西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (2): 56-59.DOI: 10.3863/j.issn.1000-2634.2001.02.016

• 油气地面工程 • 上一篇    下一篇

三牙轮钻头硬质合金堆焊层微观组织分析

刘承杰 汤小文 陈浩 扬眉 任小良

  

  1. 西南石油学院机电工程学院,四川 南充 637001
  • 收稿日期:2000-10-20 修回日期:1900-01-01 出版日期:2001-04-20 发布日期:2001-04-20
  • 通讯作者: 刘承杰

MICROSTRUCTURE ANALYSIS OF SURFACING WELDING LAYER OF CEMENTED CARBIDE ON THREE CONE BIT

LIU Cheng-jie TANG Xiao-wen CHEN Hao et al
  

  1. Southwest Petroleum Inst ,China
  • Received:2000-10-20 Revised:1900-01-01 Online:2001-04-20 Published:2001-04-20
  • Contact: LIU Cheng-jie

摘要: 研究了WC-Co、铸造碳化钨硬质合金的淬火及深冷处理等热处理工艺,分析了WC-Co、铸造碳化钨硬质合金的金相组织,分析了WC-Co、铸造碳化钨硬质合金淬火和深冷处理提高性能的原因。研究了淬火和深冷处理提高性能的机理。结果证实WC-Co硬质合金金相组织为γ′和M7C3、M6C、M23C6型化合物,铸造碳化钨硬质合金金相组织为η和M7C3、M6C、M23C6型化合物。淬火及深冷处理能强化粘接相,改善合金组织结构和微观结构。

关键词: 铸造碳化钨, WC-Co硬质合金, 金相分析, 堆焊层, 深冷处理

Abstract: In this paper, we studied the quenching and cryogenic treatment processes of WC-Co and founding tungsten carbide cemented carbide, and analyzed their microstructure and the cause of increased performance of these treatment as well as the mechanism of increased performance of these treatment. It is
conformed that the microstructure of WC-Co cemented carbide isγ′and M7C3, M6C, W23C6carbide and founding tungsten carbide isηand M7C3, M6C, M23C6. The adhesive phase can be strengthened and the histology and the microstructure can be improved by quenching and cryogenic treatment.

Key words: roller bit, carbide insert, metallographic analysis, surfacing welding layer, cryogenic treatment

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