| 铜镁、铜锡合金接触线的制备及组织性能研究 |
| |
| 引用本文： | 张光伟,官珊丹,张建波,刘耀.铜镁、铜锡合金接触线的制备及组织性能研究[J].上海理工大学学报,2015,36(2):71-74. |
| |
| 作者姓名： | 张光伟 官珊丹 张建波 刘耀 |
| |
| 作者单位： | 赣州江钨拉法格高铁铜材有限公司, 江西 赣州 341000;赣州江钨拉法格高铁铜材有限公司, 江西 赣州 341000;江西理工大学 铜冶炼与加工国家工程中心, 江西 赣州 341000;江西理工大学 铜冶炼与加工国家工程中心, 江西 赣州 341000 |
| |
| 基金项目： | 国家自然科学基金资助项目(51461017);江西省教育厅资助项目(GJJ14447);江西省教育厅青年基金资助项目(GJJ14443) |
| |
| 摘 要： | 通过上引连续铸造—连续挤压法制备了铜镁、铜锡两种合金接触线.结果表明,镁、锡元素的添加均能显著提高接触线的强度,并保证较高的导电率,镁元素的强化效果更为显著.此外,通过连续挤压扩展变形显著改善了铜镁、铜锡合金接触线的铸态组织,获得超细晶粒.主要原因在于上引铸杆在连续挤压过程中处于高压高温的状态,铸态晶粒完全破碎,动态再结晶发生完全.
|
| 关 键 词： | 连续挤压 铜镁合金 铜锡合金 接触线 |
| 收稿时间： | 2014/10/11 0:00:00 |
Preparation and Organization Performance of Copper-magnesium and Copper-tin Alloy Contact Wire |
| |
| ZHANG Guangwei,GUAN Shandan,ZHANG Jianbo and LIU Yao.Preparation and Organization Performance of Copper-magnesium and Copper-tin Alloy Contact Wire[J].Journal of University of Shanghai For Science and Technology,2015,36(2):71-74. |
| |
| Authors: | ZHANG Guangwei GUAN Shandan ZHANG Jianbo and LIU Yao |
| |
| Institution: | Ganzhou Jiangwu Lafarga High-speed Railway Copper Materials Co., Ltd., Ganzhou 341000, China;Ganzhou Jiangwu Lafarga High-speed Railway Copper Materials Co., Ltd., Ganzhou 341000, China;Jiangxi University of Science and Technology, Ganzhou 341000, China;Jiangxi University of Science and Technology, Ganzhou 341000, China |
| |
| Abstract: | Copper-magnesium and copper-tin alloy contact wires were prepared by the cast-continuous extrusion.The results show that adding magnesium and tin elements could significantly increase the strength of the contact wire and ensure high conductivity performance.Magnesium had a more conspicuous strengthening effect.In addition,the cast microstructure of copper-magnesium and copper-tin alloy contact wires significantly improved by expansion deformation.The ultra-fine grain was obtained in that the cast grain was completely broken and then recrystallized dynamically when the up-cast rod remained in a state of high pressure and high temperature during the process of continuous extrusion. |
| |
| Keywords: | continuous extrusion copper-magnesium alloy copper-tin alloy contact wire |
|
| 点击此处可从《上海理工大学学报》浏览原始摘要信息 |
| 点击此处可从《上海理工大学学报》下载免费的PDF全文 |
|
