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隧道建设(中英文) ›› 2012, Vol. 32 ›› Issue (5): 749-751.DOI: 10.3973/j.issn.1672-741X.2012.05.025

• 施工机械 • 上一篇    下一篇

盾构刀具耐磨堆焊材料的合理选择

胡建平,唐亮,马作强    

  1. (北京固本科技有限公司, 北京 100081)
  • 收稿日期:2012-07-26 修回日期:2012-08-30 出版日期:2012-10-20 发布日期:2012-10-30
  • 作者简介:胡建平(1984—),男,内蒙古包头人,2010年毕业于北京工业大学材料学院金属材料专业,硕士,工程师,主要从事耐磨堆焊方面的研究工作。

Selection of Wearingresistant Submerged Arc Welding Wires for Cutting Tools of Shield Machines

HU Jianping, TANG Liang, MA Zuoqiang   

  1. (Beijing Kooben Technology Co., Ltd., Beijing 100081, China)
  • Received:2012-07-26 Revised:2012-08-30 Online:2012-10-20 Published:2012-10-30

摘要: 为合理选择一种最适合盾构刀具耐磨处理的堆焊材料,根据盾构刀具的磨损原理,选取4种耐磨堆焊材料,并对其焊接方法的工艺性能、高温钎焊后堆焊层的硬度、抗脱落性和耐磨性进行试验对比。根据试验结果综合比较发现,KB600耐磨焊丝在950 ℃高温钎焊后硬度大于55 HRC,具有优良的抗脱落性能和耐磨性,是所选材料中最适合盾构刀具堆焊的耐磨材料。

关键词: 盾构刀具, 高温钎焊, 堆焊材料, 耐磨性, 硬度, 抗脱落性

Abstract: Four types of wearingresistant wires are tested in terms of the welding technical characteristics, the hardness of the welding layers after brazing, the antiloosening capacity and the wearingresistant capacity. The testing results show that the hardness of KB600 wearingresistant welding wires after 950 ℃ brazing is higher than that of 55HRC wearingresistant wires and that KB600 wearingresistant welding wires, which have high antiloosening capacity and good wearingresistant capacity, are the most suitable wearingresistant submerged arc welding wires for cutting tools of shield machines.

Key words: cutting tool, high temperature brazing, submerged arc welding wire, wearing resistance, hardness, antiloosening