公开(公告)号：US09539626B2

公开(公告)日：2017-01-10

申请号：US14296244

申请日：2014-06-04

申请人： BEIJING UNIVERSITY OF TECHNOLOGY

发明人： Lin Ma ,  Hong-Li Suo ,  Yi-Chen Meng ,  Ya-Ru Liang ,  Li-Jia Chen ,  Yan Xu ,  Hui Tian ,  Yi Wang ,  Min Liu

IPC分类号： B21B1/02 ,  H01L39/12 ,  C22C1/02 ,  B21B3/00 ,  H01L39/24

CPC分类号： B21B1/02 ,  B21B3/00 ,  B21B2265/14 ,  C22C1/023 ,  H01L39/126 ,  H01L39/2454

摘要： A method of rolling NiW alloy tapes for coated conductors belongs to the technical field of metal materials rolling. According to the method, a cylindrical NiW alloy ingot with a diameter not less than 10 mm is used to be rolled back and forth along the axial direction as a rolling direction, wherein the content of W is 5˜7 at. %, and the axis of this ingot is perpendicular to the plane where the axes of working rollers are located. During rolling process, the cross sectional area reduction of the ingot is retained at 5% per pass. When the total cross sectional area reduction of the ingot is larger than 98% and the thickness of the tape is down to 60˜100 μm, the rolling is stopped, and thus the NiW alloy tape is obtained. The method has the advantages that the negative influence generated when the NiW alloy tape is produced from a cuboid initial NiW alloy ingot can be reduced as much as possible, the yield of the NiW alloy tapes is increased, as well as relatively ideal effects can be obtained in terms of the surface biaxial texture, the length and the axial quality.

摘要翻译： 轧制NiW合金带涂层导体的方法属于轧制金属材料的技术领域。 根据该方法，使用直径不小于10mm的圆柱形NiW合金锭作为轧制方向沿着轴向方向前后滚动，其中W的含量为5〜7at。 ％，并且该锭的轴线垂直于工作辊的轴线所在的平面。 在轧制过程中，锭的横截面积减少量保持在每通过5％。 当锭的总横截面积减小大于98％并且带的厚度降至60〜100μm时，停止轧制，从而获得NiW合金带。 该方法的优点在于，可以尽可能地减少由长方体的初始NiW合金锭制造NiW合金带时产生的负面影响，NiW合金带的收率提高，相对理想的效果可以 从表面双轴纹理，长度和轴向质量方面获得。

公开(公告)号：US09896746B2

公开(公告)日：2018-02-20

申请号：US14711541

申请日：2015-05-13

申请人： BEIJING UNIVERSITY OF TECHNOLOGY

发明人： Hongli Suo ,  Yichen Meng ,  Lin Ma ,  Min Liu ,  Yi Wang ,  Mangmang Gao ,  Hui Tian ,  Yaru Liang ,  Pan Wang ,  Faxue Peng ,  Jing Liu ,  Tiantian Wang

IPC分类号： B22F3/15 ,  B22F3/24 ,  C22C19/03 ,  C22F1/10 ,  H01L39/00 ,  H01L39/12 ,  H01L39/24

CPC分类号： C22C19/03 ,  B22F3/24 ,  B22F7/008 ,  B22F7/02 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0433 ,  C22F1/10 ,  H01L39/2454 ,  B22F1/0003 ,  B22F2009/041 ,  B22F3/15 ,  B22F2003/185 ,  B22F3/18 ,  B22F2003/248 ,  B22F2009/043 ,  B22F2201/013 ,  B22F2202/06

摘要： A method for preparing element diffusion-type composite substrate and it belongs to the field of high-temperature coated superconductor substrate preparation. The rolled composite nickel-tungsten alloy substrate is heated and thermally insulated, meanwhile, both ends of the rolled substrate are applied with a low voltage and high current density pulse current. High-performance nickel-tungsten alloy composite substrate is obtained with the method in the present invention and the sandwich-like composite substrate has low ferromagnetism and high strength due to higher solute diffusion from inner layer to outer layer, yet which does not affect the formation of sharp cubic texture on the surface of the composite substrate. On the one hand, the adoption of electric pulse technology accelerates the interdiffusion effect of inter-layer elements, on the other hand, it promotes the recrystallization nucleation and reduces the recrystallization annealing temperature of the composite substrate, thus energy saving effect is achieved and the negative effects of annealing thermal erosion grooves among crystal boundary to subsequent coating are effectively reduced. Alloy composite substrate prepared in this invention has the characteristics of high cubic texture content, low magnetism, high strength, and can be applied to large-scale industrial production.