Method for connecting copper clad aluminum composite wire
A composite wire, copper-clad aluminum technology, applied in the direction of connecting contact materials, cable/conductor manufacturing, electrical components, etc., can solve the problems of difficulty in making Zn-Al alloy thin strips, low melting point, etc., to achieve convenient online operation, temperature The effect of low energy consumption
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Embodiment 1
[0024] The diameter of the copper-clad aluminum composite wire to be connected is 2mm, and a pure copper strip with a thickness of 0.2mm is plated in a liquid Zn-4wt%Al alloy by a hot-dipping method to form a copper strip with a thickness of 30 μm and double-sided Zn-Al alloy plating. Then the galvanized alloy copper strip is punched into discs with a diameter of 2 mm, and the end surface of the copper-clad aluminum composite wire to be connected is polished flat by mechanical means and perpendicular to the length direction of the copper-clad aluminum composite wire. The instant liquid diffusion connection realizes the connection of the copper-clad aluminum composite wire; when the low-temperature instantaneous liquid diffusion connection is made, the copper-clad aluminum composite wire to be welded is put into such as figure 1 Vacuumize the enclosed space shown, the vacuum degree is 1×10 -2 Pa, and then filled with argon gas for protection, the local heating of the part to be...
Embodiment 2
[0029] The diameter of the copper-clad aluminum composite wire to be connected is 0.5mm, and the pure copper strip with a thickness of 0.06mm is plated in a liquid Zn-4wt%Al alloy by hot-dipping method to form a copper strip with a thickness of 20μm and double-sided Zn-Al alloy plating , and then punch the galvanized alloy copper strip into a disc with a diameter of 0.5mm, and mechanically grind the end face of the copper-clad aluminum composite wire to be connected and be perpendicular to the length direction of the copper-clad aluminum composite wire, under the protection of an inert gas , realize the connection of copper-clad aluminum composite wires through low-temperature instantaneous liquid diffusion connection, when low-temperature instantaneous liquid diffusion connection, put the copper-clad aluminum composite wires to be welded into a closed space for vacuuming, the vacuum degree is 1.2×10 -2 Pa, and then filled with nitrogen for protection, and the local heating of ...
Embodiment 3
[0032] The diameter of the copper-clad aluminum composite wire to be connected is 0.2mm, and the pure copper strip with a thickness of 0.02mm is plated in a liquid Zn-5wt%Al alloy by hot-dipping method to form a copper strip with a thickness of 10μm and double-sided Zn-Al alloy plating , and then punch the galvanized alloy copper strip into a disc with a diameter of 0.2mm, and mechanically grind the end face of the copper-clad aluminum composite wire to be connected and be perpendicular to the length direction of the copper-clad aluminum composite wire, under the protection of an inert gas , realize the connection of copper-aluminum composite wires through low-temperature instantaneous liquid diffusion connection. When low-temperature instantaneous liquid diffusion connection is performed, put the copper-clad aluminum composite wire to be welded into a closed space for vacuuming, and the vacuum degree is 1.5×10 -2 Pa, and then filled with argon for protection, and the local hea...
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Abstract
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