摘要
一次短路熔痕、二次短路熔痕和搭铁短路熔痕是汽车火灾中常见的痕迹物证,本文首次提出在12V和24V汽车电源下,采用定性模拟试验的方法,分别制备了这3种熔痕样品,并对样品的宏观形貌、金相组织等进行分析、归纳和总结,最终得出结论:对汽车火灾中提取的导线熔痕进行宏观分析和金相分析等,可有效地判断导线熔痕的短路类型,给汽车火灾原因的认定提供重要的科学依据和技术支持。
Three common melted marks caused by short circuit in vehicle fire, which are called the first short circuit melted mark, second short circuit melted mark and grounded short circuit melted mark are prepared by experiments, By analyzing the macro-appearance, metallurgical structure and other characteristics of samples, it is concluded that the three melted marks found in vehicle fire investigation can he of great use to determine the fire cause.
出处
《汽车电器》
2006年第2期56-59,共4页
Auto Electric Parts
基金
公安部科研项目--汽车火灾现场勘查与鉴定技术的研究(20048562201)
关键词
汽车火灾
物证鉴定
短路熔痕
金相分析
vehicle fire
material evidence identification
melted marks
metallographic analysis
