摘要
模拟电吹风正常使用、通电过热、正常使用后受火灾作用和通电过热后受火灾作用,获得在不同试验条件下的电吹风火灾残留物。用扫描电子显微镜对电吹风火灾残留物中的电热丝显微形貌进行观察。结果表明:在不同试验条件下,电热丝的显微形貌有明显的不同。因此,利用扫描电子显微镜观察电吹风电热丝的显微形貌,可以直观、快速地鉴别电吹风在火灾前所处的状态,为电吹风火灾事故的认定提供了一种新的技术方法。
Simulating four conditions of the hair dryer：normal used,electrical superheated,heated in fire after normal used,and heated in fire after electrical superheated,the fire residues of hair dryer were investigated. The microscopic appearances of heating wire were observed by scanning electron microscope.The result indicated that the microscopic appearances in different conditions were not same.Therefore,the state of the hair dryer before fire could be distinguished directly and quickly by observing the microscopic appearances of heating wires.This provided a new technical method for the recognition of fire accident.
出处
《理化检验（物理分册）》
CAS
2010年第1期18-20,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
电吹风
火灾残留物
显微形貌
鉴定技术
电热丝
hair dryer
fire remains
microscopic appearances
appraisal technology
heating wire
