金属热处理 ›› 2022, Vol. 47 ›› Issue (1): 69-72.DOI: 10.13251/j.issn.0254-6051.2022.01.012

• 专栏 • 上一篇    下一篇

Nb-V微合金化高碳钢在弹性盖板针布用钢丝上的运用

卓城之1, 高丽1, 顾炜华1, 雍岐龙1,2, 陆忠1   

  1. 1.金轮针布江苏有限公司, 江苏 南通 226143;
    2.钢铁研究总院 工程用钢研究院, 北京 100081
  • 收稿日期:2021-09-21 修回日期:2021-11-01 出版日期:2022-01-25 发布日期:2022-02-18
  • 作者简介:卓城之(1982—),男,工程师,主要研究方向为梳理器材工艺, E-mail: zhuocz@geron-card.com

Application of Nb-V microalloyed high carbon steel in steel wire for flexible flat-top card clothing

Zhuo Chengzhi1, Gao Li1, Gu Weihua1, Yong Qilong1,2, Lu Zhong1   

  1. 1. Geron-Card Co., Ltd, Nantong Jiangsu 226143, China;
    2. Research Institute of Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, China
  • Received:2021-09-21 Revised:2021-11-01 Online:2022-01-25 Published:2022-02-18

摘要: 通过对比添加Nb前后72B钢丝的显微组织、拉伸曲线、弯曲次数分析了钢丝的基本性能变化。结果表明,与72B钢丝相比,添加Nb后钢丝成品的晶粒度从12.5~13级升高至14~14.5级;屈服强度从1745.8 MPa提升至2108 MPa, 提高了约20.7%;抗拉强度从1930.7 MPa提升至2209.5 MPa, 提升了14.4%;断裂前的弯曲次数从1041次增加到1335次,增加了28.2%。说明钢丝在盖板针布的工作环境下具备更好的耐磨性,可以显著提高盖板针布的使用寿命。通过现场试验的验证,新材料钢丝制成的盖板针布的寿命提升了约30%。

关键词: 铌, 微合金化技术, 高碳钢钢丝, 弹性盖板针布

Abstract: Changes of basic properties of the 72B steel wires before and after the addition of niobium were analyzed by comparing the microstructure, tensile curves, and number of bends before fracture of the steel wires. The results show that comparing with 72B steel wire, the grain size grade of the steel wire product with Nb addition increases from 12.5-13 to 14-14.5. At the same time, the yield strength increases by 20.7% from 1745.8 MPa to 2108 MPa, and the tensile strength increases by 14.4% from 1930.7 MPa to 2209.5 MPa. The bending test shows an increasement of 28.2% from 1041 to 1335 before the fracture. These improvements imply the possibility to have higher wear resistance and significant improvement in the life span of the flat top card clothing when the steel wire is applied in the operating environment. Such improvement has been verified by the field experiments, i.e., the life span of the flat top card clothing made of the new niobium microalloyed steel wire is improved by 30%.

Key words: niobium, microalloying technology, high carbon steel wire, flexible flat-top card clothing

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