Special copper alloy and manufacturing method thereof
一种铜合金、合金的技术,应用在新型高强高导电铜基合金及其制备领域,能够解决材料导电率、高温强度、高温硬度和软化温度热强性能无明显改进等问题,达到软化温度高、导电率高、室温强度大的效果
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[0023] The chemical composition (wt%) of the special copper alloy material of the present invention is: 0.01-5.0Eu, 0.01-5.0Gd, 0.01-5.0Er, 0.01-3.0C, and the balance is Cu.
[0024] The preparation method of special copper alloy material is characterized in that it includes the following process steps in sequence:
[0025] (1) In a vacuum intermediate frequency furnace (vacuum degree: >1×10 -2 Pa) Melting Cu, Eu, Gd, Er alloys in proportion;
[0026] (2) Under vacuum conditions (vacuum degree: >1×10 -2 Pa) at a cooling rate of 10 4 ~10 5 K / S atomizes the alloy liquid obtained in step (1) into powder;
[0027] (3) Mix the CuEuGdEr powder and graphite powder (C) in a mechanical alloying high-energy ball milling device for 24 hours;
[0028] (4) Pressing and forming the alloy powder obtained in step (3) under a pressure of 100-200 MPa;
[0029] (5) Vacuum sintering at 800~900℃ (vacuum degree: >1×10 -2 Pa) The alloy compact obtained in step (3);
[0030] (6) Then the CuEuGdErC alloy ...
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