鉴定矿井火灾原因的金相分析技术

Use the method of metallographic examination to evaluate the reason of the conflagration in the coal mines

金相分析技术使金属材料的宏观性能与内部微观组织结构建立起相互对应的、定性和定量的关系 ,经历高温火灾的金属材料 ,其内部组织结构发生的变化与火灾时形成的加热、保温及冷却等条件密切相关 .通过对火灾物证的金相分析 ,可以搞清火灾过程的许多重要特征和火灾原因 .煤矿井下无处不在的金属设备、金属构件、电气设备及线路 。

The correlative, qualitative and determinate relation between macroscopic property and internal microscopic structure of metal material is built because of metallographic examination technology. When the metal material is badly heated in the conflagration, the change of its inner structure has a close relation with the condtion when it is being heated, preserved and cooled in the disaster. Many important reasons why and how it takes place can be gotten by using the metallographic examination. And the metallographic examination is suitable to determine the reason of mine fire for the so much metal equipment, metal component, electric equipment and lines in the mine.