Preparation method of copper-tantalum composite wire with high strength and high conductivity
A composite wire, high conductivity technology, applied in the field of preparation of high-strength and high-conductivity copper-tantalum composite wire, can solve the problems of core wire fracture mechanical properties, reduction and other problems, achieve high shear modulus, reduce deformation, and improve mechanical properties Effect
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Embodiment 1
[0026] Step 1. Copper foil of 6.4m (length)×150mm (width)×0.20mm (thickness) and tantalum foil of 6.4m (length)×150mm (width)×0.14mm (thickness) are overlapped and wound on Φ7. On the copper rod of 0mm×150mm, the oxygen-free copper rod is engraved with a groove along the axial direction. The depth of the groove is 3mm and the width is 1mm. It is used for curling, and then the wound copper foil and tantalum foil composite are packed into Φ65mm × 5mm (tube thickness) × 160mm (length) oxygen-free copper tube, and insert a pure copper plunger into the gap between the copper foil tantalum foil composite and the inner wall of the oxygen-free copper tube, the copper foil tantalum foil composite The filling rate of the body in the oxygen-free copper tube reaches 92%;
[0027] Step 2. Carry out vacuum electron beam sealing welding to the two ends of the oxygen-free copper tube and the pure copper plunger loaded in step 1, and the vacuum degree reaches 10 -3 Pa, to obtain the wrapping ...
Embodiment 2
[0033] Step 1. Overlap oxygen-free copper foil of 4m (length)×120mm (width)×0.16mm (thickness) and pure tantalum foil of 4m (length)×120mm (width)×0.08mm (thickness) and wind it on Φ7 On the copper rod of .0mm×150mm, the oxygen-free copper rod is engraved with a groove along the axial direction. The depth of the groove is 2mm and the width is 1mm. Φ45mm×4mm (tube thickness)×125mm (length) oxygen-free copper tube, and insert a pure copper plunger into the gap between the copper foil tantalum foil composite and the inner wall of the oxygen-free copper tube, the copper foil tantalum foil The filling rate of the composite in the oxygen-free copper tube reaches 90%;
[0034] Step 2. Carry out vacuum electron beam sealing welding to the two ends of the oxygen-free copper tube and the pure copper plunger loaded in step 1, and the vacuum degree reaches 10 -3 Pa, to obtain the wrapping body, and then carry out cold isostatic pressing treatment to the wrapping body, the pressure of the...
Embodiment 3
[0040] Step 1. Overlap oxygen-free copper foil of 5m (length)×130mm (width)×0.2mm (thickness) and pure tantalum foil of 5m (length)×130mm (width)×0.12mm (thickness) and wind it on Φ6 On the copper rod of .0mm×130mm, the oxygen-free copper rod is engraved with a groove along the axial direction. The depth of the groove is 3mm and the width is 1mm. Φ55mm×4mm (tube thickness)×135mm (length) oxygen-free copper tube, and insert a pure copper plunger into the gap between the copper foil tantalum foil composite and the inner wall of the oxygen-free copper tube, the copper foil tantalum foil The filling rate of the composite in the oxygen-free copper tube reaches 93%;
[0041] Step 2. Carry out vacuum electron beam sealing welding to the two ends of the oxygen-free copper tube and the pure copper plunger loaded in step 1, and the vacuum degree reaches 10 -3 Pa, to obtain the wrapping body, and then carry out cold isostatic pressing treatment to the wrapping body, the pressure of the ...
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