Connection method for MgB2 superconductive wire rods
A technology of superconducting wire rod and connection method, which is applied in the direction of connection, connection contact material, circuit/collector parts, etc.
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Embodiment 1
[0030] This example MgB 2 The connecting method of the superconducting wire comprises the following steps:
[0031] Step 1. First, the first MgB 2 The end to be connected of the superconducting wire 1-1 and the second MgB 2 The ends to be connected of the superconducting wires 1-2 are wax-sealed to prevent MgB in the wires 2 The precursor powder was corroded by acid solution; then, the first MgB 2 Superconducting wire 1-1 and the second MgB 2 The superconducting wires 1-2 are all placed in a nitric acid solution for pickling treatment to remove the outer Cu cladding layer, and the HNO in the nitric acid solution 3 with H 2 The molar ratio of O is 1:1.8; after that, the first MgB after pickling treatment 2 The end to be connected of the superconducting wire 1-1 and the second MgB after pickling treatment 2 The ends to be connected of the superconducting wires 1-2 are ground into a slope shape, and the slope angle (the angle between the horizontal plane and the inclined p...
Embodiment 2
[0038] This example MgB 2 The connecting method of the superconducting wire comprises the following steps:
[0039] Step 1. First, the first MgB 2 The end to be connected of the superconducting wire 1-1 and the second MgB 2 The ends to be connected of the superconducting wires 1-2 are wax-sealed to prevent MgB in the wires 2 The precursor powder was corroded by acid solution; then, the first MgB 2 Superconducting wire 1-1 and the second MgB 2 The superconducting wires 1-2 are all placed in a nitric acid solution for pickling treatment to remove the outer Cu cladding layer, and the HNO in the nitric acid solution 3 with H 2 The molar ratio of O is 1:1.6; after that, the first MgB after pickling treatment 2 The end to be connected of the superconducting wire 1-1 and the second MgB after pickling treatment 2 The ends to be connected of the superconducting wires 1-2 are ground into a slope shape, and the slope angle (the angle between the horizontal plane and the inclined p...
Embodiment 3
[0046] This example MgB 2 The connecting method of the superconducting wire comprises the following steps:
[0047] Step 1. First, the first MgB 2 The end to be connected of the superconducting wire 1-1 and the second MgB 2 The ends to be connected of the superconducting wires 1-2 are wax-sealed to prevent MgB in the wires 2 The precursor powder was corroded by acid solution; then, the first MgB 2 Superconducting wire 1-1 and the second MgB 2 The superconducting wires 1-2 are all placed in a nitric acid solution for pickling treatment to remove the outer Cu cladding layer, and the HNO in the nitric acid solution 3 with H 2 The molar ratio of O is 1:2; after that, the first MgB after pickling treatment 2 The end to be connected of the superconducting wire 1-1 and the second MgB after pickling treatment 2 The ends to be connected of the superconducting wires 1-2 are ground into a slope shape, and the slope angle (the angle between the horizontal plane and the inclined pla...
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