中国电力 ›› 2015, Vol. 48 ›› Issue (2): 76-80.DOI: 10.11930.2015.2.76

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哈郑工程大跨越用导线制造工艺及质量控制研究

金榕1,李艳2,尤伟任1,冯爱军1,刘雷3,缪小林1,顾孙望1   

  1. 1. 上海中天铝线有限公司,上海 201108;
    2. 国网节能服务有限公司,北京 100052;
    3. 国网冀北电力有限公司物资分公司,北京 100075
  • 收稿日期:2014-11-25 出版日期:2015-02-25 发布日期:2015-11-30
  • 作者简介:金榕(1984—),男,江苏泰州人,工学硕士,工程师,从事架空导线生产制造技术工作。E-mail:jinr@chinaztt.com

Study on Manufacturing Process and Quality Control of Extra High Strength Steel Reinforced Aluminum-Alloy Conductors in the Yellow River Long-Span Section of Hazheng Transmission Project

JIN Rong1, LI Yan2, YOU Weiren1, FENG Aijun1, LIU Lei3, MIAO Xiaolin1, GU Sunwang1   

  1. 1. Shanghai Zhongtian Aluminum Wire Co., Ltd., Shanghai 201108, China;
    2. State Grid Energy Conservation Service Co., Ltd.,Beijing 100052, China;
    3. Materials Branch, State Grid Jibei Electric Power Co., Ltd., Beijing 100075, China
  • Received:2014-11-25 Online:2015-02-25 Published:2015-11-30

摘要: 哈郑工程黄河大跨越标段首次使用900 mm2大截面特高强度钢芯高强度铝合金绞线。分析了大截面特高强度钢芯高强度铝合金绞线的制造工艺要点,总结了质量控制难点,分析了传统工艺生产的产品质量情况,根据技术要求针对性地制定了改进措施,解决了900 mm2大截面特高强度钢芯高强度铝合金绞线质量控制问题。通过工艺改进,铝合金单线导电率稳定达到53%IACS,绞后铝合金单线强度稳定达到310 MPa,同时铝材料中含氢量和含杂量分别降低了60%和70%以上,保证了导线应用的节能性和安全性。

关键词: 特高压直流输电, 哈郑工程, 大跨越, 高强度铝合金线, 特高强度镀锌钢线, 制造工艺, 质量控制

Abstract: The 900-mm2 large-section high strength steel reinforced aluminum-alloy cable is firstly applied in the Yellow River large-span section of Hazheng 800-kV UHVDC transmission project. In this paper, the key points of the conductor manufacturing process are analyzed with the difficulties of quality control being summarized. Then, the analysis on the quality of the traditional manufacturing method is conducted and the improving measurements are put forward according to the related technical requirements, which solves the problem of quality control of 900-mm2 large-section high strength steel reinforced aluminum-alloy cable manufacturing. Through the improvement of manufacturing process, the conductivity is stabilized at 53%IACS and the strength of single wire is increased to 310 MPa. Meanwhile, the hydrogen and impurity contents are largely reduced by more than 60% and 70%, respectively. Therefore, both the energy economy and the supply security of transmission lines are obtained.

Key words: UHVDC, Hazheng transmission project, long-span, high strength aluminum-alloy conductor, extra high strength zinc coated steel conductor, manufacturing process, quality control

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