High-strength and high-conductivity copper and zirconium alloy and preparation method thereof
A technology of copper-zirconium alloy and high-conductivity copper, which is applied in the field of high-strength and high-conductivity copper-zirconium alloy and its preparation, can solve the problems of low strength and hardness, low electrical conductivity and elongation, and low tensile strength, so as to improve elongation, Improved electrical conductivity and excellent thermal processing properties
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[0020] A method for preparing a high-strength and high-conductivity copper-zirconium alloy, comprising the following steps:
[0021] Step 1. Preparation of master alloy: put copper and zirconium in a vacuum non-consumable electrode arc melting furnace for melting, and vacuumize until the pressure in the furnace is 5×10 -2 Pa, then filled with argon until the pressure in the furnace is 0.05MPa, heated to 1050~1100°C, smelted for 0.5~1h, and cooled naturally to obtain a Cu-Zr master alloy for later use; put copper and silicon into a vacuum for non-self-consumption Smelting in an arc melting furnace, vacuuming until the pressure in the furnace is 5×10 -2 Pa, then filled with argon until the pressure in the furnace is 0.05MPa, heated to 1010~1040℃, smelted for 0.5~1h, and naturally cooled to obtain a Cu-Si master alloy for later use;
[0022] Step 2, smelting, mold casting: put copper, nickel, silver and the Cu-Zr master alloy and Cu-Si master alloy prepared in step 1 into a high...
Embodiment 1
[0032] A high-strength and high-conductivity copper-zirconium alloy is composed of the following components in weight percentage, 0.1% zirconium, 0.1% nickel, 0.1% silicon, 0.2% silver, and the balance is copper and unavoidable impurity elements.
[0033] The specific preparation method is:
[0034] Step 1. Preparation of master alloy: put copper and zirconium in a vacuum non-consumable electrode arc melting furnace for melting, and vacuumize until the pressure in the furnace is 5×10 -2 Pa, then fill the furnace with argon until the pressure in the furnace is 0.05MPa, heat to 1050°C, smelt for 1h, and get Cu-Zr master alloy after natural cooling, for later use; put copper and silicon into the vacuum non-consumable electrode arc melting furnace Smelting in the furnace, vacuuming until the pressure in the furnace is 5×10 -2 Pa, and then filled with argon until the pressure in the furnace is 0.05MPa, heated to 1020°C, smelted for 1h, and cooled naturally to obtain a Cu-Si master...
Embodiment 2
[0042] A high-strength and high-conductivity copper-zirconium alloy is composed of the following components by weight percentage: 0.15% zirconium, 0.15% nickel, 0.1% silicon, 0.1% silver, and the balance is copper and unavoidable impurity elements.
[0043] The specific preparation method is:
[0044] Step 1. Preparation of master alloy: put copper and zirconium in a vacuum non-consumable electrode arc melting furnace for melting, and vacuumize until the pressure in the furnace is 5×10 -2 Pa, then filled with argon until the pressure in the furnace is 0.05MPa, heated to 1080°C, smelted for 1h, and cooled naturally to obtain a Cu-Zr intermediate alloy for later use; put copper and silicon into a vacuum non-consumable electrode arc melting furnace Smelting in the furnace, vacuuming until the pressure in the furnace is 5×10 -2 Pa, and then filled with argon until the pressure in the furnace is 0.05MPa, heated to 1020°C, smelted for 1h, and cooled naturally to obtain a Cu-Si mast...
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