Preparation system and method of high-strength and high-conductivity heterogeneous copper wire
A high-conductivity, copper wire technology, applied in the direction of manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of easy oxidation of alloy powder, low production efficiency, long time consumption of alloy powder, etc., to achieve synergistic improvement of strength and toughness, and production efficiency High, time-consuming effect
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[0049] The preparation method of the present invention is specifically as follows: firstly, two kinds of copper / copper alloy plates are alternately mixed and superimposed, and then crimped and deformed into a rod in a crimping deformation device to realize the preliminary mechanical bonding of the interface. Subsequently, by rotating and drawing, the interface between the materials is plastically formed to form a dense interface structure, and the heterogeneous copper wires with alternately distributed components in the radial direction are prepared. After the wire is coiled, the difference in the recrystallization temperature of the dissimilar alloy is used to perform multi-polar recrystallization on the obtained wire to adjust the micro-grain size, and realize the multi-grain size feature with the grain size alternating radially. The alternately distributed soft and hard phase interfaces of coarse and fine crystals produce mutual restraint, so that the material can obtain back...
Embodiment 1
[0057] In this embodiment, pure copper and Cu-Zn alloy are taken as specific embodiments.
[0058] In the first step, the mixture is laminated, and three pure copper plates (99.9wt.%) with a length of 3m, a width of 1.5m and a thickness of 3cm are selected and three Cu-Zn alloy plates of the same size (Cu-10wt. % Zn), surface treatment is performed respectively to remove the oil stain and oxide film on the surface, and polish until the surface is bright. The processed two metal plates are mixed and laminated in a vertical direction alternately, such as figure 2 Shown. The ends and tails of the blank are tied and fixed with copper wires with a diameter of 6mm to prevent looseness and confusion.
[0059] The second step is crimping, sending the bundled and fixed metal sheet to the crimping device, and adjusting the height of the lower rollers so that the vertical height spacing between the upper and lower rollers is 1.8m. The resistance wire in the detachable support 3 is used to ...
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