A preparation method of ultra-high tension rare earth copper-silver alloy ultrafine electronic wire
A technology of rare earth copper and silver alloys, which is applied in the direction of conductive materials, conductive materials, metal/alloy conductors, etc., can solve problems such as inability to meet production requirements, and achieve the effect of solving easy disconnection
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[0027] In the specific implementation process, the preparation method of the ultra-high tension rare earth copper-silver alloy ultra-fine electronic wire rod of the present invention, the specific steps are as follows:
[0028] (1) According to the mass percentage composition of the rare earth copper-silver alloy, high-purity electrolytic copper plate (more than 99.99wt% in purity) and high-purity silver particles (more than 99.99wt% in purity), high-purity rare earth copper master alloy block (99.9wt% in purity) Above) is put into the vacuum smelting furnace, melts;
[0029] (2) Using electromagnetic stirring under vacuum and rare earth alloying continuous casting method to prepare an alloy rod billet with purified components, fully equiaxed crystal structure, and a diameter of 13.2 to 21.1 mm;
[0030] (3) Peel the alloy rod billet in step (2), and then carry out continuous extrusion, according to the extrusion ratio of 1:1, extrude into an ultra-fine grain structure (grain ...
Embodiment 1
[0035] In this example, the Cu-1Ag-0.01La alloy Ф0.02mm ultra-fine electron wire was prepared. According to the proportion, a 300mm×300mm×12mm high-purity electrolytic copper plate was placed in the crucible of the continuous casting furnace under vacuum, and according to the proportion, the high-purity silver particles with a diameter of 3mm and Cu-15% La master alloy into the alloy secondary addition bin. Add the alloy after the copper plate is melted, use mechanical stirring to even out the alloy composition, then control the temperature of the continuous casting mold to 1180°C, the frequency of the electromagnetic stirring power supply to 60Hz, and start continuous traction. The diameter of the alloy rod billet is 13.2mm.
[0036] The alloy billet with a diameter of 13.2mm was peeled off, and the amount of peeling was 10.3wt%, to obtain a 12.5mm alloy billet, and then it was continuously extruded. According to the extrusion ratio of 1:1, the extrusion temperature was 550°C,...
Embodiment 2
[0040] The difference from Example 1 is that in this example, the Cu-2Ag-0.02La alloy Ф0.016mm ultra-fine electron wire is prepared, and a 400×400×14mm high-purity electrolytic copper plate is placed in a vacuum down-leading continuous casting furnace according to the proportion For the crucible, put the high-purity silver particles with a diameter of 4 mm and the Cu-20% La master alloy into the alloy secondary dosing bin according to the proportion. After the copper plate is melted, the alloy is added, and the alloy composition is evenly stirred by mechanical stirring. Then, the temperature of the continuous casting mold is controlled to 1200 ° C, the frequency of the electromagnetic stirring power supply is 70 Hz, and continuous traction is started. The diameter of the alloy billet is 21.1 mm.
[0041]The continuous casting 21.1mm alloy billet was peeled, the skinning amount was 10.2wt%, and the 20mm alloy rod billet was obtained, and then continuously extruded, according to ...
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