of the weld metal of lower coefficient of thermal expansion.

    摘要翻译： 一种焊接结构及其制造方法，其特征在于，在焊接结构的厚度方向上以多个等级彼此不同的热电偶热膨胀系数的焊接金属（例如马氏体钢和奥氏体钢）以由 要焊接的结构构件，使得具有较高热膨胀系数的焊接金属层被形成的焊接中的热膨胀系数较低的焊接金属层覆盖，以提高脆性断裂强度，疲劳强度 和焊缝的抗应力腐蚀开裂性。 通过对焊接结构进行应力消除退火处理，可以在较低的热膨胀系数的焊接金属层的表面产生压应力。