Patent ID: 6675623
Filing Date: 2004-01-13
Classification: B21B,B21C,H01B,H01F,Y02E,Y10T

Abstract:
A method of manufacturing keystone type superconducting compacted stranded wires, the method comprising:roll-forming superconducting stranded wires into keystone type superconducting compacted stranded wires from four directions, said superconducting stranded wires have a first side end and a second side end, said first side end is thinner than said second side end after being roll-formed; wherein said roll-forming superconducting stranded wires includes: operating a group of rolls comprising a first tapered rolls and a second tapered roll, said tapered rolls having tapered outer surfaces and rotation axes that are parallel with each other and a first flat rolls and a second flat roll, said flat rolls having rotation axes that are parallel with each other and that are perpendicular to the rotation axes of said tapered rolls; contacting said first side end of said superconducting stranded wires with said first flat roll before said second side end is contacted with said second flat roll; compressing and deforming the first side end of the superconducting stranded wires by said tapered rolls and said first flat roll; and pushing adjacent wires in a direction toward said second side end.