消防射水对导线火烧熔痕金相组织的影响  

Effect of water on metallographic structure of fire melted mark

作　　者：张金专[1] 罗亮 文玉秀[1] 胡建国[1] 

机构地区：[1]武警学院消防工程系,河北廊坊065000 [2]南昌市高新技术产业开发区消防大队,江西南昌330029

出　　处：《火灾科学》2007年第2期105-110,共6页Fire Safety Science

摘　　要：模拟火灾现场,制作不同线径铜导线的火烧熔珠,然后在不同温度下对熔珠进行冷却。利用金相显微镜对火烧熔珠的金相组织进行观察,发现铜导线火烧熔痕在不同温度下经消防射水冷却后,会出现类似一次短路和二次短路熔痕的金相组织。Simulating fire scene, melted marks of copper wires with different diameters caused by fire were made and cooled by water. The metallographic structure of melted mark was observed and metallographic structure with secondary short circuited melted mark and primary short circuited melted mark was found.

关 键 词：铜导线 火烧熔痕 金相组织 

分 类 号：TG115.21[金属学及工艺—物理冶金]