Diameter expansion lead
A technology of expanding diameter wire and conductor layer, applied in conductors, conductive materials, conductive materials and other directions, can solve the problems of restricting the promotion and application of expanded diameter hollow wires, and achieve the effects of simple and feasible preparation process, weight reduction, and excellent mechanical properties.
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Embodiment 1
[0021] A diameter-expanding wire, comprising an aluminum tube, the outer side of the aluminum tube is wrapped with a conductor layer formed by twisting a plurality of aluminum alloy conductors;
[0022] The aluminum alloy conductor is prepared according to the following method:
[0023] 1) Put graphite into a crucible, place it in a muffle furnace for calcination, and under the protection of nitrogen, calcine at 700°C for 3 minutes, take it out, crush it into powder, and obtain material 1;
[0024] 2) Add material 1, carbon fiber, nano-silica and nano-alumina to a high-speed stirrer in turn, stir at 1000 rpm for 5 minutes, then preheat to 100°C, let stand for 5 minutes, and then immerse in the bisphenol A ring In the oxygen resin, it is pulled out in the form of filaments through a shaping die and chopped to obtain modified carbon fibers; among them, material 1, carbon fiber, nano-silica, nano-alumina, and bisphenol A epoxy The mass ratio of the resin is 5:20:1:1:30;
[0025...
Embodiment 2
[0028] A diameter-expanding wire, comprising an aluminum tube, the outer side of the aluminum tube is wrapped with a conductor layer formed by twisting a plurality of aluminum alloy conductors;
[0029] The aluminum alloy conductor is prepared according to the following method:
[0030] 1) Put graphite into a crucible, place it in a muffle furnace for calcination, and under the protection of nitrogen, calcine at 700°C for 3 minutes, take it out, crush it into powder, and obtain material 1;
[0031] 2) Add material 1, carbon fiber, nano-silica and nano-alumina to a high-speed stirrer in turn, stir at 1000 rpm for 5 minutes, then preheat to 100°C, let stand for 5 minutes, and then immerse in the bisphenol A ring In the oxygen resin, it is pulled out in the form of filaments through a shaping die and chopped to obtain modified carbon fibers; among them, material 1, carbon fiber, nano-silica, nano-alumina, and bisphenol A epoxy The mass ratio of the resin is 8:30:2:2:50;
[0032...
Embodiment 3
[0035] The performance test of the aluminum alloy conductor prepared by the present invention:
[0036] 1. Conductivity test:
[0037] The aluminum alloy conductor prepared in Example 1-2 was subjected to a conductivity test, and tested according to the national standard GB / T12966-2008 "Testing Method for Conductivity of Aluminum Alloys", and the results are shown in Table 1:
[0038] Table 1
[0039]
[0040] 2. Mechanical test:
[0041] The aluminum alloy conductor prepared in Example 1-2 was subjected to a tensile test at room temperature, and a standard tensile sample was made according to the national standard GB / T228-2002, and the tensile speed was 0.5mm / min, stretched on a 30KN tensile testing machine, and measured Length is 50mm, measure tensile strength, elongation, and its result is as shown in table 2:
[0042] Table 2
[0043] group Tensile strength (MPa) Elongation (%) Example 1 179 16.3 Example 2 182 16.8
[0044] 3. Heat an...
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