挤拉成型的CuNiBeZr槽楔工艺及性能研究

Technology of the Formed CuNiBeZr Slot Wedge by Hot Extrusion and Cold Drawing and Its Characteristic Study

在传统CuNiBe中加入微量Zi.元素,可提高材料的高温强度和伸长率。用“热挤压+冷拉”的成型工艺进行制造,解决了皱铜槽楔材料表面质量差的问题并克服了钺铜难以直接成型的困难。和传统锻件相比,大大提高了材料利用率。经对比发现:挤拉成型CuNiBeZr槽楔的室温和高温力学和导电性能与CuCoBeZr相当,均优于其余铜合金槽楔。

Adding microelement Zr into the traditional CuNiBe materials was able to increase the *materials high-temperature strength and specific elongation. Technology of the formed CuNiBeZr slot wedge by hot extrusion and cold drawing solved the problem of poor surface quality of CuNiBe slot wedge materials and hard to directly form up as well. The utility ratio was increased significantly, compared with the traditional forged pieces. The mechanical and conductive property of the formed CuNiBeZr slot wedge both under room and high temperature were as same as those of CuCoBeZr, far more excellent than those of other copper alloy slot wedges.