主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (11): 1495-1498.

• • 上一篇    下一篇

铜导线短路熔痕中氧化亚铜形成机理研究

吉博成   

  1. 银川市消防救援支队，宁夏银川751400
  • 出版日期:2020-11-15 发布日期:2020-11-15
  • 作者简介:吉博成（1994-），男，宁夏银川人，银川市消防救援支队宁东大队新城站副站长，硕士，主要从事石油化工灭火技术、煤化工工艺处置、火灾物证鉴定等研究，宁夏回族自治区银川市宁东中心区文萃东路101 号，751400。

The study on formation mechanism of copper oxide in short circuit traces of copper wire

JI Bo-cheng   

  1. Yinchuan Fire and Rescue Division，Ningxia Yinchuan,751400, China
  • Online:2020-11-15 Published:2020-11-15

摘要：

以铜导线为研究对象，应用XRD 检测和热分析方法，分析了氧化亚铜的形成机理。得出在铜导线加热到800 ℃条件下，加热产物中氧化铜质量分数高达91.60%，而氧化亚铜质量分数仅有0.90%；在铜导线加热1 100 ℃条件下，加热产物中氧化亚铜质量分数增加，达到65.30%，氧化铜质量分数为34.70%。分析铜导线两种加热温度的TG 曲线，结合热力学原理，得到铜的两种氧化物之间的转化温度并比较了两者在不同温度下的稳定性，为火灾调查与事故鉴定提供参考。

关键词:

火灾调查, 铜导线, 短路熔痕, 氧化亚铜

Abstract:

This paper takes the copper wire as the research object,and XRD detection and thermal analysis were used as experimental support to analyze the formation mechanism of copper oxide. The XRD test was performed on copper wire heated  to 800 ̊C and 1 100 ̊C respectively. It was found that when thecopper powder was heated to 800 ̊C, the content of copper oxide in the heating product was as high as 91.60%, while the content of cuprous oxide was only 0.90%; When the copper powder was heated to 1 100 ̊C , the cuprous oxide content reached 65.30%,the copper oxide content was 34.70%. Through the TG curve of copper wire heated to two temperatures, combined with the principle of thermodynamics, the conversion temperature between two copper oxides was obtained and the stability of the two oxides at different temperatures was compared, which provided a reference for fire investigation and accident identification.

Key words: fire investigation, copper wire, short circuit trace;copper oxide