Thermal-cracking-resistant cable-used copper alloy conductive material and preparation method thereof
A technology of conductive materials and copper alloys, applied in the direction of conductive materials, conductive materials, cable/conductor manufacturing, etc., can solve the problems of copper alloy thermal processing performance, insufficient thermal cracking resistance, etc. Effects of thermal tearing properties and excellent tensile strength
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Embodiment 1
[0050] A copper alloy conductive material for thermal cracking-resistant cables is made of the following raw materials in weight percentage:
[0051] Ni 0.15wt%,
[0052] Cr 0.9wt%,
[0053] Ba 0.3wt%,
[0054] Mo 0.15wt%,
[0055] Ge 0.7wt%,
[0056] Mg 1.0wt%,
[0057] The balance is Cu.
[0058] The preparation method of the above-mentioned copper alloy conductive material for cables comprises the following steps:
[0059] (1) Mix the raw materials according to the stated dosage and then smelt them in a high-temperature smelting furnace. The temperature of the high-temperature smelting furnace is 730°C, keep the temperature constant, and smelt for 0.5h;
[0060] (2) Raise the temperature to 1120°C, keep the temperature fixed, and smelt for 1.5h;
[0061] (3) Lower the temperature of the melting furnace to 710°C and keep it warm for 2 hours;
[0062] (4) After the alloy ingot is prepared, the alloy ingot is rolled into an alloy rod, and then the alloy rod is drawn in...
Embodiment 2
[0064] A copper alloy conductive material for thermal cracking-resistant cables is made of the following raw materials in weight percentage:
[0065] Ni 0.1wt%,
[0066] Cr 1.2wt%,
[0067] Ba 0.1wt%,
[0068] Mo 0.2wt%,
[0069] Ge 0.5wt%,
[0070] Mg 1.3wt%,
[0071] The balance is Cu.
[0072] The preparation method of the above-mentioned copper alloy conductive material for cables comprises the following steps:
[0073] (1) Mix the raw materials according to the stated dosage and then smelt them in a high-temperature smelting furnace. The temperature of the high-temperature smelting furnace is 750°C, keep the temperature constant, and smelt for 1 hour;
[0074] (2) Raise the temperature to 1120°C, keep the temperature fixed, and smelt for 1.5h;
[0075] (3) Lower the temperature of the melting furnace to 730°C and keep it warm for 2 hours;
[0076] (4) After the alloy ingot is prepared, the alloy ingot is rolled into an alloy rod, and then the alloy rod is drawn in...
Embodiment 3
[0078] A copper alloy conductive material for thermal cracking-resistant cables is made of the following raw materials in weight percentage:
[0079] Ni 0.2wt%,
[0080] Cr 0.5wt%,
[0081] Ba 0.5wt%,
[0082] Mo 0.1wt%,
[0083] Ge 0.9wt%,
[0084] Mg 0.7wt%,
[0085] The balance is Cu.
[0086]The preparation method of the above-mentioned copper alloy conductive material for cables comprises the following steps:
[0087] (1) Mix the raw materials according to the stated dosage and then smelt them in a high-temperature smelting furnace. The temperature of the high-temperature smelting furnace is 740°C, keep the temperature constant, and smelt for 0.5h;
[0088] (2) Raise the temperature to 1150°C, keep the temperature fixed, and smelt for 2 hours;
[0089] (3) Lower the temperature of the melting furnace to 750°C and keep it warm for 1 hour;
[0090] (4) After the alloy ingot is prepared, the alloy ingot is rolled into an alloy rod, and then the alloy rod is drawn int...
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