Study on the Spark Ignition Characteristics of Friction Between Different Metal Materials;

The paper introduces the research and applications of piezoelectric ceramics in ignition and detonation, and summarize some effective methods for improving the properties and ageing of ceramic ma terials.

With the research of adjoining combustible ignition,this article founded math model for radiation ignition of adjoining combustible,and combine with idiographic instance,discussed the influence of different room configurations and combustible dispose modes.

Through methane simulation experiment on ignition and blasting due to seam roof rock friction in Qinshui Coal Mining District of Yangcheng, it is shown that sparks will be generated through friction while caving ,causing gas and water mixture to fire, it is big hidden sources which cause methane blasting accident in goaf.