一起排气管焊接缺陷引发汽车火灾的调查分析  

Investigation of a vehicle fire caused by manufacturing defect

作　　者：张斌[1] 鲁志宝[1] 刘振刚[1] 梁国福[1] 陈迎春[1] ZHANG Bin;LU Zhi-bao;LIU Zhen-gang;LIANG Guo-fu;CHEN Ying-chun(Tianjin Fire Research Institute of MPS,Tianjin 300381,China)

机构地区：[1]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2018年第3期426-428,共3页Fire Science and Technology

基　　金：国家车辆事故深度调查体系项目(NAIS)

摘　　要：通过一起汽车火灾的现场勘验、调查询问及断口分析,认定该起车辆火灾的起火原因为车辆右侧排气歧管与三元催化器焊缝处开裂,高温热烟气由裂口处喷出,引燃附近的燃油管起火。在此基础上,进一步分析了该焊缝处断裂的深层次原因,为汽车厂家改进车辆质量提供依据,为火灾调查人员调查类似车辆火灾提供参考。Through fire scene investigation,inquiry and fracture analysis of a car fire,the fire cause was identified as hot smoke emitting from crack of the welding joint of right catalytic converter and Three-way Catalytic Converter igniting nearby fuel tube.On this basis,further analysis of the deep-seated causes of the fracture is provided,which provides a basis for vehicle manufacturers to im-prove vehicle quality,and provides reference for fire investigators to investigate similar vehicle fires.

关 键 词：汽车火灾 火灾调查 火灾原因 

分 类 号：X928.7[环境科学与工程—安全科学] TU998.12[建筑科学—市政工程]